Bloodletting Instruments in the National Museum of History and Technology

by Audrey B. Davis; Toby A. Appel

Spring lancets (2) with case, 19th century. Wood case, covered with brown leather and lined with brown velvet, has space for two rectangular lancets. One brass lancet, knob end, does not belong with the set. It has a steel lever release and three settings for blade height. The rectangular lancet, also made of brass, with an iron lever release and three settings for the height of the blade, is unusual in that it is triggered by a slide catch on the facing side rather than by a lever on top. The set was owned by Dr. Charles W. Owen of Maryland (1823-1857). Donated by the Medical and Chirurgical Faculty of Maryland 1976. Rectangular lancet: L 50 mm, W 16 mm. Knob end lancet: L 42 mm, W 18 mm. Case: L 150 mm, W 34 mm, H 22 mm. NMHT 302606.058.

Spring lancet with case, 19th century. Lancet and case are similar to NMHT 302606.039. The leather of the case is torn and the lancet blade is broken. Donated by the Medical and Chirurgical Faculty of Maryland 1976. Lancet: L 42 mm, W 22 mm. Case: L 66 mm, W 38 mm, H 24 mm. NMHT 302606.061.

Spring lancet with case, 19th century. The Conservation Analytical Laboratory found the lancet to be made of a silver-copper alloy with an iron or steel lever release. It has a border around the top and along the edge and is marked “Reinhardt & C^o/Balt^o.” Case is covered with black leather and lined in pink plush. It is decorated by a gold border and a small scroll motif. Donated by Harry L. Schrader 1972. Lancet: L 42 mm, W 21 mm. Case: L 68 mm, W 34 mm, H 20 mm. NMHT 302607 (M-14682).

Spring lancet with case, late 19th-early 20th century. Lancet is similar to the preceding lancet. It is made of white metal[B] (probably silver-copper) and has a border decoration along the top and around the edge. Case, which is badly rotted from water damage, is a folding style case and is closed by a clasp. There is a pocket for extra blades. Donated by John and James Draper 1973. Lancet: L 42 mm, W 21 mm. Case: L 74 mm, W 40 mm, H 18 mm. NMHT 304826.067.

Spring lancet with case, late 19th-early 20th century. Brass knob end lancet with brass lever release. Case is covered with brown leather and lined with chamois. Case is stamped “Traunichtessticht” (See NMHT 145365 [M-4510]). Owned by Dr. F. L. Orsinger of Chicago (1852-1925). Donated by Dr. William Orsinger 1973. Lancet: L 43 mm, W 22 mm. Case: L 70 mm, W 30 mm, H 20 mm. Neg. 74-4088 (BW & CS); 76-13535 (BW), interior view of spring mechanism. NMHT 308730.10. (Figures [7], [39].)

Spring lancet with case, 19th century. Brass Lancet with steel lever release. Leather of case is water damaged and is stamped “Traunichtessticht.” Latch is missing. Donated by Peter H. Smith Jr., 1975 Lancet: L 50 mm, W 25 mm (w/ blade extended), H 15 mm. Case: L 75 mm, W 42 mm, H 23 mm. NMHT 316508.01.

Spring lancet with case, 18th-early 19th century. Wooden case has a hand-carved space for lancet. Lancet is brass and has an unusual boot shape. The short lever release operates a catch at the very top of the lancet casing. The large blade has a guard that is regulated by a screw on the side. Purchased 1976. Lancet: L 35 mm, W 24 mm. Case: L 68 mm, W 33 mm, H 20 mm. Neg. 76-9114 (BW). NMHT 316478. (Figure [46].)

Spring lancet, late 18th-early 19th century. Unusually shaped large brass and steel spring lancet, nicely decorated and engraved with the name “M. A. Prizzi.” Lancet is set by a slide cocking lever on the facing side and released by another lever. A brass plate at the top of the lancet can be moved back and forth by a screw in order to regulate the depth of cut of the lancet blade. Lancet comes with a spare blade. Purchased 1975. Lancet: L 86 mm. Neg. 76-7763 (BW, CS). NMHT 320033.06. (Figure [45].)

Spring lancet with case, 19th century. Lancet is brass with a steel lever release and has a zig-zag decoration on the front and back panels. Case is covered with brown leather and lined with chamois and has a small basket of flowers stamped on the top. Purchased 1976. Lancet: L 42 mm, W 19 mm. Case: L 71 mm. W 34 mm. H 19 mm. Neg. 73-4236 (BW & CS). NMHT 321636.01. (Figure [6].)

Spring lancet, 19th century. Lancet is engraved “F. D.” on back (see NMHT 302606.008). Analysis by the Conservation Laboratory shows that the lancet is made of brass composed of 70% copper and 30% zinc plated with a tin-lead alloy. Most of the plating has been rubbed away. The blade, cocking lever, and release lever are of iron or steel. Purchased 1976. Lancet: L 43 mm. W 21 mm. NMHT 321636.02.