WO2023046195A1 - 一种内窥镜活检阀 - Google Patents
一种内窥镜活检阀 Download PDFInfo
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- WO2023046195A1 WO2023046195A1 PCT/CN2022/121667 CN2022121667W WO2023046195A1 WO 2023046195 A1 WO2023046195 A1 WO 2023046195A1 CN 2022121667 W CN2022121667 W CN 2022121667W WO 2023046195 A1 WO2023046195 A1 WO 2023046195A1
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- valve
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
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- the present application relates to the technical field of medical devices, in particular to an endoscopic biopsy valve.
- Endoscope is an optical instrument, which is composed of cold light source lens, fiber optic wire, image transmission system and screen display system. Observe the tissues of the internal cavities of human organs.
- the biopsy valve is a kind of elastic sealing device, which belongs to one of the accessories of the endoscope.
- the valve body is provided with an arc-shaped one-way valve, and the center of the one-way valve is provided with a small hole for endoscopic surgical instruments such as biopsy forceps to pass through.
- Biopsy valves are used for the upper opening of biopsy tubing of endoscopic equipment. When the biopsy and surgical instruments pass through or withdraw from the endoscopic biopsy pipeline, the valve can block the backflow of the patient's body fluid or liquid medicine along the endoscopic biopsy pipeline to prevent overflow or reverse spray, so as to control iatrogenic pollution.
- the other is to achieve sealing.
- the cap and the The interference fit of the valve body makes the cap of the soft rubber material and the valve body of the soft rubber material close to each other, thereby achieving sealing.
- the cap and the valve body are made of soft rubber, under the external pressure of air pressure, both are easy to Deformation, once deformed, the cap tends to pop open under the force of air pressure, causing contaminated liquid to splash out. It can be seen that the sealing effect of the existing biopsy valve is not good and the cover is prone to appear during the suction process, and it needs more force to disassemble, resulting in the splashing of tissue and body fluids, which seriously affects the health and safety of medical staff.
- the present application provides an endoscope biopsy valve, which is used to solve the problem of poor sealing effect between the existing valve body and the metal seat of the endoscope, and between the cap and the valve body only through interference fit. And in the suction process, it is easy to have a flip cover, which causes the tissue body fluid to splash out, seriously affecting the technical problems of the health and safety of medical staff.
- the application provides an endoscopic biopsy valve, including a valve body, a support, a cap and a connecting strip; one end of the connecting strip is connected to the valve body, and the other end is connected to the cap, and the material of the support is Hard plastic; the top of the valve body is provided with a cover groove matching the support, and the support is arranged in the cover groove, when the cap covers the top of the valve body, The cap is clamped with the support member; the bottom of the valve body is provided with a connecting groove matching the connecting seat of the endoscope, the top and bottom of the valve body are connected, and the middle part of the valve body is open Extending to the bottom of the valve main body, a protruding piece is formed, and a first locking groove is formed between the protruding piece and the connecting groove. When the connecting groove is sleeved on the connecting seat of the endoscope, the protruding piece is embedded In the connecting seat, the connecting seat is engaged with the first slot.
- a hard plastic support is added between the cap and the valve body.
- the hard plastic support can provide a support point for the cap and the valve body. Due to the hard plastic
- the supporting member provides rigid support for the cap of soft material, and the combination of soft and hard makes the whole biopsy valve stable and not deformed, so that the cap will not pop open suddenly, and the sealing performance is strong.
- the opening in the middle is designed as a protruding piece, which can be embedded in the connecting seat of the existing endoscope.
- the protruding piece is embedded in the connecting seat, and the first card slot and the connecting seat
- the air pressure gradually increases and rebounds, the air pressure can be pressed to both sides of the convex piece, making the convex piece and the connecting seat more tightly, improving the sealing performance, thus solving the problem of the existing valve body and endoscope.
- the sealing between the metal seats and between the cap and the valve body is only achieved through interference fit. Therefore, the sealing effect is not good and the cap is prone to pop up during the suction process, resulting in tissue fluid splashing, seriously affecting the health and safety of medical staff technical problems.
