CN206482618U - Tissue closing device and tissue closure system - Google Patents

Abstract

The utility model provides a kind of tissue closing device and tissue closure system.To the problem of auxiliary fetches suture during solving surgical suturing process.Tissue closing device includes main body, and main body has along the inner chamber of main body axis direction insertion main body；First actuator lever, is at least partly telescopically arranged in inner chamber, and with the front end of a stretching inner chamber；At least one deployable mechanism, including the first rotation section and the second rotation section；Line taking space is formed between the first rotation section and the second rotation section；Wherein, line limiting section is provided with the main body in line taking space；Wherein, main body is additionally provided with the needle guide chamber that at least one runs through main body, has angle between the axis and main body axis of needle guide chamber；When deployable mechanism is in deployed condition, the extended line of the axis of needle guide chamber can be unimpeded into line taking space.

Description

Tissue closing device and tissue closure system

Technical field

The utility model is related to technical field of medical instruments, and in particular to a kind of tissue closing device and tissue closure system System.

Background technology

In recent years, minimally invasive surgery is quickly grown, and is widely used in surgical field.

Although it is very small that the otch of Minimally Invasive Surgery, which compares traditional operation with trochar opening, complete to perform the operation Cheng Hou, still requires that and is allowed to close.Surgical closure reduction postoperative infection, postoperative hernia formation go out (such as in abdominal operation), then The possibility of blood or other influences.Closure can be realized by manual suture or for the suture instrument for completing the closure.Two In the case of kind, due to small opening size, such as, not only for manipulation suture and for making process visualization, suture becomes It is difficult.Due also to the need for dividually suturing the hypodermis of such as fascia layer with the closure of the skin of upper covering, and wearing Sutured in the case of the very small opening crossed in skin, while also to avoid during this process to internal organs Possible damage or damage, and cause closure to become more difficult.

Those conventional closure techniques of opening such as closing stomach wall pass a suture through abdominal wall tissue to away from original Beginning trocar incisions have a certain distance.One or more suture is then knotted to close hypodermic layer, is followed by epidermis Appropriate closure.Have been noted that, distance of the suture orientation away from original cutout is for ensureing to be used to be formed reliably to close An appropriate number of abdominal wall tissue closed is important.If apart from too small, closure can not reliably enough close opening and cause Later without complication.

Existing tissue closing device needs a large amount of in the visualization that suture is open and knots and closes to suture Artificial nursing closes for realizing.Operation is inconvenient and it cannot be guaranteed that opening is reliably closed

Utility model content

The utility model provides a kind of tissue closing device and tissue closure system, to convenient from group during performing the operation Knit internal taking-up suture and control suture to the distance of opening, it is ensured that opening can be reliably closed.

To reach above-mentioned purpose, on the one hand embodiment of the present utility model provides a kind of tissue closing device, and it includes master Body, the main body has along the inner chamber of main body described in main body axis X1 direction insertions；First actuator lever, at least partly telescopically It is arranged in the inner chamber, and with a front end for stretching out the inner chamber；At least one deployable mechanism, including the first rotation Portion and the second rotation section, first end and the main body of first rotation section are hinged, the second end of first rotation section with Second end of second rotation section is hinged, the front end of the first end of second rotation section and first actuator lever directly or Person rotates connection indirectly；Wherein, the deployable mechanism can be changed between deployed condition and collapsed state；In deployed condition The pin joint at second end of first rotation section and the second rotation section is more than to the distance of the main body axis to be packed up Distance during state；In deployed condition, line taking space is formed between first rotation section and the second rotation section；Wherein, Line limiting section is provided with the main body in the line taking space；Wherein, the main body is additionally provided with least one through described The needle guide chamber of main body, has angle between the axis and the main body axis of the needle guide chamber；In the deployable mechanism During in deployed condition, the extended line of the axis of the needle guide chamber can be unimpeded into the line taking space.

Further, according to foregoing tissue closing device, first rotation section provided with grabbing line opening, it is described can When development mechanism is in deployed condition, the extended line of the axis of the needle guide chamber may pass through it is described grab line opening enter it is described Line taking space.

