CN109984814A - A kind of fixation kit - Google Patents

Abstract

The invention discloses a kind of fixation kits, for first element and second element separation, including fixed block and ontology, the fixed block to be fixedly connected with the ontology；The fixed block includes through-hole, and the ontology is provided with the accommodation groove for accommodating the second element, and the through-hole is correspondingly arranged with the accommodation groove；The through-hole allows the distal end of the first element and the second element to pass through, and allows the distal end of first element to exit and the second element is prevented to be detached from the accommodation groove, realizes the separation of the first element and the second element.Fixed structure according to the present invention, the distal end and the second element for allowing the first element pass through, and allows the distal end of first element to exit and the second element is prevented to be detached from the accommodation groove, realize the separation of the first element and the second element, effectively to realize the suture of puncturing hole in narrow puncturing hole；Puncturing hole hernia caused by avoiding because of Minimally Invasive Surgery puncturing hole.

Description

A kind of fixation kit

Technical field

The present invention relates to a kind of surgical instruments, in particular to a kind of fixation kit.

Background technique

Laparoscopic surgery has been widely accepted in surgical operation, relative to conventional open surgery, laparoscopic surgery With many advantages, including damage is reduced, healing faster, infection risk reduces.It checks in abdominal cavity, abdominal operation and other are minimally invasive Or in surgical operation, puncture outfit is essential surgical instrument.Puncture outfit can be established in the stomach wall of human body enters channel, It is intraperitoneal to enter for stapler or other surgical instruments (such as endoscope, scissors, seal wire, conduit, filter, bracket), and The channel of offer gas disengaging, to control the required pneumoperitoneum of operation, to carry out inspection or surgical procedure.Puncture outfit is a kind of abdomen For establishing the surgical instrument into the artificial channel of body cavity in endoscope-assistant surgery, usually by sealing sleeve pipe component and puncture core assembly Composition.Its clinical general usage mode are as follows: first cut osculum on patient skin, then the cutting tip alignment of puncture outfit is scratched Small notch or so reciprocating rotation while move down puncture outfit, after puncture outfit enters body cavity, puncturing core assembly can be taken It walks, leaves channel of the sealing sleeve pipe component as stapler or other surgical instruments disengaging body cavity.Existing puncture core assembly is only Play the role of puncture, after guidance sealing sleeve pipe component enters patient's body from the notch of human abdomen, that is, is dropped.

After lesion is removed, sealing sleeve pipe components are taken out, operation terminates.The wound of puncture does not suture generally, only It heals automatically by patient；Because the puncturing hole of Minimally Invasive Surgery is small and deep, the stomach wall of especially obese patient is thicker, the visual field of suture It is small, only after surgery by the skin closure of patient surface, it is difficult to by the peritoneal stitches on the inside of stomach wall.Patient is easy to produce after surgery in this way The serious complication such as raw puncturing hole hernia, need further to treat.It is especially fat when that must be sutured to the puncturing hole of patient The puncturing hole of patient can only use the stitching unstrument of special suture puncturing hole, but needs are additional in this way increases surgical instrument, suture Higher cost, and surgical instrument is various, inconvenient；Also, structure is complicated for the stitching unstrument of special suture puncturing hole, using not Just.

Summary of the invention

In view of the deficiencies of the prior art, the present invention is intended to provide a kind of not only have the function of to puncture, but also puncturing hole can be sutured Core assembly and the puncture outfit with it are punctured, the invention is realized by the following technical scheme:

A kind of fixation kit is used to separate first element and second element, including fixed block and ontology, the fixed block It is fixedly connected with ontology；The fixed block includes through-hole, and the ontology is provided with the accommodation groove for accommodating the second element, described Through-hole is correspondingly arranged with the accommodation groove；The through-hole allows the distal end of the first element and the second element to pass through, and Allow the distal end of first element to exit and the second element is prevented to be detached from the accommodation groove, realizes the first element and institute State the separation of second element.

The main part of the fixed block is flat cylindrical body, thereon includes at least two through slots.

The fixed block includes two through slots.

The through-hole is located in the through slot, and the diameter of the through-hole proximal end is greater than the width positioned at the through slot.

The through-hole is including being the first hole and the second hole, and the diameter of first hole is greater than second hole Diameter, the diameter of second hole are greater than the diameter of the first element far-end.

