CN109010954B - A kind of negative pressure drainage and debridement device for diabetic foot - Google Patents

A kind of negative pressure drainage and debridement device for diabetic foot Download PDF

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CN109010954B
CN109010954B CN201811001101.5A CN201811001101A CN109010954B CN 109010954 B CN109010954 B CN 109010954B CN 201811001101 A CN201811001101 A CN 201811001101A CN 109010954 B CN109010954 B CN 109010954B
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pipe
negative pressure
fixed
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branch pipe
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CN109010954A (en
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刘光旺
马超
曲新华
刘珅
高娟
戴维享
赵猛
王栋
王兆红
冯杰
孟庆芳
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Xuzhou Central Hospital
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    • A61M1/0001
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/84Drainage tubes; Aspiration tips
    • A61M1/85Drainage tubes; Aspiration tips with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M3/00Medical syringes, e.g. enemata; Irrigators
    • A61M3/02Enemata; Irrigators
    • A61M3/0279Cannula; Nozzles; Tips; their connection means

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Abstract

A negative pressure drainage debridement device for diabetic feet comprises an anti-blocking device, a negative pressure assembly, a drainage bottle and a suction assembly, wherein the anti-blocking device comprises a shell, a liquid inlet pipe, a liquid outlet pipe, a first branch pipe, a second branch pipe and a crushing assembly; the crushing assembly comprises a crushing barrel, a liquid inlet pipe, a liquid outlet pipe, a first branch pipe, a filter screen, a conical ring, a connecting pipe, a bearing, a rotating shaft, a motor and a motor, wherein the liquid inlet pipe extends into the shell from one side of the shell and is communicated with the first branch pipe; the first screw thread, the second screw thread, the cone and the spiral material feeding piece are sequentially fixed between the feed inlet and the discharge outlet of the rotating shaft from the feed end of the crushing barrel. The device can effectively prevent the pipeline from being blocked, and the work is more stable.

Description

一种糖尿病足负压引流清创装置A kind of negative pressure drainage and debridement device for diabetic foot

技术领域technical field

本发明涉及一种清创装置,具体涉及一种用于对糖尿病足创口进行的负压引流清创装置。The invention relates to a debridement device, in particular to a negative pressure drainage debridement device for diabetic foot wounds.

背景技术Background technique

糖尿病足是指糖尿病患者足部由于神经病变使下肢保护功能减退,大血管和微血管病变使动脉灌注不足致微循环障碍而发生溃疡和坏疽的疾病状态。糖尿病足是糖尿病一种严重的并发症,是糖尿病患者致残,甚至致死的重要原因之一,给患者造成巨大的痛苦。Diabetic foot refers to a disease state in which ulcers and gangrene occur in the feet of diabetic patients due to neuropathy that reduces the protection function of the lower extremities, and macrovascular and microvascular lesions that cause insufficient arterial perfusion and lead to microcirculation disorders. Diabetic foot is a serious complication of diabetes, and it is one of the important causes of disability and even death of diabetic patients, causing great suffering to patients.

糖尿病足病症有干性和湿性两种,但都会有细菌感染、脓液、局部坏死等症状。在局部治疗手段中,清创术使用较多。There are two types of diabetic foot disease: dry and wet, but there will be symptoms such as bacterial infection, pus, and local necrosis. Among the local treatment methods, debridement is used more.

为了彻底,通常会使用辅助设备,对脓液进行引流,并对创口进行冲洗。For completeness, assistive devices are usually used to drain the pus and irrigate the wound.

但是脓液粘度大,同时会混有坏死组织,在抽吸脓液时很容易堵塞管道导致设备运转故障。However, the pus is highly viscous and mixed with necrotic tissue. When the pus is sucked, it is easy to block the tube and cause the equipment to malfunction.

