CN2055365U - Automatic suture instrument for skin - Google Patents

Abstract

The utility model relates to a medical automatic suture instrument for skin. The automatic closing of a metal nail is adopted to replace the traditional sheep catgut sewing by hand. The utility model is characterized in high suture speed and decreased patient's pain. After an incision is sutured, the metal nail is withdrawn. The utility model comprises a suture nail chamber, a handle and a gun body, mainly characterized in that the suture nail on a nail loading belt in the chamber and a nail pushing plate are on the same place of a nail chamber seat, and the two top ends of the nail pushing plate are pressed on the nail loading belt. A weaving bar which is downward bent and hung at the front end of a nail chamber cover acts as an anvil block. The instrument has advantages of compact structure, continuous suture and repeated use.

Description

Automatic suture instrument for skin

This utility model relates to a kind of medical myometrial suture apparatus, belongs to medical instruments field.

Traditional surgery medical skill is to wear the catgut of threading with operation needle to sew up to patient's incision surgery sewing method.This method stitching speed is slow, takes length, and needs of patients is anaesthetized for a long time.

In order to overcome above-mentioned shortcoming, improve the traditional method of sewing up, abroad beginning one's study from nineteen thirties replaces catgut to sew up the incision with peg.The seventies surgical stapler (seeing United States Patent (USP) 3873016 and 4109844) that goes out to use rustless steel seam nail produced in USA, the U.S. updates its product (seeing United States Patent (USP) 4411378 and 4412539) again since the eighties.The general representative that very can be used as this stiching instrument to the patent of invention 85104962 of China's application of Australian inventor Dai Weibite William in 1985, its technical characterictic is that the seam nail is shaped on anvil block by ram pressures, implants in the patient skin.But seam nail direct of travel and ram movement direction are not same directions, and form an angle.Anvil block moves between operating position and off-position.This stiching instrument complex structure, the processing technology difficulty is big, and the price height uses once promptly to abandon.In United States Patent (USP) 4485953, mentioned a kind of pincerlike surgical stapler in 1984.Its feature is that stiching instrument itself does not have seam nail chamber, only is a simple forming device.During use, be placed between anvil block and the pressure head, be pressed in the patient skin with this stiching instrument reinforcing then by taking out a seam nail the nail box of user outside this apparatus.The major defect of this apparatus is to use very inconvenient.

The purpose of this utility model is a kind of compact conformation of development, can advances seam nail to implant patient skin continuously, again can reusable surgical stapler.

This stiching instrument is made up of three parts, i.e. handle, suturing nail chamber and rifle body.As shown in Figure 1.

(1) is handle among Fig. 1, and (2) are little axles, and (3) are latch, and (4) are that suturing nail chamber (5) is a swivel head, (6) be push rod, (8) are rifle body covers, and (9) are extension springs, (10) be the rifle body, (12) are connecting rods, and (13) are forks.

During use, nail chamber (4) is pressed in the swivel head (5) by latch (3).Bossing and push rod (6) prolong knot on the nail pushing plate of nail intracavity.Handle (1) is subjected to can pass to fork (13) by connecting rod (12) around little axle (2) motion after the grip, and fork promotion push rod (6) and nail pushing plate are to front slide.Connect pin chamber and rifle body place swivel head (5) is housed, the nail chamber can horizontally rotate 360 °, is fit to the stitching of different parts.

The structure in nail chamber (4) as shown in Figure 2.(7) are nail chamber seats among Fig. 2, and (11) are the binding bands, and (12) are nail pushing plates, and (13) are the seam nails, and (14) are retaining reeds, and (15) are crosspiece (being anvil block), and (17) are nail chamber covers, and (19) are central layers.The central layer (19) of nail chamber seat (1) is gone up around an annular binding band (11).The binding band is by the polyethylene from high pressure process injection mo(u)lding.Nail pushing plate (12) and push rod (6) prolong knot, its front end is pressed on the binding band.Last the place ahead of nail chamber cover (17) is equipped with a retaining reed (14) and is prevented to move behind the seam nail.Long length of straight flange after nail chamber cover (17) front end has curved its width of crosspiece (15) that hangs down and stitches the nail closure is identical, as the anvil block that makes seam nail closed moulding.

The shape of binding band as shown in Figure 3.On the binding band (11), vertically its direct of travel has parallel groove (16) continuously, uses for placing the seam nail.The long straight flange of each seam nail crouches in the groove, and two to follow closely lower limbs parallel with binding band direct of travel.

Being shaped as of seam nail (13)

Shape, the long 10.2mm of long straight flange, two each long 2.4mm of nail lower limb are made by stainless steel material.

The shape of nail pushing plate (12) as shown in Figure 4.Its front end has a fluting (20), and two tops (21) are pressed on the binding band.There is a projection (18) rear end of nail pushing plate, articulates with push rod (6).

