Surgical instrument

Abstract

A surgical instrument comprising a shaft (1) on which a first handle (3) is formed, a pushing part (2) which is actuated by a second handle (4), and a force accumulator for returning the pushing part (2), wherein the force accumulator and the pushing part (2) are integrally formed.

Claims

1. A surgical instrument, comprising: a shaft (1) on which a first handle (3) is formed; a sliding part (2) which is actuated by a second handle (4) to move from a first position to a second position; and a force accumulator for returning the sliding part (2) to the first position, wherein the force accumulator is a bow (5) formed integrally at one end on the sliding part (2), wherein the bow (5) and the second sliding part (2) are a single piece such that there are no dead spaces.

2. The surgical instrument as claimed in claim 1, wherein the second handle (4) has a holding area (6) at one end.

3. The surgical instrument as claimed in claim 2, wherein the holding area (6) comprises finger depressions (7).

4. The surgical instrument as claimed in claim 2, wherein the second handle (4) has, at the other end, a recess (8) for coupling to the sliding part (2).

5. The surgical instrument as claimed in claim 1, wherein the second handle (4) forms a hook-in pin (9) for coupling to the shaft (1).

6. The surgical instrument as claimed in claim 5, wherein the hook-in pin (9) is non-circular.

7. The surgical instrument as claimed in claim 6, wherein the sliding part (2) has a stub (12), which is introduced into the recess (8).

8. The surgical instrument as claimed in claim 5, wherein the shaft (1) has a hook-in recess (10) for receiving the hook-in pin (9).

9. The surgical instrument as claimed in claim 8, wherein, in the area of the hook-in recess (10), a passage (11) is present in the shaft (1), such that the second handle (4) protrudes into the shaft (1) in such a way that the recess (8) can be coupled to the sliding part (2) located in the shaft (1).

10. The surgical instrument as claimed in claim 1, wherein the bow (5) is operatively connected to a limit stop (13) on the shaft (1), wherein the bow (5) returns the second handle (4) away from the first handle (3).

11. The surgical instrument as claimed in claim 1, wherein the first handle (3) has a limit stop (13), and wherein the bow (5) terminates in an end which engages with limit stop (13).

12. A method for dismantling a surgical instrument comprising a shaft (1) on which a first handle (3) is formed; a sliding part (2) which is actuated by a second handle (4) to move from a first position to a second position; and a force accumulator comprising a bow (5) formed integrally at one end on the sliding part (2) for returning the sliding part (2) to the first position, wherein the bow (5) and the second sliding part (2) are a single piece such that there are no dead spaces, comprising the following steps: laterally pressing away the sliding part (2) from the shaft (1); pulling the second handle (4) from the shaft (1); and removing the released sliding part (2) from the shaft (1).

13. A surgical instrument, comprising: a first piece having a shaft (1) on which a first handle (3) is formed; a second piece having a sliding part (2) which is movable relative to the shaft (1) between a first position and a second position, and having a force accumulator for returning the sliding part (2) relative to the shaft (1) from the second position to the first position, wherein the force accumulator is a bow (5) formed integrally at one end of the sliding part (2), wherein the bow (5) and the second sliding part (2) are a single piece such that there are no dead spaces; and a third piece having a second handle (4) which is movable relative to the first handle (3) and which is engaged with the first piece and the second piece to move the sliding part (2) from the first position to the second position when the second handle (4) is moved toward the first handle (3), and wherein the third piece engages the first piece and the second piece to hold the first piece, the second piece and the third piece together.

14. The surgical instrument as claimed in claim 13, wherein releasing the third piece from the second piece allows the first piece, the second piece, and the third piece to be separated from each other.

15. The surgical instrument as claimed in claim 13, wherein the sliding part (2) and the bow (5) are a single piece part with no mechanical fasteners or joins there between.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further advantages, features and details of the invention are set forth in the following description of preferred illustrative embodiments and in the drawings, in which:

(2) FIG. 1 shows a side view of a litz wire cutter according to the invention;

(3) FIG. 2 shows a side view of a litz wire cutter according to the invention;

(4) FIG. 3 shows a side view of a first part of a litz wire cutter according to the invention;

(5) FIG. 4 shows a plan view of the part according to FIG. 3;

(6) FIG. 5 shows a side view of a second part of a litz wire cutter according to the invention;

(7) FIG. 6 shows a plan view of the part according to FIG. 5;

(8) FIG. 7 shows a side view of a further part of a litz wire cutter according to the invention.

DETAILED DESCRIPTION

(9) A litz wire cutter P is shown in the position of use in a side view in FIG. 1. The litz wire cutter P is composed of a shaft 1, on which a first handle 3 is integrally formed.

(10) A sliding part 2 is also present. The figure shows the sliding part 2 pushed into the shaft 1.

(11) A second handle 4 is also shown. At one end, the second handle 4 has a holding area 6. The holding area 6 in turn consists in part of finger depressions 7.

(12) A bow 5 is formed integrally on one end of the sliding part 2. The bow 5 protrudes substantially at right angles from the sliding part 2.

(13) The second handle 4 has, at the other end, a recess 8 for coupling to the sliding part 2, which recess 8 can be seen better in FIG. 2.

(14) In addition, the second handle 4 has a hook-in pin 9 for coupling to the shaft 1. The hook-in pin 9 is shown pushed into a hook-in recess 10 of the shaft 1.

(15) In the area of the hook-in recess 10, a passage 11 is present in the shaft 1. This passage 11 can be seen particularly clearly in FIG. 6. The second handle 4 protrudes into the shaft 1 in such a way that the recess 8 can be coupled to the sliding part 2 located in the shaft 1. The coupling of the second handle 4 is effected by the sliding part 2 having a stub 12 that can be introduced into the recess 8. The configuration of the stub 12 can be seen particularly clearly in FIGS. 3 and 4.

(16) The sliding part 2 is shown in a side view in FIG. 3. A cutting edge (not indicated) is present at the other end from the bow 5. FIG. 4 shows that the sliding part 2 is configured in the shape of a question mark, wherein the stub 12 is formed in a recessed area of the sliding part 2.

(17) FIG. 5 shows a side view of the shaft 1. A limit stop 13 is present at the transition between the area of the hook-in recess 10 and the first handle 3. The limit stop 13 serves as force anchor for the bow 5 of the sliding part 2.

(18) In addition to the passage 11 present in the area of the hook-in recess 10, FIG. 6 also shows how the shaft 1 is configured as a U-shaped profile approximately over a third of its surface area. The configuration as a U-shaped profile allows the sliding part 2 to be mounted with better mobility while still being stable.

(19) FIG. 7 shows how the opening 8 introduced at the end is formed on the second handle 4. From the opening 8 toward the finger depressions 7, the hook-in pin 9 is once again shown.