Thoracic and abdominal puncture knife
A technology of abdominal cavity and thoracic cavity, which is applied in the field of medical equipment, can solve problems such as difficulty in radian, influence on puncture speed, difficulty in guaranteeing puncture effect, etc., and achieve the effect of convenient operation and material saving
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Embodiment 1
[0022] Example 1: see figure 1 , provides a cutter bar body 1 and a cutter head 2 which is integrally formed at one end of the cutter bar body 1 (the right end of the figure) and has a diameter equal to the diameter of the cutter bar body 1. On the cutter head 2, the cutter head 2 The right end of the blade constitutes a blade 21.
[0023] As the technical gist of the technical solution provided by the present invention: an easy-to-bend transition section 3 is formed between the aforementioned knife rod body 1 and the aforementioned knife head 2, and the easy-to-bend transition section 3 can also be called a weak strength section or Other similar technical features are called, and the diameter of the easy-to-bend transition section 3 is one-third of the diameter of the knife-shank body. Since the diameter of the knife-shank body 1 in this embodiment is 3.3mm, the easy-to-bend transition section 3 has a diameter of 1.1mm.
[0024] Depend on figure 1 As shown, a rod body tape...
Embodiment 2
[0028] Embodiment 2: Only change the diameter of the cutter body to 6.6mm, change the diameter of the easy-bending transition section 3 to 1.32mm; change the length of the tapered transition zone 11 of the rod body to 0.9cm, and change the tapered transition The length of zone 22 is changed to 0.3cm; the diameter of the drainage tube fitting 12 is changed to 4mm, and the length of the drainage tube fitting 12 is changed to 2.5cm, while the length of the knife rod body 1 is changed to 7.5cm. All the other are the same as the description to embodiment 1.
Embodiment 3
[0029] Embodiment 3: Only change the diameter of the cutter body 1 to 4.8mm, change the diameter of the easy-bending transition section 3 to 1.2mm; change the length of the tapered transition zone 11 of the rod body to 1.2cm, and change the cone The length of the transition zone 22 is changed to 0.4cm; the diameter of the drainage pipe fitting 12 is changed to 2mm, and the length of the drainage pipe fitting 12 is changed to 2cm, and the length of the knife rod body 1 is changed to 6cm. All the other are the same as the description to embodiment 1.
[0030] The present invention can be made in the corresponding size (parameter) range that limits to cutter bar body 1, rod body tapered transition area 11, drainage pipe fitting joint 12, knife head tapered transition area 22, easy-bending transition section 3 above Chest and abdominal puncture knives of various specifications.
[0031] The length of the cutter body 1 described in Embodiments 1 to 3 does not include the lengths o...
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