CN109793557A - A kind of puncture core assembly and the puncture outfit with it - Google Patents

Abstract

The invention discloses a kind of puncture core assemblies, including piercing assembly, suturing assembly and adjusting unit；The piercing assembly includes cutting tip and puncturing lever, and the suturing assembly is located in the puncturing lever, and at least part of the suturing assembly can move in the puncturing lever；Accommodating space is formed between the cutting tip and the puncturing lever, the adjusting unit includes knob, and the height of the accommodating space is controlled by rotating the knob；By the movement of the suturing assembly, one end of suture is passed through into the tissue in the accommodating space.Puncture core assembly according to the present invention and the puncture outfit with it, it does not need to expand puncturing hole, had been able to achieve the effect of puncture not only to establish channel, but also can realize the suture of puncturing hole in narrow puncturing hole, and suture height can be adjusted according to the individual difference of destination organization；Puncturing hole hernia caused by capable of effectively avoiding because of Minimally Invasive Surgery puncturing hole, conducive to the postoperative rehabilitation of patient.

Description

A kind of puncture core assembly and the puncture outfit with it

Technical field

The present invention relates to a kind of surgical instruments to belong in particular to a kind of puncture core assembly and with its puncture outfit In area of medical devices.

Background technique

Check, in abdominal operation and other minimally invasive or surgical operations that puncture outfit is essential surgical instrument in abdominal cavity. Puncture outfit can be established in the stomach wall of human body enters channel, so that for stapler or other surgical instruments, (such as endoscope is cut Knife, seal wire, conduit, filter, bracket etc.) enter it is intraperitoneal, and provide gas disengaging channel, with control operation needed for gas Abdomen, to carry out inspection or surgical procedure.

In the operation of minimally invasive laparoscopic medical, find that lesion needs to perform the operation or cut off such as in body, then surgical procedure In need to be to carrying out pneumoperitoneum in human abdominal cavity.The important operation process that pneumoperitoneum is laparoscopic surgery is established, in the situation of pneumoperitoneum abundance Under, the distance between abdominal cavity and internal organs have not only been strutted, the distance between internal organs and internal organs have also been strutted, is provided relatively for patient The broad visual field and easily operated surgical environments.After completing pneumoperitoneum, doctor is general first to scratch one small cut in patient abdomen Mouthful, then by small notch that the alignment of the cutting tip of puncture outfit is scratched or so reciprocating rotation while move down puncture outfit, make to puncture Core assembly guiding puncture casing passes through patient abdomen cortex；Then it extracts and punctures core assembly, stapler or other surgical instruments are Abdominal cavity of patients can be passed in and out by puncture cannula to be operated.The existing effect for puncturing core assembly and only serving puncture, is drawing It leads after the puncture cannula enters patient's body from the notch of human abdomen, that is, is dropped.

After lesion is removed, puncture cannula component is taken out, operation terminates.The wound of puncture does not suture generally, only by suffering from Person heals automatically；Because the puncturing hole of Minimally Invasive Surgery is small and deep, the stomach wall of especially obese patient is thicker, and the visual field of suture 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 wears after surgery in this way The serious complication such as acanthopore hernia needs further to treat.The puncture core assembly of existing puncture outfit only plays the role of puncture, nothing Method sutures puncturing hole, after the guidance puncture cannula enters patient's body from the notch of human abdomen, that is, is dropped, If you need to suture puncturing hole, it is necessary to reuse special suture instruments.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 puncture core assembly, including piercing assembly, suturing assembly and adjusting unit；The piercing assembly includes cutting tip And puncturing lever, the suturing assembly is located in the puncturing lever, and at least part of the suturing assembly can be in the puncture It is moved in bar；Accommodating space is formed between the cutting tip and the puncturing lever, the adjusting unit includes knob, passes through rotation The knob controls the height of the accommodating space；By the movement of the suturing assembly, one end of suture is passed through described Tissue in accommodating space.

Preferably, the adjusting unit further includes disk, the knob can relative to the disk rotational, the disk with The cutting tip is indirectly connected with, and the knob rotation drives the disk to move up and down；And then the cutting tip is driven to transport up and down It is dynamic, to realize the control to the accommodating space height.

Preferably, the knob is equipped with internal screw thread, and the circumference of the disk is equipped with protrusion, and the height of the protrusion is small In the screw pitch of the internal screw thread, the internal screw thread and the protrusion cooperate.

Preferably, the protrusion is external screw thread.

Preferably, the externally threaded length is less than the length of the internal screw thread.

Preferably, the knob, which is rotated in a first direction, drives the disk to move downward；The knob is in a second direction Rotation drives the disk to move upwards, and the first direction is opposite with the second direction.

Preferably, the first direction is that clockwise, the second direction is counterclockwise.

Preferably, the knob is transparent material or translucent material.

Preferably, the material of the knob is PC or ABS.