Major technique feature of the present utility model is: seam nail on the nail intracavity binding band and nail pushing plate are on the plane of same nail chamber seat.Nail pushing plate is pressed on the binding band.Cover front end down curved vertical crosspiece in nail chamber is as anvil block.During use, after handle is subjected to grip, this power promotes push rod and nail pushing plate by connecting rod, fork, nail pushing plate is pressing the binding band to advance forward, when the seam in foremost on the binding band is pinned to when reaching nail chamber front end, the crosspiece shelves are lived the long straight flange of nail, and two tops of nail pushing plate are pressed on the long limit that seam follows closely, make the distortion of seam nail closed, implant in the skin simultaneously.

The advantage that this utility model is compared with prior art had is: the seam that (1) this stiching instrument is used is bound at the nail intracavity, sews up the incision continuously and automatically.(2) after latch takes off, the nail chamber of using up the seam nail can be taken out, change a new nail chamber new, that the seam nail is equipped with in the process sterilization, so this apparatus be reusable.(3) nail pushing plate is parallel with the binding band, compact conformation, light and handy, every about 70 grams of weight.

Below accompanying drawing is described further:

Fig. 1 is the whole profile of skin automatic suturing machine.

Fig. 2 is the profile in skin automatic suturing machine nail chamber.

Fig. 3 is the profile of skin automatic suturing machine binding band.

Fig. 4 is the profile of skin automatic suturing machine nail pushing plate.

Fig. 5 is the use sketch map of skin automatic suturing machine.

The seam nail was implanted the closed moulding sketch map of skin when Fig. 6 was to use this stiching instrument.

Operating process of the present utility model is as shown in Figure 5: the end user will follow closely the chamber leading section across patient's otch, contact skin lightly.Hold handle (1), grip is passed to fork (13) by connecting rod (12), and fork promotes push rod (6) to front slide, promotes nail pushing plate (12), and first seam of nail pushing plate pushing followed closely out the chamber, and closed moulding is finished stitching.At this moment, second seam nail is to first position that the seam nail is waited to send out.When handle loosened, nail pushing plate rollback, while retaining reed are pushed down the binding cutter did not cause the seam nail to retreat, and resets up to extension spring (9).When first the seam ailing well after the end user stiching instrument is moved forward, make crosspiece deviate from the straight long limit lower edge of first nail.Then with the stiching instrument front end to second suture needle position, hold handle, repeat above-mentioned action.Hammer into second seam nail.Continue like this and can sew up continuously.

Seam nail be subjected to nail pushing plate top pressure and the process that forms as shown in Figure 6.The binding band is subjected to the promotion of nail pushing plate, and the seam on the binding band is pinned to when reaching nail end, chamber, goes out the chamber, and two nail lower limbs vertically are pressed into patient skin, are subjected to following closely the obstruction (seeing Fig. 6 (a)) of chamber end rails simultaneously.Nail pushing plate two tops are pressed on the long limit of seam nail, make nail lower limb curve inwardly (seeing Fig. 6 (b)).Be subjected to the pressure of nail pushing plate notch two inboards simultaneously, make two nail lower limbs meet at right angles (seeing Fig. 6 (c)).At this moment the handle grip is unclamped, and nail pushing plate is return, and extension spring resets, and user moves forward stiching instrument, and the lower edge that makes crosspiece the withdraw from seam nail pin of promptly sewing it up is seen Fig. 6 (d)).

When wound healing, clamp past the pressing down in seam nail straight flange center that is exposed at the skin outside with pliers, then two pin lower limbs open, and vertical skin can be extracted.

Claims (6)

1, a kind of medical otch automatic suturing machine, comprise suturing nail chamber [4], pull handle [1] and rifle body [10], it is characterized in that: seam nail [13] on nail chamber [4] the interior binding bands [11] and nail pushing plate [12] are on the plane of same nail chamber seat [7], nail pushing plate is pressed on the binding band, the sagging crosspiece [15] of nail chamber cover [17] front end is as anvil block usefulness, and the seam nail is subjected to the resistance closed moulding of nail pushing plate top pressure and crosspiece.

2, stiching instrument as claimed in claim 1, it is characterized in that annular binding band (11) is by the polyethylene from high pressure process injection mo(u)lding, parallel groove (16) is continuously arranged on it, this groove is perpendicular to the direct of travel of binding band, the long straight flange of seam nail crouches in groove, and two nail lower limbs of seam nail are parallel to the direct of travel of binding band.

3, stiching instrument as claimed in claim 1 is characterized in that nail pushing plate is a long band shape, and front end has a notch (20), and two tops (21) on notch limit promote the binding band and advance, and the rear end of nail pushing plate has a projection (18) to articulate mutually with push rod (6).

4, stiching instrument as claimed in claim 1 is characterized in that following closely chamber cover front upper place retaining reed (14) is housed, and is pressed on the binding band.

5, stiching instrument as claimed in claim 1 is characterized in that connecting the pin chamber and swivel head (5) is equipped with at rifle body place, and the pin chamber can horizontally rotate 360 °, is fit to the stitching of different parts.

6, stiching instrument as claimed in claim 1 is characterized in that in nail bottom, chamber (4) latch (3) being housed, and takes off this plate, can take out in the nail chamber, change to one new and through disinfectant nail chamber.

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