Fast ligator for small animal coronary artery
A technology for coronary arteries and small animals, applied in medical science, surgery, etc., can solve problems such as coronary artery positioning and ligation range inconsistency, ligation needles are easy to stay in the heart, and operation is difficult, so as to reduce the depth and range of ligation. , reduce human error, simple operation effect
Active Publication Date: 2016-06-15
ZHEJIANG UNIV
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Problems solved by technology
[0005] In order to overcome the existing difficulties in the establishment of myocardial ischemia models, such as difficult operation, inconsistent coronary artery positioning and ligation range, ligation needles are easy to indwell in the heart and cause ligation failure, etc., the present invention provides a small animal coronary artery rapid ligation device
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[0031] refer to Figure 1 to Figure 6 , a small animal coronary artery rapid ligation device, including a fixation frame 1, a positioning outer support 2 fixed around the heart, a positioning pointer 3 and a ligation mechanism 4, and the positioning outer support 2, positioning pointer 3 and ligation mechanism 4 are respectively set in sequence Located on the fixed frame 1, the positioning pointer 3 is connected to the ligation mechanism 4 and can move synchronously along the fixed frame 1;
[0032] The positioning outer bracket 2 includes a first positioning arm 21 and a second positioning arm 22 that are adjustable in relative position for determining the position of the heart, and a first flexible member for connecting the first positioning arm 21 and the second positioning arm 22 23, the two ends of the first flexible member 23 reversely bypass the fixed frame to form a first ring set on the fixed frame, the lower ends of the first positioning arm 21 and the second positio...
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The invention discloses a fast ligator for a small animal coronary artery. The fast ligator comprises a fixed frame, a positioning outer support fixed around the heart, a positioning pointer and a ligation mechanism, wherein the fixed frame is sequentially sleeved with the positioning outer support, the positioning pointer and the ligation mechanism, and the positioning pointer and the ligation mechanism are connected and synchronously move along the fixed frame; the fixed outer support comprises a first positioning arm, a second positioning arm and a first flexible part, the first positioning arm and the second positioning arm are used for determining the heart position, the relative positions of the first positioning arm and the second positioning arm are adjustable, and the first flexible part is used for connecting the first positioning arm with the second positioning arm; the end of the positioning pointer is located the highest point of heart beating; the ligation mechanism comprises a first ligation handle and a second ligation handle which are used for ligation and a second flexible part used for connecting the first ligation handle and the second ligation handle, a ligation needle is arranged at the upper end of the first ligation handle, a needle tray is arranged at the upper end of the second ligation handle, and after pricking through the heart wall, a barb type needle point is used in cooperation with the opposite needle tray.
Description
technical field [0001] The invention relates to a rapid ligator for small animal coronary arteries. Background technique [0002] The incidence of coronary atherosclerotic heart disease is increasing year by year, and it has become one of the important diseases that threaten human health. The study of coronary heart disease has also become a hotspot at present, and the animal model of myocardial ischemia with coronary artery ligation is the basis of this kind of research. However, the myocardial ischemia model of coronary artery ligation has high requirements for the operator, especially when the coronary artery is ligated, novices often cannot find the coronary artery, and the success rate of ligation is low. [0003] At present, the main method of coronary artery ligation is: manual ligation by the experimenter, that is, the experimenter uses traditional surgical methods to observe the direction of the coronary artery, and then uses a needle holder, tweezers and needle th...
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IPC IPC(8): A61B17/12
CPCA61B17/12009
Inventor 蔡秀军陈鸣宇王一帆项培炜冯旭朱柯磊
Owner ZHEJIANG UNIV