- the support member includes an upper fitting portion and a lower engaging portion, the diameter of the upper fitting portion is smaller than the diameter of the lower engaging portion, and the cap includes a covering portion;
- the cover part is engaged with the lower engaging part. Since the diameter of the upper fitting part is smaller than that of the lower engaging part, the sealing performance of the covering part is relatively high, and because the covering part and the lower engaging part are engaged, the cap is prevented from being easily bounced off under the action of air pressure.
- the outer sidewall of the covering part and the inner sidewall of the upper fitting part are interference fit, and the inner sidewall of the upper fitting part is divided into an upper sidewall and a lower sidewall, and the upper side The wall and the lower sidewall form an obtuse angle. Due to the obtuse angle between the upper side wall and the lower side wall, the outer side wall of the covering portion is not easily detached from the supporting member, and the sealing performance between the two is also improved.
- a gap is provided at the clamping position of the cover part and the lower clamping part. Not only does not affect the overall sealing performance of the biopsy valve, but also reduces the contact area between the two, and also reduces the resistance when opening or closing the cap, thereby facilitating the operation of medical staff.
- the cap further includes a breaking part, the breaking part is arranged opposite to the connecting bar, and the breaking part is provided with several first convex lines.
- Setting the opening part can facilitate the medical staff to open and close the cap, and setting the first convex line can also increase the friction between the hand of the medical staff and the opening part, so that it is more convenient for the medical staff to open or close the opening part.
- the cover portion defines a cavity communicating with the bottom of the valve body.
- the gas in the biopsy valve can enter the cavity through the connecting groove and the middle opening of the valve body, and the pressure of the gas acts on the side wall of the cavity, making the lid and the support more tightly, so that the lid is tightly pressed to the Support piece, not easy to bounce off.
- the top of the cap and the cavity opposite to each other are concaved inward to form a groove. It is convenient for medical staff to put their fingers in the groove and press the cap when closing the cap, so that the cap and the valve body are tightly pressed together.
- the bottom of the connecting groove near the valve main body is provided with a second locking groove that engages with the connecting seat of the endoscope.
- a space is provided between the connecting groove and the connecting seat of the endoscope. It is convenient for medical staff to assemble and disassemble the biopsy valve without too much effort, and the operation is relatively smooth.
- second convex lines are provided on the outside of the valve body. Increase friction and play anti-slip effect.
- Fig. 1 is the structural representation of existing biopsy valve and endoscope metal seat provided by the present application
- Fig. 2 is the schematic diagram of the assembly structure of the existing biopsy valve and metal seat provided by the present application
- FIG. 3 is a schematic diagram of the overall structure of an endoscopic biopsy valve provided by the present application.
- FIG. 4 is a schematic diagram of an exploded structure of an endoscopic biopsy valve provided by the present application.
- Fig. 5 is a schematic cross-sectional structure diagram of an endoscopic biopsy valve provided in the present application in a closed state
- FIG. 6 is a schematic cross-sectional structure diagram of an endoscopic biopsy valve provided in the present application in an open state
- FIG. 7 is a schematic diagram of an exploded cross-sectional structure of an endoscopic biopsy valve provided by the present application.
- Fig. 8 is a schematic diagram of a cross-sectional connection structure of an endoscope biopsy valve and an endoscope connecting seat provided by the present application;
- Fig. 9 is a schematic diagram of air pressure flow of an endoscopic biopsy valve provided in the present application installed on a connecting seat.
- the embodiment of the present application provides an endoscope biopsy valve, which is used to solve the problem of sealing between the existing valve body and the metal seat of the endoscope, and between the cap and the valve body only through interference fit. Therefore, the sealing effect It is not good, and it is easy to pop the cover during the suction process, causing the tissue and body fluid to splash out, which seriously affects the technical problems of the health and safety of medical staff.