Further, according to foregoing tissue closing device, the main body is set on the side of the main body axis There is wire holding portion, the wire holding portion is located along the same line with the line limiting section.

Further, according to foregoing tissue closing device, rotated at the second end of first rotation section or second Second end in portion struts portion provided with line, and the line struts the axle of the line and the needle guide chamber between portion and the line limiting section The extended line of line intersects.

Further, according to foregoing tissue closing device, the wire casing run through is additionally provided with first rotation section；It is described Wire casing, the line strut portion, the line limiting section and the wire holding portion and are in same plane.

Further, according to foregoing tissue closing device, first rotation section includes two pivoted arms be arrangeding in parallel, Gap of the wire casing between two pivoted arms is formed.

Further, according to foregoing tissue closing device, the main body is provided with the guide groove connected with the inner chamber；Also Including the first actuation part, first actuation part is arranged in first actuator lever, and stretches out the master through the guide groove Body.

Further, according to foregoing tissue closing device, in addition to head；The first end of second rotation section and institute The front end for stating the first actuator lever rotates connection and is specially indirectly：The head is connected with the front end of first actuator lever, The first end of second rotation section is hinged with the head；And/or the guide groove can be with described first provided with least one The neck of actuation part engaging.

On the other hand embodiment of the present utility model provides a kind of tissue closure system, and it includes suture grasper and such as Foregoing tissue closing device；Wherein, the suture grasper includes grasper main body, needle tubing and line grasping mechanism；It is described Needle tubing is connected with the grasper main body；The line grasping mechanism is at least partially disposed on the grasper main body and described In needle tubing；When the deployable mechanism is under deployed condition, the needle tubing is adapted to pass through the needle guide chamber and enters institute State line taking space；The line grasping mechanism is suitable to capture the suture in the line taking space.

Further, according to foregoing tissue closure system, the line grasping mechanism includes elastic claw and drive mechanism, institute State that elastic claw is at least part of to be accommodated in the front end of the needle tubing and can be moved in the needle tubing, the drive mechanism at least portion It is arranged in the grasper main body and the needle tubing with dividing, for driving the elastic claw to stretch out or be accommodated at least in part The front end of the needle tubing；When the elastic claw stretches out the needle tubing at least in part, the elastic claw expansion；When the elasticity When pawl is accommodated in the needle tubing, the elastic claw closure.

The utility model has the advantages and positive effects of：

The tissue closing device of the utility model embodiment, by set in main body by deployable mechanism deploy after formed Line taking space, and needle guide chamber is set in main body, the extended line of the axis of needle guide chamber enters line taking space, so may be used To facilitate line grasping mechanism to enter in line taking space by needle guide chamber, and suture is fetched into the outside of human body to be opened The closure of mouth, line taking is simple to operate, it is not necessary to extra mechanism, and the position of suture and the distance of cutout can also Appropriately distance is set as by tissue closing device, to ensure that opening can be closed reliably.

The tissue closure system of the utility model embodiment, is engaged by suture grasper and tissue closing device, To the closure that suture is fetched into the outside of human body to be open, line taking is simple to operate, it is not necessary to extra mechanism, and can To allow operating personnel to use suture is taken out without visual blind operation.

Brief description of the drawings

The schematic elevational view for the tissue closing device that Fig. 1 provides for the utility model embodiment；

The schematic side elevation for the tissue closing device that Fig. 2 provides for the utility model embodiment；

The schematic perspective view for the tissue closing device that Fig. 3 provides for the utility model embodiment；

The tissue closure system that Fig. 4 provides for the utility model embodiment deployable mechanism be in deployed condition under Operating diagram；

The tissue closure system that Fig. 5 provides for the utility model embodiment deployable mechanism be in deployed condition under Schematic elevational view；

The tissue closure system that Fig. 6 provides for the utility model embodiment deployable mechanism be in deployed condition under The enlarged diagram on head；

Fig. 7 is the schematic diagram of the variant embodiment for the guide groove that the utility model embodiment is provided；

Fig. 8 is the signal when elastic claw is in receiving state for the suture grasper that the utility model embodiment is provided Figure；

Fig. 9 is Fig. 8 schematic cross-sectional view；

Figure 10 is the showing when elastic claw is in deployed condition for the suture grasper that the utility model embodiment is provided It is intended to；

Figure 11 is Figure 10 schematic cross-sectional view.

