CN202096241U

CN202096241U - Disposable fibrous ring stitching instrument

Info

Publication number: CN202096241U
Application number: CN201120158476XU
Authority: CN
Inventors: 汪代文; 杨学军
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-18
Filing date: 2011-05-18
Publication date: 2012-01-04
Anticipated expiration: 2021-05-18

Abstract

The utility model relates to a disposable fibrous ring stitching instrument which comprises a stitching instrument shell, a trigger, a double-rod assembly ejecting rod , a hollow puncturing needle assembly, a transmission assembly and a spring thimble assembly, wherein the double-rod assembly ejecting rod comprises a left pushing rod and a right pushing rod; the left pushing rod is arranged in a rear shell in sliding manner; the left pushing rod is connected to the right pushing rod; the right pushing rod is fixed on the rear shell; the hollow puncturing needle assembly comprises a hollow bent needle accommodated in the left pushing rod and a hollow straight needle accommodated in the right pushing rod; one end of the ejecting rod is inserted into the hollow bent needle and resists against a sewing needle with a sewing line in the hollow bent needle; a straight needle sliding block is arranged at the tail end of the hollow straight needle; a rod component is arranged in the hollow straight needle; a looping part is arranged at the top of the rod component; the transmission assembly comprises a gear, a rack and an adjusting knob; the rack comprises a saw tooth part and a sliding rail; the tail end of the rod component is fixed with the rack; an upper frame and a lower frame are arranged on the sliding rail; a sliding chute is formed on the upper frame in a concave manner; the straight needle sliding block can slide in the sliding chute; and the spring thimble assembly can lock and unlock the straight needle sliding block.

Description

Disposable fibrous ring stiching instrument

Technical field

This utility model relates to technical field of medical instruments, relates in particular to the disposable stiching instrument that the fibrous ring wound in a kind of can the operation to the vertebral column minimally invasive disc removal is sewed up.

Background technology

At present, when the doctor carries out the wound stitching in operation, all adopt the mode of needle holder clip suture pin that otch is sewed up, but this mode is difficult to operation in deep otch or Minimally Invasive Surgery otch.Such as; In the middle of operation with MED technology treatment intervertebral disk hernia; Because operation path is a gallery (the passage regular size is diameter 1.8cm, long 12cm); Can't operate, obviously, the doctor can't utilize common apparatus in so narrow and small sleeve pipe, to hold to fibrous ring at all and sew up at all.

Owing to can't sew up the fibrous ring of otch,, but still can cause the recurrence problem behind the part corrective surgery even the doctor is clean with Nuclectomy as far as possible.

The utility model content

The purpose of this utility model is to provide a kind of fibrous ring stiching instrument, in a narrow and small passage, to accomplish the automatic sewing to deep tissue or otch, with the postoperative recurrence problem of avoiding anthropic factor to cause to greatest extent.

This utility model provides a kind of disposable fibrous ring stiching instrument, comprising: the stiching instrument housing, and it comprises procapsid and back casing, this procapsid and this back casing intermediate formation accommodation space; Trigger, this accommodation space is stretched on its top, and can pivot around the rotating shaft of being located on this back casing; Two bar assemblies comprise left push rod and right push rod, and this left side push rod all is a groove shape body with this right side push rod, and this left side push rod can be slidingly arranged in this back casing, and this left side push rod can swingingly be connected on this right side push rod, and this right side push rod is fixed on this back casing; Push rod, an end that stretches into the top in this accommodation space of one of which end and this trigger is hinged; Hollow thorn needle assembly; Comprise hollow looper and the interior hollow staight needle of the groove that is placed in this right side push rod in the groove that is placed in this left side push rod; The other end of this push rod stretches in this hollow looper, and conflict in this hollow looper have suture, can crooked sewing needle, the end of this hollow staight needle has the staight needle slide block; Be provided with rod member in this hollow staight needle, the top of this rod member has the lasso part; Transmission component; It comprises: pitch wheel and tooth bar, fasten and be exposed to the adjustment knob of this procapsid with this gear, this tooth bar comprises serrations and slide rail, and the end of this rod member is fixed in this tooth bar; This slide rail has upper frame body and lower frame body; Be concaved with chute on this upper frame body, the intravital end of this lower frame offers opening, and this staight needle slide block can slide in chute; And the spring thimble assembly, be arranged in the lower house, can this staight needle slide block of the locking and unlocking.

