JPS6238647Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an attachment for interconnecting cylindrical parts that can be disassembled for each function to a laser device such as a laser processing machine or a laser scalpel.

The configuration of the handpiece section at the tip of the optical waveguide of a laser device, such as a laser scalpel, consists of a handpiece section A, a lens holder section B, and a tip adapter section C, as shown in Figure 1. Therefore, it is necessary to attach focusing lenses with different focal points, tip adapter parts with different shapes, etc. For this reason, the handpiece section is divided into three parts, each of which can be attached or detached by screwing, and can be replaced. However, the connection method using screws requires at least several rotations to complete attachment or detachment, and therefore has the disadvantage that replacing the lens holder section B and adapter section C is time-consuming. Therefore, it is not possible to shorten the surgical time.

The object of the present invention is to provide an attachment with a simple structure that allows the mutual attachment and detachment of the respective cylindrical parts of a laser device that is divided into several parts, reliably, easily and quickly.

The structure of the present invention to achieve this purpose is as follows:
In an attachment for a laser device that is divided into a plurality of cylindrical parts, one of the connecting cylindrical parts has an introduction part extending inward from the connection end surface, and a locking part in which the introduction part is folded back toward the connection end surface. an engaging groove having a shape of 10 mm, an engaging pin that engages with the engaging groove on the other connecting cylindrical part, and a spring that causes the connecting cylindrical parts to separate from each other when the connecting cylindrical parts are fitted. A cylindrical cover with a built-in cylindrical cover is provided on one of the connecting cylindrical parts.

The configuration of the present invention will be described in detail below based on an embodiment shown in the drawings. In this embodiment, an attachment used in a handpiece portion of a laser scalpel will be exemplified.

The handpiece section at the tip of the optical waveguide of the laser scalpel consists of a handpiece joint section A, a lens holder section B, and a tip adapter section C, as shown in the figure. These connecting cylindrical parts A, B and C are connected by attachments formed at each end.

The attachment consists of an engaging groove 1, an engaging pin 2 that is caught in the engaging groove 1, and a cover 3 that separates both connecting members from each other. According to the embodiment shown in FIG. 2, an engagement pin 2 is provided on the handpiece joint A side to join the handpiece joint A and the lens holder B, while an engagement groove 1 and a cover are provided on the lens holder B side. 3, and for joining the lens holder part B and the tip adapter part C, an engaging pin 2 and a cover 3 are provided on the lens holder part B side, and an engaging groove 1 is provided on the tip adapter part C side. It is desirable that at least two pairs of the engagement groove 1 and the engagement pin 2 are provided symmetrically so that the axis of the optical waveguide does not deviate. but,
Of course, a pair can be used as long as the connection ends are accurately fitted.

As shown in FIG. 3, the engagement groove 1 is connected to an insertion portion 1a that extends inwardly from the end surface of the connecting tubular component, and is folded back in the opposite direction, that is, toward the connecting end surface. and a locking part, and an engaging pin 2 provided on the other connecting part.
prevent movement in the circumferential direction. Although the insertion portion 1a of the engagement groove 1 in this embodiment is inclined with respect to the axis of each connecting member, it may extend parallel to the axis. In short, the insertion portion 1a extends backward from the end surface of the connecting member, and the locking portion 1b is connected to the insertion portion 1a.
It suffices if they extend in opposite directions, even if only by a small amount. When configuring the engagement groove 1 in an L shape, it is necessary to press and rotate one of the connecting members, but in the case of this embodiment, the engagement pin 2 can be moved to the locking portion by only relative rotation of the connecting member. 1b.

On the other hand, the engagement pin 2 is formed to protrude in the radial direction from the peripheral surface of the cylinder wall of the handpiece joint A or the lens holder B. Its protruding position corresponds to the engagement groove 1 and is located beyond the turning point of the groove 1.