现有技术,中国专利(CN201611231781.0负压引流装置),公开了如下技术方案,包括真空泵,真空泵通过压力管连接一瓶体,瓶体为分体式结构,瓶体还连接有引流管,所述引流管还连接有与创口处形成密封负压环境的创口密封部,多个创口密封部可以配合使用,另在创口密封部与引流管之间设有一防堵装置,该防堵装置中设有两相对的轮体,轮体上设有叶片,轮体在软轴的作用下形成相对旋转,对通过液体形成搅拌打碎,使得大块组织或结块破碎,本发明主要用于引流伤口中的液体,可以起到防止堵塞和液体进入压力管。该设备中设置了将坏死的组织进行破碎的装置。虽然能够起到破碎组织防止管道堵塞的目的,但是,在实际运转中,引流液体通过轮体时,一方面会导致直接吸引脓液的管道内的引流压力下降,原因在于轮体工作要保证叶片与轮体内表面空隙非常小,且叶片相对旋转,不考虑叶片旋转对液体产生的反向的压力,仅考虑离心力时,液体向轮体内壁流动,阻碍液体向负压点移动,从而导致吸引压力下降,反而容易导致吸引点到轮体入口这一段容易堵塞,另一方面组织和脓液在打碎过程中,脓液进入轮体后被叶片打散过程中在叶片间隔件的分布是随机的,使负压的传导路径不稳定,这就会导致负压在轮体内会不稳定,使得实际负压引流过程中,吸引点到轮体入口之间的管道内压力不稳定,忽高忽低,这样也容易导致坏死组织的淤积。The prior art, the Chinese patent (CN201611231781.0 negative pressure drainage device), discloses the following technical solutions, including a vacuum pump, the vacuum pump is connected to a bottle body through a pressure tube, the bottle body is a split structure, and the bottle body is also connected with a drainage tube, so the The drainage tube is also connected with a wound sealing portion that forms a sealed negative pressure environment with the wound, and multiple wound sealing portions can be used together. In addition, an anti-blocking device is provided between the wound sealing portion and the drainage tube. There are two opposite wheel bodies, the wheel bodies are provided with blades, the wheel bodies form relative rotation under the action of the flexible shaft, and the liquid is stirred and broken, so that large pieces of tissue or agglomerates are broken. The present invention is mainly used for drainage of wounds. The liquid in it can play a role in preventing clogging and liquid entering the pressure pipe. The device is equipped with a device for fragmenting necrotic tissue. Although it can break the tissue to prevent the blockage of the pipe, in actual operation, when the drainage liquid passes through the wheel, on the one hand, the drainage pressure in the pipe that directly attracts the pus will drop. The gap between the inner surface of the wheel and the inner surface of the wheel is very small, and the blades rotate relatively, regardless of the reverse pressure generated by the blade rotation on the liquid. When only the centrifugal force is considered, the liquid flows to the inner wall of the wheel, which prevents the liquid from moving to the negative pressure point, resulting in suction pressure. On the contrary, it is easy to cause the suction point to the entrance of the wheel body to be easily blocked. On the other hand, in the process of smashing the tissue and pus, the distribution of the pus in the blade spacer is random during the process of breaking up the pus after entering the wheel body and being scattered by the leaves. , making the conduction path of negative pressure unstable, which will cause the negative pressure to be unstable in the wheel body, so that during the actual negative pressure drainage process, the pressure in the pipeline between the suction point and the inlet of the wheel body is unstable, fluctuating high and low. , which also easily leads to the accumulation of necrotic tissue.

此外,轮体的结构太过复杂,仅仅用于破碎组织来说,造价过高,对于小型机构或是个人家用来说,并不合适。而且设备的负压抽吸泵,电机以及防堵装置还有抽吸瓶都是分开设置的,设备的搬运、使用以及保养都非常不便。In addition, the structure of the wheel body is too complicated, and the cost is too high to be used only for crushing tissues, and it is not suitable for small institutions or personal households. Moreover, the negative pressure suction pump, motor, anti-blocking device and suction bottle of the equipment are all set separately, which is very inconvenient to carry, use and maintain the equipment.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于,提供一种能够稳定的防止负压抽吸管道堵塞,且结构简洁,成本低的糖尿病足负压引流清创装置。The purpose of the present invention is to provide a negative pressure drainage and debridement device for diabetic foot, which can stably prevent the blockage of the negative pressure suction pipe, has a simple structure and is low in cost.

为了实现上述目的,本发明包括防堵装置、负压组件、引流瓶和吸引组件,其特征在于,In order to achieve the above objects, the present invention includes an anti-blocking device, a negative pressure assembly, a drainage bottle and a suction assembly, and is characterized in that:

所述防堵装置包括一个壳体,进液管、出液管、第一支管、第二支管和破碎组件;The anti-blocking device includes a casing, a liquid inlet pipe, a liquid outlet pipe, a first branch pipe, a second branch pipe and a crushing assembly;

所述进液管从壳体一侧伸入壳体内,与第一支管连通,进液管在与第一支管的连接处带有一个缩颈部,在第一支管与进液管连通处固定一个锥环,锥环的锥底外壁与第一支管内壁密封连接,锥顶指向远离进液管的一端,第一支管内还固定有一个过滤网,过滤网固定在锥环远离进液管的一侧,过滤网与锥环之间间隙不超过五毫米,第一支管远离进液管的一端与第二支管连通;The liquid inlet pipe extends into the shell from one side of the casing and communicates with the first branch pipe. A cone ring, the outer wall of the cone bottom of the cone ring is sealed with the inner wall of the first branch pipe, the top of the cone points to the end away from the liquid inlet pipe, and a filter screen is also fixed in the first branch pipe, and the filter screen is fixed on the cone ring away from the liquid inlet pipe. On one side, the gap between the filter screen and the cone ring is no more than 5 mm, and the end of the first branch pipe away from the liquid inlet pipe is communicated with the second branch pipe;

第一支管与破碎组件的竖直设置的连通管连通,连通处位于过滤网和锥环固定端之间下侧管壁,连通管底端与破碎筒的进料端连通,破碎筒内通过轴承定位一根转轴,转轴由电机传动,转轴与破碎筒同轴;转轴从破碎筒的进料端的进料口至出料口之间依次固定第一螺纹、第二螺纹、锥体和螺旋送料片;The first branch pipe is communicated with the vertically arranged communicating pipe of the crushing assembly, the communicating point is located on the lower side pipe wall between the filter screen and the fixed end of the cone ring, the bottom end of the communicating pipe is communicated with the feeding end of the crushing cylinder, and the crushing cylinder passes through the bearing Position a rotating shaft, the rotating shaft is driven by a motor, and the rotating shaft is coaxial with the crushing cylinder; the rotating shaft sequentially fixes the first thread, the second thread, the cone and the screw feeding piece from the feed port at the feed end of the crushing cylinder to the discharge port ;

