Takayama E, Fukuda H
Department of Otolaryngology, Saiseikai Central Hospital, Tokyo, Japan.
Keio J Med. 1990 Jun;39(2):86-90. doi: 10.2302/kjm.39.86.
The intracordal injection technique was first introduced by Brünings in 1911. This technique has been accepted as vocal rehabilitation for dysphonia caused by deficiencies of glottal closure. Although various injection materials have been evaluated, the injection procedure itself has not been studied. In this study, we measured the mechanical force required to perform intracordal injection by using a certain amount of substance, when varying the needle size and syringe type. Although a large needle can reduce the mechanical force for injection, leakage from the pinhole can not be prevented. We modified this technique by introducing a CITO JECT, a syringe, which is used for the anesthesia of the periodontal ligament, to perform the collagen injection. With this technique, the mechanical force required for the injection can be reduced to 1/2 to 1/4 of the force by the conventional technique. We conclude that the introduction of this syringe enable us to use the needle with smaller diameter to facilitate the intracordal injection.
声带内注射技术由布鲁宁斯于1911年首次提出。该技术已被认可用于声门闭合不全所致发音障碍的嗓音康复。尽管已对多种注射材料进行了评估，但注射操作本身尚未得到研究。在本研究中，我们在改变针头尺寸和注射器类型时，使用一定量的物质测量了进行声带内注射所需的机械力。尽管大号针头可降低注射所需的机械力，但无法防止针孔漏液。我们通过引入一种用于牙周膜麻醉的注射器CITO JECT来进行胶原蛋白注射，对该技术进行了改进。采用这种技术，注射所需的机械力可降至传统技术的1/2至1/4。我们得出结论，引入这种注射器使我们能够使用更细的针头来便于进行声带内注射。