Preferably; This pair bar assembly also comprises two braces; The two ends of each brace are respectively equipped with two projections; Spaced apartly on the relative two side wall panels of said left push rod and right push rod offer two pairs of through holes respectively, two projections at the two ends of each brace insert respectively in the respective through hole of offering on the relative two side wall panels of said left push rod and right push rod.

Preferably, this staight needle slide block is provided with through hole, and this rod member penetrates in this hollow staight needle via this through hole.

Preferably; Be provided with blind hole in this staight needle slide block; This spring thimble assembly is made up of sleeve, the spring and the thimble that are located in this sleeve, and this telescopic upper end is stretched in this blind hole, and the upper end of this telescopic roof and thimble is replaced at the two ends of this spring respectively; The lower end of this thimble is most advanced and sophisticated, and this tip withstands on this lower frame body.

Preferably; This stiching instrument also comprises latch assembly, and this latch assembly comprises locking switch and locking slide block, and this locking switch is fastened on this locking slide block; Be exposed to outside this procapsid; The part of this locking slide block stretch into this left side push rod and should right side push rod between, this locking slide block is provided with raised line, this raised line can snap in the recess of afterbody downside of this left side push rod.

The beneficial effect of this utility model is; This disposable fibrous ring stiching instrument is through the hollow looper of rotation adjustment knob controlling, hollow staight needle and the inner lasso of hollow staight needle; Thereby can accomplish stitching at gallery to fibrous ring; Make fibrous ring keep integrity, avoid in the future because the breach of fibrous ring causes the recurrence of intervertebral disk hernia.

Description of drawings

Fig. 1 is the front view of the disposable fibrous ring stiching instrument of this utility model;

Fig. 2 is the sketch map after the disposable fibrous ring stiching instrument of this utility model is removed procapsid;

Fig. 3 is the axonometric chart of the left push rod of disposable fibrous ring stiching instrument;

Fig. 4 is the axonometric chart of the right push rod of disposable fibrous ring stiching instrument;

Fig. 5 is the side view of the hollow looper of disposable fibrous ring stiching instrument;

Fig. 6 is the side view of the hollow staight needle of disposable fibrous ring stiching instrument;

Fig. 7 is the bottom schematic view of the staight needle slide block of hollow staight needle;

Fig. 8 is the sketch map of left push rod and right push rod separated position;

Fig. 9 is the sketch map of left push rod and right push rod merging phase;

Figure 10 is the side view of rod member and rack combination state;

Figure 11 is the vertical view of rod member and rack combination state;

Figure 12 is the side view of rod member, hollow staight needle and rack combination state;

Figure 13 is the vertical view of rod member, hollow staight needle and rack combination state;

Figure 14 is the axonometric chart of rod member, hollow staight needle and rack combination state;

Figure 15 is disposable fibrous ring stiching instrument original state sketch map;

Figure 16 is disposable fibrous ring stiching instrument original state side view;

Figure 17 is the side view that is rotated counterclockwise the disposable fibrous ring stiching instrument of adjustment behind the knob;

Figure 18 is the front view that is rotated counterclockwise the disposable fibrous ring stiching instrument of adjustment behind the knob;

Figure 19 is the side view of the disposable fibrous ring stiching instrument of adjustment behind the knob of turning clockwise;

Figure 20 is the front view of the disposable fibrous ring stiching instrument of adjustment behind the knob of turning clockwise;

Figure 21 is the partial schematic diagram of left push rod and right push rod separated position;

Figure 22 is that suture needle gets into the partial schematic diagram in the lasso under left push rod and the right push rod merging phase;

Figure 23 gets into the sketch map of toe-in for suture; And

Figure 24 is the generalized section of spring thimble assembly.

The specific embodiment

Be elaborated below in conjunction with the specific embodiment of accompanying drawing to this utility model.Should be understood that the specific embodiment described herein only is used for explanation and explains this utility model, is not limited to this utility model.