Description of reference numerals：

100th, tissue closing device；101st, the first rotation section；102nd, the second rotation section；103rd, the first actuator lever；104th, head Portion；105th, line limiting section；106th, needle guide chamber；107th, needle guide chamber after-opening；108th, the first actuation part；109th, line struts portion； 110th, main body；111st, handle；112nd, guide groove；113rd, the second contact surface；1011st, first point of arm；1012nd, second point of arm；1013rd, grab Line opening；1014th, wire casing；1101st, wire holding portion；1041st, line constriction；1121st, neck；200th, suture grasper；201、 Grasper main body；202nd, button；203rd, the second actuation part；204th, needle tubing；205th, elastic claw；206th, spring；207th, the first contact Face；300th, suture；A, line taking space；X1, main body axis；X2, needle guide chamber axis.

Embodiment

The exemplary embodiment of the utility model embodiment is described in detail below in conjunction with the accompanying drawings.

First the fore-and-aft direction in the present embodiment is defined as follows, as shown in fig. 1, for tissue closing device 100, head The location of 104 be front end, is rear end with its side in opposite direction.As shown in Figure 10, for suture grasper 200, The one end for being provided with elastic claw 205 is front end, and opposite to that one end is rear end.

Can by describe connection, be attached and/or link together part description laparoscope manadesma closed-system it is each Individual aspect.As used in the text, being directly connected between term " connection " is for indicating two parts, or in appropriate situation Under, indicate to be indirectly connected with each other by intervention part or intermediate member.On the contrary, when part is referred to as " being directly connected to " to another part When, in the absence of intervening element.

Such as " front ", " front end " and " rear ", the relational language of " rear end " can be used to describe in accompanying drawing in the text The relation of the element shown and another element.It is to be understood that relational language is intended to except drawing in accompanying drawing Beyond orientation, tissue closing device/tissue closure system or the different orientation of its part are also contemplated by.For example, if accompanying drawing In the pattern of tissue closing device/tissue closure system that shows be inverted, then be described as the member on the front of another element Part is then oriented in the rear end side of another element.Therefore, according to the specific orientation of device, therefore term front end can be contained The two orientations of lid front side and rear side.

Embodiment one

Fig. 1 to Fig. 3 is the schematic diagram of tissue closing device 100 of the present utility model.It includes the actuating of main body 110, first Bar 103 and at least one deployable mechanism.Wherein, main body 110 has along the inner chamber of main body axis X1 direction insertions main body 110； At least part of first actuator lever 103 is telescopically arranged in inner chamber, and with the front end of a stretching inner chamber；At least one can Development mechanism includes the first rotation section 101 and the second rotation section 102, and first end and the main body 110 of the first rotation section 101 are hinged, Second end at the second end of the first rotation section 101 and the second rotation section 102 is hinged, the first end and first of the second rotation section 102 The front end of actuator lever 103 directly or indirectly rotates connection.

Wherein, deployable mechanism can be changed between deployed condition and collapsed state；Show deployable mechanism in exhibition in Fig. 5 Schematic diagram of the deployable mechanism in collapsed state is shown in schematic diagram during open state, Fig. 1.In deployed condition first turn The pin joint at the second end of the dynamic rotation section 102 of portion 101 and second to main body axis X1 distance be more than in collapsed state away from From；In deployed condition, line taking space A is formed between the first rotation section 101 and the second rotation section 102, as shown in Figure 5.

Wherein, line limiting section 105 is provided with the main body 110 in the A of line taking space.

Wherein, main body 110 be additionally provided with least one run through main body needle guide chamber 106, the axis X 2 of needle guide chamber 106 with There is angle theta, as shown in Figure 5 between main body axis X1；When deployable mechanism is in deployed condition, needle guide chamber 106 The extended line of axis X 2 can be unimpeded into line taking space A.