- the embodiment of the present application provides an endoscopic biopsy valve, including a valve body 100, a support 200, a cap 300 and a connecting strip 400; one end of the connecting strip 400 is connected to the valve main body 100, and the other end Connect the cap 300, the material of the support 200 is hard plastic; the top of the valve body 100 is provided with a cover groove 101 matching the support 200, and the support 200 is set in the cover groove 101, when the cap 300 covers the valve body When the top of the valve body 100 is connected, the cap 300 and the support member 200 are clamped; the bottom of the valve body 100 is provided with a connection groove 102 that matches the connection seat 500 of the endoscope, the top and bottom of the valve body 100 communicate, and the valve body 100 The middle opening extends to the bottom of the valve body 100 to form a convex piece 103, and a first engaging groove 104 is formed between the convex piece 103 and the connecting groove 102.
- the connecting groove 102 is sleeved on the connecting seat 500 of the endoscope,
- valve body 100 the cap 300 and the connection strip 400 in this embodiment are the same as those of the existing biopsy valves, that is, they are made of soft rubber.
- the support member 200 is set on the top of the valve body 100. Since the material of the support member 200 is hard plastic, when the cap 300 is closed on the top of the valve body 100, the cap 300 and the support member 200 are snapped together. Because the soft rubber cap 300 Combined with the hard plastic support 200, when the air pressure is pushed out, one is soft and the other is rigid, and the combination of the two is not easy to deform. Therefore, it not only achieves the effect of sealing, but also avoids the sudden springing of the cap 300, making the biopsy Interstitial fluid in the valve pops out.
- the convex piece 103 is embedded in the connecting seat 500, and the interference fit between the convex piece 103 and the connecting seat 500 achieves a sealing effect.
- the pressure is pressed against the side of the protruding piece 103 to compress the protruding piece 103 and the connecting seat 500, thereby greatly improving the sealing performance.
- the support 200 in this embodiment includes an upper fitting portion 201 and a lower snapping portion 202, the diameter of the upper fitting portion 201 is smaller than the diameter of the lower snapping portion 202, the cap 300 includes a covering portion 301; the cap 300 When the valve main body 100 is covered, the covering part 301 and the lower engaging part 202 are engaged. Since the diameter of the upper fitting part 201 is smaller than that of the lower engaging part 202, the sealing performance of the covering part 301 is relatively large, and because the covering part 301 is engaged with the lower engaging part 202, it also prevents the cap 300 from being exposed to air pressure. Almost pops open under action.
- the outer sidewall of the covering part 301 and the inner sidewall of the upper fitting part 201 are interference fit, and the inner sidewall of the upper fitting part 201 is divided into an upper sidewall 2011 and a lower sidewall 2012, and the upper sidewall 2011 and the lower sidewall
- the sidewall 2012 has an obtuse angle. It should be noted that, since the upper sidewall 2011 and the lower sidewall 2012 form an obtuse angle, the outer sidewall of the covering portion 301 is not easily detached from the supporting member 200 , and the sealing between them is also improved.
- a gap is provided at the clamping position of the cover part 301 and the lower clamping part 202 . It should be noted that setting a gap at the clamping position of the cover part 301 and the lower clamping part 202 not only does not affect the overall sealing performance of the biopsy valve, but also reduces the contact area between the two, and also reduces the risk of opening or closing.
- the resistance of the cap is 300°, which facilitates the operation of the medical staff.
- the cap 300 also includes a breaking part 302 , which is arranged opposite to the connecting bar 400 , and the breaking part 302 is provided with several first convex lines (not shown in the figure). Setting the breaking part 302 can facilitate the medical staff to open and close the cap 300, and setting the first convex line (not shown in the figure) can also increase the friction between the hands of the medical staff and the breaking part 302, thereby making it more convenient for the medical staff The breaking part 302 is opened or closed.
- the cover portion 301 in this embodiment defines a cavity 3011 communicating with the bottom of the valve body 100 .