Further, a cylindrical cover 3 is installed in the lens holder portion B to separate the connected cylindrical parts from each other by fitting the engagement pin 2 into the engagement groove 1. The cover 3 is installed so as to be movable only in the axial direction without rotating by means of a sliding key 5 housed in a guide groove 4 formed in the lens holder part B, and is moved by a built-in spring 6. Then, push back the other connecting member, that is, the handpiece joint A and the tip adapter C, which have been pushed in.

Therefore, the engagement pin 2 of the handpiece joint A is inserted into the introduction part 1a of the engagement groove 1 of the lens holder part B.
If the lens holder part B is pushed in and relatively rotated after the lens holder part B is positioned at The engagement pin 2 is driven into the stop portion 1b. The handpiece joint A and the lens holder B, which are about to be separated by the action of the cover 3, are reliably connected by the engagement of the engagement pin 2 with the engagement portion 1b of the engagement groove. That is, the engagement pin 2 is pressed against the abutting portion of the engagement groove 1 and is restrained. In addition, these disassemblies are performed by disassembling the handpiece joint part A from the anti-lens holder part B.
Push the engagement pin 2 to the side and rotate it to the locking part 1.
This is done by letting it escape from b and pulling it out into the introduction section 1a. Incidentally, the connection and disassembly of the lens holder part B and the tip adapter part C are performed in the same manner.

According to the embodiments described above, the handpiece joint A
Although the lens holder portion C is provided with the engaging pin 2, the lens holder portion B and the tip adapter portion C may also be provided with the engaging pin 2. Further, the cover 3 is not limited to the above embodiment, and may be installed on any member. Furthermore, the engagement pin 2 may also be made to protrude toward the inner circumferential surface instead of toward the outer circumferential surface.

As described above, the present invention provides an engaging pin on one connecting cylindrical part of a laser device configured to be separable, and allows the engaging pin to move in the axial and circumferential directions on the other connecting cylindrical part. Since it is provided with an engagement groove to prevent the engagement pin from moving relative to the engagement pin in the counter-introduction direction, the engagement pin of one connection cylindrical part is inserted into the engagement groove of the other connection cylindrical part. When the engaging pin passes from the introduction part to the locking part, the engaging pin is automatically pressed against the abutting part of the engaging groove by the elastic force of the spring inside the cover. Fixed. Thus, the laser device can be attached with a one-touch operation by simply pushing the connecting cylindrical parts together and rotating them relative to each other. Also, during disassembly, push the connecting cylindrical parts on both sides, rotate one connecting cylindrical part, move the engaging pin from the locking part to the introduction part, and then the restoring force of the cover will cause the engaging pin to move It is easy because it tries to be pushed out. Therefore, for example, in a laser scalpel that is divided into three parts, the lens holder part and the tip adapter part can be easily and quickly replaced depending on the surgical method and surgical site, contributing to shortening the surgical time. Furthermore, the structure of the attachment is extremely simple as it utilizes the engagement of a pin and a groove.

[Brief explanation of drawings]

Fig. 1 is a schematic front view of the handpiece portion of a laser scalpel, Fig. 2 is a vertical cross-sectional view cut through the center showing the connection structure of the handpiece portion of a laser scalpel to which the attachment of the present invention is applied, and Fig. 3 is an attachment of the same embodiment. It is a schematic perspective view of a part. In the drawings, 1 is an engagement groove, 2 is an engagement pin, 3 is a cover, 4 is a guide groove, 5 is a sliding key, and 6 is a spring.

Claims (1)

[Scope of utility model registration request] In an attachment for a laser device that is divided into a plurality of cylindrical parts, one of the connecting cylindrical parts has an introduction part extending inward from the connection end surface, and a locking part in which the introduction part is folded back toward the connection end surface. an engaging groove having a shape of 10 mm, an engaging pin that engages with the engaging groove on the other connecting cylindrical part, and a spring that causes the connecting cylindrical parts to separate from each other when the connecting cylindrical parts are fitted. An attachment for laser equipment, characterized in that a cylindrical cover with a built-in cylindrical cover is provided on one of the connecting cylindrical parts.