The diameter of second hole is less than the diameter of the second element proximal end.

The accommodation groove is adapted to the second element profiling, and the accommodation groove and the fit system of the second element are Interference fit.

The two sides of each through slot respectively have the other side of a deformation piece, each deformation piece to be equipped with recessing groove.

The first element is sewing needle, and the second element is detachable needle point.

The detachable needle point includes winding slot, and the winding slot states suture for accommodating and fixing.

The proximal end of each fixed block is additionally provided with anti-skid chequer.

The upper surface of the fixed block is arranged to arcwall face.

Fixation kit according to the present invention allows the distal end of the first element and the second element to pass through, and allows The distal end of first element is exited and the second element is prevented to be detached from the accommodation groove, effectively realizes the first element and institute The separation of second element is stated, to realize the suture of puncturing hole in narrow puncturing hole；Caused by avoiding because of Minimally Invasive Surgery puncturing hole Puncturing hole hernia.

Detailed description of the invention

Fig. 1 is the structural schematic diagram according to an embodiment of the present invention for puncturing core assembly；

Fig. 2 is the cross-sectional view according to an embodiment of the present invention for puncturing core assembly；

Fig. 3 is the structural schematic diagram according to an embodiment of the present invention for puncturing bar assembly；

Fig. 4 is the structural schematic diagram of bar assembly according to an embodiment of the present invention first；

Fig. 5 a is the structural schematic diagram of bar assembly according to an embodiment of the present invention second；

Fig. 5 b is another angled arrangement schematic diagram of bar assembly according to an embodiment of the present invention second；

Fig. 6 is the structural schematic diagram of knob according to an embodiment of the present invention；

Fig. 7 is the structural schematic diagram of suture needle component according to an embodiment of the present invention；

Fig. 8 is the structural schematic diagram of detachable needle point according to an embodiment of the present invention；

Fig. 9 is the structural schematic diagram of cutting tip component according to an embodiment of the present invention；

Figure 10 a is the top view of fixed block according to an embodiment of the present invention；

Figure 10 b is another structural schematic diagram of fixed block according to an embodiment of the present invention；

Figure 10 c is the cross-sectional view in the edge suture channel of fixed block according to an embodiment of the present invention；

Figure 11 is the structural schematic diagram according to an embodiment of the present invention for puncturing core assembly original state；

Figure 12 is that puncture core assembly according to an embodiment of the present invention forms the structural schematic diagram after Oversewing space；

Structural schematic diagram when Figure 13 is the suture according to an embodiment of the present invention for puncturing core assembly；

Figure 14 is the structural schematic diagram after destination organization according to an embodiment of the present invention is sewn；

Figure 15 is the structural schematic diagram of puncture outfit according to an embodiment of the present invention.

Specific embodiment

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.It is retouched in of the invention In stating, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ", " counterclockwise ", " axis To ", " radial direction ", the orientation or positional relationship of the instructions such as " circumferential direction " be to be based on the orientation or positional relationship shown in the drawings.In addition, art Language " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate institute The quantity of the technical characteristic of instruction." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least One this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise bright It is really specific to limit.

The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to be used to explain the present invention, and cannot understand For limitation of the present invention.As shown in Figure 1, the puncture core assembly 100 of the embodiment of the present invention includes cutting tip component 1, puncturing lever Component 2 and suture key 31.For the convenience of describing the present invention and simplifying the description, in embodiments of the present invention, it will be close to clinical doctor Raw one end is " proximal end " or " top ", and will be far from one end of clinician i.e. close to one end of patient body for " distal end " or " lower section ".Based on attached orientation or positional relationship shown in FIG. 1, will be close to suture key 31 one end be considered as " proximal end " or " on Side ", the one end that will be close to cutting tip 1 is considered as " distal end " or " lower section "；The axial direction for puncturing core assembly 100 is known as " height " The radial direction for puncturing core assembly 100 is known as " width " direction by direction；Direction is punctured to the side of 100 central axis of core assembly To be considered as " inside ", will be far from puncture 100 central axis of core assembly direction be considered as " outside ".