Preferably, the knob includes first stroke and second stroke, and the first stroke is to adjust the accommodating space Height stroke, the second stroke be described one end of the suture pass through the accommodating space in tissue after, The stroke for adjusting unit and driving the suturing assembly and then described one end of the suture being driven to continue to move to.

Preferably, the knob has at least two marks: first identifier indicates to adjust the height of the accommodating space Stroke, second identifier indicate that the adjusting unit drives the suturing assembly and then described one end of the suture is driven to continue Mobile stroke.

Preferably, the outer surface of the knob is additionally provided with anti-skid chequer.

Preferably, the suturing assembly includes first element and second element, and one end system of the suture connects In the second element, the first element is separatably connected with the second element, the first element after connection Tissue with the second element by mobile one end by suture in the accommodating space.

Preferably, the first element has tip, and the tip may pass through the second element and from described second yuan Part exposes.

Preferably, the second element includes the channel of perforation, and the channel is for accommodating the first element at least A part, so that the first element is separatably connected with the second element.

Preferably, the suturing assembly further comprises the first interior bar, and the first element is connect with first interior bar, First interior bar can move in the puncturing lever, with the institute for driving the first element and being connected with the first element Second element is stated to suture the tissue in the accommodating space.

Preferably, the proximal end of first interior bar is additionally provided with handle, and the handle is fixedly connected with first interior bar.

Preferably, the adjusting unit further comprises connecting rod, and one end of the connecting rod is connect with the cutting tip, And the cross-sectional area of the connecting rod is less than the cross-sectional area of the puncturing lever, and the connecting rod can be in the puncturing lever It moves and its at least part stretches out the puncturing lever, to form the accommodating between the cutting tip and the puncturing lever Space.

Preferably, the adjusting unit further comprises bar body in second, and the suturing assembly further comprises first Interior bar, bar body can move in first interior bar in described second, the proximal end of bar body and the disk in described second It is fixedly connected or is integrally formed, the distal end of second interior bar is fixedly connected with the connecting rod.

Preferably, the puncturing lever also sets up the first limiting slot, and first interior bar is arranged the second limiting slot, and described second Interior bar body is equipped with limited post, and the limited post can move in first limiting slot and the second limiting slot.

Preferably, the cutting tip is additionally provided with accommodation groove, and the accommodation groove and the second element cooperate.

A kind of puncture outfit, the puncture outfit include sheath assembly, further include puncture core assembly described in any of the above embodiments, institute Stating puncture core assembly can protrude into described sleeve pipe component.

Puncture core assembly according to the present invention and the puncture outfit with it does not need to expand puncturing hole, do not need to increase yet Additional surgical instrument had been able to achieve the effect of puncture both to establish channel, and had entered trouble for stapler or other surgical operating instruments In person's body；The suture of puncturing hole can be realized in narrow puncturing hole again, and seam can be adjusted according to the individual difference of destination organization Height is closed, sewing effect is good；Puncturing hole hernia caused by capable of effectively avoiding because of Minimally Invasive Surgery puncturing hole, and puncture core group of the invention Part and with its puncture outfit can puncture when cutting tip and puncturing lever between gapless, form Oversewing space after piercing, no The wound that patient can be scratched when puncturing, effectively reduces patient suffering, conducive to the postoperative rehabilitation of patient.

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 the first interior bar according to an embodiment of the present invention；

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

Fig. 6 is the suture needle structural schematic diagram according to an embodiment of the present invention for puncturing core assembly；

Fig. 7 is the suture fixed-block-architecture (FBA) schematic diagram according to an embodiment of the present invention for puncturing core assembly；

Fig. 8 is the structural schematic diagram according to an embodiment of the present invention for puncturing core assembly original state；

Fig. 9 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 10 is the suture according to an embodiment of the present invention for puncturing core assembly；

Figure 11 is the structural schematic diagram of knob according to an embodiment of the present invention；

Figure 12 is the structural schematic diagram after puncture core assembly suture according to an embodiment of the present invention；

Figure 13 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, be only for Convenient for the description present invention and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed 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 It is a etc., unless otherwise specifically defined.

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 200 of the embodiment of the present invention include piercing assembly, suturing assembly and Adjust unit.Piercing assembly includes cutting tip 1 and puncture bar body 2.It punctures core assembly 200 from the inside to the outside, it is single to be followed successively by adjusting Member, suturing assembly and puncture bar body 2.The suturing assembly is located in the puncture bar body 2, and the suturing assembly is extremely Few a part can be moved puncturing in bar body 2；The suturing assembly, which is located at, to be punctured in bar body 2, refers to that the position of the two is closed System, not all component parts of suturing assembly, which are respectively positioned on, punctures in bar body 2.The present invention and simplification are retouched for ease of description It states, in embodiments of the present invention, sets one end close to clinician as " proximal end " or " top ", and one far from clinician End is " distal end " or " lower section " close to one end of patient body.Based on attached orientation or positional relationship shown in FIG. 1, will be close to revolve One end of button 5 is considered as " proximal end " or " top ", and the one end that will be close to cutting tip 1 is considered as " distal end " or " lower section "；Core group will be punctured The axial direction of part 200 is known as " height " direction, and the radial direction for puncturing core assembly 200 is known as " width " direction；By direction The direction that the direction of 5 central axis of knob is considered as " inside ", will be far from 5 central axis of knob is considered as " outside ".

