技术领域technical field
本发明涉及医疗器械技术领域，具体是一种微创神经外科专用的多功能吸引器头。The invention relates to the technical field of medical instruments, in particular to a multifunctional aspirator head dedicated to minimally invasive neurosurgery.
背景技术Background technique
外科手术中的清除积血或积液、把持破裂血管的断端，临床急救中的吸痰，妇科手术的人工流产等，都离不开吸引器。吸引器是用于吸除手术中出血、渗出物、脓液、胸腔脏器中的内容物，使手术清楚，减少污染机会。吸引器的原理非常简单，就是通过一定方法制造其吸引头的负压状态，这样大气压就会将吸引头外的物质向吸引头挤压，从而完成“吸引”的效果。吸引器给手术提供了一个卫生清洁的手术环境，并给医生提供一个清晰的视野。特别是在神经外科中，吸引器头是必不可少手术器械。随着科技的发展，显微镜在神经外科各类手术中普遍使用，对专用显微神经外科吸引器头的要求不断提高，其不仅有吸引功能，同时还具有剥离，解剖神经，血管，病变组织的功能以及电凝，电切组织功能。The removal of accumulated blood or fluid in surgical operations, holding the broken end of a ruptured blood vessel, suctioning sputum in clinical first aid, and artificial abortion in gynecological operations are all inseparable from suction devices. The suction device is used to suck the contents of bleeding, exudate, pus, and chest viscera during the operation, so as to make the operation clear and reduce the chance of contamination. The principle of the aspirator is very simple, that is to create the negative pressure state of its suction head through a certain method, so that the atmospheric pressure will squeeze the material outside the suction head to the suction head, thus completing the "attraction" effect. The suction device provides a hygienic and clean operating environment for the operation and provides a clear view for the doctor. Especially in neurosurgery, suction tips are essential surgical instruments. With the development of science and technology, microscopes are widely used in various neurosurgery operations, and the requirements for special microneurosurgery suction heads are constantly increasing. It not only has the suction function, but also has the functions of stripping, dissecting nerves, blood vessels, and diseased tissues. Function as well as electrocoagulation, electric cutting tissue function.
但医生们从长期手术中发现了现有吸引器的一些弊端，例如现有的吸引器在使用过程中经常被一些小碎骨或血块等堵塞，致使不能吸引，使手术视野不清，给手术带来不便和困难，常常需反复拔掉吸引器，用通条等排出堵塞物后方能使用，影响了手术操作节奏，浪费了手术时间。同时显微神经外科手术常是吸引器配合双极电凝镊使用，而双极电凝头端常需要滴水防止电凝镊粘连，影响止血效果。另外手术过程中常需要在无菌手术区域测量颅骨骨窗，病变深度，病变大小等，这些问题长期困扰着手术医生，急需一种新的微创吸引器头来解决这些问题。However, doctors have discovered some disadvantages of the existing suction device from long-term operations. For example, the existing suction device is often blocked by some small bone fragments or blood clots during use, so that it cannot be suctioned, making the surgical field of view unclear, and causing serious problems for the operation. Inconvenience and difficulty are brought about, and the aspirator needs to be pulled out repeatedly, and the blockage can be used after being discharged with a cleaning rod, etc., which affects the operation rhythm and wastes operation time. At the same time, in microneurosurgery, the aspirator is often used in conjunction with bipolar coagulation forceps, and the tip of bipolar coagulation often needs to drip water to prevent the coagulation forceps from sticking and affect the hemostatic effect. In addition, during the operation, it is often necessary to measure the bone window of the skull, the depth of the lesion, the size of the lesion, etc. in the sterile operation area. These problems have plagued the surgeon for a long time, and a new minimally invasive aspirator head is urgently needed to solve these problems.
发明内容Contents of the invention
本发明的目的在于提供一种微创神经外科专用的多功能吸引器头，以解决上述背景技术中提出的问题。The purpose of the present invention is to provide a special multifunctional aspirator head for minimally invasive neurosurgery, so as to solve the problems raised in the above-mentioned background technology.
