Invention content
When the purpose of the present invention is to provide being sutured in the prior art with alleviating, holdfast and suture are in human bodyIt is interior, holdfast and suture be human body can absorb, degradable material；But after it has been gathered, suture is surprisingly pulled apart, holdfast takes offIt falls and falls into human abdominal cavity, holdfast has sharp tips, and easily human body is damaged；Or due to suture earlier than holdfast dropSolution, holdfast, which comes off, to be fallen into human abdominal cavity, human body is damaged and suture pass through fascia layer after, apart from wound veryInto the technical issues of sewing effect is poor.
A kind of puncture needle provided by the invention, including needle body, for the operation portion of operation and for being inserted into tissueInsertion section；
The needle body includes the first impeller, the second impeller and axostylus axostyle；Cavity in the axostylus axostyle；Described logicalIntracavitary is provided with first impeller and second impeller；The operation is provided in the first impeller upper endPortion；The second impeller lower end is provided with the insertion section；And first impeller be on second impellerSide；
First impeller includes the first promotion part and the second promotion part being connected on first promotion part；It is describedSecond promotion part is contacted with second impeller；And the maximum width of second promotion part is less than first promotion part mostBig width；
Second impeller includes and first connecting portion, second connecting portion and third connecting portion；In the described second connectionSecond spring is provided with outside portion；The fixed column for connecting insertion section is provided on third connecting portion；
The second annular convex platform for being used to support the second spring is provided in the axostylus axostyle；
It is provided with first annular boss in the second annular convex platform upper end, second promotion part can pass through described theOne annular convex platform；
The limiting chuck being stuck on first annular boss is provided on second promotion part；
Include at least two supporting plates in the insertion section, arc groove is provided on the supporting plate；It is set in the arc grooveIt is equipped with the fixed column.
Further, the first annular boss upper end is provided with the sliding part slided in axostylus axostyle；In the sliding partInside it is provided with the perforation to match with the first impeller.
Further, the threading needle for threading is provided on the sliding part；
The threading needle is L-shaped；Described threading needle one end is connected on the sliding part, and the other end is towards the insertionPortion；The cable clamping interface for card line is provided on the threading needle, the under shed of the cable clamping interface is less than the cable clamping interface.
Further, the sliding slot for threading needle movement is provided on the axostylus axostyle；Having in the sliding slot lower end makes to wearThe arc port that line needle moves out.
Further, it is provided with the first spring in the axostylus axostyle；First spring is arranged on first annular boss and cunningBetween dynamic portion.
Further, it is provided on the supporting plate for the perforative silica gel portion of threading needle.
Further, the locating part for limiting the first impeller rotation angle is provided on the axostylus axostyle, in the limitThe third spring for restoring locating part is connected on the part of position.
Further, it is provided with the connector connected for axostylus axostyle on the operation portion.
The present invention also provides a kind of wound closure devices, including outer sleeve and puncture needle described above, the outsideCasing is set in outside the puncture needle；The fluting threaded for threading needle is provided on the outer sleeve.
Further, the valve for connecting feeder is provided on the outer sleeve；In the outer sleeveIt is provided with the first seal and second seal for sealing gas.
Suture is fixed on insertion section, then pass through by puncture needle and wound closure device provided by the invention with threading needlePuncture needle from outer sleeve is taken out, realizes the suture to wound, such suture does not need to holdfast；It disclosure satisfy that abdominal cavityWhile videoendoscopic surgery, when suture, holdfast will not be left in abdominal cavity, is only sutured by suture, improved in this waySafety, avoids holdfast and falls into abdominal cavity, human body is damaged；The supporting plate of insertion section can open simultaneously, thread in this waySuture can be fixed on from wound remote position by needle, and after such suture passes through fascia layer, the effect of suture is more preferable.
Specific embodiment
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementationExample is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skillPersonnel's all other embodiments obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely toConvenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second "," third " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phaseEven ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It canTo be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke YishiConnection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete conditionConcrete meaning in invention.