As shown in Figure 1, puncturing core assembly 200 includes puncturing bar body 2, the cutting tip for puncturing 2 distal end of bar body being arranged in 1 and be arranged in puncture 2 proximal end of bar body knob 5.Fig. 2 depicts the composition and assembly relation for puncturing core assembly 200.It punctures Core assembly 200 further includes bar assembly 4 in bar assembly 3 and second in first；It punctures core assembly 200 from the inside to the outside, is followed successively by second Bar assembly 3 and puncture bar assembly 100 in interior bar assembly 4, first.At least part of bar assembly 4 is located at the first interior bar in second At least part of bar assembly 3, which is located at, in component 3, in first punctures in bar assembly 100；And in second bar assembly 4 central axis Line the central axis of bar assembly 3 and punctures the central axis of bar body 2 and is overlapped in first.

With reference to Fig. 3, puncturing bar assembly 100 includes the top cover 6 for puncturing bar body 2 and cooperating with puncture bar body 2.It punctures Bar body 2 includes suture channel 23 up and down, and bar assembly 3 is located in suture channel 23 in first, and can be relative to seam Channel 23 is closed to move up and down.The proximal end for puncturing bar body 2 is equipped with the fixed disk 25 that radially extends to form, fixed disk 25 it is close End includes at least two positioning columns 24, and positioning column 24 is uniformly distributed in fixed disk 25, and the proximal end of positioning column 24 is equipped with groove 241.Puncturing bar assembly 100 further includes the top cover 6 being fixedly connected with fixed disk 25, knob 5 be located at top cover 6 and fixed disk 25 it Between.Top cover 6 is substantially in circular ring shape.The bottom surface of top cover 6 includes at least two positioning protrusion 61, positioning protrusion 61 and positioning column 24 Groove 241 cooperates one by one；Top cover 6 is centrally formed suture key channel 62, and suture key channel 62 is connected to suture channel 23. The internal perisporium for puncturing 100 distal end of bar assembly is equipped with limited block 26, so that puncturing the suture channel 23 of 100 far-end of bar assembly Size be less than suture 23 rest part of channel diameter.The distal end for puncturing bar body 2 is symmetrically arranged with U-lag 22, for accommodating Sewing needle 7.The lower end of U-lag 22 extends to the lower end for puncturing bar body 2, and the length of U-lag 22 is equal or slightly larger than sewing needle 7 Length.

With reference to Fig. 4 or Fig. 2, bar assembly 3 includes bar body 30 and suture key 31 in first, bar body in first in first 30 inside forms chamber 32 up and down, and bar body 40 is located in chamber 32 in the second of bar assembly 4 in second, and can be in chamber 32 Interior up and down motion.The proximal end of bar body 30 is along its axially extending at least one connecting column 34 of formation in first, it is preferable that first The proximal end of interior bar body 30 is symmetrically formed two connecting columns 34, and accordingly, the disk 42 of bar assembly 4 includes two through-holes in second 48, connecting column 34 is fixedly connected after the through-hole 48 of disk 42 with suture key 31.When pressing suture key 31, the first interior bar Component 3 moves downward.The distal end of bar body 30 is symmetrically arranged with and mutually matched first mounting portion 33 of sewing needle 7, general in first After bar assembly 3 protrudes into the distal end for puncturing bar assembly 100 in first, bar assembly 3 is directed at its first mounting portion 33 in adjustment first The U-lag 22 of bar body 2 is punctured, in order to match sewing needle 7 with the first mounting portion 33 interference fit or transition from U-lag 22 It closes, two sewing needles 7 and the U-lag 22 for after bar body 30 is fixedly connected in first, being incorporated in puncture 2 distal end of bar body respectively It is interior.The distal end of spring 35 is abutted with the limited block 26 for puncturing 2 distal end of bar body, and the distal end of bar body 30 is supported in proximal end and first It connects.Suture fixed block 8 is separably attached to the distal end of sewing needle 7, and in order to clearly show that sewing needle 7, seam is omitted in Fig. 4 Zygonema fixed block 8.

