CN105251099A - Double-balloon intestine fistulization catheter for preventing anastomotic fistula after colorectal surgery - Google Patents
Double-balloon intestine fistulization catheter for preventing anastomotic fistula after colorectal surgery Download PDFInfo
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- CN105251099A CN105251099A CN201510699515.XA CN201510699515A CN105251099A CN 105251099 A CN105251099 A CN 105251099A CN 201510699515 A CN201510699515 A CN 201510699515A CN 105251099 A CN105251099 A CN 105251099A
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- 210000000936 intestine Anatomy 0.000 title claims description 11
- 238000010878 colorectal surgery Methods 0.000 title abstract description 5
- 206010068797 Anastomotic fistula Diseases 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 210000001072 colon Anatomy 0.000 claims description 13
- 206010016717 Fistula Diseases 0.000 claims description 10
- 230000003890 fistula Effects 0.000 claims description 10
- 210000000664 rectum Anatomy 0.000 claims description 10
- 230000002980 postoperative effect Effects 0.000 claims 9
- 239000013536 elastomeric material Substances 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 27
- 239000007924 injection Substances 0.000 abstract description 27
- 230000000968 intestinal effect Effects 0.000 abstract description 16
- 206010050456 Anastomotic leak Diseases 0.000 abstract description 14
- 239000012530 fluid Substances 0.000 abstract description 11
- 210000004534 cecum Anatomy 0.000 abstract description 10
- 210000003815 abdominal wall Anatomy 0.000 abstract description 9
- 210000000683 abdominal cavity Anatomy 0.000 abstract description 4
- 206010015866 Extravasation Diseases 0.000 abstract description 3
- 239000013013 elastic material Substances 0.000 abstract description 3
- 230000036251 extravasation Effects 0.000 abstract description 3
- 210000000813 small intestine Anatomy 0.000 abstract description 3
- 210000001035 gastrointestinal tract Anatomy 0.000 abstract description 2
- 238000001356 surgical procedure Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 9
- 210000003405 ileum Anatomy 0.000 description 6
- 210000003767 ileocecal valve Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 208000001333 Colorectal Neoplasms Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 210000003195 fascia Anatomy 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 210000004303 peritoneum Anatomy 0.000 description 3
- 230000008733 trauma Effects 0.000 description 3
- 206010009944 Colon cancer Diseases 0.000 description 2
- 230000003872 anastomosis Effects 0.000 description 2
- 238000002271 resection Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000013872 defecation Effects 0.000 description 1
- 210000004921 distal colon Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 210000003736 gastrointestinal content Anatomy 0.000 description 1
- 238000007455 ileostomy Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
本发明公开了一种用于结直肠术后防止吻合口瘘的双球囊肠造瘘导管，包括导管管体、第一球囊、第二球囊、螺纹压片、第一注水口和第二注水口。第一球囊和第二球囊是两个套在导管管体外的由弹性材料制成空心球囊，其中第一球囊靠近头端。螺纹压片套在第二球囊与尾端之间。导管管体位于第一球囊和头端之间的管壁上设有侧孔。第一注水口和第二注水口位于导管管体的尾端处；分别连通第一球囊和第二球囊。本发明在肠道手术后插入肠道时，第一球囊注水后，隔开小肠的流通，使肠液通过导管头端及侧孔引出体外。第二球囊注水后与置于体外的螺纹压片相互协同固定导管，防止导管滑脱或移位，同时使盲肠肠壁贴紧腹壁并粘连，防止肠液外渗至腹腔。
The invention discloses a double-balloon enterostomy catheter for preventing anastomotic leakage after colorectal surgery, which comprises a catheter tube body, a first balloon, a second balloon, a threaded tablet, a first water injection port and a second balloon. Two water injection ports. The first balloon and the second balloon are two hollow balloons made of elastic material sheathed outside the catheter tube, wherein the first balloon is close to the head end. The thread pressing piece is sleeved between the second balloon and the tail end. A side hole is provided on the tube wall of the catheter tube body between the first balloon and the head end. The first water injection port and the second water injection port are located at the tail end of the catheter body; they communicate with the first balloon and the second balloon respectively. When the present invention is inserted into the intestinal tract after intestinal surgery, the first balloon is injected with water to separate the circulation of the small intestine, so that intestinal fluid can be drawn out of the body through the catheter head and side holes. After the second balloon is injected with water, it cooperates with the threaded tablet placed outside the body to fix the catheter to prevent the catheter from slipping or shifting. At the same time, the cecum wall is attached to the abdominal wall and adhered to prevent the extravasation of intestinal fluid into the abdominal cavity.
