Creation of the way to prevent back pain after spinal anesthesia by the example of physic-mathematic model of spinal needle deformation
R.R. SAFIN, M.V. MALEEV
Republican Clinical Hospital of the MH of RT, 138 Orenburgskiy Trakt, Kazan, Russian Federation, 420064
Safin R.R. — Cand. Med. Sc., anesthesiologist-resuscitator of the Department of reanimation intensive care, tel. +7-919-683-29-14, e-mail: [email protected]
Maleev M.V. — Cand. Phys. and Math. Sc., Head of the Department of Patent and Inventive work, tel. (843) 237-35-23, e-mail: [email protected]
Theoretical basement of noninvasive conductor design was presented and practical experience of using this devise among 297 patients is estimated. In usual way thin spinal needles demand using thick invasive introducer, which is a factor of additional vertebra traumatization and source of back pain. From angle of classical fundamental physic lows original physic-mathematical model was designed, which reflects all factors reliable of needle deformation at spinal punction. This theoretical basement permit to invent noninvasive conductor which increase needle hardness without excessive vertebra traumatization and back pains.
Key words: spinal anesthesia, spinal needle deformation, spinal anesthesia techniques.
REFERENCES
- Koryachkin V.A. Neyroaksial’nye blokady [Neuraxial blockade]. Saint Petersburg: ELBI-SPb, 2013. 542 p.
- Phillips O., Ebner H., Nelson A. Neurologic Complications Following Spinal Anesthesia with Lidocaine: A Prospective Revieiv of 10,440 Cases. Anesthesiology, 1969, vol. 30, pp. 284-289.
- Оpredelenie kriticheskoy sily po formule Eylera [Determination of the critical force of Euler’s formula], available at: http://www.yaklass.ru/materiali?mode=cht&chtid=699
- Soprotivlenie materialov. Raschet szhatykh sterzhney na ustoychivost’ [Strength of Materials. Calculation of the stability of the compressed bars], available at: http://onfaq.ru/load/metodichki/soprotivlenie_materialov_raschet_szhatykh_sterzhnej_na_ustojchivost/7-1-0-119
- Safin R.R., Pankov I.O., Anisimov O.G. Napravitel’ dlya provedeniya tonkoy spinnomozgovoy igly: pat. 121436 Ros. Federatsiya: MPK 51 A61V 17 ∕ 34, A61M 5 ∕ 32 ∕; zayavitel’ i patentoobladatel’ Safin R.R. №2012118337 ∕ 14; zayavl. 03.05.2012 [Guide for thin spinal needle: US Pat. Ros 121,436. Africa: IPC A61V 51 17/34, A61M 5/32; applicant and patentee Safin R.R. no. 2012118337. 14; appl. 03.05.2012; publ. 27.10.2012]; published. 27.10.2012, byul. no. 30, p. 11.
- (GOST R ISO 9626-2013) Tablitsa 1 X6CrNiNb18-1 [(GOST R ISO 9626-2013) Table 1 X6CrNiNb18-10], available at: https://standartgost.ru/ 9E_9626-2013
- Mezhdunarodnye analogi korrozionno-stoykikh i zharoprochnykh staley. Marki nerzhaveyushchikh staley X6CrNiNb18-10 i 08kh18N12B [The international counterparts corrosion-resistant and heat resistant steels. Brand stainless steel and X6CrNiNb18-10 08h18N12B], available at: http://neva-stal.ru/nerzhaveyuschaya_stal
- Kharakteristika nerzhaveyushchey stali 08kh18N12B [Characteristics of stainless steel 08h18N12B], available at: http://www.allmetals.ru/sortament/index.php?cid=1&gid=33922&sid=10
- Edomwonyi N.P., Isesele T.O. Transient neurological symptoms following spinal anesthesia for cesarean section. Middle East J Anaesthesiol, 2010, vol. 20, pp. 809-813.
- Zaric D., Pace N.L. Transient neurologic symptoms (TNS) following spinal anaesthesia with lidocaine versus other local anaesthetics. Anesth Analg, 2005, vol. 100, pp. 1811-1816.
- Kroin J.S., Buvanendran A., Tuman K.J. et al. Safety of local anesthetics administered intrathecally in diabetic rats. Pain Med, 2012, vol. 13, pp. 802-807.
- Hodgson P., Liu S., Batra M. et al. Procaine compared with lidocaine for incidence of transient neurologic symptoms. Reg. Anesth. Pain Med, 2000, vol. 25, rr. 218-222.
- Cook T.M., Counsell D., Wildsmith J.A. W. Major complications of central neuraxial block: report on the Third National Audit Project of the Royal College of Anaesthetists. British Journal of Anaesthesia, 2009, vol. 102, pp. 179-190.
- Ip V.I., Tsui B.C. Novelty without toxicity: a quest for a safer local anesthetic. J Can Anesth, 2011, vol. 58, pp. 8-13.