Like Fig. 1, shown in 2, the disposable fibrous ring stiching instrument of this utility model comprises: stiching instrument housing 10, trigger 20, two bar assembly 30, push rod 40, transmission component 50, hollow thorn needle assembly 60 and spring thimble assembly 70.

Stiching instrument housing 10 snaps together intermediate formation accommodation space 13 by procapsid 11 and back casing 12 through bolt etc.Procapsid 11 has the gripping handle part with back casing 12.

The top of trigger 20 is stretched in the accommodation space 13, and can pivot around the rotating shaft of being located on the back casing 12 121.The upper end 21 of trigger 20, an end that promptly stretches into an end and push rod 40 in the accommodation space 13 is hinged.

Like Fig. 3,4,8, shown in 9, two bar assemblies 30 comprise left push rod 31 and right push rod 32.Left side push rod 31 all is a groove shape body with right push rod 32, the two pairs of through holes 311,321 of offering respectively spaced apart on the relative two side wall panels of groove shape body.The afterbody of right push rod 32 offers two pairs of screws 322, through screwing in screw right push rod 322 is fixed on the back casing 12.31 of the push rods in a left side are slidably disposed in the back casing 12.Left side push rod 31 is pivotably connected on right push rod 32 through two braces 33.In the present embodiment, the upper and lower side of brace 33 is respectively equipped with two projections 331, and its correspondence is placed in the through hole 312,322; Thereby when left push rod 31 by the position that is separated from each other relative motion took place with right push rod 32, brace 33 can swing to obliquity by vertical position accordingly, at this moment; Left side push rod 31 fits with right push rod 32; Brace 33 is placed in the groove of push rod 31 and right push rod 32, and is as shown in Figure 9, guaranteed the complete sum slickness of two bar assembly 30 outward appearances like this.

For the better applying of left push rod 31 of control and right push rod 32, also latch assembly 80 can be set.Like Fig. 1, shown in 2, latch assembly 80 comprises locking switch 81 and locking slide block 82.Locking switch 81 is fastened on the locking slide block 82, is exposed to outside the procapsid 11, can drive the locking slide block and stir up and down.The part of locking slide block 82 stretches between left push rod 31 and the right push rod 32; Locking slide block 82 is provided with raised line 83; When upwards promoting through locking switch 81 can be along locking slide block 82 that the intravital slideway of back cover slides the time, raised line 83 snaps in the recess 312 of afterbody downside of left push rod 31, when downward promotion locking slide block 82; Raised line 83 leaves recess 312, thereby removes the locking between left push rod 31 and the right push rod 32.Therefore, user can be controlled the locking of left push rod 31 and right push rod 32 through stirring locking switch 81 up and down, prevents maloperation.

Like Fig. 2,5, shown in 6, hollow thorn needle assembly 60 comprises hollow looper 61 and hollow staight needle 62, and it is placed in respectively in the groove of left push rod 31 and right push rod 32.The other end of push rod 40 stretches in the hollow looper 61, and the sewing needle that has suture 90 611 in conflict the place ahead.Therefore, when user cocking 20, push rod 40 ejects sewing needle 63 under the promotion of trigger 20.In utility model, sewing needle 63 be can be crooked the special alloy silk, therefore be easy to be contained in bendingly in the hollow looper 61.

Like Figure 10,11,12,13, shown in 14, be provided with rod member 64 in the hollow staight needle 62, the top of rod member 64 has lasso part 641, and terminal and transmission component 50 usefulness glue etc. fixed, so the two does not have relative motion.When assembling; Earlier that rod member 64 is fixing with transmission component 50, again rod member 64 is stretched into from the bottom through-hole 6211 that is fixed on the terminal staight needle slide block 621 of hollow staight needle 62, because lasso 641 is for adopting the lasso of specific alloy material; Can guarantee that it stretches out in staight needle after; Return to the great circle that diameter is 3.5mm rapidly, diameter is that the sewing needle of 0.4mm just can easily pass in the circle like this, guarantees the success rate of sewing up.

