CN209018826U - A kind of double end sewing needle for operation in nasal cavity - Google Patents

Abstract

The utility model relates to a kind of double end sewing needles for operation in nasal cavity, including needle body and suture, the opposite both ends of needle body are equipped with for puncturing the tip sutured, needle body has gap, suture is fixed in the gap by interference engagement, and the two sides in the gap of needle body have opposite the first dent and the second dent.The double end sewing needle of the utility model, with for puncturing sutured two tips, suture can be continuously punctured in nasal cavity in use, when sewing needle is pierced into the other end from one end by doctor to be pulled out, no replacement is required direction can directly be pierced into suture tissue, repeatedly again in nasal cavity with the other end, it sutures end and pulls out suture and knot, so that providing a kind of can realize the double end sewing needle of two-way suture in small space.

Description

A kind of double end sewing needle for operation in nasal cavity

Technical field

The utility model relates to medical instruments, relate more specifically to a kind of double end sewing needle for operation in nasal cavity.

Background technique

Sewing needle is a kind of instrument for surgical operation suturing, and mostly stainless steel wire drills or slots in backshank and is made. When operation in nasal cavity needs to suture, due to specific seam area, Oversewing space is smaller, and operative incision stapler can not make With as often sutured with single head sewing needle using market, patient is difficult to carry out suture operation, and one after needle-penetration goes out, is difficult It is realized in nasal cavity small space again and changes head, also need to prevent out to be punctured to its hetero-organization when needle.Period suture movement it is cumbersome, It is inefficient, the operation stitching time is influenced, operation stitching difficulty is increased.

Utility model content

In order to solve the problems, such as that above-mentioned sewing needle of the existing technology is not used to operation in nasal cavity, the utility model purport A kind of double end sewing needle for operation in nasal cavity is being provided.

The utility model provides a kind of double end sewing needle for operation in nasal cavity, including needle body and suture, needle body Opposite both ends are equipped with for puncturing the tip sutured, and needle body has gap, and suture is fixed on by interference engagement In the gap, the two sides in the gap of needle body have opposite the first dent and the second dent.

Suture is fixed on the intermediate position of needle body.

The length in the gap is between 1st/1 percentth to 80 of the length of needle body.

First dent and the second dent are identical.

First dent and the second dent are respectively provided with rectangle or circular cross section.

The depth of first dent and the second dent is respectively between 1st/1st to five/10th of the diameter of needle body.

Needle body is linear or arc.

The section at tip is circle, triangle, ellipse or positive shape changeable.

The double end sewing needle of the utility model has for puncturing two tips sutured, in use can be continuous Suture is punctured in nasal cavity, when sewing needle is pierced into the other end from one end by doctor to be pulled out, no replacement is required direction can be in nasal cavity Inside directly it is pierced into suture tissue again with the other end, repeatedly, suture end pulls out suture and knots, to provide one Kind the double end sewing needle of two-way suture can be realized in small space.

Detailed description of the invention

Fig. 1 is according to the present utility model for processing the general structure schematic diagram of the squeeze riveter clamp of sewing needle；

Fig. 2 shows the green bodies of the sewing needle before processing；

Fig. 3 is the enlarged drawing of the upper mold of Fig. 1；

Fig. 4 is the enlarged drawing of the lower lock block of Fig. 1；

Fig. 5 shows the green body being set on lower lock block；

Fig. 6 shows the sewing needle after processing.

Specific embodiment

With reference to the accompanying drawing, the preferred embodiment of the utility model is provided, and is described in detail.

One side according to the present utility model provide it is a kind of for processing the squeeze riveter clamp 2 of sewing needle, as shown in Fig. 1.Figure 2 show the green body 1 ' of the sewing needle before processing comprising and main body 11 ' and suture 12 ', main body 11 ' are equipped with tip 111 ', It is sutured for puncturing.The intermediate position of main body 11 ' is provided with circular hole 112 ', and suture 12 ' extends across the circular hole 112 '. Squeeze riveter clamp 2 is used to for suture 12 ' being fixed in the circular hole 112 '.Specifically, as shown in Figure 1, squeeze riveter clamp 2 includes upper mold 21 and lower die 22, the fixation that presses of suture 12 ' is realized by the cooperation of the upper mold 21 and lower die 22.

Fig. 3 is the enlarged drawing of the upper mold of Fig. 1, wherein upper mold 21 has upper holder block 211, towards before the upper mold of lower die 22 Upper mold half slot 2112 corresponding with the appearance profile of main body 11 ' is provided in end face 2111.It is set in the upper mold half slot 2112 It is equipped with protrusion 2113, is used to squeeze main body 11 '.