为实现上述目的，本发明提供如下技术方案：To achieve the above object, the present invention provides the following technical solutions:
一种微创神经外科专用的多功能吸引器头，包括吸引器头连接吸引管接头、注水接头和电凝线接头、吸引器头体部、吸引器头末端以及依次贯穿吸引器头连接吸引管接头、注水接头和电凝线接头、吸引器头体部、吸引器头末端的吸引器头通条，吸引器头连接吸引管接头固定安装在注水接头和电凝线接头上方，吸引器头体部一端连接吸引器头末端，吸引器头体部另一端固定连接注水接头和电凝线接头下方；注水接头和电凝线接头、吸引器头体部的内部开设有流水通道。A special multi-functional suction head for minimally invasive neurosurgery, including suction head connecting suction tube joint, water injection joint and electrocoagulation wire joint, suction head body, suction head end and connecting suction tube through the suction head in turn Joint, water injection joint and electrocoagulation line joint, suction head body, suction head cleaning strip at the end of the suction head, the suction pipe joint connected to the suction head is fixedly installed above the water injection joint and the electrocoagulation line joint, the suction head body One end of the suction head is connected to the end of the suction head, and the other end of the suction head body is fixedly connected to the bottom of the water injection joint and the electrocoagulation line joint; the interior of the water injection joint, the electrocoagulation line joint, and the suction head body is provided with a water channel.
作为本发明进一步的方案：流水通道的入口位于注水接头和电凝线接头的入水口。As a further solution of the present invention: the inlet of the water flow channel is located at the water inlet of the water injection joint and the electrocoagulation line joint.
作为本发明进一步的方案：吸引器头通条的管径略小于吸引器头末端管径。As a further solution of the present invention: the pipe diameter of the aspirator head cleaner is slightly smaller than the pipe diameter of the end of the aspirator head.
作为本发明进一步的方案：吸引器头连接吸引管接头为锥形。As a further solution of the present invention: the suction pipe joint connected to the suction head is tapered.
作为本发明进一步的方案：吸力控制孔采用长水滴形状。As a further solution of the present invention: the suction control hole is in the shape of a long water drop.
作为本发明进一步的方案：注水接头和电凝线接头上设有吸力控制孔。As a further solution of the present invention: the water injection joint and the electrocoagulation line joint are provided with suction control holes.
作为本发明进一步的方案：吸引器头体部上有刻度标记。As a further solution of the present invention: there are scale marks on the head and body of the aspirator.
作为本发明进一步的方案：吸引器头末端的上端开口处设有吸引器末端滴水口，且吸引器末端滴水口位于流水通道的出口。As a further solution of the present invention: the upper opening of the end of the aspirator head is provided with a water drip opening at the end of the aspirator, and the water drip opening at the end of the aspirator is located at the outlet of the water flow channel.
作为本发明进一步的方案：吸引器头末端的下部侧面设有吸引器头末端侧开孔。As a further solution of the present invention: the lower side of the end of the aspirator head is provided with an opening at the end of the aspirator head.
作为本发明进一步的方案：吸引器头末端管径略小于吸引器头体部管径，且二者连接处采用斜坡状过渡。As a further solution of the present invention: the diameter of the end of the suction head is slightly smaller than the diameter of the body of the suction head, and the connection between the two adopts a slope-like transition.