Shown in Figure 15 to 20, transmission component 50 comprises: pitch wheel 51 and tooth bar 52, fasten and be exposed to the adjustment knob 54 of procapsid 11 with gear 51.Tooth bar 52 comprises serrations 521 and slide rail 522.The end of rod member 64 is fixed in tooth bar 52.User can make inner gear 51 drive slide rails 522 through serrations 521 through rotation adjustment knob 54 and slide along the gathering sill 122 of lower house 12, and then it is 62 flexible in hollow staight needle to drive rod member 64.Shown in figure 10, slide rail 522 has upper frame body 5221 and lower frame body 5222.Be concaved with chute 5223 on the upper frame body 5221, the end in the lower frame body 5222 offers opening 5224.Staight needle slide block 621 can slide in chute 5223, and therefore, user can move on slide rail through the hollow staight needle 62 of rotation adjustment knob 54 controls.And the front end of serrations 521 is positioned at the rear of left push rod 31, when tooth bar 52 travels forward, can promote left push rod 31, because right push rod 32 is fixed on the back casing 12, therefore, through rotating adjustment knob 54, left push rod 31 and right push rod 32 is fitted.

Shown in figure 24, spring thimble assembly 70 is made up of sleeve 71, the spring 72 and the thimbles 73 that are located in the sleeve 71.Sleeve 71 embeds in the stopper slot 123 that is fixed on the lower house 12, can not move forward and backward, and can only move up and down.The upper end of sleeve 71 is arranged in the blind hole 623 of staight needle slide block 621.The upper end of the roof and the thimble 73 of sleeve 71 is replaced at the two ends of spring 72 respectively, and the lower end of thimble 73 is tip 731, and most advanced and sophisticated 731 withstand on the lower frame body 5222 of slide rail 522.Under original state; The hollow staight needle 62 that is connected with spring thimble assembly 70 is fixed, and when clockwise rotating adjustment knob 54 when slide rail 522 is moved backward, most advanced and sophisticated 731 relative lower frame bodies 5222 move; But static with respect to back casing 12, promptly hollow staight needle 62 keeps static.When slide rail 522 move to opening 5224 with most advanced and sophisticated 731 pairs punctual; Thimble 73 is ejected downwards from opening 5224 by spring 72, and sleeve 71 breaks away from the blind hole 623 of staight needle slide block 621 immediately, thereby removes 70 lockings to this hollow staight needle 62 of spring thimble assembly; Continue to clockwise rotate adjustment knob 54 again; Tooth bar 52 is in company with staight needle slide block 621 motion backward together, and hollow staight needle 62 is also driven, in the right push rod 32 of thereupon withdrawing.

Below, with the sew application that specifies disposable fibrous ring stiching instrument.

At first an end of suture 90 is connected in the end of sewing needle 611, the other end of suture 90 is accomplished fluently toe-in 901 around the periphery of hollow staight needle 62,, the sewing needle that is connected with suture 90 611 is inserted in the hollow looper 61 like Figure 21,22, shown in 23.

The handle of the at first hand-held disposable fibrous ring stiching instrument of user thrusts hollow looper 61 from the both sides of otch with hollow staight needle 62 simultaneously.

Like direction among Fig. 2, rotate counterclockwise adjustment knob 54, tooth bar 52 is moved to the left, thereby the rod member 64 that is connected with tooth bar 52 also is moved to the left, make the lasso 641 of rod member 64 front ends in hollow staight needle 62, stretch out.Because the front end of tooth bar 52 is positioned at the rear of left push rod 31, when tooth bar 52 was moved to the left, left push rod 31 also can be moved to the left, and then fitted with right push rod 32, like Figure 17, shown in 18.

Cocking 20 then, make connected push rod 40 that the sewing needles in the hollow looper 61 63 are released, and get into the lasso 641 that stretches out in the hollow staight needle 62, like Figure 17,18, shown in 22.

After this, clockwise rotate adjustment knob 54, tooth bar 52 drives rod member 64 toward swivel motion, and in the hollow staight needle 62 of lasso 641 indentations, at this moment, sewing needle 63 is broken away from hollow looper 61 by bending together in company with suture 90 and is drawn in the hollow staight needle 62.