As shown in figure 5, bar assembly 4 includes bar body 40 and connecting rod 45 in second in second, bar body 40 in second Proximal end radially extends to form disk 42, and the distal end of bar body 40 and the proximal end of connecting rod 45 are integrally formed or fix in second Connection, the distal end of connecting rod 45 is fixedly connected with the proximal end of cutting tip 1.Cutting tip 1 is in substantially cone, is substantially in cone Refer to cutting tip 1 in cone or similar cone, i.e., the bus of cutting tip 1 can be linear, can also in convex outer curve or In the curve of indent.Puncture bar body 2 is hollow circular-tube, and the diameter for proximally arriving distal end is all the same, and the maximum of cutting tip 1 is straight Diameter is substantially equal to the diameter for puncturing bar body 2.The stage portion 46 of evagination is additionally provided in connecting rod 45, the diameter of stage portion 46 is greater than For connecting rod 45 except stage portion 46 is with the diameter of outer portion, the internal perisporium for puncturing 2 distal end of bar body is additionally provided with limited block 26, so that The size for puncturing the suture channel 23 of 100 distal end of bar assembly is less than the diameter of suture 23 rest part of channel.Limited block 26 can be permitted Perhaps connecting rod 45 moves up and down from the inner cavity of limited block 26, abuts when connecting rod 45 moves to its stage portion 46 with limited block 26 When, because the internal diameter of limited block 26 is less than the diameter of stage portion 46, limited block 26 prevents stage portion 46 from continuing to move downward.Positioned at wearing Connecting rod 45 between barbed end 1 and stage portion 46 is cylindrical body or cuboid, and when it is cylindrical body, diameter is less than puncturing lever The diameter of ontology 2, cross-sectional area are less than the cross-sectional area for puncturing bar body 2, with the shape between cutting tip 1 and puncture bar body 2 At space；When it is cuboid, width and length are respectively less than the diameter for puncturing bar body 2.Before the intensity needed for meeting It puts, the cross-sectional area of the connecting rod 45 between cutting tip 1 and stage portion 46 is the smaller the better, in this way, the proximal end of cutting tip 1 The accommodating space formed between the distal end of puncture bar body 2 is larger.Further, the central axis and puncturing lever of connecting rod 45 The central axis of ontology 2 is overlapped.Cutting tip 1 can be more than or equal to relative to the distance for the distal movement for puncturing bar body 2 and suffer from The thickness of person's subcutaneous tissue.

The proximal end of bar body 40 radially extends to form disk 42 in second, and the periphery wall of disk 42 is equipped with protrusion, Referring again to Fig. 2 or Figure 11, knob 5 is hollow cylindrical body, and inner surface is equipped with internal screw thread 51, and the height of the protrusion is less than The screw pitch of the internal screw thread 51 of knob 5, the protrusion cooperate with internal screw thread 51.Preferably, the protrusion is external screw thread 43；Outside The length of screw thread 43 is less than the length of the internal screw thread 51 of knob 5.The proximal end of knob 5 and 6 clearance fit of top cover, the distal end of knob 5 With 25 clearance fit of fixed disk, and top cover 6 to fixed disk 25 vertical range it is equal with the height of knob 5, in this way, 5 quilt of knob It is limited between top cover 6 and fixed disk 25, so that knob 5 can only rotate rotation between top cover 6 and fixed disk 25, and cannot be It moves up and down between top cover 6 and fixed disk 25.

The adjusting unit includes knob 5 and disk 42, the 51 phase interworking of internal screw thread of the external screw thread 43 and knob 5 of disk 42 It closes, by turning knob 5 disk 42 can be moved between 5 proximal end of knob and distal end, to drive 4 phase of bar assembly in second It moves up and down for puncturing bar assembly 100.Disk 42 further includes the location hole 44 and through-hole 48 being arranged up and down, in the present invention Embodiment in, preferably, four location holes 44 are arranged on disk 42, accordingly, the proximal end of fixed disk 21 includes four fixed Position column 24.

With reference to Fig. 3 to Fig. 5, the proximal end for puncturing bar body 2 is set equipped with the proximal end of bar body 30 in the first limiting slot 21, first There is the second limiting slot 36, the position of the first limiting slot 21 and the second limiting slot 36 is corresponding, width is equal, the length of the second limiting slot 36 Degree is not less than the length of the first limiting slot 21.Bar body 40 further includes limited post 47 in second, be used for and the first limiting slot 21 and The cooperation of second limiting slot 36, the diameter of limited post 47 are slightly less than the width of the first limiting slot 21, and such limited post 47 can only be the It moves up and down and can not circumferentially rotate in one limiting slot 21 and the second limiting slot 36, to guarantee that bar assembly 4 is only puncturing in second It moves up and down in bar body 2；The stroke that limited post 47 moves up and down is defined by the flute length of the first limiting slot 21, and then is limited Bar assembly 4 is puncturing the stroke moved in bar body 2 in second.