Description
技术领域 technical field
本发明涉及本发明专利涉及医疗器械技术领域，特别涉及一种用于结直肠术后防止吻合口瘘的双球囊肠造瘘导管。 The present invention relates to the technical field of medical devices, and in particular to a double-balloon enterostomy catheter for preventing anastomotic leakage after colorectal surgery.
背景技术 Background technique
结直肠癌是消化道最常见的恶性肿瘤之一，具有高发病率和高死亡率等特点。目前，手术切除是结直肠癌最有效的治疗方案。临床上切除结直肠肿瘤后，需将近端与远端结肠的断端吻合。吻合口瘘是临床常见并发症，欧美国家发生率约为手术病人的20%，国内约为5%。吻合口瘘治疗困难，病人住院时间长，费用高，严重时危及病人生命。国内外医疗机构常规采用结肠或末端回肠造瘘术，预防吻合口瘘。这种主动造瘘的方法，通过将肠内容物提前导出，使其不经过吻合口，以期达到预防或减少吻合口瘘的目的。但该方法同时也增加了手术创伤，降低了患者生活质量，且需要二次手术还纳肠管，并发症发生率亦相应提高。因此，有必要设计一种既能预防吻合口瘘、又不增加患者创伤的新方法。 Colorectal cancer is one of the most common malignant tumors of the digestive tract with high morbidity and mortality. Currently, surgical resection is the most effective treatment option for colorectal cancer. Clinically, after the colorectal tumor is resected, the ends of the proximal and distal colons need to be anastomosed. Anastomotic leakage is a common complication in clinical practice. The incidence rate is about 20% of surgical patients in European and American countries, and about 5% in China. The treatment of anastomotic leakage is difficult, the hospitalization time of the patient is long, the cost is high, and the life of the patient is endangered when it is serious. Medical institutions at home and abroad routinely use colon or terminal ileostomy to prevent anastomotic leakage. This active fistula method is to prevent or reduce anastomotic leakage by leading out the intestinal content in advance so that it does not pass through the anastomotic stoma. However, this method also increases surgical trauma, reduces the quality of life of patients, and requires a second operation to restore the intestinal tube, and the incidence of complications also increases accordingly. Therefore, it is necessary to design a new method that can prevent anastomotic leakage without increasing patient trauma.
发明内容 Contents of the invention
本发明所要解决的问题：设计一种预防吻合口瘘、又不增加患者创伤的装置。 The problem to be solved by the present invention is to design a device for preventing anastomotic leakage without increasing trauma to patients.
为解决上述问题，本发明采用的方案如下： In order to solve the above problems, the scheme adopted by the present invention is as follows:
一种用于结直肠术后防止吻合口瘘的双球囊肠造瘘导管，包括导管管体、第一球囊、第二球囊、螺纹压片、第一注水口和第二注水口；导管管体为空心管体结构，两端分别为头端和尾端；第一球囊和第二球囊是两个套在导管管体外的由弹性材料制成空心球囊；其中，第一球囊靠近头端；第二球囊位于第一球囊和尾端之间；螺纹压片通过螺纹啮合的方式套在第二球囊与尾端之间的导管管体上；导管管体位于第一球囊和头端之间的的管壁上设有侧孔；第一注水口和第二注水口位于导管管体的尾端处；第一注水口通过第一连通管连接并连通第一球囊；第二注水口通过第二连通管连接并连通第二球囊。 A double-balloon enterostomy catheter for preventing anastomotic leakage after colorectal surgery, comprising a catheter body, a first balloon, a second balloon, a threaded tablet, a first water injection port, and a second water injection port; The catheter tube body is a hollow tube body structure, and the two ends are the head end and the tail end respectively; the first balloon and the second balloon are two hollow balloons made of elastic material that are sheathed outside the catheter tube body; wherein, the first The balloon is close to the head end; the second balloon is located between the first balloon and the tail end; the threaded pressing piece is sleeved on the catheter tube body between the second balloon and the tail end by thread engagement; the catheter tube body is located A side hole is arranged on the tube wall between the first balloon and the head end; the first water injection port and the second water injection port are located at the tail end of the catheter body; A balloon; the second water injection port is connected and communicated with the second balloon through the second communication tube.