- the gas in the biopsy valve can enter the cavity 3011 through the connecting groove 102 and the opening in the middle of the valve body 100, and the pressure of the gas acts on the side wall of the cavity 3011, making the cover part 301 and the support member 200 more tightly, so that the cover The joint portion 301 is tightly pressed against the support member 200 and cannot be easily bounced off.
- the top of the cap 300 and the cavity 3011 are inwardly concave to form a groove 303 . It is convenient for the medical personnel to put their fingers on the groove 303 and press the cap 300 when closing the cap 300 , so that the cap 300 and the valve body 100 are tightly pressed together.
- connection groove 102 near the valve main body 100 is provided with a second engaging groove 105 that engages with the connecting seat 500 of the endoscope.
- connection groove 102 there is a gap between the connecting groove 102 and the connecting seat of the endoscope. Since there is a gap between the connection groove 102 and the connection seat 500 in this embodiment, the two do not pass through an interference fit, so it is more convenient for medical personnel to assemble and disassemble the biopsy valve, and it does not require too much effort. It went relatively smoothly.
- second convex lines may be provided outside the valve main body 100 . Increase friction and play anti-slip effect.
- a hard plastic support 200 is added between the cap 300 and the valve body 100.
- the hard plastic support 200 can be the cap 300 and the valve body.
- 100 provides a support point, because the hard plastic material support 200 provides rigid support for the soft material cap 300, the combination of soft and hard makes the entire biopsy valve remain stable and not deformed, so that the cap 300 will not pop open suddenly, and the airtightness is improved.
- the present application also designs the central opening of the valve main body 100 as a convex piece 103, which can be embedded in the connecting seat 500 of the existing endoscope. When the seat 500 is on, the protruding piece 103 is embedded in the connecting seat 500, and the first slot 104 is engaged with the connecting seat 500.