Specifically, the setting quantity of deployable mechanism is even number, can set two groups or four groups or more multigroup, preferably Two groups of deployable mechanisms are provided with ground, the present embodiment, are symmetrically arranged relative to main body axis X1.

Alternatively, the number that needle guide chamber 106 is set is identical with the number of deployable mechanism；The axis of needle guide chamber 106 X2 is obliquely set relative to main body axis X1, and needle guide chamber 106 is arranged to the inner chamber with accommodating the first actuator lever 103 Between it is non-interference, so in the needle guide chamber 106 during the needle tubing 204 of insertion suture grasper 200, as shown in Figure 5, pin Pipe 204 does not interfere with motion of first actuator lever 103 in interior intracavitary.The extended line of the axis X 2 of described needle guide chamber 106 can Line taking space A is unimpeded into specifically refer to needle tubing 204 unhinderedly can to enter line taking through needle guide chamber 106 empty Between in A.

Alternatively, line limiting section 105 can be suitable to being limited in suture 300 into the structure close to the position of main body to be any. Specifically, line limiting section 105 can be the buckle structure that can be opened and closed, and when buckle is closed, buckle has been internally formed can The lead channels (not shown) passed through for suture 300, suture 300 can be moved in lead channels direction, but can not be departed from Lead channels.Line limiting section 105 is not limited to buckle structure.Deployable mechanism be in deployed condition under, such as Fig. 4 into Fig. 6 institute Show, line limiting section 105 is located in the A of line taking space.

Alternatively, portion is strutted provided with line at the second end of the first rotation section 101 or the second end of the second rotation section 102 109, as shown in Figure 5, line struts the extension of the axis X 2 of the line and needle guide chamber 106 between portion 109 and line limiting section 105 Line intersects.As shown in fig. 6, in the deployed state, suture 300 is softened in line taking space and positioned at line limiting section 105 and line Strut between portion 109.It can so ensure after the needle tubing of suture grasper 200 is entered in the A of line taking space, in operator In the case of the blind operation of member, suture grasper 200 still can accurately catch suture 300, improve the accuracy rate of line taking.

Alternatively, as shown in Figure 5, the first rotation section 101 is in exhibition provided with line opening 1013 is grabbed in deployable mechanism During open state, the extended line of the axis X 2 of needle guide chamber 106, which may pass through, grabs line opening 1013 and enters line taking space A.So may be used So that suture grasper 200 is entered in the A of line taking space.It should be noted that making the extension of the axis X 2 of needle guide chamber 106 Line, which passes through to grab line opening 1013 and enter line taking space A mode, is not limited to set the shape of opening on the first rotation section 101 Formula, any the first rotation section that first rotation section 101 is entered in the A of line taking space without interference with suture grasper 200 101 structures are in the range of the limitation of the present embodiment.

Alternatively, as shown in Fig. 2, Fig. 3 and Fig. 4, the side around main body axis X1 of main body 110 is held provided with wire clamp Portion 1101, wire holding portion is located along the same line with line limiting section 105.The effect of wire holding portion 1101 is that suture 300 is carried out It is oriented to and spacing, suture 300 is entered together with tissue closing device in tissue and will not relative organization's closure dress Random movement is put, the side for making suture 300 be limited along wire holding portion 1101 and line limiting section 105 when suture 300 is taken out into tissue To movement, the generation of the situations such as skew, winding, the knotting of suture 300 is effectively reduced, it is ensured that suture 300 can smoothly take out.

Preferably, line limiting section 105 is the guide groove being arranged in main body 110.Preferably, it is main as shown in Fig. 2 to Fig. 4 Body 110 is provided with protuberance, and the protuberance can be taper or cylindricality, and wire holding portion 1101 is arranged on protuberance.

Preferably, as shown in Figure 6, it is additionally provided with the wire casing 1014 run through in the first rotation section 101；Wire casing 1014, line support Portion 109, line limiting section 105 and wire holding portion 1101 is opened to be in same plane.Wire casing 1014 through the first rotation section 101 and with Line taking space A is connected, and when deployable mechanism is in deployed condition, a part for suture 300 struts portion 109 by line and propped up, separately A part passes through wire casing 1014 by the spacing position close to main body 110 of line limiting section 105, and continues across wire casing 1014 and line Clamping part 1101 is connected, as shown in Figure 5, and suture 300 is in generally V-shaped structure in the A of line taking space.