第一螺纹和第二螺纹位于破碎筒的直筒部内,直筒部水平设置或出料端倾斜向下设置,第一螺纹的螺距不大于八毫米,第二螺纹的螺距是第一螺纹的螺距的1/3-1/2;The first thread and the second thread are located in the straight cylinder part of the crushing cylinder, the straight cylinder part is set horizontally or the discharge end is inclined downward, the pitch of the first thread is not more than 8 mm, and the pitch of the second thread is 1 of the pitch of the first thread. /3-1/2;

直筒部的出料端与一个锥形筒连通,锥形筒、转轴和椎体同轴,椎体的锥顶和锥底与锥形筒的锥顶和锥底轴向位置对应,椎体外表面与锥形筒内表面之间间距不大于三毫米;锥形筒的出料端与第二直筒连通,所述螺旋送料片位于第二直筒内,第二直筒与第二支管连通;所述出液管与第二支管的底端连通;The discharge end of the straight cylinder part is communicated with a conical cylinder. The conical cylinder, the rotating shaft and the vertebral body are coaxial. The distance between the surface and the inner surface of the conical cylinder is not more than three millimeters; the discharge end of the conical cylinder is communicated with the second straight cylinder, the screw feeding sheet is located in the second straight cylinder, and the second straight cylinder is communicated with the second branch pipe; the The liquid outlet pipe is communicated with the bottom end of the second branch pipe;

负压组件包括第二壳体,负压泵固定在第二壳体内,电源也固定在第二壳体内,负压泵通过负压管与引流瓶连通,所述出液管通过引流管与引流瓶连通;The negative pressure assembly includes a second casing, the negative pressure pump is fixed in the second casing, the power supply is also fixed in the second casing, the negative pressure pump is communicated with the drainage bottle through the negative pressure pipe, and the liquid outlet pipe is connected to the drainage through the drainage pipe. bottle connection;

所述引流瓶为锥形瓶,瓶身上固定一个导引管,导引管位于引流瓶内,连通瓶身内外,导引管倾斜向下指向瓶底;The drainage bottle is a conical bottle, a guide tube is fixed on the bottle body, the guide tube is located in the drainage bottle, communicates with the inside and outside of the bottle body, and the guide tube slopes downward and points to the bottom of the bottle;

瓶盖与瓶身螺纹或开口密封连接,瓶盖上部包括一个锥形管,锥形管的锥顶与引流管连通。The bottle cap is tightly connected with the thread or opening of the bottle body, the upper part of the bottle cap includes a conical tube, and the conical top of the conical tube is communicated with the drainage tube.

所述吸引组件包括主管,主管的进液口外周面与衬膜密封连接,衬膜的外周底面涂覆粘结剂。The suction component includes a main pipe, the outer peripheral surface of the liquid inlet of the main pipe is sealedly connected with the lining film, and the outer peripheral bottom surface of the lining film is coated with adhesive.

进一步的,在主管上设置一个球形管,将主管分成两个部分,球形管内固定一个空心的倒锥形的导流锥,导流锥的锥底开口,开口处固定压电陶瓷片,导流锥与主管同轴;Further, a spherical tube is set on the main tube, and the main tube is divided into two parts. A hollow inverted conical guide cone is fixed in the spherical tube, and the cone bottom of the guide cone is opened, and the piezoelectric ceramic sheet is fixed at the opening, and the guide The cone is coaxial with the main pipe;

压电陶瓷片与换能器电连接,使压电陶瓷片向主管出液端发送超声波。The piezoelectric ceramic sheet is electrically connected with the transducer, so that the piezoelectric ceramic sheet sends ultrasonic waves to the liquid outlet end of the main pipe.

还包括一个冲洗管,冲洗管的出液口位于衬膜的下侧,用于向创口内喷冲洗液和/或药物;冲洗管通过固定件与主管之间进行定位。It also includes an irrigation pipe, the liquid outlet of the irrigation pipe is located on the lower side of the lining film, and is used for spraying irrigation liquid and/or medicine into the wound; the irrigation pipe is positioned between the fixing piece and the main pipe.

进一步的,在衬膜的下侧密封固定一个固定环,固定环的底面密封固定透析膜,主管的进液口位于透析膜与衬膜之间的空间内。Further, a fixing ring is sealed and fixed on the lower side of the lining membrane, the bottom surface of the fixing ring is sealed and fixed to the dialysis membrane, and the liquid inlet of the main pipe is located in the space between the dialysis membrane and the lining membrane.

进一步的,固定环为空心结构,其至少底面为软质面,底面上固定环形永磁体,在衬膜上侧通过固定装置在与永磁体对应位置固定电磁线圈,电磁线圈与交流电源电连接。Further, the fixing ring is a hollow structure, at least the bottom surface is a soft surface, a ring-shaped permanent magnet is fixed on the bottom surface, an electromagnetic coil is fixed on the upper side of the lining film by a fixing device at a position corresponding to the permanent magnet, and the electromagnetic coil is electrically connected to the AC power source.

