JPH0577425B2 - - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical suture needle assembly device for automatically attaching surgical thread to a surgical suture needle.

[0002]

2. Description of the Related Art Many surgical suture needles used in surgical operations have surgical threads attached in advance. However, a wide variety of surgical suture needles are used, and some have a diameter of less than 1 mm, and as the needle size increases, the surgical thread attached becomes thinner.

[0003] Conventionally, there are various methods for attaching surgical thread to a surgical suture needle, but the vertical hole type shown in FIG. 6 is preferred because it is easy to use. Conventionally, the surgical thread S was attached to the vertical hole type suture needle N by hand one by one. At present, the surgical thread S is inserted and the surgical thread S is crimped using a crimping machine.

[0004] Also, if there is a twist in the surgery, etc.
It is difficult not only to do it manually, but even when it is automated.

[0005]

[Problems to be Solved by the Invention] An object of the present invention is to provide a surgical suture needle that eliminates the bending of the surgical thread attached to the surgical suture needle and that allows the surgical thread to be inserted into the hole of the suture needle reliably. An object of the present invention is to provide a suture needle assembly device.

【0006】

[Means for Solving the Problems] A surgical suture needle assembly device according to the present invention for achieving the above-mentioned object is provided with a surgical suture needle assembly device for surgical operation in a hole drilled from the rear end of the surgical suture needle toward the distal end. In a device for inserting and caulking a thread, while the surgical thread is being fed out,
The present invention is characterized in that a heater is provided for inserting the surgical thread and correcting the crookedness of the surgical thread by heating.

[0007]

[Operation] The surgical suture needle assembly device having the above-mentioned configuration corrects the crookedness by heating during the process of supplying the surgical thread.

[0008]

Embodiments The present invention will be explained in detail based on illustrated embodiments. In FIG. 1, reference numeral 1 denotes a caulking mechanism for caulking the suture needle N, in which dies 1a to 1d (1d is not shown) move toward the center from four directions around the periphery. The suturing needle N can caulk the rear end Na from two directions facing each other. Also, these dice 1a~
1d are micrometers 1e to 1h (1h
(not shown) allows the stroke to be adjusted. The suture needle N is fixed to, for example, a workpiece W, and the workpieces W are transported one by one by a transport mechanism 2 using, for example, a guide table, to a rear end portion provided with a hole Nb for inserting the surgical thread S.
Na is located between the dies 1a to 1d of the crimping mechanism 1. Further, the first guide section 3 for guiding the surgical thread S is shaped like a thin tube, and its distal end section 3a is positioned at a position where the axis can be aligned with the rear end section Na of the suture needle N being conveyed, so that it can come into almost close contact with it. The insertion direction of the surgical thread S of this first guide portion 3 is shaped like a tangle so that the surgical thread S can be easily inserted.

[0009] In addition, the surgical thread S is wound around a bobbin 4, and according to the order in which it is fed out, a disinfection container 5 containing a disinfectant solution, a sponge 6 for wiping off the disinfectant solution, and a curvature of the surgical thread S are corrected. It passes through, for example, a thin tube-shaped heater 7 for heating, is sent by a feed roller 8, and is further fed into the first guide section 3 through a second guide section 9. Also, the first
A cutting mechanism 10 such as scissors or a knife for cutting the surgical thread S to a predetermined length is provided between the guide section 3 and the second guide section 9.

[0010] The surgical thread S is unwound from the bobbin 4 as necessary, and in the process, it is disinfected with a disinfectant solution in a disinfection container 5, and heated to a temperature of, for example, 130 to 140°C by a heater 7 using an electric heating coil. By passing through the inside, the curves are corrected.
Note that the temperature of the heater 7 needs to be set according to the thickness and material of the surgical thread S.

[0011] After correction by the heater 7, the surgical thread S is paid out in the direction of the caulking mechanism 1, but at this time, as shown in FIG. It is positioned so as to match the tip 3a of No.3. Therefore, when the surgical thread S is fed by the feed roller 8, the surgical thread S passes through the first guide portion 3 and enters the hole Nb of the suture needle N. In this state, the dies 1a to 1d are moved in the vertical and horizontal directions to caulk the rear end Na of the suture needle N as shown in FIG.