The suturing assembly includes sewing needle 7 and suture fixed block 8, and sewing needle 7 and suture fixed block 8 are separatably It is connected, the sewing needle 7 and suture fixed block 8 after connection pass through the accommodating space by mobile one end by suture 9 Interior tissue.As shown in fig. 6, sewing needle 7 includes the second mounting portion 71 and needle point 72.Sewing needle 7 by the second mounting portion 71 with The first mounting portion 33 interference fit of bar body 30 or transition fit achieve a fixed connection in first, between two sewing needles 7 Distance is equal to or slightly less than the diameter for puncturing bar body 2.With reference to Fig. 7, suture fixed block 8 includes the suture being arranged up and down Needle passageway 82, for connecting with sewing needle 7, needle point 72 passes through suture needle passageway 82 and exposes from suture needle passageway 82, needle point 72 Connection type with suture needle passageway 82 is clearance fit；The side wall of suture fixed block 8 is equipped with winding slot 81, suture 9 Line tail 91 be wrapped on winding slot 81 and at winding slot 81 formed knot, two line tails 91 of suture 9 respectively with one stitch Zygonema fixed block 8 cooperates, and the proximal end 92 of suture 9 is along the limited post 47 that the outer wall for puncturing bar body 2 hangs over the second interior bar 4； Rear slip-knot formed here can be taken up if any extra suture 9, punctures bar body 2 to prevent suture 9 to be scattered in Between interior bar 5.Referring again to Fig. 2 or Fig. 5, accommodation groove 11 is provided on cutting tip 1, for cooperating with suture fixed block 8； The fit system of suture fixed block 8 and accommodation groove 11 is interference fit；Accommodation groove 11 is to be adapted to 8 profiling of suture fixed block Mounting groove, in this way, when suture fixed block 8 enter accommodation groove 11 after, the outer surface of suture fixed block 8 and accommodation groove 11 are complete Full fitting, connects stronger.Further, size of the accommodation groove 11 at 1 periphery of cutting tip is minimum, and this avoid when seam After zygonema fixed block 8 is installed into accommodation groove 11, the risk that radially falls off out of accommodation groove 11.

The line tail 91 of suture 9 is wrapped on winding slot 81 and forms knot, two line tails of suture 9 at wire casing 81 After 91 respectively cooperate with a suture fixed block 8, suture fixed block 8 is mounted on the needle point 72 of sewing needle 7, and make needle point 72 expose from suture fixed block 8, and sewing needle 7 and suture fixed block 8 are set in U-lag 22, and the length of U-lag 22 is equal to Or the length slightly larger than sewing needle 7；And the outer surface of sewing needle 7 and suture fixed block 8 is without departing from the appearance for puncturing bar body 2 Face, such sewing needle 7 suture when apart from puncturing hole farther out, the distance between two sewing needles 7 be equal to or slightly less than puncturing lever The diameter of ontology 2 provides maximum suture size to guarantee under the premise of not expanding puncturing hole.

When operation, after completing pneumoperitoneum, doctor first scratches a small notch in patient abdomen, then by puncture outfit of the present invention 1000 cutting tip 1 moves down puncture outfit 1000 while being directed at the small notch scratched or so reciprocating rotation, until casing group Part 300 passes through patient abdomen cortex；When puncture, disk 42 is located at the proximal end of knob 5, the proximal end of cutting tip 1 and puncture bar body 2 Distal end abut, such cutting tip 1 and puncture gapless between bar body 2, when puncture will not clip to the tissue of patient.Then it pulls out Core assembly 200 is punctured out, and stapler or other surgical instruments can pass in and out abdominal cavity of patients by puncture cannula component 300 and carry out hand Art operation.

After intraperitoneal operation, the puncture core assembly 200 of the embodiment of the present invention is inserted again by sheath assembly 300 Enter patient's body, in order to clearly show that the mutual cooperation relationship for puncturing each component of core assembly 200, Fig. 8 is omitted into Figure 10 Sheath assembly 300.With reference to Fig. 8, when puncture, disk 42 is located at the proximal end of knob 5, and the proximal end of cutting tip 1 and punctures bar body 2 Distal end abut, such cutting tip 1 and puncture gapless between bar body 2, when puncture will not clip to the tissue of patient.

After the cutting tip 1 for puncturing core assembly 200 reaches target position, as shown in figure 9, being rotated in a first direction knob 5, it is preferable that be rotated in the clockwise direction knob 5, the external screw thread 43 of disk 42 and the internal screw thread 51 of knob 5 cooperate, because of circle By the constraint of the positioning column 24 of fixed disk 21, disk 42 can only move up and down without being able to rotate the location hole 44 of disk 42.In this way, suitable When clockwise turning knob 5, by the constraint of positioning column 24, external screw thread 43 and internal screw thread 51 cooperate and drive disk 42 downward Movement, while bar body 40 and cutting tip 1 in second being driven to move downward, to be formed between cutting tip 1 and puncture bar body 2 Accommodating space.When needing to increase the height of Oversewing space, continue to rotate clockwise knob 5；It is empty when needing to reduce suture Between height when, rotate counterclockwise knob 5, the internal screw thread 51 of knob 5 and the external screw thread 43 of disk 42 cooperate so that disk 42 to Upper movement, while bar body 40 and cutting tip 1 in second being driven to move upwards, thus between cutting tip 1 and puncture bar body 2 Oversewing space reduces.The outer surface of knob 5 be equipped with anti-skid chequer 52, with increasing friction force, play the role of it is anti-skidding, convenient for rotation adjust The height of the accommodating space.