作为本发明进一步的方案：除吸引器头末端侧开孔以下为金属部分显露，其余部分表面均被绝缘漆覆盖。导线插入注水接头和电凝线接头，并连接到电刀主机，该吸引器头可马上转变成单极电刀头，利用电刀脚踏开关控制。As a further solution of the present invention: except that the metal part is exposed below the opening on the end side of the suction head, the rest of the surface is covered by insulating varnish. The wires are inserted into the water injection connector and the electrocoagulation wire connector, and connected to the main body of the electric knife, and the suction head can be transformed into a monopolar electric knife head immediately, controlled by the foot switch of the electric knife.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
本发明是一种手术器械，具有微创，操作简单，拥有吸引、剥离、滴水、测量，电凝，电切等多种功能，不易阻塞，易于清洗，适合各类神经外科显微手术使用。本发明在使用过程中，可避免神经及血管等的医源性损伤，能大大减少术后神经损伤的并发症，同时在手术过程中，避免了吸引器经常堵塞的现象，使吸引能畅通无阻，保证了手术视野的清晰，可以转变为单极电刀头使用，为手术创造了良好的条件，也节约了手术时间和手术成本。The invention is a surgical instrument with minimal invasiveness, simple operation, multiple functions such as suction, peeling, dripping, measurement, electrocoagulation, electric cutting, etc., is not easy to block, easy to clean, and is suitable for use in various types of neurosurgical microsurgery. During the use of the present invention, iatrogenic damage to nerves and blood vessels can be avoided, and complications of postoperative nerve damage can be greatly reduced. At the same time, during the operation, the phenomenon of frequent blockage of the suction device is avoided, so that the suction can be unimpeded , to ensure a clear surgical field of view, and can be converted into a monopolar electric knife head, which creates good conditions for surgery and saves surgery time and cost.
附图说明Description of drawings
图1是本发明结构示意图；Fig. 1 is a structural representation of the present invention;
图2是图1的仰视图；Fig. 2 is the bottom view of Fig. 1;
图中：1-吸引器头通条、2-吸引器头连接吸引管接头、3-注水接头和电凝线接头、4-吸力控制孔、5-流水通道、6-吸引器头体部、7-刻度标记、8-吸引器头末端、9-吸引器头末端侧开孔、10-吸引器末端滴水口。In the figure: 1-cleaning strip of suction head, 2-connection of suction pipe joint of suction head, 3-water injection joint and electrocoagulation line joint, 4-suction control hole, 5-flowing water channel, 6-body of suction head, 7-Scale marks, 8-The end of the aspirator head, 9-The side opening at the end of the aspirator head, 10-Drip at the end of the aspirator.
具体实施方式detailed description
下面将结合本发明实施例，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
实施例1Example 1
请参阅图1-2，本发明实施例中，一种微创神经外科专用的多功能吸引器头，包括吸引器头连接吸引管接头2、注水接头和电凝线接头3、吸引器头体部6、吸引器头末端8以及依次贯穿吸引器头连接吸引管接头2、注水接头和电凝线接头3、吸引器头体部6、吸引器头末端8的吸引器头通条1。注水接头和电凝线接头3、吸引器头体部6的内部开设有流水通道5，流水通道5的入口位于注水接头和电凝线接头3的入水口。Please refer to Fig. 1-2, in the embodiment of the present invention, a kind of special multi-functional aspirator head for minimally invasive neurosurgery, including aspirator head connecting suction pipe connector 2, water injection connector and electrocoagulation wire connector 3, aspirator head body Part 6, the end 8 of the aspirator head, and the aspirator head strip 1 that runs through the aspirator head in turn to connect the suction pipe joint 2, the water injection joint and the electrocoagulation line joint 3, the body of the aspirator head 6, and the end of the aspirator head 8. The inside of the water injection joint and the electrocoagulation line joint 3 and the suction head body 6 is provided with a water flow channel 5 , and the inlet of the water flow channel 5 is located at the water inlet of the water injection joint and the electrocoagulation line joint 3 .
其中，吸引器头通条1，较整个吸引器头略长，比吸引器头末端管径略细，用于清洁吸引器头，解除阻塞。吸引器头通条1可以采用T型结构。Wherein, the aspirator head cleaning rod 1 is slightly longer than the whole aspirator head, and slightly thinner than the pipe diameter at the end of the aspirator head, and is used for cleaning the aspirator head and unblocking. The suction head cleaning rod 1 can adopt a T-shaped structure.