Preferably, as shown in Figure 6, the first rotation section 101 includes two pivoted arms be arrangeding in parallel, respectively first point arm 1011 and second point of arm 1012, gap of the wire casing 1014 between first point of arm 1011 and second point of arm 1012 is formed.Preferably, Line opening 1013 is grabbed to be also formed in wire casing 1014.But the structure of the first rotation section is not limited to be made up of two points of arms, also may be used To be integrally formed, wire casing is opened up in the middle part of the first rotation section and line opening (not shown) is grabbed；Other can also be used Structure.

Preferably, as shown in Figure 1 and Figure 3, main body 110 is provided with the guide groove 112 connected with inner chamber；Also include first to cause Dynamic portion 108, the first actuation part 108 is arranged in the first actuator lever 103, and stretches out main body 110 through guide groove 112.

Preferably, as shown in fig. 1, for the ease of gripping, main body 110 is provided with handle 111, and guide groove 112 and first is caused Dynamic portion 108 is arranged in handle 111.

Specifically, guide groove 112 is arranged on prolonging on main body axis X1 side, and along main-shaft axis X1 directions for main body Stretch.Radial direction of first actuation part 108 along main body axis X1 protrude from guide groove 112 and be connected with the first actuator lever 103 by Button, the first actuation part 108 does guiding movement along guide groove 112, and drives the first actuator lever 103 to be slided along inner chamber, and then drive can Development mechanism is changed between deployed condition and collapsed state.But the first actuation part 108 is not limited to the structure in the present embodiment, Any structure for being suitable to the first actuator lever 103 of driving in move within lumens is in the range of the limitation of the present embodiment.

Alternatively, as shown in Figures 4 and 5, tissue closing device also includes head 104；The first of second rotation section 102 End rotates to be connected indirectly with the front end of the first actuator lever 103 is specially：Head 104 is connected with the front end of the first actuator lever 103 Connect, first end and the head 104 of the second rotation section 102 are hinged.First actuator lever 103 can be fixedly connected with head 104 or Rotate connection.

Preferably, line constriction 1041 is additionally provided with head 104, for constraining trend of the suture 300 along head.It is preferred that Ground, line constriction 1041 is wire casing.

Alternatively, a kind of example knot for the position in guide groove 112 that can limit the first actuation part 108 is shown in Fig. 7 Structure.Guide groove 112 is provided with the neck 1121 that at least one can engage with the first actuation part 108, it is preferable that neck 1121 is arranged on The side of guide groove 112 is simultaneously connected with guide groove, and the profile of neck 1121 is adapted with the profile of the first actuation part 108.First actuating Bar 103 is rotatably coupled with head 104.When the first actuation part 108 moves to the position of neck 1121, around main body axis X1 The first actuation part 108 and the first actuator lever 103 are rotated, the first actuation part 108 is screwed into neck 1121, such first actuating Bar 103 can not be moved along main body axis X1.

Neck 1121 is preferably at least arranged on to the position that deployable mechanism is maintained to deployed condition, very important person is so not required to Work aid in tissue closing device is to be positively retained at expanded position.

Preferably, it is in deployed condition in deployable mechanism and is provided with neck 1121 in collapsed state is corresponding, And then deployable mechanism can be maintained at deployed condition and collapsed state, with ensure tissue closing device can stablize work, Reduce unexpected generation.

Preferably, elastic component (not shown), elastic component and the first actuation part 108 and/or are additionally provided with the lumen One actuator lever 103 coordinates, by the first actuation part 108 and/or the first actuator lever 103 towards make deployable mechanism be in deployed condition or The location bias of collapsed state.Elastic component is preferably spring.

Embodiment two

Fig. 4 to Fig. 6 is the schematic diagram of tissue closure system of the present utility model.

