CN103860219B - The nail bin of medical linear groove part cutter - Google Patents

Abstract

Present invention is disclosed a kind of nail bin of medical linear groove part cutter, comprise nail bin face and a sidewall, described nail bin face is run through along the axis of nail bin and is provided with a tool slot, what the both sides of described tool slot were respectively provided with at least two row puts nail, put in nail described in suturing nail for coincideing is placed in, the described vertical described nail bin face of nail of putting is recessed and run through described nail bin, described nail of putting comprises medial launder and the first wall, second wall, described first wall opposite second walls is near the sidewall of described nail bin, described first wall is less than the distance of described second wall to medial launder axis to the distance of medial launder axis.Beneficial effect of the present invention is mainly reflected in: the first wall putting nail near nail bin sidewall does thin, second wall does thick relatively, keep the width putting the overall cross sectional dimensions of nail and nail bin constant, but add the machinable thickness of nail bin sidewall simultaneously, overcome the defect of nail bin sidewall not easy-formation.

Description

Staple cartridge for medical linear sewing cutter

technical field

The invention relates to a medical stapling device, in particular to a staple cartridge of a medical linear slit cutter, which belongs to the technical field of medical instruments.

Background technique

Medical linear suture cutters are widely used for wound suturing, internal tissue suturing and cutting. A typical medical linear sewing cutter, as disclosed in US Pat. No. 5,129,570, has two functions of suturing and cutting at the same time, that is, excess tissue is excised while suturing the wound. This type of medical linear seam cutter generally includes two upper and lower jaws, an anvil and a staple bin that are relatively arranged at the far ends of the upper and lower jaws, and a closing handle for closing the upper and lower jaws; There is a pusher rod that can move simultaneously along the axis of the instrument and a pusher rod with a cutter at the far end. Both the pusher rod and one end of the pusher rod are arranged on a slider; the surface of the staple cartridge A number of nail holes are arranged along the axis of the instrument, and each nail hole is provided with a pusher piece and a staple; the movement of the slider drives the pusher rod to sequentially push the pusher piece and push the staple toward the The nail anvil is formed on the tissue to be sutured, and drives the cutting knife to cut or incision the tissue between the nail cartridge and the nail anvil.

Chinese patent CN201120435922.7 discloses a staple cartridge of a medical linear slit cutter, which includes a staple cartridge surface, and a knife groove runs through the nail cartridge surface along the axis of the staple cartridge. There are a number of nail-setting holes arranged in rows on each side, and the staples used for anastomosis are placed in them. Generally, two or three rows of nail-setting holes are provided on both sides of the knife groove. But because the area of the nail bin surface is not large originally, after being provided with multiple rows of nail holes on it, it will cause difficulty in forming the nail bin.

Contents of the invention

The object of the present invention is to solve the above-mentioned technical problems, and to propose an easy-to-process staple cartridge for a medical linear slit cutter.

The purpose of the present invention will be achieved through the following technical solutions:

A staple cartridge of a medical linear sewing cutter, comprising a staple cartridge surface and a side wall, the staple cartridge surface is provided with a cutting groove along the axis of the staple cartridge, and the two sides of the cutting groove are respectively provided with There are at least two rows of staple holes, and the staple holes for anastomosis are placed in the staple holes. The staple holes are recessed perpendicular to the surface of the staple cartridge and run through the staple cartridge. The staple holes include The middle groove, the first wall, and the second wall, the first wall is closer to the side wall of the nail cartridge relative to the second wall, and the distance from the first wall to the axis of the middle groove is smaller than the distance from the second wall to the axis of the middle groove distance.

Preferably, the side wall of the staple cartridge is the outer wall and/or the knife groove wall of the staple cartridge perpendicular to the surface of the staple cartridge.

Preferably, a nail pushing piece matching the cross section of the nail setting hole is provided in the nail setting hole.

The beneficial effects of the present invention are mainly reflected in that the first wall of the nail hole near the side wall of the nail cartridge is made thinner, and the second wall is relatively thicker, so that the overall cross-sectional size of the nail hole and the width of the nail cartridge remain unchanged, but At the same time, the machinable thickness of the side wall of the nail bin is increased, and the defect that the side wall of the nail bin is not easy to be formed is overcome.