进一步，螺纹压片包括螺纹柱和环状压片；螺纹柱和环状压片同轴相连，形成螺纹管腔；螺纹管腔内设有内螺纹；导管管体设有一段带有外螺纹的螺纹段；螺纹段位于第二球囊和尾端之间；螺纹压片通过螺纹段处外螺纹和内螺纹的啮合套在导管管体上。 Further, the threaded pressing piece includes a threaded column and an annular pressing piece; the threaded column and the annular pressing piece are coaxially connected to form a threaded lumen; the threaded lumen is provided with an internal thread; the catheter body is provided with a section with an external thread A threaded section; the threaded section is located between the second balloon and the tail end; the threaded pressing piece is sleeved on the catheter tube body through the engagement of the external thread and the internal thread at the threaded section.
进一步，第一连通管和第二连通管插入导管管体位于尾端和螺纹压片之间的管壁，然后经导管管体的导管管腔分别连接第一球囊和第二球囊。 Further, the first communication tube and the second communication tube are inserted into the tube wall of the catheter tube body between the tail end and the threaded pressing piece, and then respectively connected to the first balloon and the second balloon through the catheter lumen of the catheter tube body.
进一步，第一连通管和第二连通管插入导管管体的管壁的位置与尾端的距离不相同。 Further, the distance between the position where the first communication tube and the second communication tube are inserted into the tube wall of the catheter tube body is different from the tail end.
进一步，第一球囊与头端之间的距离A为5cm；第一球囊与第二球囊之间的距离C为20cm；螺纹段的长度F为5cm；螺纹段与第二球囊之间的距离E为3cm；螺纹段与尾端之间的距离G为12cm；螺纹柱的长度L1为3cm；环状压片的厚度L2为0.5cm；导管管体的长度为50cm；导管管体的外径为1cm。 Further, the distance A between the first balloon and the head end is 5cm; the distance C between the first balloon and the second balloon is 20cm; the length F of the threaded section is 5cm; the distance between the threaded section and the second balloon The distance E between them is 3cm; the distance G between the threaded section and the tail end is 12cm; the length L1 of the threaded column is 3cm; the thickness L2 of the annular pressing piece is 0.5cm; the length of the catheter tube is 50cm; The outer diameter is 1cm.
进一步，导管管体能够弯曲。 Further, the catheter tube can be bent.
本发明的技术效果如下： Technical effect of the present invention is as follows:
本发明在结直肠手术后经盲肠壁戳孔插入，头端通过回盲瓣置入末端回肠。置入末端回肠内的第一球囊注水后，隔开小肠的流通，使肠液通过导管头端及侧孔引出体外。第二球囊注水后，可固定导管，防止导管从肠管内滑脱或移位。该球囊与置于体外的螺纹压片相互协同，适度挤压，使导管穿过之处的盲肠肠壁紧贴腹壁，可防止肠液外渗至腹腔。该处肠壁贴附腹壁一段时间后即形成牢固粘连，在导管拔除后，窦道能迅速愈合。 The invention is inserted through the cecum wall after the colorectal operation, and the head end is inserted into the terminal ileum through the ileocecal valve. After the first balloon placed in the terminal ileum is filled with water, the circulation of the small intestine is separated, and the intestinal fluid is led out of the body through the catheter tip and side holes. After the second balloon is filled with water, the catheter can be fixed to prevent the catheter from slipping or dislodging from the bowel. The balloon cooperates with the threaded pressing tablet placed outside the body to moderately squeeze, so that the cecum wall where the catheter passes is close to the abdominal wall, which can prevent extravasation of intestinal fluid into the abdominal cavity. The intestinal wall adheres to the abdominal wall for a period of time and then forms a firm adhesion. After the catheter is removed, the sinus can heal quickly.
附图说明 Description of drawings
图1是本发明的结构示意图。 Fig. 1 is a structural schematic diagram of the present invention.