吸引器头连接吸引管接头2采用波纹管的结构，整体形状采用锥形设计，可以适应不同吸引管口径，便于连接紧密。The suction pipe joint 2 connected to the suction head adopts a corrugated pipe structure, and the overall shape adopts a tapered design, which can adapt to different suction pipe calibers and is convenient for tight connection.
注水接口3的近端方便连接输液器注水，也是内部流水通道5的入口，远端连接吸引器头体部6。注水接头和电凝线接头3为长方体结构，注水接头和电凝线接头3的一侧设有入水口。The proximal end of the water injection interface 3 is conveniently connected to the infusion set for water injection, and is also the entrance of the internal water flow channel 5, and the far end is connected to the head and body of the suction device 6. The water injection joint and the electrocoagulation line joint 3 are cuboid structures, and one side of the water injection joint and the electrocoagulation line joint 3 is provided with a water inlet.
吸力控制孔4，采用长水滴形状设计，方便术者根据需要手指堵塞孔的大小，决定吸引器头末端8开口吸力大小。The suction control hole 4 is designed in the shape of a long water drop, which is convenient for the operator to determine the suction force of the opening 8 at the end of the suction device according to the size of the hole blocked by fingers.
吸引器头内部的流水通道5，独立于吸引器头吸引通道，近端连接注水接头和电凝线接头3，远端开口位于吸引器头末端8的吸引器末端滴水口10。其作用是根据手术需要利用吸引器头滴水于双极电刀上，增加电刀电凝止血，避免双极电刀头结痂，也可以利用其加大冲水，清洁手术视野方便辨认神经、血管及寻找出血点。The water flow channel 5 inside the aspirator head is independent of the suction channel of the aspirator head, the proximal end is connected to the water injection joint and the electrocoagulation line joint 3, and the far end opening is located at the aspirator end drip 10 at the end 8 of the aspirator head. Its function is to use the aspirator head to drip water on the bipolar electric knife according to the needs of the operation, increase the electrocoagulation of the electric knife to stop bleeding, and avoid scabs on the bipolar electric knife head. Blood vessels and look for bleeding points.
吸引器头体部6，根据需要可有不同长短、粗细、质地略柔软，方便手术过程中根据需要塑形为各种角度、形状。The head and body of the suction device 6 can have different lengths, thicknesses, and slightly soft textures as required, so that it can be molded into various angles and shapes as required during the operation.
刻度标记7精确到毫米，从吸引器头末端8为0刻度。本发明使该吸引器头可以作为术中测量工具，用于测量病灶深度、切除肿瘤大小、骨窗大小等术中的无菌测量。The scale marks 7 are accurate to mm, and the scale is 0 from the end 8 of the aspirator head. The invention enables the aspirator head to be used as an intraoperative measurement tool for aseptic measurement in the operation such as measuring the depth of the lesion, the size of the resected tumor, and the size of the bone window.
吸引器头末端8的开口为光滑、圆弧形无创开口，上有吸引器末端滴水口10，侧方有吸引器头末端侧开孔9。吸引器头末端8较吸引器头体部6略细，二者连接处为斜坡状过渡，无创设计。由于吸引器头末端8较吸引器头体部6略细，使得通过吸引器头末端8的组织(碎骨头，肌肉组织，肿瘤组织等)一定能通过吸引器头体部6，减少吸引器头阻塞发生率，同时即便有阻塞也只会发生在吸引器头末端8部位，范围短。可以利用吸引器头通条1方便疏通，保证通畅。The opening of the suction head end 8 is a smooth, arc-shaped non-invasive opening with a suction end drip opening 10 and a suction head end side opening 9 on the side. The end 8 of the suction head is slightly thinner than the body 6 of the suction head, and the connection between the two is a slope-like transition, which is non-invasive. Because the aspirator head end 8 is slightly thinner than the aspirator head body portion 6, the tissue (broken bone, muscle tissue, tumor tissue, etc.) passing through the aspirator head end 8 must be able to pass through the aspirator head body portion 6, reducing the amount of suction of the aspirator head. The incidence of blockage is high, and even if there is blockage, it will only occur at the end 8 of the suction head, and the range is short. Can utilize suction device head cleaning strip 1 to facilitate dredging, guarantee unobstructed.