Continue to clockwise rotate adjustment knob 54; When tip that tooth bar 52 moves to opening 522 and spring thimble assembly 70 on time, fixedly being disengaged of hollow staight needle 62 can begin to move; Continue to clockwise rotate adjustment knob 54 again, in the right push rod 32 of hollow staight needle 62 whole retractions.Because an end of suture 90 is connected in sewing needle 611; The other end centers on hollow staight needle 62, and outside hollow staight needle 62, accomplishes fluently toe-in 901 in advance, therefore; In the right push rod 32 of hollow staight needle 62 whole retractions; Sewing needle 611 is contained in the hollow staight needle 62, and an end that is connected in sewing needle 611 of suture 90 gets in the toe-in 901, like Figure 19,20, shown in 23.Like this, just be equivalent to suture 90 and get into, pass from an other side, and beat what a toe-in, also just accomplished an automatic knotting process from a side of otch.Then, extract stiching instrument, tension such as the line device toe-in that pushes away capable of using is then cut off suture with shears, and whole stitching action is accomplished.

In addition, also can carry out combination in any between the various embodiment of this utility model, as long as its thought without prejudice to this utility model, it should be regarded as content disclosed in the utility model equally.

Claims

1. a disposable fibrous ring stiching instrument is characterized in that, comprising:

The stiching instrument housing, it comprises procapsid and back casing, this procapsid and this back casing intermediate formation accommodation space;

Trigger, this accommodation space is stretched on its top, and can pivot around the rotating shaft of being located on this back casing;

Two bar assemblies comprise left push rod and right push rod, and this left side push rod all is a groove shape body with this right side push rod, and this left side push rod can be slidingly arranged in this back casing, and this left side push rod can swingingly be connected on this right side push rod, and this right side push rod is fixed on this back casing;

Push rod, an end that stretches into the top in this accommodation space of one of which end and this trigger is hinged;

Hollow thorn needle assembly; Comprise hollow looper and the interior hollow staight needle of the groove that is placed in this right side push rod in the groove that is placed in this left side push rod; The other end of this push rod stretches in this hollow looper, and conflict in this hollow looper have suture, can crooked sewing needle, the end of this hollow staight needle has the staight needle slide block; Be provided with rod member in this hollow staight needle, the top of this rod member has the lasso part;

Transmission component; It comprises: pitch wheel and tooth bar, fasten and be exposed to the adjustment knob of this procapsid with this gear, this tooth bar comprises serrations and slide rail, and the end of this rod member is fixed in this tooth bar; This slide rail has upper frame body and lower frame body; Be concaved with chute on this upper frame body, the intravital end of this lower frame offers opening, and this staight needle slide block can slide in chute; And

The spring thimble assembly is arranged in the lower house, can this staight needle slide block of the locking and unlocking.

2. stiching instrument according to claim 1; It is characterized in that; This pair bar assembly also comprises two braces; The two ends of each brace are respectively equipped with two projections, spaced apartly on the relative two side wall panels of said left push rod and right push rod offer two pairs of through holes respectively, and two projections at the two ends of each brace insert respectively in the respective through hole of offering on the relative two side wall panels of said left push rod and right push rod.

3. stiching instrument according to claim 1 is characterized in that, this staight needle slide block is provided with through hole, and this rod member penetrates in this hollow staight needle via this through hole.

4. stiching instrument according to claim 1; It is characterized in that, be provided with blind hole in this staight needle slide block, this spring thimble assembly is made up of sleeve, the spring and the thimble that are located in this sleeve; This telescopic upper end is stretched in this blind hole; The upper end of this telescopic roof and thimble is replaced at the two ends of this spring respectively, and the lower end of this thimble is most advanced and sophisticated, and this tip withstands on this lower frame body.

5. stiching instrument according to claim 1 is characterized in that this stiching instrument also comprises latch assembly; This latch assembly comprises locking switch and locking slide block; This locking switch is fastened on this locking slide block, be exposed to outside this procapsid, the part of this locking slide block stretch into this left side push rod and should right side push rod between; This locking slide block is provided with raised line, and this raised line can snap in the recess of afterbody downside of this left side push rod.