优选的,透析膜的面积大于固定环底面外圆周的面积,负压泵为正负压泵,能够正负压交替工作Preferably, the area of the dialysis membrane is larger than the area of the outer circumference of the bottom surface of the fixed ring, and the negative pressure pump is a positive and negative pressure pump, which can work alternately with positive and negative pressures

优选的,防堵装置、负压组件和引流瓶,固定在一起。Preferably, the anti-blocking device, the negative pressure assembly and the drainage bottle are fixed together.

进一步的,在椎体临近直筒的一侧固定一个凸出部,突出部向直筒的进料端凸出。Further, a protruding part is fixed on the side of the vertebral body adjacent to the straight cylinder, and the protruding part protrudes toward the feeding end of the straight cylinder.

进一步的,过滤网的主体为一个两端开口的球面环,开口大的一端与第一支管内壁密封连接,开口小的一端指向第一支管出液端,还包括一个球面网,球面网开口端与主体小开口端密封连接,球面网向主体大开口端凸出。Further, the main body of the filter screen is a spherical ring with two ends open, the end with the large opening is sealed with the inner wall of the first branch pipe, the end with the small opening points to the liquid outlet end of the first branch pipe, and also includes a spherical net with the open end of the spherical net. It is sealingly connected with the small open end of the main body, and the spherical mesh protrudes toward the large open end of the main body.

优选的,球面网大于半球面,其球面要在主体的容置空间内。Preferably, the spherical net is larger than the hemispherical surface, and its spherical surface should be within the accommodating space of the main body.

本发明的有益效果在于:The beneficial effects of the present invention are:

1、结构简洁,能够有效的防止管路堵塞,且保证管路内压力的稳定,整套装置工作更稳定。1. The structure is simple, which can effectively prevent the pipeline from being blocked, and ensure the stability of the pressure in the pipeline, and the whole device works more stably.

2、结构简洁,生产成本低,便于小型机构和家用。2. The structure is simple and the production cost is low, which is convenient for small institutions and households.

3、设备能够整体化装配,便于搬运使用和维护。3. The equipment can be assembled as a whole, which is convenient for handling, use and maintenance.

附图说明Description of drawings

图1是本发明示意图。Figure 1 is a schematic diagram of the present invention.

图2是防堵装置结构示意图。Figure 2 is a schematic diagram of the structure of the anti-blocking device.

图3是图2中局部放大图。FIG. 3 is a partial enlarged view of FIG. 2 .

图4是吸引组件示意图。Figure 4 is a schematic diagram of the suction assembly.

具体实施方式Detailed ways

下面结合附图对本发明做详细描述。The present invention will be described in detail below with reference to the accompanying drawings.

如图1至4所示,一种糖尿病足负压引流清创装置,包括防堵装置10、负压组件20、引流瓶30和吸引组件40。As shown in FIGS. 1 to 4 , a negative pressure drainage and debridement device for diabetic foot includes an anti-blocking device 10 , a negative pressure component 20 , a drainage bottle 30 and a suction component 40 .

所述防堵装置10包括一个壳体,进液管11、出液管18、第一支管13、第二支管17、破碎组件16;The anti-blocking device 10 includes a casing, a liquid inlet pipe 11, a liquid outlet pipe 18, a first branch pipe 13, a second branch pipe 17, and a crushing assembly 16;

如图2和3所示,所述进液管11从壳体一侧伸入壳体内,与第一支管13连通,进液管11和第一支管13最好是水平设置,进液管11在与第一支管13的连接处带有一个缩颈部12,缩颈部12的目的是为了提高流速,在第一支管13与进液管11连通处固定一个锥环14,锥环14的锥底外壁与第一支管13内壁密封连接,锥顶指向远离进液管的一端,第一支管13内还固定有一个过滤网15,过滤网15固定在锥环14远离进液管11的一侧,过滤网15与锥环14之间间隙不超过五毫米。第一支管13远离进液管11的一端与第二支管17连通。As shown in Figures 2 and 3, the liquid inlet pipe 11 extends into the casing from one side of the casing and communicates with the first branch pipe 13. The liquid inlet pipe 11 and the first branch pipe 13 are preferably arranged horizontally, and the liquid inlet pipe 11 A constricted portion 12 is provided at the connection with the first branch pipe 13. The purpose of the constricted portion 12 is to increase the flow rate. A cone ring 14 is fixed at the connection between the first branch pipe 13 and the liquid inlet pipe 11. The outer wall of the cone bottom is sealed with the inner wall of the first branch pipe 13, the top of the cone points to one end away from the liquid inlet pipe, and a filter screen 15 is also fixed in the first branch pipe 13, and the filter screen 15 is fixed on a part of the cone ring 14 away from the liquid inlet pipe 11. On the other hand, the gap between the filter screen 15 and the cone ring 14 is not more than five millimeters. One end of the first branch pipe 13 away from the liquid inlet pipe 11 is communicated with the second branch pipe 17 .