As shown in Figure 1, puncturing core assembly 100 includes puncturing bar assembly 2, the cutting tip for puncturing 2 distal end of bar assembly being arranged in The knob 5 for puncturing 2 proximal end of bar assembly and suture key 31 is arranged in component 1, and puncturing core assembly 100 further includes the first interior bar group Bar assembly 4 in part 3 and second.Fig. 2 is the cross-sectional view of the puncture core assembly 100 of the embodiment of the present invention, and which depict puncture core group The composition and assembly relation of part 100.It punctures core assembly 100 and is followed successively by second bar assembly 3 in bar assembly 4, first from the inside to the outside With puncture bar assembly 2.At least part of bar assembly 4 is located in first in bar assembly 3 in second, and bar assembly 3 is extremely in first Few a part, which is located at, to be punctured in bar assembly 2；And the central axis of bar body 40 in second, in first bar body 30 central axis It is overlapped with the central axis for puncturing bar body 20.At least part of bar assembly 4 is located in first in bar assembly 3 in second, The positional relationship both referred to, not the component part of bar assembly 4 is respectively positioned in first in bar assembly 3 in second.

With reference to Fig. 3, puncturing bar assembly 2 includes puncturing bar body 20, and puncture bar body 20 is elongated cylindrical body, inside Including suture channel 23 up and down, bar body 30 is located in suture channel 23 in first, and can be relative to suture channel 23 move up and down.The proximal end for puncturing bar body 20 is equipped with the blocker ring 26 radially extended to form, is equipped with above blocker ring 26 Handle 24, handle 24 are hollow cylinder, and the diameter of blocker ring 26 is greater than the diameter of handle 24, and the diameter of handle 24, which is greater than, to be punctured The diameter of bar body 20, the outer wall of handle 24 are symmetrically arranged with two retention beads 25.The distal end for puncturing bar body 20 is symmetrically arranged with Needle accommodating groove 22, for accommodating sewing needle 7 and detachable needle point 8.Needle accommodating groove 22 extends to the distal end for puncturing bar body 20, needle The length of accommodating groove 22 is equal or slightly larger than the length of sewing needle 7, and the distal end of needle accommodating groove 22 is additionally provided with barrier portion 21, for limiting Sewing needle 7 and detachable needle point 8 processed are axially moved in needle accommodating groove 22.Needle accommodating groove 22 limits bar body in first in this way 30 can only can not circumferentially rotate puncturing up and down motion in bar assembly 2.In addition, puncture bar body 20 at barrier portion 21 Protrusion (not shown) at inner wall, abuts with the distal end of the first elastic element 35.

With reference to Fig. 4 or Fig. 2, in first bar assembly 3 include first in bar body 30, with first in 30 proximal end of bar body fix The suture key 31 of connection.The distal end of bar body 30 is additionally provided with the first elastic element 35, optionally, the first elastic element in first 35 be spring, and the distal end of bar body 30 is fixedly connected with the first elastic element 35 in first.The inside shape of bar body 30 in first At chamber (not shown) up and down, bar body 40 is located at described intracavitary in second, and can be in intracavitary up and down motion.First interior bar 30 proximal end of ontology is also symmetrically arranged with the first waist-shaped hole 34, and the distal end of bar body 30 is symmetrically arranged with and 7 phase interworking of sewing needle in first The first mounting portion 33 closed, the first waist-shaped hole 34 and the first mounting portion 33 are on the same line.Bar assembly 3 in first is protruded into and is worn Behind the distal end of thorn stick component 100, the needle that bar assembly 3 makes the alignment of its first mounting portion 33 puncture bar body 20 in adjustment first is stored Slot 22, in order to by sewing needle 7 from needle accommodating groove 22 with the first mounting portion 33 interference fit or transition fit, two sewing needles 7 with after bar body 30 is fixedly connected in first, be incorporated in respectively in the needle accommodating groove 22 for puncturing 20 distal end of bar body.Detachably Needle point 8 is separably attached to the distal end of sewing needle 7, and in order to clearly show that positional relationship, suture 9 is omitted in Fig. 4.