The tissue closure system of the present embodiment includes the tissue closing device 100 and suture grasper 200 of embodiment one. Wherein, suture grasper 200 includes grasper main body 201, needle tubing 204 and line grasping mechanism；Needle tubing 204 and grasper master Body 201 is connected；Line grasping mechanism is at least partially disposed in grasper main body 201 and needle tubing 204；At deployable mechanism When under deployed condition, needle tubing 204 is adapted to pass through needle guide chamber 106 and enters line taking space A；Line grasping mechanism takes suitable for crawl Suture 300 in space of lines A.

Specifically, as shown in Fig. 8 to Figure 11, line grasping mechanism includes elastic claw 205 and drive mechanism, elastic claw 205 At least part of front end for being accommodated in needle tubing 204 can be simultaneously moved in the needle tubing 204, drive mechanism be used to driving elastic claw 205 to Partially stretch out or be accommodated in the front end of needle tubing 204；When elastic claw 205 stretches out needle tubing 204 at least in part, elastic claw 205 expansion；When elastic claw 205 is accommodated in needle tubing 204, elastic claw 205 is closed.

Specifically, elastic claw 205 is substantially U-shaped or V-arrangement, and elastic claw 205 includes two elastic arms being connected, two The free end (front end) of elastic arm is relatively provided with claw.Elastic claw 205 is at least partially disposed in needle tubing 204, elasticity One end provided with claw of pawl is towards the outlet of needle tubing 204.Elastic claw in the presence of drive mechanism to the inside of needle tubing 204 During motion, in the presence of the restraining force of needle tubing 204, two elastic arms can be moved towards direction close to each other, two claw phases The capture space of suture 300 can be surround by coordinating and then being formed, and suture 300 can be in capture space slidably, but can not depart from Capture space.When elastic claw 205 stretches out from the outlet of needle tubing 204, two elastic arms are towards direction motion away from each other, two The opening for being available for suture 300 to enter capture space is formed between individual claw.

In addition, the structure of elastic claw 205 is not limited to U-shaped or V-arrangement, any be adapted to mount in needle tubing 204 can firmly grasp Or the elastic construction opened is in the range of the limitation of the application.The quantity of elastic arm is also not necessarily limited to two, or three Or more than three.

Preferably, guide frame is provided with needle tubing 204, to be oriented to elastic claw 205, prevents elastic claw 205 from existing Rotated when retraction or stretching needle tubing 204, the accuracy of influence crawl suture 300.Preferably, guide frame is located at pin Guide groove on inside pipe wall, elastic claw 205 is slidably disposed in guide groove.

Or, guide frame can also be set between connecting rod and needle tubing 204, rotation of the limiting rod in needle tubing 204, And non-rotatable connection will be set between connecting rod and elastic claw 205, and then elastic claw 205 can be prevented with respect to 204 turns of needle tubing It is dynamic.

Specifically, drive mechanism includes the second actuation part 203 and connecting rod (not shown).Second actuation part 203 is at least It is partially disposed at the inside of grasper main body 201 and is slidably matched with grasper main body 201；Connecting rod is at least partially disposed on It is slidably matched in needle tubing 204 and with needle tubing 204.Connecting rod one end is connected with the second actuation part 203, and the other end connects with elastic claw 205 Connect (preferably, connecting rod is connected with the junction of two elastic arms).Under the effect of the second actuation part 203, connecting rod drives elastic claw 205 relative needle tubings 204 are moved, and then are retracted or are stretched out needle tubing 204.Connecting rod can be with the split of the second actuation part 203 or one Body is made.

Preferably, as shown in figures 9 and 11, it is additionally provided with button 202 in the second actuation part 203.Preferably, button 202 is set Put in the rear end (opposite end that one end is connected with connecting rod) of the second actuation part 203.

Preferably, it is additionally provided with spring 206 between the actuation part 203 of grasper main body 201 and second.Spring 206 is used for elasticity Bias the second actuation part 203.