图2是本发明的应用结构示意图。其中，901是皮肤层，902是脂肪层，903是肌肉层，904是腹膜和筋膜，911是盲肠，912是阑尾，913是结肠，914是回肠，915是回盲瓣。 Fig. 2 is a schematic diagram of the application structure of the present invention. Among them, 901 is the skin layer, 902 is the fat layer, 903 is the muscle layer, 904 is the peritoneum and fascia, 911 is the cecum, 912 is the appendix, 913 is the colon, 914 is the ileum, and 915 is the ileocecal valve.
图3是螺纹压片的结构示意图。 Fig. 3 is a structural schematic diagram of the threaded tablet.
具体实施方式 detailed description
下面结合附图对本发明做进一步详细说明。 The present invention will be described in further detail below in conjunction with the accompanying drawings.
如图1、图2、图3所示，一种用于结直肠术后防止吻合口瘘的双球囊肠造瘘导管，包括导管管体1、第一球囊2、第二球囊3、螺纹压片4、第一注水口5和第二注水口6。导管管体1为空心管体结构，能够弯曲，两端分别为头端18和尾端19。第一球囊2和第二球囊3是两个套在导管管体1外的由弹性材料制成空心球囊。第一球囊2和第二球囊3在注水后能够膨胀，抽水后能够收缩。其中，第一球囊2靠近头端18；第二球囊3位于第一球囊2和尾端19之间。第一球囊2与头端18之间的距离A为5cm。第一球囊2与第二球囊3之间的距离C为20cm。第一球囊2自身占据导管管体的长度B为3cm。第二球囊3自身占据导管管体的长度D为2cm。螺纹压片4通过螺纹啮合的方式套在第二球囊3与尾端19之间的导管管体1上。具体到本实施例来说，螺纹压片4包括螺纹柱41和环状压片42。螺纹柱41和环状压片42同轴相连，形成螺纹管腔44。螺纹柱41的长度L1为3cm。环状压片42的厚度L2为0.5cm。螺纹管腔44内设有内螺纹43。导管管体1设有一段带有外螺纹的螺纹段12。螺纹段12的长度F为5cm。螺纹段12位于第二球囊3和尾端19之间。螺纹段12与第二球囊3之间的距离E为3cm。螺纹段12与尾端3之间的距离G为12cm。螺纹压片4通过螺纹段12处外螺纹和内螺纹43的啮合套在导管管体1上。A至G段相加即为导管管体1的长度，为50cm。导管管体1的外径为1cm。导管管体1位于第一球囊2和头端18之间的的管壁上设有侧孔11。第一注水口5和第二注水口6分别用于为第一球囊2和第二球囊3注水或抽水。第一注水口5和第二注水口6位于导管管体1的尾端19处。第一注水口5通过第一连通管51连接并连通第一球囊2。第二注水口6通过第二连通管61连接并连通第二球囊3。具体到本实施例来说，第一连通管51和第二连通管61插入导管管体1位于尾端19和螺纹压片4之间的管壁，然后经导管管体1的导管管腔分别连接第一球囊2和第二球囊3。第一连通管51和第二连通管61插入导管管体1的管壁的位置与尾端19的距离不相同。由此可以根据注水口靠近尾端距离的不同判断，第一注水口5和第二注水口6中，哪个注水口连接第一球囊2，哪个注水口连接第二球囊3。 As shown in Figure 1, Figure 2, and Figure 3, a double-balloon enterostomy catheter for preventing anastomotic leakage after colorectal surgery includes a catheter body 1, a first balloon 2, and a second balloon 3 , threaded tablet 4, first water injection port 5 and second water injection port 6. The catheter tube body 1 is a hollow tube body structure, which can be bent, and the two ends are respectively a head end 18 and a tail end 19 . The first balloon 2 and the second balloon 3 are two hollow balloons which are made of elastic material and are sheathed outside the catheter tube body 1 . The first balloon 2 and the second balloon 3 can expand after water injection, and can contract after water pumping. Wherein, the first balloon 2 is close to the head end 18 ; the second balloon 3 is located between the first balloon 2 and the tail end 19 . The distance A between the first balloon 2 and the head end 18 is 5 cm. The distance C between the first balloon 2 and the second balloon 3 is 20 cm. The first balloon 2 itself occupies a length B of 3 cm in the catheter tube body. The second balloon 3 itself occupies a length D of 2 cm of the catheter tube body. The thread pressing piece 4 is sleeved on the catheter tube body 1 between the second balloon 3 and the tail end 19 through thread engagement. Specifically for this embodiment, the threaded pressing piece 4 includes a threaded column 41 and an annular pressing piece 42 . The threaded column 41 is coaxially connected with the annular pressing piece 42 to form a threaded lumen 44 . The length L1 of the threaded column 41 is 3 cm. The thickness L2 of the annular pressing piece 42 is 0.5 cm. Internal threads 43 are provided in the threaded lumen 44 . The catheter body 1 is provided with a threaded section 12 with an external thread. The length F of the threaded segment 12 is 5 cm. The threaded section 12 is located between