When reaching required accommodating space and obtaining required height, subcutaneous group of the clamping face of 1 proximal end of cutting tip and patient Knit lower layer contacts.Due to the elasticity of tissue, the tissue at patient's puncturing hole can be full of the Oversewing space, i.e. patient punctures Tissue encapsulation at hole lives connecting rod 45, fills up the space between the proximal end of cutting tip 1 and the distal end of puncture bar body 2.Then, Downwards by suture key 31, suture key 31 successively pushes bar body 30 in first, sewing needle 7 and suture fixed block 8 downward Movement, two respective needle points 72 of sewing needle 7 guide suture fixed block 8 respectively and then drive two end line tails 91 of suture 9 It moves downward, the state after pressing suture key 31 is as shown in Figure 10.

For the ease of observing the position of disk 42, according to one embodiment of present invention, knob 5 is by transparent material or semi-transparent Bright material is made, it is preferable that the material of knob 5 is PC or ABS.The outer surface of knob 5 is additionally provided with mark, as shown in figure 11, rotation The maximum value for the thickness that the vertical height of the proximal end of button 5 to mark N are subcutaneous tissue F, the proximal end of knob 5 is to identifying the vertical of M Height is the average value of the thickness of subcutaneous tissue F；Less than stroke shown in mark N point, i.e. disk 42 is moved to from initial position The stroke of mark N is used to adjust the height of the accommodating space.Greater than mark N shown in mark stroke, i.e., disk 42 from mark N The stroke for moving to 5 distal end of knob is used to increase the travel distance of suture 9, convenient for pulling out suture；It is subcutaneous for being less than The destination organization of the maximum value of the thickness of F is organized, the stroke of mark M to mark N are also used for increasing the travel distance of suture 9, Further it is convenient for pulling out suture.According to another embodiment of the invention, knob 5 can also be made of transparent materials, The peripheral wall of knob 5 is equipped at least one longitudinal slot；Or top cover 6 is equipped at least one notch；Or on the peripheral wall of knob 5 Equipped at least one longitudinal slot, while top cover 6 is equipped at least one notch, in order to from the longitudinal slot and/or described lack The position of disk 42 is observed at mouthful.

Specifically, with reference to Figure 12, after two end line tails 91 of suture 9 penetrate subcutaneous tissue F from D, C two o'clock respectively, then Secondary to rotate clockwise knob 5, because suture fixed block 8 has been inserted into the accommodation groove 11 of cutting tip 1, and line tail 91 is wrapped in Knot is formed on the winding slot 81 of suture fixed block 8 and at winding slot 81, and then by adjusting unit for the line of suture 9 Tail 91 continues 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 includes the thickness of skin corium and epidermis, continue movement stroke enable line tail 91 be diverted and when moving upwards Enough be drawn out from subcutaneous tissue F is even drawn out out of abdominal wall, while the distal end of suture 9 being made to progress into patient's body. When the height of the accommodating space reaches maximum, disk 42 moves to the distal end of knob 5, and connecting rod 45 moves to stage portion 46 It is abutted with limited block 26.

(show that sewing needle 7 pierces completely when in the accommodation groove 11 that suture fixed block 8 has been fixed on cutting tip 1 The subcutaneous tissue of saturating patient), release suture key 31, because the distal end of spring 35 is supported with the limited block 26 for puncturing 2 distal end of bar body It connects, proximal end is abutted with the distal end of bar body 30 in first, and spring 35 is released and extends, and the elastic restoring force of spring 35 pushes away Bar assembly 3 moves upwards in dynamic first, and bar body 30 drives sewing needle 7 to move upwards in first, due to the folder of 1 proximal end of cutting tip It holds face to be located at below the subcutaneous tissue of patient, the tissue of patient prevents the clamping face of 1 proximal end of cutting tip from moving up, and then prevents Cutting tip 1 moves up；Because the fit system of suture fixed block 8 and the accommodation groove 11 of cutting tip 1 is interference fit, after cooperation Suture fixed block 8 is difficult to separate with accommodation groove 11, and sewing needle 7 and 8 clearance fit of suture fixed block；So release suture After key 31, bar body 30 drives sewing needle 7 to separate with suture fixed block 8 in first, and sewing needle 7 is retracted to puncture bar body In the U-lag 22 of 2 distal end, suture fixed block 8 is located in the accommodation groove 11 of cutting tip 1.Preferably, it sutures on key 31 also Handle 37 can be pulled up when suture fixed block 8 has been fixed in the accommodation groove 11 on cutting tip 1 equipped with handle 37 To pull suture key 31 to move upwards, and then make bar body 30 in first that sewing needle 7 be driven to divide with suture fixed block 8 From sewing needle 7 is retracted in the U-lag 22 for puncturing the distal end of bar body 2, and suture fixed block 8 is located at the accommodation groove of cutting tip 1 In 11