- the air pressure gradually increases and rebounds, the air pressure can be respectively pressed to both sides of the protruding piece 103, so that the protruding piece 103 and the connecting seat 500 are more tightly sealed, which improves the sealing performance, thereby solving the problem that the sealing between the existing valve body and the endoscope metal seat, and between the cap and the valve body is only achieved through interference fit, so the sealing effect is not good. It is good, and it is easy to pop the cover during the suction process, which will cause the tissue and body fluid to splash out, seriously affecting the technical problems of the health and safety of medical staff.
- connection should be understood in a broad sense, for example, it can be a fixed connection or a Replaceable connection, or integral connection, can be mechanical connection or electrical connection, direct connection or indirect connection through an intermediary, or internal communication between two components.
- connection should be understood in a broad sense, for example, it can be a fixed connection or a Replaceable connection, or integral connection, can be mechanical connection or electrical connection, direct connection or indirect connection through an intermediary, or internal communication between two components.
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Abstract
一种内窥镜活检阀，包括阀主体（100）、支撑件（200）、盖帽（300）和连接条（400）；连接条（400）的一端连接阀主体（100），另一端连接盖帽（300），支撑件（200）的材质为硬塑料；阀主体（100）的顶部设有与支撑件（200）相匹配的盖合槽（101），支撑件（200）设于盖合槽（101）内，当盖帽（300）盖合阀主体（100）的顶部时，盖帽（300）和支撑件（200）卡接；阀主体（100）的底部设有与内窥镜的连接座（500）相匹配的连接槽（102），阀主体（100）的顶部和底部连通，且阀主体（100）的中部开口向阀主体（100）的底部延伸形成凸件（103），凸件（103）与连接槽（102）之间形成第一卡槽（104），连接槽（102）套设在内窥镜的连接座（500）时，凸件（103）嵌入连接座（500）内，连接座（500）和第一卡槽（104）卡接，从而解决现有技术的密封效果不佳且在抽吸过程中容易出现弹盖，导致组织体液溅出，严重影响医护人员的健康安全的技术问题。
Description
相关申请的交叉参考