第一支管13与破碎组件16的竖直设置的连通管161连通,连通处位于过滤网15和锥环14固定端之间下侧管壁,连通管161底端与破碎筒的进料端连通。破碎筒内通过轴承定位一根转轴162,转轴162由电机169传动,转轴162与破碎筒同轴。转轴162从进料端的进料口至出料口之间依次固定第一螺纹163、第二螺纹164、锥体166和螺旋送料片168。The first branch pipe 13 is communicated with the vertically arranged communication pipe 161 of the crushing assembly 16, the communication point is located on the lower pipe wall between the filter screen 15 and the fixed end of the cone ring 14, and the bottom end of the communication pipe 161 is communicated with the feed end of the crushing cylinder . A rotating shaft 162 is positioned in the crushing cylinder through a bearing, the rotating shaft 162 is driven by a motor 169, and the rotating shaft 162 is coaxial with the crushing cylinder. The rotating shaft 162 fixes the first thread 163 , the second thread 164 , the cone 166 and the screw feeding piece 168 in sequence from the feed port at the feed end to the discharge port.

第一螺纹163和第二螺纹164位于破碎筒的直筒部内,直筒部水平设置或出料端倾斜向下设置,第一螺纹163的螺距不大于八毫米,第一螺纹163的作用主要是承接和传送从过滤网15过滤下来的坏死组织和粘附在坏死组织上的脓液。第二螺纹164的螺距是第一螺纹163的螺距的1/3-1/2。第二螺纹163的作用是对组织进行挤压破碎,同时将承接的物料集中在一起,形成连续物料,减少空隙和含气量,从而有利于负压抽吸的连续性,保证液流稳定。The first thread 163 and the second thread 164 are located in the straight cylinder part of the crushing cylinder. The straight cylinder part is set horizontally or the discharge end is inclined downward. The pitch of the first thread 163 is not more than 8 mm. The necrotic tissue filtered from the filter mesh 15 and the pus adhering to the necrotic tissue are delivered. The pitch of the second thread 164 is 1/3-1/2 of the pitch of the first thread 163 . The function of the second thread 163 is to squeeze and crush the tissue, and at the same time gather the received materials together to form a continuous material, reduce the gap and air content, which is conducive to the continuity of negative pressure suction and ensures the stability of the liquid flow.

直筒的出料端与一个锥形筒165连通,锥形筒165、转轴162和椎体166同轴,椎体166的锥顶和锥底与锥形筒165的锥顶和锥底轴向位置对应,椎体166外表面与锥形筒165内表面之间最大间距不大于三毫米。为了让物料能够更稳定的进入椎体166与锥形筒165之间的空隙,在椎体166临近直筒的一侧固定一个凸出部,凸出部向直筒的进料端凸出。The discharge end of the straight cylinder is communicated with a conical cylinder 165. The conical cylinder 165, the rotating shaft 162 and the vertebral body 166 are coaxial. Correspondingly, the maximum distance between the outer surface of the vertebral body 166 and the inner surface of the conical cylinder 165 is not more than three millimeters. In order to allow the material to enter the space between the vertebral body 166 and the conical cylinder 165 more stably, a protruding part is fixed on the side of the vertebral body 166 adjacent to the straight cylinder, and the protruding part protrudes toward the feeding end of the straight cylinder.

锥形筒165的出料端与第二直筒167连通,所述螺旋送料片168位于第二直筒167内,第二直筒167与第二支管17连通。所述出液管18与第二支管17的底端连通。The discharge end of the conical cylinder 165 communicates with the second straight cylinder 167 , the spiral feeding piece 168 is located in the second straight cylinder 167 , and the second straight cylinder 167 communicates with the second branch pipe 17 . The liquid outlet pipe 18 communicates with the bottom end of the second branch pipe 17 .

所述过滤网15为了能够更好的过滤坏死组织,同时减少流入破碎组件16内的液体量,其结构需要做特殊设计。过滤网15的主体151为一个两端开口的球面环,开口大的一端与第一支管13内壁密封连接,开口小的一端指向第一支管13出液端。还包括一个球面网152,球面网152开口端与主体151小开口端密封连接,球面网152向主体151大开口端凸出。In order to better filter the necrotic tissue and reduce the amount of liquid flowing into the crushing component 16, the structure of the filter screen 15 needs to be specially designed. The main body 151 of the filter screen 15 is a spherical ring with two ends open. It also includes a spherical net 152 , the open end of the spherical net 152 is sealedly connected with the small open end of the main body 151 , and the spherical net 152 protrudes toward the large open end of the main body 151 .

球面网152的作用是防止组织在过滤网上堆积,造成堵塞。球面网最好是大于半球面,但是其球面要在主体151的容置空间内,不能凸出主体151大开口端外。The function of the spherical mesh 152 is to prevent the accumulation of tissue on the filter mesh and cause clogging. The spherical net is preferably larger than the hemispherical surface, but its spherical surface should be within the accommodating space of the main body 151 and cannot protrude out of the large open end of the main body 151 .

负压组件20也包括第二壳体,负压泵21固定在第二壳体内,同时电源22也固定在第二壳体内。负压泵21通过负压管23与引流瓶30连通。所述出液管18通过引流管19与引流瓶30连通。The negative pressure assembly 20 also includes a second housing, the negative pressure pump 21 is fixed in the second housing, and the power source 22 is also fixed in the second housing. The negative pressure pump 21 communicates with the drainage bottle 30 through the negative pressure pipe 23 . The liquid outlet pipe 18 communicates with the drainage bottle 30 through the drainage pipe 19 .

