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Year : 2021  |  Volume : 15  |  Issue : 1  |  Page : 16

Surgical pearl: Noncorrosive chemical fountain pen for cautery

Mukhtar Skin Centre, Katihar, Bihar, India

Date of Submission22-Dec-2020
Date of Decision08-Feb-2021
Date of Acceptance02-Mar-2021
Date of Web Publication30-Mar-2021

Correspondence Address:
Dr. Muhammed Mukhtar
Mukhtar Skin Centre, Katihar Medical College Road, Katihar - 854 105, Bihar
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/tjd.tjd_128_20

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How to cite this article:
Mukhtar M. Surgical pearl: Noncorrosive chemical fountain pen for cautery. Turk J Dermatol 2021;15:16

How to cite this URL:
Mukhtar M. Surgical pearl: Noncorrosive chemical fountain pen for cautery. Turk J Dermatol [serial online] 2021 [cited 2021 Jun 13];15:16. Available from: https://www.tjdonline.org/text.asp?2021/15/1/16/312458


Chemical cauterization is done with caustic agents to destroy skin lesions. To simplify this procedure, its applicators such as micropipette and syringe outlet are stuffed with a cotton wick for better flow of chemical due to capillary action.[1],[2] However, this chemical has a corrosive effect on the needle and on the rubber cap of the piston which causes leakage on storing the chemical for more than 1–2 month. The cauterization with an insulin syringe is little bit time consuming, cumbersome, and needs balance during the procedure.[3] A modified ball pen is described as a better alternative option for safe and precise cauterization of skin lesions.

To procure this pen, an empty polytube refill of ball pen is used as a chemical cartridge and a wicked micropipette tip as a nib. For capillary action, the cotton wick is inserted and packed in the micropipette tightly from its proximal end [Figure 1]a. Following this, the proximal part of the micropipette is cut and fit and fixed it tightly over the refill polytube with cyanoacrylate glue. The polytube is refilled with chemical agents with help of a disposable syringe [Figure 1]b. After this, the proximal part of the tube is packed with Vaseline and a small cotton wick to control the flow and the leak of the chemical agents. This chemical refill tube is set in the ball pen body for chemical cauterization. The spot size depends on the angle of holding the pen during chemical cauterization [Figure 1]c. Its tip can be trimmed or dipped in chemical after using it on a patient. On getting cotton wick loose in the tip, a small wick of cotton is inserted and packed with a snipped hypodermic needle from the tip end. The refill polytube and micropipette both are noncorrosive, and the chemical does not leak from the refill on storing it for the long term. About 0.5–0.7 ml chemical agent can be refilled in the polytube. Once it is refilled, it can be used on a number of patients (about 10–15) depending on the number and size of the lesions. Thus, a polytube as a chemical refill and a wicked micropipette as a nib are the good options for chemical cautery in office. It is handy and can be carried out like a fountain pen.
Figure 1: (a) A disposable micropipette is wicked with cotton for capillary action with a ball pen body. (b) The chemical agent is drawn in the polytube refill with help of a syringe. (c) The chemical pen and its variable spots size depending on the angle of holding the pen

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There are no conflicts of interest.

  References Top

Jangra RS, Gupta S, Gupta S, Dr A. Chemical cautery pen. J Am Acad Dermatol 2020;82:e193-4.  Back to cited text no. 1
Mukhtar M. Disposable syringe for chemical cautery. J Am Acad Dermatol 2020;Apr 23;S0190-9622(20)30695-2. doi: 10.1016/j.jaad.2020.03.120. Online ahead of print.  Back to cited text no. 2
Malhotra AK, Gupta S, Sugandhan S, Sharma VK. Use of insulin syringe for chemical cauterization. Dermatol Surg 2007;33:1537-8.  Back to cited text no. 3


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