As shown in Fig. 5 a to Fig. 5 b, in second bar assembly 4 include bar body 40 in second, with second in the distal end of bar body 40 The cutting tip component 1 that is fixedly connected, with 40 proximal end of bar body is fixedly connected in second connector 41.Bar body 40 in second In first in bar body 30 and the first elastic element 35.The maximum gauge of 1 proximal end of cutting tip component is substantially equal to puncturing lever sheet The diameter of body 20, distal end are puncture tip.Cutting tip component 1 substantially refers to that cutting tip 1 is in cone substantially in cone Cone or similar cone, i.e., the bus of cutting tip component 1 can be linear, can also be in convex outer curve or in indent Curve.Bar body 40 successively includes first body of rod 44, second body of rod 45 and the third body of rod 46, the third body of rod from the near to the remote in second For 46 cross-sectional area less than the cross-sectional area of second body of rod 45, the cross-sectional area of second body of rod 45 is transversal less than first body of rod 44 Area.As shown in Figure 5 a, the peripheral dimension of first body of rod 44, second body of rod 45 and the third body of rod 46 is also sequentially reduced.Third bar Body 46 is cylindrical body or cuboid, and cross-sectional area is less than the cross-sectional area for puncturing bar body 20, in cutting tip 1 and puncturing lever Accommodating space is formed between ontology 20；When it is cylindrical body, diameter is less than the diameter for puncturing bar body 20, when it is rectangular When body, width and length are respectively less than the diameter for puncturing bar body 20.Under the premise of the intensity needed for meeting, the third body of rod 46 Cross-sectional area is the smaller the better, in this way, between the proximal end of cutting tip 1 and the distal end for puncturing bar body 20 accommodating space that is formed compared with Greatly.Further, the central axis of bar body 40 is overlapped with the central axis for puncturing bar body 20 in second.Cutting tip component 1 The thickness of patient's hypodermis can be more than or equal to relative to the distance for the distal movement for puncturing bar body 20.

With reference to Fig. 5 b, connector 41 includes shaft 411, step 412 and through-hole 413.The proximal end position of bar body 30 in first In in through-hole 413, bar body 40 is located in first in bar body 30 in second.The central axis of bar body 30, second in first The central axis of interior bar body 40 and the central axis of connector 41 are overlapped.The proximal end of bar body 40 is also symmetrically arranged in second Second waist-shaped hole 43, pin shaft is (not shown) after the first waist-shaped hole 34, the second waist-shaped hole 43, is fixedly connected with connector 41. The flute length of first waist-shaped hole 34 is greater than the flute length of the second waist-shaped hole 43, and the flute length of the second waist-shaped hole 43 is greater than the diameter of pin shaft；The The groove width of one waist-shaped hole 34 is equal with the groove width of the second waist-shaped hole 43, is slightly larger than the diameter of the pin shaft, such pin shaft limitation Bar body 40 can only move up and down in first in bar body 30 and can not circumferentially rotate in second.

With reference to Fig. 6, knob 5 is hollow cylindrical shell, and side wall is equipped with limiting slot 51.Puncture the limit of bar assembly 2 Protrusion 25 can move in limiting slot 51, accordingly with two retention beads 25, set that there are two limiting slots on the side wall of knob 5 51.Each limiting slot 51 includes first segment 51a, second segment 51b, third section 51c, and wherein first segment 51a and third section 51c is in straight Line style, intermediate second segment 51b are shaped form, and the successively smooth connection of three sections of limiting slot 51, whole is substantially in serpentine.Limit The first segment 51a of slot 51 is initial position, and the first positioning key 511 is equipped on the inside of slot, and second segment 51b is to adjust travel position, Third section 51c is final position, the second positioning key 512 is equipped on the inside of slot, when retention bead 25 is located at initial position or terminal When position, the first positioning key 511 or the second positioning key 512 are respectively used to fix retention bead 25, prevent unexpected movement, First positioning key 511 and the second positioning key 512 are the lesser protrusion of height.In order to facilitate turning knob 5, outer surface is equipped with the One anti-skid chequer 52 with increasing friction force and then plays anti-skidding effect.With reference to Fig. 5 b and Fig. 6, knob 5 is additionally provided with ring-like hole wall 53, ring-like hole wall 53 wraps the shaft 411 of connector 41 and the step 412 of the lower surface and connector 41 of ring-like hole wall 53 Upper surface abuts.