所述引流瓶30为锥形瓶,瓶身上固定一个导引管31,导引管31位于引流瓶30内,连通瓶身内外,导引管31倾斜向下指向瓶底。The drainage bottle 30 is a conical bottle, and a guide tube 31 is fixed on the bottle body. The guide tube 31 is located in the drainage bottle 30 and communicates with the inside and outside of the bottle body.

瓶盖32与瓶身螺纹或开口密封连接,瓶盖32上部包括一个锥形管,锥形管的锥顶与引流管19连通。The bottle cap 32 is tightly connected with the bottle body thread or opening, the upper part of the bottle cap 32 includes a conical tube, and the conical top of the conical tube communicates with the drainage tube 19 .

所述吸引组件40包括主管41,主管41的进液口外周面与衬膜46密封连接,衬膜46的外周底面固定压敏胶或其它胶黏剂,用于在创口周围形成密封空间。主管41最好是在进液口处通过一个密封胶圈与衬膜46连接,使主管41能够相对衬膜做轴向运动,以方便手动操作。The suction assembly 40 includes a main pipe 41 , the outer peripheral surface of the liquid inlet of the main pipe 41 is sealedly connected with a lining film 46 , and a pressure sensitive adhesive or other adhesive is fixed on the outer peripheral bottom surface of the lining film 46 to form a sealed space around the wound. The main pipe 41 is preferably connected to the lining film 46 through a sealing rubber ring at the liquid inlet, so that the main pipe 41 can move axially relative to the lining film to facilitate manual operation.

管道的堵塞,主要原因是坏死组织和脓液粘结管壁导致的。关键在于坏死的组织和粘稠的脓液粘结在了一起。脓液粘结管壁,带着坏死组织形成堵塞框架,逐渐堵塞管道。因此,为了进一步避免管道堵塞,在主管41上设置一个球形管42,将主管41分成两个部分,球形管42内固定一个空心的倒锥形的导流锥43,导流锥43的锥底开口,开口处固定压电陶瓷片44,导流锥43与主管41同轴。压电陶瓷片44与换能器45电连接,使压电陶瓷片向主管41出液端发送超声波。超声波一方面带动液体高频振动,使坏死组织和脓液粘结力下降,降低管道堵塞几率。另一方面超声波会在液体内造成空化效应,形成大量气泡,却脓液粘度大,能够将气泡保持较长的时间,气泡一方面能够进一步降低坏死组织与粘液粘结强度,坏死组织和粘液尽可能分离,另一方面粘液与管道也更难粘结,大幅降低粘液粘结管壁的几率。如此,能够防止从主管41到防堵装置10之间的管路堵塞。现有技术,仅采用单一的破碎装置,很难保证创口到破碎装置之间的管道不堵塞。加了超声波发生的组件能够很好的防止这个情况的发生。当然,压电陶瓷片44可以有多个,导流锥43也不是必须的,压电陶瓷片44可以同时向主管的进液口和出液口发送超声波。或者是导流锥43可以通过调整杆来调整方向,使压电陶瓷片可以向主管的进液口或出液口发送超声波。Blockage of the duct is mainly caused by necrotic tissue and pus sticking to the duct wall. The point is that the dead tissue and sticky pus stick together. The pus sticks to the wall of the tube and forms a blocking frame with necrotic tissue, gradually blocking the tube. Therefore, in order to further avoid pipe blockage, a spherical pipe 42 is set on the main pipe 41, the main pipe 41 is divided into two parts, a hollow inverted conical guide cone 43 is fixed in the spherical pipe 42, and the cone bottom of the guide cone 43 is fixed. An opening, the piezoelectric ceramic sheet 44 is fixed at the opening, and the guide cone 43 is coaxial with the main pipe 41 . The piezoelectric ceramic sheet 44 is electrically connected to the transducer 45 , so that the piezoelectric ceramic sheet sends ultrasonic waves to the liquid outlet end of the main pipe 41 . On the one hand, ultrasound drives the liquid to vibrate at high frequency, which reduces the cohesion between necrotic tissue and pus, and reduces the probability of pipe blockage. On the other hand, ultrasound will cause a cavitation effect in the liquid, forming a large number of bubbles, but the viscosity of the pus is large and can keep the bubbles for a long time. Separating as much as possible, on the other hand, the mucus and the pipe are more difficult to bond, which greatly reduces the chance of the mucus sticking to the wall of the pipe. In this way, clogging of the pipeline from the main pipe 41 to the blocking prevention device 10 can be prevented. In the prior art, only a single crushing device is used, and it is difficult to ensure that the pipeline between the wound and the crushing device is not blocked. The components that add ultrasonic generation can prevent this from happening very well. Of course, there may be a plurality of piezoelectric ceramic sheets 44, and the guide cone 43 is not necessary, and the piezoelectric ceramic sheets 44 may simultaneously send ultrasonic waves to the liquid inlet and the liquid outlet of the main pipe. Or the direction of the guide cone 43 can be adjusted by adjusting the rod, so that the piezoelectric ceramic sheet can send ultrasonic waves to the liquid inlet or outlet of the main pipe.