吸引器头末端侧开孔9，起到分散吸引器头末端8的吸力的微创作用，在显微解剖神经、微小血管时，吸力过大导致神经、血管损伤。The hole 9 on the side of the end of the aspirator head plays the role of dispersing the suction of the end of the aspirator 8. When microscopically dissecting nerves and tiny blood vessels, the excessive suction will cause damage to the nerves and blood vessels.
吸引器末端滴水口10，位于吸引器末端8的开口处，是流水通道5的出口，用于滴水或喷水，便于术者双极电凝止血，冲洗清洁术野。The drip port 10 at the end of the aspirator, located at the opening of the end of the aspirator 8, is the outlet of the flow channel 5, used for dripping or spraying water, which is convenient for the operator to stop bleeding by bipolar electrocoagulation and rinse the operative field.
除吸引器头末端侧开孔9以下为金属部分显露，其余部分表面均被绝缘漆覆盖。导线插入注水接头和电凝线接头3，并连接到电刀主机，该吸引器头可马上转变成单极电刀头，利用电刀脚踏开关控制。Except that the metal part is exposed below the end side opening 9 of the suction device head, the rest of the surface is covered by insulating varnish. The wire is inserted into the water injection joint and the electrocoagulation line joint 3, and is connected to the electrotome main body, and the aspirator head can be transformed into a monopolar electrotome head at once, and is controlled by the electrotome foot switch.
具体操作方式：Specific operation method:
本吸引器头操作简便，使用安全，使用时手持吸引器头，用吸引器末端8的端口对准出血或积血处即可，使用中可以触碰硬膜和神经。可根据颅脑、椎管等不同的手术部位及手术范围，选择不同口径，长度的吸引器头。例如颅脑、椎管肿瘤手术，可选择直径为1-3mm，长度25-30cm吸引器头；颅骨骨折，颅内硬膜外血肿手术，可选择直径3-5mm，长度20-25cm的吸引器头。在使用过程中，可根据吸引压力需要，用手指堵上或放开吸力控制孔4，来控制吸引器头末端8开口吸力大小。注水接口3的入水口连接输液器注水，通过流水通道5的入口至其出口，至吸引器末端8的开口处的吸引器末端滴水口10，滴水或喷水，冲洗清洁术野。当吸引器头阻塞时，推动吸引器头通条1来回移动，清洁吸引器头，解除阻塞。The aspirator head is easy to operate and safe to use. When in use, hold the aspirator head and align the port 8 at the end of the aspirator with bleeding or blood accumulation. During use, you can touch the dura mater and nerves. The aspirator head with different caliber and length can be selected according to different surgical sites and surgical ranges such as the cranium and spinal canal. For example, for brain and spinal canal tumor surgery, you can choose an aspirator head with a diameter of 1-3mm and a length of 25-30cm; for skull fractures and intracranial epidural hematoma surgery, you can choose an aspirator head with a diameter of 3-5mm and a length of 20-25cm head. During use, the suction control hole 4 can be blocked or released with fingers according to the suction pressure requirement, so as to control the suction force of the opening of the end 8 of the suction head. The water inlet of the water injection interface 3 is connected to the infusion set for water injection, and passes through the inlet of the water flow channel 5 to its outlet, to the suction end drip port 10 at the opening of the suction end 8, and drips or sprays water to rinse and clean the surgical field. When the suction head is blocked, push the suction head cleaning rod 1 to move back and forth to clean the suction head and remove the blockage.