Fig. 1 is returned to, lower die 22 includes fixed plate 221, guide pin 222, red needle 223, elastomer 224, pressing plate 225 and lower lock block 226, wherein pressing plate 225 is relatively fixed by guide pin 222 and fixed plate 221, and elastomer 224 is set to pressing plate 225 and fixed plate Between 221, lower lock block 226 be fixed on pressing plate 225 towards on the surface of upper mold 21, red needle 223 is fixed on fixed plate 221 It goes up and may pass through elastomer 224 and pressing plate 225 and be pierced by from lower lock block 226, is i.e. red needle 223 can be pierced by towards upper mold 21 Surface is formed as the pressure interface for the main body 11 ' that presses.In the present embodiment, elastomer 224 is polyurethane PU elasticity Body, i.e., excellent power glue.Preferably, which is middle part slice of cylinder with holes.In the present embodiment, guide pin 222 has screw thread Section 2221, cylindrical section 2222 and stub end 2223, wherein cylindrical section 2222 is between thread segment 2221 and stub end 2223.

More specifically, fixed plate 221 is rectangular slab, stepped hole 2211 is provided on four angles, the insertion of guide pin 222 should Cooperation in stepped hole 2211, particularly, the diameter of the cylindrical section 2222 of guide pin 222 are less than the internal diameter of the stepped hole 2211 with can be Sliding, limits the sliding distance using the position of the stub end 2223 of the guide pin 222 in the stepped hole 2211.Fixed plate 221 Center there is square hole 2212, fixation is inserted into the square hole 2212 in the rear end of separate the upper mold 21 of red needle 223.In addition, fixed plate 221 towards the circular trough 2213 on the surface of pressing plate 225 with recess, the end towards fixed plate 221 of elastomer 224 It is accommodated in the circular trough 2213.It should be understood that the diameter of the circular trough 2213 is slightly larger than the outer diameter of elastomer 224, thus Between the circumferential side wall and fixed plate 221 of elastomer 224 there are gap, with for elastomer 224 in the case where being crushed Deformation provides gap.

Similarly, pressing plate 225 is rectangular slab, and there are four threaded holes 2251, guide pin 222 to be inserted into the screw thread for setting on angle Cooperation in hole 2251, particularly, the thread segment 2221 and threaded hole 2251 of guide pin 222 tighten fixation by screw thread.In this way, bullet Property body 224 is pressed between pressing plate 225 and fixed plate 221 and in connection is integrated.

In the present embodiment, red needle 223 is quadrangular shape, is formed with formed punch 2231 towards one end of upper mold 21, For carrying out punching press to main body 11 '.

Fig. 4 is the enlarged drawing of the lower lock block of Fig. 1, wherein the center of lower lock block 216 has punching 2261, is used for for punching Needle 223 (especially formed punch 2231) thus slides and is pierced by and acts on main body 11 '.The lower die towards upper mold 21 of lower lock block 216 Lower die half slot 2263 corresponding with the appearance profile of main body 11 ' is provided in front end face 2262, before the upper mold of upper holder block 211 The upper mold half slot 2112 of end face 2111 limits the space accommodated for main body 11 ' jointly.In addition, lower lock block 216 also has vertically In the lower die half slot 2263 and from the slit 2264 of the recess of lower die front end face 2262, for accommodating suture 12 '.

Another aspect according to the present utility model provide it is a kind of using squeeze riveter clamp 2 process sewing needle 1 method, including with Lower step:

Red needle 223 is fixed in the square hole 2212 of fixed plate 221 by S1 referring to Fig. 1, by 224 sets of elastomer in red needle On 223 and it is contained in it in circular trough of fixed plate 221 2213；Lower lock block 226 is fixed on pressing plate 225, guide pin is passed through 222 link together pressing plate 225 and fixed plate 221；To complete the installation of lower die 22；

S2, by the upper mold half slot 2112 (referring to Fig. 3) of upper mold 21 and the lower die half slot 2263 of lower die 22 (referring to figure 4) parallel alignment, it is ensured that the alignment of the center of upper mold 21 and lower die 22, so that formed punch 2231 can vertically be gone out from lower die 22, ginseng See Fig. 1；