创口的引流是清创的一个部分,对创口的冲洗多数时间也是必须的。设置一个冲洗管420,冲洗管420的出液口位于衬膜46的下侧,用于向创口内喷冲洗液和/或药物。冲洗管420通过固定件与主管41之间进行定位,但是最好的是冲洗管420需要能够相对于固定件转动。Drainage of the wound is a part of debridement, and irrigation of the wound is also necessary most of the time. An irrigation tube 420 is provided, and the liquid outlet of the irrigation tube 420 is located on the lower side of the lining film 46, and is used for spraying irrigation liquid and/or medicine into the wound. The flush tube 420 is positioned between the fixture and the main pipe 41, but preferably, the flush tube 420 needs to be able to rotate relative to the fixture.

有些时候,医生希望创口处仅仅有脓液有害物流出,而易于组织生长的生长因子留在创口内。这个时候在衬膜46的下侧密封固定一个固定环49,固定环49的底面密封固定透析膜430,主管41的进液口位于透析膜430与衬膜46之间的空间内。In some cases, doctors want only the harmful pus to flow out of the wound, while growth factors that facilitate tissue growth remain in the wound. At this time, a fixing ring 49 is sealed and fixed on the lower side of the lining membrane 46 , the bottom surface of the fixing ring 49 is sealed and fixed to the dialysis membrane 430 , and the liquid inlet of the main pipe 41 is located in the space between the dialysis membrane 430 and the lining membrane 46 .

为了加快透析的过程,需要在衬膜46与创口之间形成的液囊内加快液体的流动。将固定环49设置成空心结构,其至少底面为软质面,底面上固定环形永磁体410,在衬膜46上侧通过固定装置在与永磁体410对应位置固定电磁线圈48,电磁线圈48与交流电源电连接,交流电源最好能够调整频率。交流电会按频率变更电磁线圈的磁极,从而对永磁体410进行吸引和排斥,从而对衬膜46和创口之间的液体进行振荡,加快透析进程。In order to speed up the dialysis process, it is necessary to speed up the flow of fluid within the sac formed between the lining membrane 46 and the wound. The fixing ring 49 is set into a hollow structure, at least the bottom surface is a soft surface, the annular permanent magnet 410 is fixed on the bottom surface, and the electromagnetic coil 48 is fixed on the upper side of the lining film 46 by a fixing device at a position corresponding to the permanent magnet 410. The AC power supply is electrically connected, and the AC power supply preferably can adjust the frequency. The alternating current will change the magnetic pole of the electromagnetic coil according to the frequency, thereby attracting and repelling the permanent magnet 410, thereby oscillating the liquid between the lining membrane 46 and the wound, and speeding up the dialysis process.

当然,加快透析的过程,也可以不使用电磁铁和永磁体的配合,将透析膜430的面积大于固定环49底面外圆周的面积,将负压泵21替换成正负压泵,正负压交替工作,能够将透析膜交底凸向和凹向创口,加快液体流动,加速透析。透析的过程在专利(CN200480032101.1原位创口清洁装置)中有详细披露。Of course, to speed up the dialysis process, it is also possible not to use the cooperation of electromagnets and permanent magnets, make the area of the dialysis membrane 430 larger than the area of the outer circumference of the bottom surface of the fixed ring 49, replace the negative pressure pump 21 with a positive and negative pressure pump, and alternate positive and negative pressures Working, the dialysis membrane can be turned convex and concave to the wound to speed up the fluid flow and speed up the dialysis. The process of dialysis is disclosed in detail in the patent (CN200480032101.1 in situ wound cleaning device).

为了便于携带,搬运和使用,防堵装置10、负压组件20和引流瓶,可以固定在一起,引流瓶30固定在负压组件20或防堵装置10,负压组件20和防堵装置10的固定方式可以是上下也可以是左右固定。是整个设备集成在一起。In order to facilitate portability, handling and use, the anti-blocking device 10, the negative pressure assembly 20 and the drainage bottle can be fixed together, and the drainage bottle 30 is fixed on the negative pressure assembly 20 or the anti-blocking device 10, the negative pressure assembly 20 and the anti-blocking device 10. The fixing method can be up and down or left and right. is the whole device integrated together.

