建立异物创伤性动脉瘤的犬模型，为伴血管损伤软组织异物一站式介入治疗研究提供动物模型。

随机选取2年龄的健康雄性比格犬7只，分为颈动脉瘤造模5只和未造模2只，造模于右侧颈动脉共5支血管为研究组，其左侧颈动脉及未造模2只犬两侧颈动脉共9支血管为对照组。研究组将长约15~20 mm的离断颈静脉剪开、缝合于同侧颈总动脉前璧上，以弯型断针穿破静脉片及动脉前壁，静脉片-动脉壁间腔搏动性充盈且无缝缘渗漏后，断针部分留存于该间腔甚或动脉腔内，逐层缝合手术区域组织。然后，经皮经股动脉插管选择性颈总动脉进行数字减影血管造影（DSA）。对照组颈动脉仅于其旁以缝针经皮扎伤软组织且无明显出血及血肿。术前、术后行颈部CT血管成像（CTA）和数字放射摄影（DR）检查与评估。

研究组5支右侧颈动脉断针创伤性动脉瘤均成功造模，技术成功率100%；DSA清晰显示动脉破口、动脉瘤状动脉突起及断针异物，载瘤动脉局部轻度痉挛及狭窄，创伤性动脉瘤模型的瘤颈宽度为（2.1±1.3）mm，瘤体宽（9.7±1.1）mm，瘤体高（4.2±1.7）mm；CTA不如DSA显示效果佳。对照组9支颈动脉均正常。

采用颈静脉片侧-侧吻合于同侧颈动脉前壁上并以断针穿破静、动脉壁且断针部分留置于其间的技术与方法，成功构建了异物创伤性动脉瘤犬模型。

To establish the model of traumatic aneurysm with foreign body in canine carotid artery, and to provide an animal model for one-stop interventional treatment of soft-tissue foreign body with vascular injury.

Seven healthy male Beagles dogs aged about 2 years were randomly modeled on right carotid artery in 5 and unmodeled in 2. In the research group with 5 carotid arteries, local jugular vein about 15-20 mm in length was cut off and sewn into the anterior wall of the ipsilateral carotid artery with 6-0 suture. The curved suture needle was then worn through the vein and artery, and kept partially in them even in the artery cavity. The tissues in surgical area were sutured layer by layer after the artificial cavity between the vein and arterial walls pulsating protrusion without leakage from the stitched edge. Finally, selective common carotid artery digital subtraction angiography (DSA) was performed by percutaneous transfemoral artery to further confirm the aneurysm model. In control group with 9 carotid arteries, only soft tissues surrounding the common carotid artery were percutaneously injured using a needle without significant bleeding and hematoma. Digital radiographs and CT angiography of neck were performed before and after the modeling operation.

Five traumatic aneurysms with foreign body of broken needle were made successfully in canine common carotid artery, and the technical success rate of establishment of traumatic aneurysm with foreign body was 100%. DSA clearly showed the arterial rupture, aneurysm, broken needle, and mild vasospasm and stenosis of local parent artery, which showed poorly on CTA. No abnormal findings were shown in common carotid arteries in control group.

The canine model of foreign body within traumatic aneurysm was successfully constructed using the method of a residual broken needle breaking through the anastomotic vessel wall after a side-to-side anastomosis to the carotid artery wall with a piece of ipsilateral jugular vein.