Suturing assembly includes sewing needle 7 and detachable needle point 8, as shown in fig. 7, sewing needle 7 and detachable needle point 8 can be detached from Ground is connected, and the sewing needle 7 and detachable needle point 8 after connection pass through the accommodating space by mobile one end by suture 9 Interior tissue.Sewing needle 7 includes the second mounting portion 71 and first connecting portion 72, and sewing needle 7 passes through the second mounting portion 71 and first First mounting portion 33 of interior bar body 30 is interference fitted or transition fit achieves a fixed connection, the distance between two sewing needles 7 Equal to or slightly less than the diameter for puncturing bar body 20.With reference to Fig. 8, detachable needle point 8 is equipped with the blind hole of opening upwards, the blind hole For second connecting portion 82, the first connecting portion 72 of 7 distal end of sewing needle protrudes into second connecting portion 82, and first connecting portion 72 and second connect The connection type of socket part 82 is clearance fit；Detachable needle point 8 further includes needle point 83 and winding slot 81, and winding slot 81 is located at the The side wall of two interconnecting pieces 82 or lower section, the line tail 91 of suture 9 are wrapped on winding slot 81 and are formed at winding slot 81 knot, Two line tails 91 of suture 9 respectively cooperate with a detachable needle point 8, and the proximal end 92 of suture 9 is along the outer of puncture bar body 20 Wall upwardly extends.

As shown in figure 9, cutting tip component 1 includes cutting tip ontology 10 and fixed block 6, the proximal end of cutting tip ontology 10 is equipped with Symmetrically arranged accommodation groove 11, for accommodating the distal end of detachable needle point 8 and suture 9 after suturing；Accommodation groove 11 be arranged to The fit system of the slot of detachable 8 profiling of needle point adaptation, detachable needle point 8 and accommodation groove 11 is interference fit.Cutting tip ontology 10 proximal end is additionally provided with mounting hole 13, and accordingly, the distal end of fixed block 6 is equipped with axially extending mounting post 66, mounting post 66 with The quantity of mounting hole 13 corresponds, and realizes fixed block 6 and cutting tip sheet by mounting post 66 and the interference fit of mounting hole 13 Body 10 is fixedly connected.Cutting tip component 1 is equipped with and the hole that bar assembly 4 is fixedly connected in second, specifically, the second interior bar group After the distal end of part 4 passes through the second interior bar mounting hole 65 on fixed block 6, with the second interior bar fixation hole 12 on cutting tip ontology 10 It is fixedly connected.

With reference to shown in Figure 10 a to Figure 10 c, the main part of fixed block 6 is flat cylindrical body, includes on flattened cylinder Through slot 61, preferably, in one embodiment of the invention, fixed block 6 includes two through slots 61, and the company of two through slots 61 Line passes through the center of circle of fixed block 6, and the length of each through slot 61 is less than the radius of fixed block 6, and the width of through slot 61 is less than sewing needle 7 First connecting portion 72 diameter, the position corresponding with accommodation groove 11 of through slot 61 expands outwardly to form sewing needle through-hole 62；Each The two sides of through slot 61 respectively have the other side of a deformation piece 64, each deformation piece 64 to be equipped with recessing groove 63.Sewing needle through-hole 62 wraps Include the diameter for being greater than the second hole 62b for the diameter of the first hole 62a and the second hole 62b, the first hole 62a, the second hole The diameter of 62b is greater than the diameter of the first connecting portion 72 of sewing needle 7.As shown in figure l0c, the first hole 62a and the second hole 62b The section of inner wall is in stepped, inclined-plane or cambered surface.In this way when suturing assembly sequentially passes through sewing needle through-hole 62, sewing needle through-hole The deformation piece 64 of 62 two sides is extruded towards recessing groove 63 and deforms, to allow detachable needle point 8 logical across sewing needle from the near to the distant Hole 62 enters in accommodation groove 11, because the diameter of the second hole 62b is greater than the diameter of the first connecting portion 72 of sewing needle 7, and second The diameter of hole 62b is less than the diameter of detachable 8 proximal end of needle point.Sewing needle 7 can be sutured by sewing needle through-hole 62, suture It can also be retracted to the needle accommodating groove 22 for the distal end for puncturing bar body 20 by sewing needle through-hole 62 afterwards.When detachable needle point 8 Into after accommodation groove 11, the diameter of 62 second hole 62b of sewing needle through-hole is less than the diameter of detachable 8 proximal end of needle point, sewing needle Through-hole 62 can effectively prevent detachable needle point 8 from moving upwards, and avoid the wind that detachable needle point 8 falls off out of accommodation groove 11 Danger.Optionally, sewing needle through-hole 62 further includes third hole 62c, and third hole 62c is identical as the diameter of accommodation groove 11；First Hole 62a, the second hole 62b, third hole 62c coaxial arrangement.