Figure 12 illustrates the process that the destination organization of the embodiment of the present invention is sewn.The skin ecto-entad of human body is followed successively by Epidermis, skin corium, subcutaneous tissue, as long as puncturing hole is just not by the undermost subcutaneous tissue F layers of suture at patient's puncturing hole It can open, be easy to epidermis and skin corium heals automatically, the generation of puncturing hole hernia can be effectively prevent；Preferably, it is worn in patient The epidermis E or skin corium of acanthopore knot, in this way, knot is located in puncturing hole, do not expose the skin of patient, to prevent postoperative touch To knot, because the subcutaneous tissue of patient has sutured, puncturing hole just will not open, and be easy to epidermis or skin corium heals automatically.Make To be preferred, suture 9 is the absorbable suture of human body.The slip-knot that the proximal end 92 of suture 9 is formed at limited post 47 is unlocked, The proximal end 92 of suture 9 is in free state.Two respective needle points 72 of sewing needle 7 guide suture fixed block 8 and then band respectively Two end line tails 91 of dynamic suture 9 come into contact with from A, B two o'clock of subcutaneous tissue F respectively and pierce cutting tip 1 and puncturing lever sheet The tissue in space that body 2 is formed, and in the accommodation groove 11 for guiding suture fixed block 8 to be installed on cutting tip 1, suture 9 Two end line tails 91 penetrate subcutaneous tissue F from D, C two o'clock respectively.Because the line tail 91 of suture 9 is formed at winding slot 81 in advance Knot, suture fixed block 8 introduce the line tail 91 of suture 9 below the subcutaneous tissue of patient.M is being identified extremely by knob 5 5 distal end of knob or mark N are to the stroke of 5 distal end of knob, and rotation knob 5 moves downward disk 42, to drive the second interior bar Component 4 and cutting tip 1 move downward simultaneously, because suture fixed block 8 is fixed in the accommodation groove 11 of cutting tip 1, so that Two end line tails 91 of the suture 9 being wrapped on suture fixed block 8 continue to move downward, so the proximal end 92 of suture 9 into Enter patient's body and is contacted with subcutaneous tissue.

It holds knob 5 and is moved up core assembly 200 is punctured, puncture bar body 2, connecting rod 45, cutting tip 1 and be detached from patient It is internal, suture fixed block 8 is fixedly connected with the accommodation groove 11 of cutting tip 1, and cutting tip 1 takes off together with suture fixed block 8 Internal from patient, because the line tail 91 of suture 9 is connect with suture fixed block 8, it is subcutaneous that the line tail 91 of suture 9 is located at patient The lower section of tissue, during cutting tip 1 leaves patient's body, two line tails 91 of suture 9 are from puncturing hole to moving up It is dynamic, consequently facilitating line tail 91 is pulled out abdominal cavity by cutting tip 1.Cutting tip 1 be detached from patient it is internal after, tense suture 9 After two line tails 91 and knotting, extra suture 9 is removed, that is, completes the suture of puncturing hole.As long as because will be at patient's puncturing hole Subcutaneous tissue suture, the generation of puncturing hole hernia can be effectively prevent；Preferably, it knots in the epidermis of patient or skin corium, In this way, knot is located in puncturing hole, do not leak out the skin of patient, with prevent it is postoperative encounter knot, because patient subcutaneous tissue 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 200 is punctured based on as described above, the present invention also provides a kind of puncture outfits 1000 to puncture with reference to Figure 13 Device 1000 further includes sheath assembly 300, when puncture, punctures core assembly 200 and is inserted into puncture cannula component 300, and guiding sleeve Component 300 enters in abdominal cavity of patients, is operated so that other surgical operating instruments enter patient's body, sutures in cutting After operation, puncture outfit 1000 of the invention can also suture puncturing hole.

In conclusion puncture core assembly according to the present invention and the puncture outfit with it, do not need to expand puncturing hole, not yet It needs to increase additional surgical instrument, has both been able to achieve the effect of puncture to establish channel, for stapler or other surgical operation devices Tool enters patient's body；The suture of puncturing hole can be realized in narrow puncturing hole again, and can be according to the individual difference of destination organization It is different, suture height is adjusted, sewing effect is good；Puncturing hole hernia caused by capable of effectively avoiding because of Minimally Invasive Surgery puncturing hole, and the present invention Puncture core assembly and with its puncture outfit can puncture when cutting tip and puncturing lever between gapless, after piercing formed seam Space is closed, the wound of patient will not be scratched when puncturing, patient suffering is effectively reduced, conducive to the postoperative rehabilitation of patient.