Description of drawings

Fig. 1 is the front view of the staple cartridge of the medical linear sewing cutter of the present invention;

Fig. 2 is an enlarged view of part A in Fig. 1 .

detailed description

The invention discloses a medical linear seam cutter, comprising: upper and lower jaws that can be closed or opened mutually, an anvil and a nail magazine that are oppositely arranged at the far ends of the upper and lower jaws, and a nail magazine for closing the upper and lower jaws. Closing handle for lower jaw.

The proximal end of the upper jaw is an anvil shell, and the staple cartridge is arranged in the staple cartridge frame at the distal end of the lower jaw. As shown in FIG. 1 and FIG. 2 , the staple cartridge 10 includes a staple cartridge surface 1 and They are arranged on both sides of the staple cartridge surface and are perpendicular to the outer wall 2 of the staple cartridge surface 1 . A knife groove runs through the staple cartridge surface 1 along the staple cartridge axis, and the knife groove wall 3 and the outer wall 2 of the staple cartridge are referred to as side walls in the present invention. Both sides of the knife groove are provided with a number of nail holes 4 arranged in rows, and the nail pushers and staples for anastomosis are placed in the nail holes 4. Generally, both sides of the knife groove are respectively provided with Two or three rows of nail holes. In this embodiment, three rows of nail holes are respectively provided on both sides of the knife groove.

The nail setting hole 4 is recessed perpendicular to the nail cartridge surface 1 and runs through the nail cartridge. The nail setting hole 4 includes a middle groove 41, a first wall 42, and a second wall 43, and the first wall 42 is opposite to the nail cartridge. The second wall 43 is close to the side wall of the nail cartridge, the second wall 43 is far away from the side wall of the nail cartridge relative to the first wall 42, and the distance from the first wall 42 to the axis of the middle groove 41 is smaller than the first wall 42. The distance from the second wall 43 to the axis of the middle groove 41.

For example in detail, when the first wall 42 of the nail hole 4 is close to the outer wall 2 of the nail cartridge relative to the second wall 43, and the second wall 43 is far away from the outer wall 2 of the nail cartridge relative to the first wall 42, then the first The wall 42 has a shorter distance from the second wall 43 to the axis of the middle groove 41 . When the first wall 42 of the nail setting hole 4 is close to the knife groove wall 3 relative to the second wall 43, and the second wall 43 is far away from the knife groove wall 3 relative to the first wall 42, then the first wall 42 is relatively The distance from the second wall 43 to the axis of the middle groove 41 is short. In this way, the thickness of the side wall of the staple cartridge can be relatively thickened, which overcomes the defect that the side wall of the staple cartridge is not easy to form; and also keeps the overall cross-sectional size of the nail hole and the width of the staple cartridge unchanged. Certainly, the nail pushing piece matching the cross section of the nail setting hole is provided in the nail setting hole, so as to ensure smooth sewing.

The structure of the present invention is simple and effective, and is worth popularizing.

There are still many implementations in the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims (3)

1. the nail bin of a medical linear groove part cutter, comprise nail bin face and a sidewall, described nail bin face is run through along the axis of nail bin and is provided with a tool slot, what the both sides of described tool slot were respectively provided with at least two row puts nail, put in nail described in suturing nail for coincideing is placed in, the described vertical described nail bin face of nail of putting is recessed and run through described nail bin, it is characterized in that: described in put nail and comprise medial launder and the first wall, second wall, described first wall opposite second walls is near the sidewall of described nail bin, described first wall is less than the distance of described second wall to medial launder axis to the distance of medial launder axis.

2. the nail bin of medical linear groove part cutter according to claim 1, is characterized in that: the sidewall of described nail bin is the outer wall perpendicular to nail bin face and/or the feed cell wall of nail bin.

3. the nail bin of medical linear groove part cutter according to claim 1, is characterized in that: described in put in nail and be provided with and the described pushing slice of nail put nail cross section and match.