In another embodiment of the present invention, as shown in fig. lob, camber can also be arranged in the upper surface of fixed block 6 Face, the upper surface to increase fixed block 6 increase Oversewing space at a distance from puncture 2 distal end of bar assembly.Such as Fig. 9 or Figure 10 c institute Show, the upper surface of fixed block 6 is additionally provided with the second anti-skid chequer 67, and the frictional force of tissue to be stapled that can increase and clamp prevents When suture, tissue to be stapled is slipped from the space.In order to clearly show that the structure of fixed block 6, omitted in Figure 10 b, Figure 10 a Second anti-skid chequer 67.

The line tail 91 of suture 9 is wrapped on winding slot 81 and forms knot, two lines of suture 9 at winding slot 81 After tail 91 respectively cooperates with a detachable needle point 8, the second connecting portion of the first connecting portion 72 of sewing needle 7 and detachable needle point 8 After 82 connections, sewing needle 7 and detachable needle point 8 are set in needle accommodating groove 22, and the length of needle accommodating groove 22 is equal or slightly larger than The length of sewing needle 7；And the outer surface of sewing needle 7 and detachable needle point 8 is stitched in this way without departing from the outer surface for puncturing bar body 20 Close needle 7 suture when apart from puncturing hole farther out, the distance between two sewing needles 7 be equal to or slightly less than puncture bar body 20 it is straight Diameter provides maximum suture size to guarantee under the premise of not expanding puncturing hole.

When operation, a small notch first is scratched in patient abdomen, then the puncture tip 14 of puncture outfit 300 of the present invention is aligned Puncture outfit 300 is moved down while small notch scratched or so reciprocating rotation, until the distal end of sheath assembly 200 passes through patient Abdomen cortex is to suitable position；When original state, retention bead 25 is located in the first segment 51a of limiting slot 51, by the first positioning The limiting slot 51 of the constraint of key 511, the retention bead 25 and knob 5 that puncture bar assembly 2 keeps opposing stationary, cutting tip component 1 Proximal end is abutted with the distal end for puncturing bar body 20, gapless between such cutting tip 1 and puncture bar body 20, when puncture, will not Clip to the tissue of patient.Then it extracts and punctures core assembly 100, stapler or other surgical instruments can pass through puncture cannula component 200 disengaging abdominal cavity of patients are operated.

After intraperitoneal operation, the puncture core assembly 100 of the embodiment of the present invention is inserted again by sheath assembly 200 Enter patient's body, in order to clearly show that the mutual cooperation relationship for puncturing each component of core assembly 100, Figure 11 is omitted into Figure 13 Sheath assembly 200.With reference to Figure 11, retention bead 25 is located in the first segment 51a of limiting slot 51, the proximal end of cutting tip component 1 with The distal end for puncturing bar body 20 abuts, gapless between such cutting tip 1 and puncture bar body 20.When puncture core assembly 100 After puncture tip 14 reaches target position, turning knob 5, as shown in figure 12, retention bead 25 is by external force, from first segment 51a is moved to second segment 51b, and the ring-like hole wall 53 of knob 5 is rotated around the shaft 411 of connector 41, because under ring-like hole wall 53 Surface is abutted with the upper surface of the step 412 of connector 41, and 412 stress of step moves downward, and band follower link 41 moves downward, Bar assembly 4 in second are transmitted the force to by the pin shaft of bar assembly 4 in second, run through the first waist-shaped hole because pin shaft is (not shown) 34, it after the second waist-shaped hole 43, is fixedly connected, is limited by pin shaft and the first waist-shaped hole 34, bar body in second with connector 41 40 and cutting tip 1 move downward, thus cutting tip component 1 and puncture bar body 2 between form accommodating space.

Knob 5 is continued to rotate, until retention bead 25 moves at third section 51c, at this point, the distal end of knob 5 and puncture The blocker ring 26 of bar assembly 2 abuts, and blocker ring 26 prevents knob 5 from continuing to rotate.Meanwhile by the constraint of the second positioning key 512, limit Position protrusion 25 keeps opposing stationary with limiting slot 51, keeps opposing stationary with knob 5 to puncture bar assembly 2, the second interior bar group Part 4 no longer moves downward, to reach required accommodating space.At this point, core assembly will be punctured by holding the proximal end of puncture core assembly 100 100 slowly move up, until the lower layer contacts of the clamping face of the distal end of the fixed block 6 of cutting tip component 1 and destination organization.By Tissue at the elasticity of tissue, puncturing hole is gradually filled with the accommodating space, i.e. tissue encapsulation at puncturing hole lives The third body of rod 46 of bar assembly 4 in two fills up the accommodating space between the proximal end of fixed block 6 and the distal end of puncture bar assembly 2.