本发明可根据手术部位的不同，选择不同尺寸的吸引器头，以方便手术，是微创神经外科专用的吸引器头。本发明可自行决定吸引工作的开始与结束，操作人性化，无需反复开启机器，节省了手术时间。吸引器头的吸引器头体部可折弯成所需角度，简单方便，操作范围广，材质软，吸引时在接触人体组织时减轻对人体组织的损伤。全金属不锈钢材质，可以反复消毒使用，节省了资源，也不会对环境造成污染。The present invention can select suction heads of different sizes according to different operation sites to facilitate operation, and is a special suction head for minimally invasive neurosurgery. The invention can decide the start and end of the suction work by itself, the operation is humanized, the machine does not need to be turned on repeatedly, and the operation time is saved. The body of the suction head of the suction head can be bent into a desired angle, which is simple and convenient, has a wide range of operation, and is made of soft material, which can reduce damage to human tissue when it contacts human tissue during suction. The all-metal stainless steel material can be repeatedly sterilized and used, which saves resources and does not pollute the environment.
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention.
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597897.4ACN107243088A (en) | 2017-07-20 | 2017-07-20 | A kind of special Multifunctional suction device head of Microinvasive neurosurgery |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597897.4ACN107243088A (en) | 2017-07-20 | 2017-07-20 | A kind of special Multifunctional suction device head of Microinvasive neurosurgery |
| Publication Number | Publication Date |
|---|---|
| CN107243088Atrue CN107243088A (en) | 2017-10-13 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710597897.4AWithdrawnCN107243088A (en) | 2017-07-20 | 2017-07-20 | A kind of special Multifunctional suction device head of Microinvasive neurosurgery |
| Country | Link |
|---|---|
| CN (1) | CN107243088A (en) |
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|---|---|---|---|---|
| CN111084660A (en)* | 2020-02-14 | 2020-05-01 | 肖健齐 | Neurosurgery electric coagulation electric excision instrument |
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| CN201743765U (en)* | 2010-07-06 | 2011-02-16 | 王瀛漪 | Bipolar electric coagulation and suction tube for neuroendoscopy operation |
| CN202270064U (en)* | 2011-03-10 | 2012-06-13 | 杜运生 | Multifunctional minimally-invasive small incision operation apparatus |
| CN203619672U (en)* | 2013-11-19 | 2014-06-04 | 中国人民解放军北京军区总医院 | Composite bipolar electrocoagulation aspirator for keyhole surgery |
| CN204337360U (en)* | 2014-05-21 | 2015-05-20 | 季万金 | Orthopaedics block-proof suction device |
| CN205867171U (en)* | 2016-05-12 | 2017-01-11 | 首都医科大学附属北京安贞医院 | Novel but aspirator poker in washout type art device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2301209Y (en)* | 1997-04-16 | 1998-12-23 | 彭怀德 | Medical suction tube |
| CN201743765U (en)* | 2010-07-06 | 2011-02-16 | 王瀛漪 | Bipolar electric coagulation and suction tube for neuroendoscopy operation |
| CN202270064U (en)* | 2011-03-10 | 2012-06-13 | 杜运生 | Multifunctional minimally-invasive small incision operation apparatus |
| CN203619672U (en)* | 2013-11-19 | 2014-06-04 | 中国人民解放军北京军区总医院 | Composite bipolar electrocoagulation aspirator for keyhole surgery |
| CN204337360U (en)* | 2014-05-21 | 2015-05-20 | 季万金 | Orthopaedics block-proof suction device |
| CN205867171U (en)* | 2016-05-12 | 2017-01-11 | 首都医科大学附属北京安贞医院 | Novel but aspirator poker in washout type art device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111084660A (en)* | 2020-02-14 | 2020-05-01 | 肖健齐 | Neurosurgery electric coagulation electric excision instrument |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication | Application publication date:20171013 |