以上所述仅为本发明的优选实施方式,并不用于限制本发明,对于本领域技术人员来说,本发明可以有各种更改和变化。凡在本发明精神和原则内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A negative pressure drainage debridement device for diabetic feet, which comprises an anti-blocking device, a negative pressure component, a drainage bottle and a suction component and is characterized in that,
the anti-blocking device comprises a shell, a liquid inlet pipe, a liquid outlet pipe, a first branch pipe, a second branch pipe and a crushing assembly;
the liquid inlet pipe extends into the shell from one side of the shell and is communicated with the first branch pipe, a necking part is arranged at the joint of the liquid inlet pipe and the first branch pipe, a conical ring is fixed at the joint of the first branch pipe and the liquid inlet pipe, the outer wall of the conical bottom of the conical ring is hermetically connected with the inner wall of the first branch pipe, the conical top points to one end far away from the liquid inlet pipe, a filter screen is also fixed in the first branch pipe and is fixed at one side of the conical ring far away from the liquid inlet pipe, the gap between the filter screen and the conical ring is not more than five millimeters, and one end of the first branch pipe far away from the liquid inlet pipe is;
the first branch pipe is communicated with a vertically arranged communicating pipe of the crushing assembly, the communicating position is positioned on the lower side pipe wall between the filter screen and the fixed end of the conical ring, the bottom end of the communicating pipe is communicated with the feeding end of the crushing barrel, a rotating shaft is positioned in the crushing barrel through a bearing, the rotating shaft is driven by a motor, and the rotating shaft is coaxial with the crushing barrel; a first thread, a second thread, a cone and a spiral material feeding piece are sequentially fixed between the feed inlet and the discharge outlet of the feed end of the crushing cylinder by the rotating shaft;
the first thread and the second thread are positioned in a straight barrel part of the crushing barrel, the straight barrel part is horizontally arranged or the discharge end is obliquely and downwards arranged, the pitch of the first thread is not more than eight millimeters, and the pitch of the second thread is 1/3-1/2 of the pitch of the first thread;
the discharge end of the straight cylinder part is communicated with a conical cylinder, the rotating shaft and the cone are coaxial, the cone top and the cone bottom of the cone correspond to the axial positions of the cone top and the cone bottom of the conical cylinder, and the distance between the outer surface of the cone and the inner surface of the conical cylinder is not more than three millimeters; the discharge end of the conical barrel is communicated with a second straight barrel, the spiral material feeding piece is positioned in the second straight barrel, and the second straight barrel is communicated with a second branch pipe; the liquid outlet pipe is communicated with the bottom end of the second branch pipe;
the negative pressure assembly comprises a second shell, a negative pressure pump is fixed in the second shell, a power supply is also fixed in the second shell, the negative pressure pump is communicated with the drainage bottle through a negative pressure pipe, and the liquid outlet pipe is communicated with the drainage bottle through a drainage pipe;
the drainage bottle is a conical bottle, a guide pipe is fixed on the bottle body and positioned in the drainage bottle and communicated with the inside and the outside of the bottle body, and the guide pipe is obliquely and downwards directed to the bottle bottom;
the bottle cap is hermetically connected with the bottle body through threads or an opening, the upper part of the bottle cap comprises a conical pipe, and the conical top of the conical pipe is communicated with the drainage pipe;
the suction assembly comprises a main pipe, the peripheral surface of the liquid inlet of the main pipe is hermetically connected with a lining film, and the peripheral bottom surface of the lining film is coated with an adhesive.
2. The negative pressure drainage debridement device for the diabetic foot according to claim 1, wherein a spherical tube is arranged on the main tube to divide the main tube into two parts, a hollow inverted cone-shaped flow guide cone is fixed in the spherical tube, the bottom of the flow guide cone is provided with an opening, a piezoelectric ceramic plate is fixed at the opening, and the flow guide cone is coaxial with the main tube;
the piezoelectric ceramic piece is electrically connected with the transducer, so that the piezoelectric ceramic piece sends ultrasonic waves to the liquid outlet end of the main pipe.
3. The negative pressure drainage debridement device for diabetic feet according to claim 1, further comprising an irrigation tube, wherein a liquid outlet of the irrigation tube is positioned at the lower side of the lining film and is used for spraying irrigation liquid and/or medicines into the wound; the flushing pipe is positioned between the fixing piece and the main pipe.
4. The negative pressure drainage debridement device for diabetic feet according to claim 1, wherein a fixing ring is fixed on the lower side of the lining film in a sealing manner, the dialysis film is fixed on the bottom surface of the fixing ring in a sealing manner, and the liquid inlet of the main tube is positioned in the space between the dialysis film and the lining film.
5. The negative pressure drainage debridement device for diabetic feet according to claim 4, wherein the fixing ring is of a hollow structure, at least the bottom surface of the fixing ring is a soft surface, the annular permanent magnet is fixed on the bottom surface, the electromagnetic coil is fixed on the upper side of the lining film at a position corresponding to the permanent magnet through a fixing device, and the electromagnetic coil is electrically connected with an alternating current power supply.
6. The diabetic foot negative pressure drainage debridement device according to claim 5, wherein the area of the dialysis membrane is larger than the area of the outer circumference of the bottom surface of the fixing ring, and the negative pressure pump is a positive and negative pressure pump capable of alternately working under positive and negative pressures.
7. The diabetic foot negative pressure drainage debridement device according to any one of claims 1 to 6, wherein the anti-blocking device, the negative pressure assembly and the drainage bottle are fixed together.
8. The diabetic foot negative pressure drainage debridement device according to any one of claims 1 to 6, wherein a bulge is fixed on one side of the vertebral body adjacent to the straight cylinder, and the bulge protrudes towards the feeding end of the straight cylinder.
9. The negative pressure drainage debridement device for diabetic feet according to any one of claims 1 to 6, wherein the main body of the filter screen is a spherical ring with two open ends, the end with the larger opening is hermetically connected with the inner wall of the first branch pipe, the end with the smaller opening is directed to the liquid outlet end of the first branch pipe, and the device further comprises a spherical screen, the open end of the spherical screen is hermetically connected with the small open end of the main body, and the spherical screen is projected towards the large open end of the main body.
10. The negative pressure drainage debridement device for diabetic feet according to claim 9, wherein the spherical net is larger than a hemisphere, and the spherical surface of the spherical net is arranged in the accommodating space of the main body.
CN201811001101.5A 2018-08-30 2018-08-30 A kind of negative pressure drainage and debridement device for diabetic foot Expired - Fee Related CN109010954B (en)

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