本申请要求于2021年09月27日提交中华人民共和国香港特别行政区知识产权署，申请号为32021039516.8，名称为“一种内窥镜活检阀”的香港专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请涉及医疗器械技术领域，尤其涉及一种内窥镜活检阀。
随着科技的发展，内窥镜成为现代医学中常用的检测器械，内窥镜是一种光学仪器，由冷光源镜头、纤维光导线、图象传输系统和屏幕显示系统等组成，用来直接观察人体器官内部腔体的组织。其中，活检阀是一种弹性密封器件，属于内窥镜的附件之一，阀体内部设有弧状单向阀，单向阀正中设有小孔，供活检钳等内窥镜手术器械通过。活检阀使用于内窥镜设备的活检管道的上开口。在活检及手术器械通过或抽出内窥镜活检管道时,利用阀门可以阻隔患者体液或药液沿内窥镜活检管路回流,防止溢出或逆喷，以控制医源性污染。
现有的活检阀均是软胶材质。在实际应用中，由于活检阀与抽吸阀连通，因此，在不需要使用活检阀时，需要将活检阀关闭好，即将盖帽盖合阀体，如图1所示，以防止人体组织液泄露，也避免了有其他东西通过活检阀进入人体内。然而，现有的活检阀存在两个问题，一个是为了实现密封性，将活检阀的底部与连接座过盈配合，如图2所示，虽然活检阀的底部与连接座过盈配合能达到密封性，但是同时也会衍生出活检阀与连接座过紧，导致安装和拆卸都需要比较用力，从而导致活检阀内的血水等污染物溅出，另一个也是为了实现密封性，将盖帽和阀体过盈配合，使得软胶材质的盖帽和软胶材质的阀体紧贴，从而实现密封，然而，由于盖帽和阀体都是软胶材质，在气压这个外部压力下，两者都容易变形，一旦变形，盖帽在气压的作用力下就容易弹开，从而导致污染液溅出。由此可见，现有活检阀的密封效果不佳且在抽吸过程中容易 出现弹盖，拆卸需要比较用力，导致组织体液溅出，严重影响医护人员的健康安全。
申请内容
本申请提供了一种内窥镜活检阀，用于解决现有的阀体与内窥镜金属座之间，以及盖帽与阀体之间仅仅通过过盈配合实现密封，因此，密封效果不佳且在抽吸过程中容易出现弹盖，导致组织体液溅出，严重影响医护人员的健康安全的技术问题。
本申请提供了一种内窥镜活检阀，包括阀主体、支撑件、盖帽和连接条；所述连接条的一端连接所述阀主体，另一端连接所述盖帽，所述支撑件的材质为硬塑料；所述阀主体的顶部设有与所述支撑件相匹配的盖合槽，所述支撑件设于所述盖合槽内，当所述盖帽盖合所述阀主体的顶部时，所述盖帽和所述支撑件卡接；所述阀主体的底部设有与内窥镜的连接座相匹配的连接槽，所述阀主体的顶部和底部连通，且所述阀主体的中部开口向所述阀主体的底部延伸形成凸件，所述凸件与所述连接槽之间形成第一卡槽，当所述连接槽套设在内窥镜的连接座时，所述凸件嵌入所述连接座内，所述连接座和所述第一卡槽卡接。
本申请在盖帽和阀主体盖合之间增设了硬塑料材质的支撑件，当盖帽盖合阀主体的顶部时，硬塑料材质的支撑件可为盖帽和阀主体提供支撑点，由于硬塑料材质的支撑件为软性材质的盖帽提供刚性支撑，软硬结合，使得整个活检阀能够保持稳定不变形，从而使得盖帽不会突然弹开，密封性较强，此外，本申请还将阀主体的中部开口设计成凸件，该凸件可以嵌入现有内窥镜的连接座中，当将阀主体套在内窥镜的连接座上时，凸件嵌入连接座内，第一卡槽和连接座卡接，当气压逐渐变大回弹时，气压可分别压向凸件的两侧，使得凸件和连接座更加紧密，提高了密封性，从而解决了现有的阀体与内窥镜金属座之间，以及盖帽与阀体之间仅仅通过过盈配合实现密封，因此，密封效果不佳且在抽吸过程中容易出现弹盖，导致组织体液溅出，严重影响医护人员的健康安全的技术问题。
可选地，所述支撑件包括上贴合部和下卡接部，所述上贴合部的直径小于所述下卡接部的直径，所述盖帽包括盖合部；所述盖帽盖合所述阀主体时，所述盖合部和所述下卡接部卡接。由于上贴合部的直径小于下卡接部，则盖合部盖合的密封性较大，且由于盖合部与下卡接部卡接，也防止了盖帽在气压作用下轻易弹开。
可选地，所述盖合部的外侧壁和所述上贴合部的内侧壁过盈配合，且所述上贴合部的内侧壁分为上侧壁和下侧壁，所述上侧壁和所述下侧壁呈钝角。由于上侧壁和下侧壁呈钝角，可以使得盖合部的外侧壁不容易脱离支撑件，且也提高了两者间的密封性。
可选地，所述盖合部和所述下卡接部卡接位置处设有空隙。不仅不影响活检阀整体的密封性，还减少了两者的接触面积，也减小了打开或盖合盖帽时的阻力，从而方便了医护人员的操作。
可选地，所述盖帽还包括掰开部，所述掰开部与所述连接条正对设置，且所述掰开部设有若干条第一凸条纹路。设置掰开部可以方便医护人员打开和关闭盖帽，设置第一凸条纹路还能增大医护人员的手部与掰开部的摩擦力，从而更加方便医护人员打开或者关闭掰开部。
可选地，所述盖合部开设有和所述阀主体的底部连通的空腔。活检阀内的气体可通过连接槽和阀主体的中部开口进入到空腔内，且气体的压力作用在空腔侧壁，使得盖合部和支撑件更加紧密，使得盖合部紧紧压向支撑件，不轻易弹开。