As shown in figs 2-4, the present invention provides a kind of puncture needle, including needle body, for the operation portion of operation100 and the insertion section 600 for being inserted into tissue；
The needle body includes the first impeller 200, the second impeller 140 and axostylus axostyle 210；In the axostylus axostyle 210Cavity；First impeller 200 and second impeller 140 are provided in the cavity；In first impeller200 upper ends are provided with the operation portion 100；Second impeller, 140 lower end is provided with the insertion section 600；And instituteStating the first impeller 200 is and 140 top of the second impeller；
What first impeller 200 included the first promotion part 201 and was connected on first promotion part 201 second pushes awayInto portion 202；Second promotion part 202 is contacted with second impeller 140；And the maximum of second promotion part 202 is wideDegree is less than 201 maximum width of the first promotion part；
As shown in figure 8, second impeller 140 includes connecting with first connecting portion 141, second connecting portion 142 and thirdSocket part 143；Second spring 160 is provided with outside the second connecting portion 142；It is provided with to connect on third connecting portion 143Connect the fixed column 144 of insertion section 600；
The second annular convex platform 150 for being used to support the second spring 160 is provided in the axostylus axostyle 210；
Second annular convex platform, 150 upper end is provided with first annular boss 800, second promotion part 202 canAcross the first annular boss 800；
The limiting chuck 500 being stuck on first annular boss 800 is provided on second promotion part 202；
Include at least two supporting plates 220 in the insertion section 600, arc groove 221 is provided on the supporting plate 220；InstituteIt states and the fixed column 144 is provided in arc groove 221.
In the present embodiment, first impeller 200 is moved up by operation portion 100, it is made not oppress the second promotionPart 140, since the second impeller 140 is not by the power of the first impeller 200, second spring 160 is by 140 bullet of the second impellerIt rises；Due to there is first annular boss 800 on the second impeller 140；The limit that second impeller 140 bounces is limited,During two impellers 140 bounce, the supporting plate 220 being connected on the second impeller 140 is opened.
The diameter of the first connecting portion 141 of second impeller 140 is more than the diameter of second spring 160, such first connectionIt portion 141 being capable of second spring 160 of the wedging ring outside second connecting portion 142；Second spring 160 is located at the second annular convex platform 150On, when the first impeller 200 pushes the second impeller 140 to move downward, first connecting portion 141 is by second spring 160Compression, the supporting plate 220 of insertion section 600 is merging phase so that it is convenient to which puncture needle is inserted into stomach wall at this time.
There is limiting chuck 500 on the second promotion part 202 of the first impeller 200, limiting chuck 500 cannot be from the first ringIt is passed through on shape boss 800, in this way when the first impeller 200 pushes the second impeller 140 to move downward, limits chuck500 can play the decline of the first impeller 200 of blocking, prevent what the first impeller 200 from pushing the second impeller 140 in this wayIt is excessive.
When the limiting chuck 500 on the second promotion part 202 is stuck in first annular boss 800, the support of insertion section 600Plate 220 keeps merging phase.
On above-described embodiment basis, further, first annular 800 upper end of boss is provided in axostylus axostyle 210The sliding part 300 of interior slip；The perforation to match with the first impeller 200 is provided in the sliding part 300.
Sliding part 300 is located on first annular boss 800, and the first impeller 200 can stretch on sliding part 300,Have perforation on sliding part 300, the first impeller 200 from perforation by when, the first promotion part 201 can be from sliding partIt is rotated by 90 ° after 300 be punched through；First promotion part 201 can be stuck on sliding part 300；In this way the first impeller 200 toWhen lower movement, sliding part 300 can be driven to move downward, realize and push down on the threading needle 700 on sliding part 300,Pass through supporting plate 220.
With reference to shown in Fig. 5, Fig. 6, on above-described embodiment basis, further, set on the sliding part 300 usefulIn the threading needle 700 of threading；
The threading needle 700 is L-shaped；Described 700 one end of threading needle is connected on the sliding part 300, other end directionThe insertion section 600；The cable clamping interface 701 for card line is provided on the threading needle 700, is opened under the cable clamping interface 701Mouth is less than the cable clamping interface 701.
