A new intracavitary tumor cryoablation catheter and its operating method
A technology for ablating catheters and tumors, applied in the field of medical devices, can solve the problems of increasing the difficulty and risk of implantation, balloon rupture, and easy deformation and folding of the balloon, so as to increase the cryoablation area, reduce the cold source pressure, The effect of increasing the contact area
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specific Embodiment 2
[0085] As shown in Figures 7 to 11, a new type of intracavitary tumor cryoablation catheter includes a balloon 1, an air intake line 3, a gas return line 4, a vacuum line 5, and a proximal end of the air intake line 3 that is sealed. The connected air inlet joint 6 , the return air joint 7 sealingly connected with the proximal end of the return air line 4 , and the vacuum joint 8 sealingly connected with the proximal end of the vacuum line 5 . The most distal end of the intracavitary tumor cryoablation catheter is the balloon 1, and the structure of the balloon 1 is the same as that of the specific embodiment 1, and will not be repeated here, as Figures 7a-7c As shown, the distal end of the balloon 1 is sealingly connected with the distal end of the buffer unit 2, for example, the distal end of the balloon 1 is turned inward first, and then the buffer unit 2 is inserted into the buffer unit 2. In the balloon 1, the distal end of the buffer unit 2 is sealed and connected to th...
specific Embodiment 3
[0087] As shown in Figures 12 to 16, a new type of intracavitary tumor cryoablation catheter includes a balloon 1, an air intake line 3, a gas return line 4, a vacuum line 5, and a proximal end of the air intake line 3 that is sealed. The connected air inlet joint 6 , the return air joint 7 sealingly connected with the proximal end of the return air line 4 , and the vacuum joint 8 sealingly connected with the proximal end of the vacuum line 5 . The most distal end of the intracavitary tumor cryoablation catheter is the balloon 1, and the structure of the balloon 1 is the same as that of the specific embodiment 1, and will not be repeated here, as Figures 12a-12c As shown, the distal end of the balloon 1 is sealingly connected with the distal end of the buffer unit 2, and a fixing sleeve 26 is arranged outside the connection, and the inner wall of the fixing sleeve 26 is in contact with the balloon 1 and the buffer unit 2. The outer wall of the connection point of the buffer u...
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