可选地，所述盖帽的顶部和所述空腔相对处向内凹形成凹槽。方便医护人员盖合盖帽时，将手指放在凹槽，按压盖帽，使得盖帽和阀主体紧密压合。
可选地，所述连接槽靠近所述阀主体的底部处设有和内窥镜的连接座卡接的第二卡槽。
可选地，所述连接槽和内窥镜的连接座之间设有空隙。方便医护人员组装和拆卸活检阀，且不需要太费劲，操作起来比较顺利。
可选地，所述阀主体的外部设有若干条第二凸条纹路。增大摩擦力，起到防滑效果。
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1为本申请提供的现有活检阀和内窥镜金属座的结构示意图；
图2为本申请提供的现有活检阀和金属座的组装结构示意图；
图3为本申请提供的一种内窥镜活检阀的整体结构示意图；
图4为本申请提供的一种内窥镜活检阀的分解结构示意图；
图5为本申请提供的一种内窥镜活检阀的关闭状态下的剖面结构示意图；
图6为本申请提供的一种内窥镜活检阀的打开状态下的剖面结构示意图；
图7为本申请提供的一种内窥镜活检阀的分解剖面结构示意图；
图8为本申请提供的一种内窥镜活检阀和内窥镜连接座的剖面连接结构示意图；
图9为本申请提供的一种内窥镜活检阀安装在连接座上的气压流向示意图。
本申请实施例提供了一种内窥镜活检阀，用于解决现有的阀体与内窥镜金属座之间，以及盖帽与阀体之间仅仅通过过盈配合实现密封，因此，密封效果不佳且在抽吸过程中容易出现弹盖，导致组织体液溅出，严重影响医护人员的健康安全的技术问题。
为使得本申请的发明目的、特征、优点能够更加的明显和易懂，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，下面所描述的实施例仅仅是本申请一部分实施例，而非全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
请参阅图1至图9，本申请实施例提供了一种内窥镜活检阀，包括阀主体100、支撑件200、盖帽300和连接条400；连接条400的一端连接阀主体100，另一端连接盖帽300，支撑件200的材质为硬塑料；阀主体100的顶部设有与支撑件200相匹配的盖合槽101，支撑件200设于盖合槽101内，当盖帽300盖合阀主体100的顶部时，盖帽300和支撑件200卡接；阀主体100的底部设有与内窥镜的连接座500相匹配的连接槽102，阀主体100的顶部和底部连通，且阀主体100的中部开口向阀主体100的底部延伸形成凸件103，凸件103与连接槽102之间形成第一卡槽104，当连接槽102套设在内窥镜的连接座500时，凸件103嵌入连接座500内，连接座500和第一卡槽104卡接。
需要说明的是，本实施例中的阀主体100、盖帽300和连接条400的材质均与现有活检阀的材质一样，即属于软胶材质。
在阀主体100的顶部设置支撑件200，由于支撑件200的材质是硬 塑料，当盖帽300盖合在阀主体100的顶部时，盖帽300和支撑件200卡接，由于软胶材质的盖帽300和硬塑料的支撑件200结合，在气压往外挤时，一个是软性，一个是刚性，两者结合不容易变形，因此，既达到密封的效果，也避免出现盖帽300突然弹起，使得活检阀内的组织液弹出。此外，当阀主体100和内窥镜的连接座500连接时，凸件103嵌入连接座500内，凸件103与连接座500之间过盈配合，实现密封的效果，当气压往外挤时，压力压向凸件103的侧边，以将凸件103和连接座500压紧，从而大大地提高了密封性。
进一步地，本实施例中的支撑件200包括上贴合部201和下卡接部202，上贴合部201的直径小于下卡接部202的直径，盖帽300包括盖合部301；盖帽300盖合阀主体100时，盖合部301和下卡接部202卡接。由于上贴合部201的直径小于下卡接部202，则盖合部301盖合的密封性较大，且由于盖合部301与下卡接部202卡接，也防止了盖帽300在气压作用下轻易弹开。
进一步地，盖合部301的外侧壁和上贴合部201的内侧壁过盈配合，且上贴合部201的内侧壁分为上侧壁2011和下侧壁2012，上侧壁2011和下侧壁2012呈钝角。需要说明的是，由于上侧壁2011和下侧壁2012呈钝角，可以使得盖合部301的外侧壁不容易脱离支撑件200，且也提高了两者间的密封性。
进一步地，本实施例中的盖合部301和下卡接部202卡接位置处设有空隙。需要说明的是，在盖合部301和下卡接部202卡接位置处设置空隙，不仅不影响活检阀整体的密封性，还减少了两者的接触面积，也减小了打开或盖合盖帽300时的阻力，从而方便了医护人员的操作。
进一步地，盖帽300还包括掰开部302，掰开部302与连接条400正对设置，且掰开部302设有若干条第一凸条纹路(图中未示)。设置掰开部302可以方便医护人员打开和关闭盖帽300，设置第一凸条纹路(图中未示)还能增大医护人员的手部与掰开部302的摩擦力，从而更加方便医护人员打开或者关闭掰开部302。