Then, downwards by suture key 31, as shown in figure 13, suture key 31 pushes bar body 30, sewing needle 7 in first And detachable needle point 8 moves downward simultaneously, 35 stress of elastic element is compressed, two respective first connecting portions 72 of sewing needle 7 Detachable needle point 8 is guided respectively while two end line tails 91 of suture 9 being driven to move downward.Figure 14 illustrates the embodiment of the present invention The process that is sewn of destination organization.The skin ecto-entad of human body is followed successively by epidermis, skin corium, subcutaneous tissue, as long as will Fascia layer suture at undermost subcutaneous tissue F at patient's puncturing hole, puncturing hole just will not open, and be easy to epidermis and true Cortex heals automatically, can effectively prevent the generation of puncturing hole hernia；Preferably, it knots in the skin corium E of patient's puncturing hole, this Sample, knot are located in puncturing hole, do not expose the skin of patient, with prevent it is postoperative encounter knot, because the subcutaneous tissue of patient has stitched It closes, puncturing hole just will not open, be easy to epidermis or skin corium heal automatically.Preferably, suture 9 is that human body is absorbable Suture.Two respective first connecting portions 72 of sewing needle 7 guide detachable needle point 8 respectively and then drive the both ends of suture 9 The accommodating that line tail 91 came into contact with and pierced fixed block 6 from A, B two o'clock of subcutaneous tissue F respectively and punctures between bar assembly 2 is empty Interior tissue, and detachable needle point 8 is guided to be installed in the accommodation groove 11 on cutting tip 1, two end line tails 91 of suture 9 divide The fascia layer from subcutaneous tissue F is not penetrated from D, C two o'clock.Since tissue has elasticity, the tissue encapsulation at puncturing hole is lived The third body of rod 46 of bar assembly 4 in second, thus sewing needle 7 guides detachable needle point 8 can be from A, B dual-point entry, from D, C two o'clock It is pierced by.(show that sewing needle 7 pierces patient completely when in the accommodation groove 11 that detachable needle point 8 has been fixed on cutting tip 1 Subcutaneous tissue), because the line tail 91 of suture 9 forms knot at winding slot 81 in advance, detachable needle point 8 is by suture 9 Line tail 91 introduces below the subcutaneous tissue F of patient.When two end line tails 91 of suture 9 penetrate subcutaneous tissue F from D, C two o'clock respectively Afterwards, the proximal end for puncturing core assembly 100 is held, core assembly 100 will be punctured by, which continuing, moves downward a trip, in this way, cutting tip group Part 1 drives the line tail 91 of the suture 9 in accommodation groove 11 to continue to intraperitoneal movement a trip, and the distance of the stroke is greater than The thickness of subcutaneous tissue F, can compensate for subcutaneous tissue F even include skin corium and epidermis thickness, continue movement stroke make Line tail 91 is being diverted and while moving upwards can be drawn out from subcutaneous tissue F and even be drawn out out of abdominal wall, make simultaneously The distal end of suture 9 progresses into patient's body, convenient for pulling out suture.

Then, release suture key 31, the first elastic element 35 is released and extends, remote because of the first elastic element 35 End is abutted with the protrusion (not shown) at the inner wall of the puncture bar body 20 at barrier portion 21, bar body 30 in proximal end and first Distal end abut, the elastic restoring force of the first elastic element 35 pushes bar assembly 3 in first to move upwards, bar body 30 in first Sewing needle 7 is driven to move upwards, because the fit system of detachable needle point 8 and the accommodation groove 11 of cutting tip 1 is interference fit, cooperation Detachable needle point 8 is difficult to separate with accommodation groove 11 afterwards, and sewing needle 7 and detachable 8 clearance fit of needle point；So release suture is pressed After key 31, bar body 30 drives sewing needle 7 to separate with detachable needle point 8 in first, and sewing needle 7, which is retracted to, punctures bar body 20 In the needle accommodating groove 22 of distal end, detachable needle point 8 is located in the accommodation groove 11 of cutting tip 1.