The cable clamping interface 701 of threading needle 700 is used for the connection of suture, and when in use, sliding part 300 moves downward,Threading needle 700 is driven also to move downward, the suture on threading needle 700 is inserted into onto the supporting plate 220 of insertion section 600.
In order to which threading needle 700 is made to be inserted into onto the supporting plate 220 of insertion section 600, further, on the axostylus axostyle 210It is provided with the sliding slot 211 moved for threading needle 700；There is the arc for moving out threading needle 700 in 211 lower end of sliding slotShape mouth.
Threading needle 700 from the sliding slot 211 on axostylus axostyle 210 skid off when, due to opening be arc port, threading needle 700 is sent outRaw deformation, skids off along the direction of arc port, so as to be inserted on supporting plate 220；Threading needle 700 is made of NiTi pipe；In this way when threading needle 700 are used, threading needle 700 can be bent.
On above-described embodiment basis, further, the first spring 400 is provided in the axostylus axostyle 210；First bulletSpring 400 is arranged between first annular boss 800 and sliding part 300.
There is the first spring 400 on first annular boss 800, when the first promotion part 201 is stuck on sliding part 300, downwardsWhen pushing sliding part 300, sliding part 300 compresses the first spring 400, and sliding part 300 drives threading needle 700, inserts it intoInto supporting plate 220；When the first impeller 200 loses external force, sliding part 300 loses external force, and the first spring 400 will slidePortion 300 bounces, and so as to which sliding part 300 retracts threading needle 700 from supporting plate 220, returns in axostylus axostyle 210.
On above-described embodiment basis, further, it is provided on the supporting plate 220 perforative for threading needle 700Silica gel portion 170.
As shown in figure 3, the silica gel portion 170 on the supporting plate 220 of insertion section 600, on the movement locus of threading needle 700,When threading needle 700 is inserted on supporting plate 220, silica gel portion 170 is just inserted into, since silica gel has suction-operated, energyEnough to stay in suture in silica gel portion 170, in this way when threading needle 700 is returned from silica gel portion 170, suture stays in silica gelIn portion 170.
In this way, suture can be farther out wound, can have better sewing effect in this way.
On above-described embodiment basis, further, it is provided with to limit the first impeller on the axostylus axostyle 210The locating part 120 of 200 rotation angles is connected with the third spring for restoring locating part 120 on the locating part 120130。
As shown in figure 9, the locating part 120 on the first impeller 200 is useful for wearing for the first impeller 200 up and down motionHole, perforation is not round hole；The cross section of first promotion part 201 is non-circular, and such first promotion part 201 can be in locating part120 upper and lower directionss move, and when the first promotion part 201 rotates, locating part 120 is with rotation, the rotation angle of locating part 120Degree is restricted, and is limited in 90 °；When locating part 120 rotates, third spring 130 deforms upon, the first impeller 200When not by external force, third spring 130 restores locating part 120；Then the first impeller 200 restores to the original state.
On above-described embodiment basis, further, it is provided with what is connected for axostylus axostyle 210 on the operation portion 100Connector 101.
As shown in fig. 7, there is connector 101 on operation portion 100, operation portion 100 is connect by connector 101 with axostylus axostyle 210Together；This ensure that the position of the first impeller 200 is motionless；Such first impeller 200 makes the position of the second impeller 140Put fixation；The supporting plate 220 for being thus inserted into portion 600 keeps merging so that it is convenient to be inserted into stomach wall；Also have on insertion section 600Cutting sheet, after the skin of human body and tissue or scalpel cut-away portions can be directly cut with cutting sheet in this way, then it is practicalWhen, cutting sheet is further cut；So as to meet the requirement of operation, cutting sheet can be promoted through stomach wall layer, be can be used forRadial outward dilations wound, torn tissue is minimized.
Cutting sheet is blade, and metal or plastic products may be used in blade.