进一步地，本实施例中的盖合部301开设有和阀主体100的底部连通的空腔3011。活检阀内的气体可通过连接槽102和阀主体100的中部开口进入到空腔3011内，且气体的压力作用在空腔3011侧壁，使得盖合部301和支撑件200更加紧密，使得盖合部301紧紧压向支撑件200，不轻易弹开。
进一步地，本实施例中盖帽300的顶部和空腔3011相对处向内凹形成凹槽303。方便医护人员盖合盖帽300时，将手指放在凹槽303， 按压盖帽300，使得盖帽300和阀主体100紧密压合。
进一步地，连接槽102靠近阀主体100的底部处设有和内窥镜的连接座500卡接的第二卡槽105。
进一步地，连接槽102和内窥镜的连接座之间设有空隙。由于本实施例中的连接槽102和连接座500之间的设有空隙，因此，两者并不是通过过盈配合，因此，更加方便医护人员组装和拆卸活检阀，且不需要太费劲，操作起来比较顺利。
进一步地，为了方便医护人员拆卸和安装活检阀，可以在阀主体100的外部设置若干条第二凸条纹路(图中未示)。增大摩擦力，起到防滑效果。
本实施例在盖帽300和阀主体100盖合之间增设了硬塑料材质的支撑件200，当盖帽300盖合阀主体100的顶部时，硬塑料材质的支撑件200可为盖帽300和阀主体100提供支撑点，由于硬塑料材质的支撑件200为软性材质的盖帽300提供刚性支撑，软硬结合，使得整个活检阀能够保持稳定不变形，从而使得盖帽300不会突然弹开，密封性较强，此外，本申请还将阀主体100的中部开口设计成凸件103，该凸件103可以嵌入现有内窥镜的连接座500中，当将阀主体100套在内窥镜的连接座500上时，凸件103嵌入连接座500内，第一卡槽104和连接座500卡接，当气压逐渐变大回弹时，气压可分别压向凸件103的两侧，使得凸件103和连接座500更加紧密，提高了密封性，从而解决了现有的阀体与内窥镜金属座之间，以及盖帽与阀体之间仅仅通过过盈配合实现密封，因此，密封效果不佳且在抽吸过程中容易出现弹盖，导致组织体液溅出，严重影响医护人员的健康安全的技术问题。
在本申请实施例的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本申请实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可更换连接，或一体地连接，可以是机械连接，也可以是电连接，可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体 情况理解上述术语在本申请实施例中的具体含义。
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。
Claims (10)
- 一种内窥镜活检阀，其特征在于，包括阀主体、支撑件、盖帽和连接条；所述连接条的一端连接所述阀主体，另一端连接所述盖帽，所述支撑件的材质为硬塑料；所述阀主体的顶部设有与所述支撑件相匹配的盖合槽，所述支撑件设于所述盖合槽内，当所述盖帽盖合所述阀主体的顶部时，所述盖帽和所述支撑件卡接；所述阀主体的底部设有与内窥镜的连接座相匹配的连接槽，所述阀主体的顶部和底部连通，且所述阀主体的中部开口向所述阀主体的底部延伸形成凸件，所述凸件与所述连接槽之间形成第一卡槽，当所述连接槽套设在内窥镜的连接座时，所述凸件嵌入所述连接座内，所述连接座和所述第一卡槽卡接。
- 根据权利要求1所述的内窥镜活检阀，其特征在于，所述支撑件包括上贴合部和下卡接部，所述上贴合部的直径小于所述下卡接部的直径，所述盖帽包括盖合部；所述盖帽盖合所述阀主体时，所述盖合部和所述下卡接部卡接。
- 根据权利要求2所述的内窥镜活检阀，其特征在于，所述盖合部的外侧壁和所述上贴合部的内侧壁过盈配合，且所述上贴合部的内侧壁分为上侧壁和下侧壁，所述上侧壁和所述下侧壁呈钝角。
- 根据权利要求2所述的内窥镜活检阀，其特征在于，所述盖合部和所述下卡接部卡接位置处设有空隙。
- 根据权利要求2所述的内窥镜活检阀，其特征在于，所述盖帽还包括掰开部，所述掰开部与所述连接条正对设置，且所述掰开部设有若干条第一凸条纹路。
- 根据权利要求2所述的内窥镜活检阀，其特征在于，所述盖合部开设有和所述阀主体的底部连通的空腔。
- 根据权利要求6所述的内窥镜活检阀，其特征在于，所述盖帽 的顶部和所述空腔相对处向内凹形成凹槽。
- 根据权利要求1所述的内窥镜活检阀，其特征在于，所述连接槽靠近所述阀主体的底部处设有和内窥镜的连接座卡接的第二卡槽。
- 根据权利要求8所述的内窥镜活检阀，其特征在于，所述连接槽和内窥镜的连接座之间设有空隙。
- 根据权利要求1所述的内窥镜活检阀，其特征在于，所述阀主体的外部设有若干条第二凸条纹路。
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