the second balloon 3 and the tail end 19 . The distance E between the threaded segment 12 and the second balloon 3 is 3 cm. The distance G between the thread segment 12 and the tail end 3 is 12 cm. The thread pressing piece 4 is sleeved on the catheter tube body 1 through the engagement of the external thread at the threaded section 12 and the internal thread 43 . The addition of sections A to G is the length of the catheter tube body 1, which is 50 cm. The outer diameter of the catheter tube body 1 is 1 cm. A side hole 11 is provided on the tube wall of the catheter tube body 1 between the first balloon 2 and the head end 18 . The first water injection port 5 and the second water injection port 6 are respectively used for filling or drawing water into the first balloon 2 and the second balloon 3 . The first water injection port 5 and the second water injection port 6 are located at the tail end 19 of the conduit body 1 . The first water injection port 5 is connected and communicated with the first balloon 2 through the first communication tube 51 . The second water injection port 6 is connected and communicated with the second balloon 3 through the second communication tube 61 . Specifically for this embodiment, the first connecting tube 51 and the second connecting tube 61 are inserted into the tube wall of the catheter tube body 1 between the tail end 19 and the threaded pressing piece 4, and then pass through the catheter lumen of the catheter tube body 1 respectively. The first balloon 2 and the second balloon 3 are connected. The distance between the position where the first communication tube 51 and the second communication tube 61 are inserted into the tube wall of the catheter body 1 is different from the tail end 19 . Therefore, it can be judged according to the distance between the water injection port and the tail end, which water injection port is connected to the first balloon 2 and which water injection port is connected to the second balloon 3 among the first water injection port 5 and the second water injection port 6 .
图2是本实施例应用在肠道手术后插入人体腹部时的情形。其中，901是皮肤层，902是脂肪层，903是肌肉层，904是腹膜和筋膜，911是盲肠，912是阑尾，913是结肠，914是回肠，915是回盲瓣。皮肤层901，脂肪层902，肌肉层903，腹膜和筋膜904组成腹壁。直肠或结肠部分切除术后，为防止吻合口瘘，可行末端回肠双球囊导管置管造瘘术。具体步骤如下：适当游离回盲部，于盲肠距离腹壁最近处打开一侧孔，插入导管。将带侧孔的导管管体1的头端18经回盲瓣915置入末端回肠914，放入深度为能将第二球囊3完整地放入盲肠腔内。盲肠壁侧孔处作一荷包缝合予以关闭并固定导管。通过第二注水孔6为第二球囊3注水，防止导管滑出肠管或移位。然后通过第一注水口5为第一球囊2注水，注水量根据小肠管径调整，以球囊紧贴肠壁，肠管适度充盈，又不影响肠壁血运为宜。第一球囊2充盈后可阻止肠液流向远端肠管，污染、腐蚀吻合口。最后将导管通过腹壁戳孔引出体外，将螺纹压片4通过螺纹适度旋紧，与第二球囊3协同挤压，使导管穿过之处的盲肠肠壁紧贴腹壁，防止肠液外渗至腹腔。导管管体1的尾端19接引流袋，回收引流的肠液。通过该措施将肠液引流至体外，防止肠液流经吻合口处污染、腐蚀吻合口，可避免或减少吻合口瘘的发生。术后2周经临床评估，在排除吻合口瘘的情况下，开放第一注水口5，将第一球囊2内的水抽空，使肠液重新流向远端结直肠。待患者正常通气通便，确认无吻合口瘘的情况下，于术后3周旋除螺纹压片4，开放第二注水口6，将第二球囊3内的水排空，拔除本双球囊肠造瘘导管。因盲肠壁已与腹壁形成牢固粘连，肠液不会外渗至腹腔。通过腹壁肌肉收缩，导管窦道1-2天后即能自行愈合。 Fig. 2 is the situation when this embodiment is inserted into the abdomen of a human body after intestinal surgery. Among them, 901 is the skin layer, 902 is the fat layer, 903 is the muscle layer, 904 is the peritoneum and fascia, 911 is the cecum, 912 is the appendix, 913 is the colon, 914 is the ileum, and 915 is the ileocecal valve. The skin layer 901, fat layer 902, muscle layer 903, peritoneum and fascia 904 make up the abdominal wall. After partial resection of the rectum or colon, in order to prevent anastomotic leakage, double-balloon catheterization of the terminal ileum can be used. The specific steps are as follows: Appropriately mobilize the ileocecum, open a side