Suture 12 ' is passed through the circular hole 112 ' of main body 11 ', main body 11 ' is then put into lower die half slot 2263 by S3 (referring to fig. 4) in, suture 12 ' is pulled respectively with two hands after suture 12 ' was contained in slit 2264 (referring to fig. 4), is made It obtains suture 12 ' to be tightened up in slit 2264, before the axis of the circular hole 112 ' of causative subject 11 ' and the lower die of lower lock block 216 End face 2262 is parallel, as shown in figure 5, then driving upper mold 21 is mobile towards lower die 22, so that protrusion 2113 (referring to Fig. 3) is first Main body 11 ' is first contacted, impression is formed in main body 11 ' and the circular hole 112 ' in main body 11 ' is forced to be deformed into class semicircle orifice to press Suture 12 '；

S4 continues to drive upper mold 21 mobile towards lower die 22, upper mold front end face 2111 (referring to Fig. 3) and lower die front end face 2262 (referring to fig. 4) contacted and gave lower lock block 216 pressure, and elastomer 224, which is under pressure, to deform, at this point, seaming chuck 21, Main body 11 ', lower lock block 226, pressing plate 225 and guide pin 222 move together, since fixed plate 211 remains stationary and red needle 223 is Fixed length, therefore the formed punch 2231 of red needle 223 exposes from punching 2261 (referring to fig. 4) in moving process, is formed in main body 11 ' Impression simultaneously forces the class semicircle orifice in main body 11 ' to be further deformed into gap to compress suture 12 '.When protrusion 2113 is in main body For the impression formed on 11 ' with red needle 223 when the dent formed in main body 11 ' is consistent, circular hole is deformed into gap to compress suture Line 12 ', press completion at this time.

Fig. 6 shows the sewing needle 1 after processing comprising needle body 11 and suture 12, suture 12 pass through threading pressure The mode of riveting is fixed on the intermediate position of needle body 11.The opposite both ends of needle body 11 are equipped with tip 111, are stitched for puncturing It closes, due to having two tips 111, can continuously puncture suture in nasal cavity in use, when sewing needle is pierced by doctor from one end When the other end pulls out, no replacement is required direction can be directly pierced into again with the other end in nasal cavity and suture tissue, repeatedly, It sutures end and pulls out suture and knot, so that providing a kind of can realize the double end sewing needle of two-way suture in small space. The intermediate position of needle body 11 has gap 112, and suture 12 is fixed in the gap 112 by interference engagement.Wherein, it stitches The length of gap 112 is between 1st/1 percentth to 80 of the length of needle body 11.The two sides in the gap 112 of needle body 11 have There are opposite the first dent 113 and the second dent 114.Preferably, the first dent 113 and the second dent 114 are identical.First dent 113 have rectangular cross section, and depth is between 1st/1st to five/10th of the diameter of needle body 11.Second dent 114 is same Sample has rectangular cross section, and depth is between 1st/1st to five/10th of the diameter of needle body 11.It should be understood that this first The cross section of dent 113 and the second dent 114 may be circle etc., by the protrusion 2113 of mold 2 and the shape of formed punch 2231 Shape determines.In the present embodiment, needle body 11 is linear.It should be understood that the needle body 11 also can according to need and be selected as arc Shape.In the present embodiment, the section at tip 111 is circle.It should be understood that according to the puncture force needs of suture site, tip 111 Section may be selected to be triangle, ellipse or positive shape changeable.

Above-described, the only preferred embodiment of the utility model is not intended to limit the scope of the utility model, this Above-described embodiment of utility model can also make a variety of changes.I.e. all claims according to the present utility model application and Simple, equivalent changes and modifications, fall within the claims of the utility model patent made by description.This The not detailed description of utility model is routine techniques content.

Claims (8)

1. a kind of double end sewing needle for operation in nasal cavity, which is characterized in that including needle body and suture, needle body it is opposite Both ends are equipped with for puncturing the tip sutured, and needle body has gap, and suture is fixed on the gap by interference engagement In, the two sides in the gap of needle body have opposite the first dent and the second dent.

2. double end sewing needle according to claim 1, which is characterized in that suture is fixed on the intermediate position of needle body.

3. double end sewing needle according to claim 1, which is characterized in that percentage of the length in the gap in the length of needle body One of between 1/80th.

4. double end sewing needle according to claim 1, which is characterized in that the first dent and the second dent are identical.

5. double end sewing needle according to claim 1, which is characterized in that the first dent and the second dent are respectively provided with rectangle Or circular cross section.

6. double end sewing needle according to claim 1, which is characterized in that the depth of the first dent and the second dent exists respectively Between 1st/1st to five/10th of the diameter of needle body.

7. double end sewing needle according to claim 1, which is characterized in that needle body is linear or arc.

8. double end sewing needle according to claim 1, which is characterized in that the section at tip is circle, triangle, ellipse Or positive shape changeable.