[0012] The suture needle N with the surgical thread S caulked in this way is sent as it is by the transport mechanism 2 in the direction of pulling out the surgical thread S, and after moving a predetermined distance, the surgical thread S is cut by the cutting mechanism 10. be done. At this time, before or after the surgical thread S is cut, by holding the surgical thread S and moving the workpiece W with a constant force, it is examined whether the surgical thread S will come out of the suture needle N. Note that the surgical thread S is cut diagonally with respect to the longitudinal direction of the surgical thread S. Next, the surgical thread S is fed into the first guide section 3 and into the hole Nb of the suture needle N. Easy to insert.

[0013] By repeating such steps, the surgical thread S is automatically attached to the suture needle N, so that the work can be performed extremely efficiently and reliably. In addition, in the process of feeding out the surgical thread S, by straightening the surgical thread S with the heater 7, there is no bending, and the surgical thread S can be inserted smoothly into the first guide section 3 and the hole Nb of the suture needle N. You can perform various insertions.

[0014] FIG. 4 shows another embodiment of the first guide section 3, in which a cutting section 3b consisting of a gap is obliquely provided in the middle of the guide section 3 consisting of a long cylindrical section.
The cutting mechanism 10 is activated at point b. By doing this, the cut end of the surgical thread S does not come out, so by feeding it as it is, it is ensured that the end of the surgical thread S
The surgical thread S can be inserted into the hole Nb of the suture needle N from a.

[0015] FIG. 5 also shows a two-part positioning mechanism 11 that wraps around the distal end 3a of the first guide section 3, and this positioning mechanism allows the rear end of the suture needle N to be
By also sandwiching Na, the leading end 3a and the rear end Na are accurately positioned, and the surgical thread S can be inserted reliably. Note that when caulking the surgical thread S after insertion, the positioning mechanism 11 is retracted from the caulking stop portion.

[0016] Among the above-mentioned mechanisms, mechanisms related to the size and thickness of the suture needle N and surgical thread S, such as the guide portions 3 and 9, naturally change to an appropriate size when the thickness of the surgical thread S changes. It is necessary to replace it with a new mechanism. In this case, the mechanism can be replaced as is, or only some parts within the mechanism can be replaced.

[0017] In the example, dice 1a to 1d
is used to simultaneously caulk from four directions, but this may be performed at different times in two directions.
Alternatively, two dies may be used to caulk once, then rotated by 90 degrees with respect to the suture needle N, and caulked again from the orthogonal direction. Furthermore, you can use 3 or 5 dice and play in 3 or 5 directions at the same time.
It is also possible to operate from the direction.

[0018] Note that the surgical thread S can also be fed out by jetting an air stream along the surgical thread S from an air nozzle without using the feed roller 8 as in the embodiment. Further, the surgical thread S can be cut at the same time as the caulking or before the caulking.

[0019]

Effects of the Invention As explained above, the surgical suture needle assembly device according to the present invention corrects the crookedness of the surgical thread when paying out the surgical thread, thereby ensuring that the surgical thread is properly aligned with the hole of the suture needle. This will further improve yield.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram.

FIG. 2 is an explanatory diagram of the action of the caulking part.

FIG. 3 is a cross-sectional view of the surgical thread attached to the suture needle.

FIG. 4 is a sectional view of the guide section.

FIG. 5 is a perspective view of the positioning mechanism.

FIG. 6 is a plan view of a suture needle with surgical thread attached.

[Explanation of symbols]

1...Caulking mechanism 2... Conveyance mechanism 3,9...Information department 4...Bobbin 5...Disinfection container 6...Sponge 7... Heater 8...Feed roller 10... Cutting mechanism 11...Positioning mechanism W...work.

Claims (1)

[Claims] 1. A device for inserting and caulking a surgical thread into a hole drilled from a rear end of a surgical suture needle toward a distal end, the surgical thread being inserted into the hole while the surgical thread is being fed out. A surgical suture needle assembling device characterized in that a heater is provided for correcting the crookedness of the surgical thread by heating.