hole in the cecum closest to the abdominal wall, and insert a catheter. Insert the head end 18 of the catheter tubing body 1 with a side hole into the terminal ileum 914 through the ileocecal valve 915 to a depth such that the second balloon 3 can be completely placed into the cecum cavity. A purse string suture was made at the side hole of the cecum wall to close and fix the catheter. Fill the second balloon 3 with water through the second water injection hole 6 to prevent the catheter from slipping out of the intestine or shifting. Then inject water into the first balloon 2 through the first water injection port 5. The amount of water injected is adjusted according to the diameter of the small intestine. After the first balloon 2 is inflated, it can prevent intestinal fluid from flowing to the distal intestinal tube, contaminating and corroding the anastomosis. Finally, the catheter is drawn out of the body through the hole in the abdominal wall, and the threaded tablet 4 is properly tightened through the thread, and squeezed together with the second balloon 3, so that the cecum wall where the catheter passes is close to the abdominal wall to prevent extravasation of intestinal fluid. abdominal cavity. The tail end 19 of the catheter tube body 1 is connected with a drainage bag to recover the drained intestinal fluid. Through this measure, the intestinal fluid can be drained out of the body to prevent the intestinal fluid from polluting and corroding the anastomosis, which can avoid or reduce the occurrence of anastomotic leakage. After 2 weeks of clinical evaluation, if anastomotic leakage was ruled out, the first water injection port 5 was opened, and the water in the first balloon 2 was evacuated to allow the intestinal fluid to flow to the distal colorectum again. After the patient has normal ventilation and defecation, and confirms that there is no anastomotic leakage, the threaded tablet 4 is removed 3 weeks after the operation, the second water injection port 6 is opened, the water in the second balloon 3 is emptied, and the double balloon is pulled out. Sac enterostomy catheter. Because the cecum wall has formed a firm adhesion with the abdominal wall, intestinal fluid will not leak into the abdominal cavity. Through the contraction of the abdominal wall muscles, the catheter sinus can heal itself after 1-2 days.
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| CN105708514A (en) * | 2016-04-14 | 2016-06-29 | 吴德印 | Device for uterus hemostasis |
| CN106473834A (en) * | 2016-12-13 | 2017-03-08 | 郑州大学第附属医院 | The autologous refluxing device of intestinal contents and using method after small intestine two-chamber fistulization |
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| CN111450330A (en) * | 2020-04-08 | 2020-07-28 | 海南省人民医院 | Drainage device for critical care |
| CN112295082A (en) * | 2020-11-25 | 2021-02-02 | 浙江海创医疗器械有限公司 | Catheter limiting device for pancreas intestine anastomat and pancreas intestine anastomat |
| CN113577514A (en) * | 2021-09-03 | 2021-11-02 | 遂昌县人民医院 | Drainage tube capable of relieving postoperative pain of thoracic cavity and convenient to fix and using method thereof |
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| CN113577514A (en) * | 2021-09-03 | 2021-11-02 | 遂昌县人民医院 | Drainage tube capable of relieving postoperative pain of thoracic cavity and convenient to fix and using method thereof |
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