Preferably, the first contact surface 207 of the side that is connected with needle tubing 204 of grasper main body 201 is inclined-plane, and this first Contact surface 207 is in predetermined inclination angle relative to the axis of needle tubing 204.Accordingly, in the main body 110 of tissue closing device 100 The second contact surface 113 of needle guide chamber after-opening 107 is provided with for inclined-plane, and second contact surface 113 and needle guide chamber The angle of axis X 2 is also predetermined inclination angle.By in this way, relative to the axis X 2 of needle guide chamber, suture grasper 200 can only cause the first contact surface 207 of grasper main body 201 and main body 110 in the specific anglec of rotation be provided with needle guide Second contact surface 113 of chamber after-opening 107 fits, the relative angle of such needle tubing 204 and elastic claw 205 and suture 300 It can be defined, it is preferable that the opening and suture 300 between two claws of elastic claw 205 are substantially vertical.So as to protect Card when elastic claw 205 stretches out out of needle tubing 204, just may be used after needle tubing 204 enters in line taking space A along needle guide chamber 106 To capture suture 300, so as to ensure that operating personnel capture the accuracy of suture 300 under blind mode of operation.

Preferably, location structure (not shown) is provided between the second contact surface 113 and the first contact surface 207, is used to Relative position to suture grasper 200 and tissue closing device 100 is positioned.Preferably, location structure is to set respectively Put projection and groove on the second contact surface 113 and the first contact surface 207.

The occupation mode with regard to the tissue closure system of the present embodiment is illustrated below：

Suture 300 is loaded on the periphery of tissue closing device in the case where deployable mechanism is in collapsed state, its In, the middle part of suture 300 is attached to the line constriction 1041 on head 104, subsequently advances to the line limiting section 105 in main body 110 It is interior, through line limiting section 105 and continue thereafter with the wire holding portion 1101 being forwarded in main body 110.Suture 300 passes through wire clamp Portion 1101 is held to tense and spacing.Tissue closing device 100 can be inserted into organization internal by the open pore in tissue In (such as body cavity).The first actuator lever 103 is driven deployable mechanism is moved to deployed condition, and tissue closing device 100 is retracted So that the first rotation section 101 is engaged on tissue inwall.The needle tubing 204 of suture grasper 200 can be filled by tissue closure The needle guide chamber 106 for putting 100 is inserted, and through tissue and passes through the open front of needle guide chamber 106, and is entered in the A of line taking space To engage and capture the suture 300 being positioned in the A of line taking space.Suture grasper 200 captures suture 300 and from needle guide chamber 106 retract；Suture 300 is moved back from wire holding portion 1101, line limiting section 105 successively in the case of locating slidably in its back-end Go out, and be retracted into by needle guide chamber 106 outside body cavity so that the rear end of suture 300 is exposed outside in vitro.Subsequent tissue closure dress The deployable mechanism for putting 100 returns to collapsed state, is closed so as to discharge suture 300 and then be retracted from body cavity and remove tissue Attach together and put 100.Knotted using the end of the exposure of suture 300 to close tissue.

The utility model has the advantages that：

The tissue closing device of the utility model embodiment, by set in main body by deployable mechanism deploy after formed Line taking space, and needle guide chamber is set in main body, the extended line of the axis of needle guide chamber enters line taking space, so may be used To facilitate line grasping mechanism to enter in line taking space by needle guide chamber, and suture is fetched into the outside of human body to be opened The closure of mouth, line taking is simple to operate, it is not necessary to extra mechanism, and the position of suture and the distance of cutout can also It is appropriately distance by the configuration settings of tissue closing device, to ensure that opening can be closed reliably.

The tissue closure system of the utility model embodiment, is engaged by suture grasper and tissue closing device, To the closure that suture is fetched into the outside of human body to be open, line taking is simple to operate, it is not necessary to extra mechanism, and can To allow operating personnel to use suture is taken out without visual blind operation.

It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed Or replace, it should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power The protection domain that profit is required is defined.

