Minimally invasive scalpel manufacturing method
A manufacturing method and scalpel technology, applied in the field of medical devices, can solve the problems of small abnormal shape, small inner wall diameter, abnormal shape, etc., and achieve fast speed and good effect
Active Publication Date: 2014-08-13
KUNSHAN KERSEN SCI & TECH
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Problems solved by technology
[0004] The outer aluminum sleeve of this minimally invasive scalpel has a small inner wall diameter (5.86MM), and there is still a tolerance, and the inner wall has a spe
Method used
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Embodiment
[0024] Embodiment: A kind of manufacturing method of minimally invasive scalpel, this manufacturing method is based on circular insertion knife 1, collet 2, mandrel 3 and minimally invasive scalpel 4; Described minimally invasive scalpel 4 comprises: outer aluminum tube sleeve 5. Inner sleeve 6, blade 7, strip handle 8 and knife bar 9, one end of the knife bar 9 has a groove 91, the section of the bar knife handle 2 is rectangular, and one end of the bar knife handle 2 is fixed on In the groove 91 of the knife bar 9, the blade 7 is welded to the side of the other end of the bar handle 2;
[0025] The circular slot 1 is provided with several first wire slots 10 and several second wire slots 11 in parallel along its axial direction, and the first wire slots 10 extend from one end surface of the round slot 1 to the circular The middle part of the insertion knife 1 forms several first elastic blades 12, and the second wire passage groove 9 extends from the other end face of the ci...
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Abstract
The invention discloses a minimally invasive scalpel manufacturing method which is based on a round slotting tool, a contracting chuck, an ejection rod and a minimally invasive scalpel. A plurality of first line through grooves and a plurality of second line through grooves are formed in the round slotting tool in the axial direction in parallel. The first line through grooves extend from one end face of the round slotting tool to the middle of the round slotting tool to form a plurality of first elastic blades. The second line through grooves extend from the other end face of the round scalpel to the middle of the round slotting tool to form a plurality of second elastic blades. The manufacturing method includes the following steps: step1 utilizing the contracting chuck to clamp the round slotting tool to form a deformed round slotting tool; step2 arranging the deformed round slotting tool in the step1 into a through hole of an outer aluminum pipe sleeve; step3 placing the ejection rod into the through hole of the outer aluminum pipe sleeve to push the ejection rod to drive the deformed round slotting tool to move. By means of the manufacturing method, small protruding points can be removed cleanly and smoothly, the round slotting tool have certain elastic force and can be in contact with the inner wall of an aluminum pipe at any time, and the small protruding points on the inner wall can be removed to the largest extent.
Description
technical field [0001] The invention relates to the field of medical instruments, in particular to a method for manufacturing a minimally invasive scalpel. Background technique [0002] In the prior art, the blade of the ordinary scalpel is wide and causes great damage to normal tissues, so it is not suitable for minimally invasive surgery. Minimally invasive surgery is welcomed by patients because of less trauma, less pain and faster recovery. However, due to the limitations of equipment and conditions, surgery has high requirements for doctors. [0003] After long-term processing, it was found that the defect rate of the outer aluminum tube sleeve of the minimally invasive scalpel has remained high, and most of the processed parts cannot meet the precision requirements. The main reason is that the extrusion material is poorly fed, and small bumps of 0.05MM~0.1MM often appear on the inner wall of the aluminum agent material. However, this phenomenon cannot be improved in ...
Claims
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Login to View More IPC IPC(8): B23D9/00B23D13/00
CPCB23D9/00B23D13/00
Inventor 徐金根胡庆华
Owner KUNSHAN KERSEN SCI & TECH