Huber-point needle

Description

Hypodermic needle (needle which enters the skin)

Non coring type needle with a transversely curved wall and side hole giving it a long, sharp, curved tip. Differs from a typical needle where the opening of the needle is at the tip of the needle itself

• Physical examination is normal
• Aetiology is unknown but patients usually have a normal life span
• Also referred to as “Effort Syndrome” as symptoms resemble those of fatigue following effort in healthy individuals

History

• Originally described in 1946 by Ralph Huber
• Continuation of Huber’s hypodermic needle invention from 1943
• Designed to reduced pain when injecting local anaesthetic for dental procedures

• Physical examination is normal
• Aetiology is unknown but patients usually have a normal life span
• Also referred to as “Effort Syndrome” as symptoms resemble those of fatigue following effort in healthy individuals

Associated Persons

• Edward Boyce Tuohy (1908-1959)
• Ralph L Huber (1890-1953)

• Physical examination is normal
• Aetiology is unknown but patients usually have a normal life span
• Also referred to as “Effort Syndrome” as symptoms resemble those of fatigue following effort in healthy individuals

Alternative names

• Tuohy Needle

• Physical examination is normal
• Aetiology is unknown but patients usually have a normal life span
• Also referred to as “Effort Syndrome” as symptoms resemble those of fatigue following effort in healthy individuals

Controversies

Although Huber patented the needle he did not publish any papers demonstrating its use. In 1945 Edward Boyce Tuhoy used Huber’s needle design for placement of spinal catheters.Tuhoy described his needle with the Huber point prior to Hubers description of this in 1946- how this came to be is unclear. One theory suggests that Tuhoy may have encountered Huber’s inventions during his time in the military as many of Huber’s inventions were offered to the US Army during the War

• Physical examination is normal
• Aetiology is unknown but patients usually have a normal life span
• Also referred to as “Effort Syndrome” as symptoms resemble those of fatigue following effort in healthy individuals

References

• Huber RL. Hypodermic needle. US patent 2 409 979. October 22, 1946
• Curbello MM. Continuous Peridural Segmental Anesthesia by Means of a Ureteral Catheter. Curr Res Anesth Analg. 1949 Jan-Feb;28(1):13-23.
• Lubisich JW. Ralph L. Huber, DMD: forgotten inventor of the “Tuohy” needle. J Hist Dent. 2004 Jul;52(2):75-9.
• Frölich MA, Caton D. Pioneers in epidural needle design. Anesth Analg. 2001; 93(1): 215-20