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 (22)

1. a kind of puncture core assembly, including piercing assembly, suturing assembly and adjusting unit；It is characterized in that,

The piercing assembly includes cutting tip and puncturing lever, and the suturing assembly is located in the puncturing lever, and the suture group At least part of part can move in the puncturing lever；Accommodating space, institute are formed between the cutting tip and the puncturing lever Stating and adjusting unit includes knob, and the height of the accommodating space is controlled by rotating the knob；Pass through the suturing assembly It is mobile, one end of suture is passed through into the tissue in the accommodating space.

2. puncture core assembly according to claim 1, which is characterized in that the adjusting unit further includes disk, the rotation Button can be indirectly connected with relative to the disk rotational, the disk with the cutting tip, and the knob rotation drives the disk It moves up and down；And then the cutting tip is driven to move up and down, to realize the control to the accommodating space height.

3. puncture core assembly according to claim 2, which is characterized in that the knob is equipped with internal screw thread, the disk Circumference be equipped with protrusion, the height of the protrusion is less than the screw pitch of the internal screw thread, and the internal screw thread and the protrusion are mutual Cooperation.

4. puncture core assembly according to claim 3, which is characterized in that the protrusion is external screw thread.

5. puncture core assembly according to claim 4, which is characterized in that the externally threaded length is less than the internal screw thread Length.

6. puncture core assembly according to claim 2, which is characterized in that the knob is rotated in a first direction described in drive Disk moves downward；The knob, which rotates in a second direction, drives the disk to move upwards, the first direction and described the Two is contrary.

7. puncture core assembly according to claim 6, which is characterized in that the first direction is clockwise direction, described Second direction is counterclockwise.

8. puncture core assembly according to claim 1, which is characterized in that the knob is transparent material or translucent material Matter.

9. puncture core assembly according to claim 8, which is characterized in that the material of the knob is PC or ABS.

10. puncture core assembly according to claim 1 or 8, which is characterized in that the knob includes first stroke and second Stroke, the first stroke are the stroke for adjusting the height of the accommodating space, and the second stroke is in the suture One end is after the tissue in the accommodating space, the adjusting unit drives the suturing assembly and then drives the suture The stroke that continues to move to of described one end.

11. puncture core assembly according to claim 1 or 8, which is characterized in that the knob has at least two marks: First identifier indicates to adjust the stroke of the height of the accommodating space, the second identifier expression adjusting unit drive suture The stroke that component drives described one end of the suture to continue to move in turn.

12. puncture core assembly according to claim 1, which is characterized in that the outer surface of the knob is additionally provided with anti-skid chequer.

13. puncture core assembly according to claim 1, which is characterized in that the suturing assembly includes first element and One end system of two element, the suture connects in the second element, and the first element and the second element can It is detached from ground to be connected, the first element after connection passes through with the second element by mobile one end by suture described Tissue in accommodating space.

14. puncture core assembly according to claim 13, which is characterized in that the first element has tip, the point End may pass through the second element and expose from the second element.

15. puncture core assembly according to claim 13, which is characterized in that the second element includes the channel of perforation, The channel is used to accommodate at least part of the first element, so that the first element can be detached from the second element Ground is connected.

16. puncture core assembly according to claim 13, which is characterized in that the suturing assembly further comprises in first Bar, the first element are connect with first interior bar, and first interior bar can move in the puncturing lever, described in driving First element and the second element being connected with the first element suture the tissue in the accommodating space.

17. puncture core assembly according to claim 16, which is characterized in that the proximal end of first interior bar, which is additionally provided with, to be mentioned Hand, the handle are fixedly connected with first interior bar.

18. puncture core assembly according to claim 2, which is characterized in that the adjusting unit further comprises connecting rod, One end of the connecting rod is connect with the cutting tip, and the cross-sectional area of the connecting rod is less than the transversal of the puncturing lever Area, the connecting rod can move in the puncturing lever and its at least part stretches out the puncturing lever, described The accommodating space is formed between cutting tip and the puncturing lever.

19. puncture core assembly according to claim 18, which is characterized in that the adjusting unit further comprises in second Bar body, the suturing assembly further comprise the first interior bar, and bar body can move in first interior bar in described second, The proximal end of bar body is fixedly connected or is integrally formed with the disk in described second, the distal end of bar body and institute in described second Connecting rod is stated to be fixedly connected.

20. puncture core assembly according to claim 19, which is characterized in that the puncturing lever also sets up the first limiting slot, The second limiting slot is arranged in first interior bar, and bar body is equipped with limited post in described second, and the limited post can be described the It is moved in one limiting slot and the second limiting slot.

21. puncture core assembly according to claim 13, which is characterized in that the cutting tip is additionally provided with accommodation groove, institute It states accommodation groove and the second element cooperates.

22. a kind of includes such as the described in any item puncture outfits for puncturing core assembly of power 1 to 21, which is characterized in that the puncture outfit It further include puncture cannula component, the puncture core assembly can protrude into the puncture cannula component.