It referring again to Figure 14, holds puncture outfit 300 and moves up puncture outfit 300, until the puncture tip of cutting tip component 1 End 14 is detached from patient, and detachable needle point 8 is fixedly connected with accommodation groove 11, and detachable needle point 8 is detached from together with cutting tip component 1 Patient's is internal, and because the line tail 91 of suture 9 is connect with detachable needle point 8, the line tail 91 of suture 9 is located at patient's hypodermis Lower section, during cutting tip 1 leaves patient's body, two line tails 91 of suture 9 move up from puncturing hole, from And convenient for line tail 91 is pulled out abdominal cavity by cutting tip component 1.Cutting tip component 1 be detached from patient it is internal after, tense suture 9 Two line tails 91 and after knotting, remove extra suture 9, that is, complete the suture of puncturing hole.As long as at patient's puncturing hole Subcutaneous tissue suture, the generation of puncturing hole hernia can be effectively prevent；Preferably, it knots in the skin corium of patient, in this way, knot In puncturing hole, do not leak out the skin of patient, with prevent it is postoperative encounter knot, because of the fascia layer at the subcutaneous tissue of patient Suture, puncturing hole just will not open, be easy to epidermis or skin corium heals automatically.Preferably, suture 9 is absorbable for human body Suture.

Core assembly 100 is punctured based on as described above, the present invention also provides a kind of puncture outfits 300, with reference to Figure 15, puncture outfit 300 further include sheath assembly 200, when puncture, punctures core assembly 100 and is inserted into puncture cannula component 200, and guiding sleeve component 200 enter in abdominal cavity of patients, are operated so that other surgical operating instruments enter patient's body, in cutting suture operation After, puncture outfit 300 of the invention can also suture puncturing hole.

In conclusion fixation kit according to the present invention, allows the distal end of the first element and the second element logical It crosses, and allows the distal end of first element to exit and the second element is prevented to be detached from the accommodation groove, effectively realize described first The separation of element and the second element, to realize the suture of puncturing hole in narrow puncturing hole；It avoids wearing because of Minimally Invasive Surgery Puncturing hole hernia caused by acanthopore.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.

Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (12)

1. a kind of fixation kit, for first element and second element to be separated, which is characterized in that including fixed block and ontology, The fixed block is fixedly connected with the ontology；The fixed block includes through-hole, and the ontology is provided with described second yuan of accommodating The accommodation groove of part, the through-hole are correspondingly arranged with the accommodation groove；The through-hole allows the distal end of the first element and described Second element passes through, and allows the distal end of first element to exit and the second element is prevented to be detached from the accommodation groove, realizes institute State the separation of first element and the second element.

2. fixation kit according to claim 1, which is characterized in that the main part of the fixed block is flat cylinder Body includes at least two through slots thereon.

3. fixation kit according to claim 1, which is characterized in that the fixed block includes two through slots.

4. fixation kit according to claim 3, which is characterized in that the through-hole is located in the through slot, the through-hole The diameter of proximal end is greater than the width positioned at the through slot.

5. fixation kit according to claim 1, which is characterized in that the through-hole includes for the first hole and second segment Hole, the diameter of first hole are greater than the diameter of second hole, and the diameter of second hole is greater than described first yuan The diameter of part far-end.

6. fixation kit according to claim 1, which is characterized in that the diameter of second hole is less than described second yuan The diameter of part proximal end.

7. fixation kit according to claim 1, which is characterized in that the accommodation groove and the second element profiling are suitable Match, the fit system of the accommodation groove and the second element is interference fit.

8. fixation kit according to claim 1, which is characterized in that respectively there are a deformation in the two sides of each through slot Piece, each deformation piece the other side be equipped with recessing groove.

9. fixation kit according to claim 1, which is characterized in that the first element be sewing needle, described second yuan Part is detachable needle point.

10. fixation kit according to claim 9, which is characterized in that the detachable needle point includes winding slot, it is described around Wire casing states suture for accommodating and fixing.

11. fixation kit according to claim 1, which is characterized in that the proximal end of each fixed block is additionally provided with anti-skid chequer.

12. fixation kit according to claim 1, which is characterized in that the upper surface of the fixed block is arranged to arcwall face.