Claims (9)

1. a kind of tissue closing device (100), it is characterised in that：Including main body (110), the main body (110) has along main body The inner chamber of main body (110) described in axis (X1) direction insertion；

First actuator lever (103), is at least partly telescopically arranged in the inner chamber, and stretches out the inner chamber with one Front end；

At least one deployable mechanism, including the first rotation section (101) and the second rotation section (102), first rotation section (101) first end is hinged with the main body (110), the second end and second rotation section of first rotation section (101) (102) the second end is hinged, and the first end of second rotation section (102) and the front end of first actuator lever (103) are direct Or connection is rotated indirectly；

Wherein, the deployable mechanism can be changed between deployed condition and collapsed state；First rotates described in deployed condition The pin joint at second end of portion (101) and the second rotation section (102) is more than to the distance of the main body axis (X1) to be received The distance during state of rising；In deployed condition, formed and taken between first rotation section (101) and the second rotation section (102) Space of lines (A)；

Wherein, line limiting section (105) is provided with the main body (110) in the line taking space (A)；

Wherein, the main body (110) is additionally provided with the needle guide chamber (106) that at least one runs through the main body, the needle guide chamber (106) there is angle (θ) between axis (X2) and the main body axis (X1)；Deployed condition is in the deployable mechanism When, the extended line of the axis (X2) of the needle guide chamber (106) can be unimpeded into the line taking space (A)；

The side around the main body axis (X1) of the main body (110) is provided with wire holding portion (1101), and the wire clamp is held Portion is located along the same line with the line limiting section (105).

2. tissue closing device according to claim 1, it is characterised in that first rotation section (101) is provided with and grabbed Line opening (1013), when the deployable mechanism is in deployed condition, the extension of the axis (X2) of the needle guide chamber (106) Line may pass through the line opening (1013) of grabbing and enter the line taking space (A).

3. tissue closing device according to claim 1, it is characterised in that the second of first rotation section (101) Second end of end or the second rotation section (102) struts portion (109) provided with line, and the line struts portion (109) and the line is spacing Line between portion (105) intersects with the extended line of the axis (X2) of the needle guide chamber (106).

4. tissue closing device according to claim 3, it is characterised in that be additionally provided with first rotation section (101) The wire casing (1014) run through；The wire casing (1014), the line strut portion (109), the line limiting section (105) and the wire clamp Portion (1101) is held to be in same plane.

5. tissue closing device according to claim 4, it is characterised in that first rotation section (101) includes parallel Two pivoted arms set, gap of the wire casing (1014) between two pivoted arms is formed.

6. tissue closing device according to any one of claim 1 to 5, it is characterised in that set on the main body (110) There is the guide groove (112) connected with the inner chamber；Also include the first actuation part (108), first actuation part (108) is arranged on institute State in the first actuator lever (103), and the main body (110) is stretched out through the guide groove (112).

7. tissue closing device according to claim 6, it is characterised in that also including head (104)；Described second rotates The first end in portion (102) rotates to be connected indirectly with the front end of first actuator lever (103)：The head (104) It is connected with the front end of first actuator lever (103), first end and the head (104) of second rotation section (102) It is hinged；And/or

The guide groove (112) is provided with the neck (1121) that at least one can engage with first actuation part (108).

8. a kind of tissue closure system, it is characterised in that：Including any in suture grasper (200) and such as claim 1-7 Tissue closing device (100) described in；

Wherein, the suture grasper (200) includes grasper main body (201), needle tubing (204) and line grasping mechanism；

The needle tubing (204) is connected with the grasper main body (201)；

The line grasping mechanism is at least partially disposed in the grasper main body (201) and the needle tubing (204)；

When the deployable mechanism is under deployed condition, the needle tubing (204) is adapted to pass through the needle guide chamber (106) and entered Enter to the line taking space (A)；

The line grasping mechanism is suitable to capture the suture (300) in the line taking space (A).

9. tissue closure system according to claim 8, it is characterised in that the line grasping mechanism includes elastic claw (205) and drive mechanism, at least part of front end for being accommodated in the needle tubing (204) of elastic claw (205) simultaneously can be described Moved in needle tubing (204), the drive mechanism is at least partially disposed on the grasper main body (201) and the needle tubing (204) in, for driving the elastic claw (205) to stretch out or be accommodated in the front end of the needle tubing (204) at least in part；Work as institute When stating elastic claw (205) and stretching out the needle tubing (204) at least in part, elastic claw (205) expansion；When the elastic claw (205) when being accommodated in the needle tubing (204), elastic claw (205) closure.