US 12,420,061 B2
Medical instrument with injection needles
Alain Mariller, Les Monts-de-Corsier (CH)
Assigned to DOC-INVENT SA, Lausanne (CH)
Appl. No. 17/440,556
Filed by DOC-INVENT SA, Lausanne (CH)
PCT Filed Mar. 19, 2020, PCT No. PCT/IB2020/052495
§ 371(c)(1), (2) Date Sep. 17, 2021,
PCT Pub. No. WO2020/188508, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 00357/19 (CH), filed on Mar. 20, 2019.
Prior Publication US 2022/0143364 A1, May 12, 2022
Int. Cl. A61M 25/00 (2006.01)
CPC A61M 25/0084 (2013.01) [A61M 2025/0087 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An instrument for a medical application, the instrument comprising:
a body with a longitudinal axis;
at least one needle;
a channel fluidically connected to the at least one needle to bring a fluid to said at least one needle, the channel comprising a first part and a second part; and
an actuator configured to move said at least one needle between a retracted position inside the body and an extended position protruding from the body, the actuator comprising a shaft, the first part of the channel extending within the shaft, the second part of the channel extending outside the shaft, a movement of the at least one needle between the retracted position and the extended position being performed by a rotation of the actuator and the shaft relative to the body,
wherein the movement of the at least one needle between the retracted position and the extended position is rectilinear and perpendicular to the longitudinal axis,
wherein the shaft includes a first set of teeth, and
wherein said at least one needle includes a support having a second set of teeth cooperating with the first set of teeth.