The present invention also provides a kind of wound closure devices, described outer including outer sleeve 190 and puncture needle described aboveParts casing pipe 190 is set in outside the puncture needle；The fluting threaded for threading needle 700 is provided on the outer sleeve 190191。
As shown in Fig. 2, in the present embodiment, there is fluting 191 on outer sleeve 190, use wound closure device whenIt waits, suture is connected in fluting 191 on threading needle 700；When wound closure device moves downward, follower transports downwardsIt is dynamic.
Further, the valve 180 for connecting feeder is provided on the outer sleeve 190；In the outsideIt is provided in casing 190 for the first seal 110 of sealing gas and second seal 900.
In the inactivation of operation, need to inject through gas intraperitoneal, the valve 180 set on outer sleeve 190 in this way isThe offer of gas is provided, in order to ensure that the gas of artificial pneumoperitoneum stops for a long time, facilitates and is taken in, first seal 110The diffusion of gas can be reduced with second seal 900.
Figure 1A -1M, the schematic diagram of the operation sequence of wound closure device；Puncture needle is inserted into outer sleeve 190,And promote puncture needle that suture both ends are stuck in threading needle 700 to the position that can be used immediately in outer sleeve 190In cable clamping interface 701, insertion section 600 is inserted into stomach wall；Puncture needle is promoted to designated position, it is ensured that insertion section 600 can separate；The connector 101 of operation portion 100 and axostylus axostyle 210 are separated, the second impeller 140 on such puncture needle moves upwards, and makes to insertEnter portion 600 to open automatically；Continue above to carry wound closure device, insertion section 600 is enable to be close to fascia layer, convenient for follow-up threading needleDuring 700 insertion fascia layer, displacement will not be caused.
It continues up and carries the first impeller 200, the first pushing part is made to be located on sliding part 300, and be rotated by 90 °, make itIt is stuck on sliding part 300.It pushes the first pushing part downward, moves downward sliding part 300, sliding part 300 drives threading needle700 move downward, and threading needle 700 is pierced by from the arc groove 221 of axostylus axostyle 210；Threading needle 700 is just inserted into the silicon of supporting plate 220Glue portion 170.
At this point, unclamp to the pressure of operation portion 100, sliding part 300 by the first spring 400 effect, by sliding part 300It bounces, such sliding part 300 drives threading needle 700 to return, and threading needle 700 is detached from silica gel portion 170, and suture is attracted to silica gelPortion 170；By rotating the first impeller 200, enable itself and 300 relative motion of sliding part, continue through the first impeller200 push the second impeller 140, and the supporting plate 220 for inserting it into portion 600 closes up；Puncture needle and outer sleeve 190 can be taken offFrom leaving outer sleeve 190 and perform the operation；Re-treatm ent removes outer sleeve 190 after completing, its suture free end is beatenKnot, realizes the suture of wound.
The puncture needle and wound closure device of the present invention, thoroughly solves the problems, such as that holdfast exists, either after surgeryTo having good improvement in the personal safety of patient or to less necessary injure in art.In addition, due to holdfast material spyVery, material is in itself and processing charges is high, this influences greatly the total cost of product, and this programme use is also being passed through without anchor structureThe burden of patient is alleviated in Ji.Suture caused by also having evaded narrow portion simultaneously is from wound too closely so as to bad there are sewing effectThe problem of.
Suture is fixed on insertion section 600, then lead to by puncture needle and wound suture provided by the invention with threading needle 700It crosses and takes out puncture needle from outer sleeve 190, realize the suture to wound, such suture does not need to holdfast；It can expireWhile sufficient laparoscopic surgery, when suture, holdfast will not be left in abdominal cavity, is only sutured by suture, thisSample improves safety, avoids holdfast and falls into abdominal cavity, human body is damaged；The supporting plate 220 of insertion section 600 can be opened simultaneouslyIt opens, suture can be fixed on from wound remote position, after such suture passes through fascia layer, seam by such threading needle 700The effect of conjunction is more preferable.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extentPipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according toCan so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features intoRow equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solutionThe range of scheme.