CN218589062U - Tissue repair device and tissue repair system - Google Patents

Abstract

The application relates to a tissue repair device and a tissue repair system, wherein the tissue repair device comprises a carrier, an insertion tube and a pushing mechanism, wherein the insertion tube is arranged at one end of the carrier, and is provided with an accommodating space for accommodating at least two pairs of linearly arranged implants; the pushing mechanism comprises a pushing block, a pushing needle and a one-way limiting assembly, the pushing block is arranged on the carrier, the pushing needle is located in the insertion tube, the pushing needle is connected with the pushing block, and the one-way limiting assembly is used for only allowing the pushing block to move in a one-way stepping mode relative to the carrier. This application is through setting up one-way spacing subassembly to a plurality of implants that will insert intraductal are deployed to the tissue department of tearing according to the order, realize the effect that once operation was implanted many times promptly, thereby greatly save operation time and operation cost.

Description

Tissue repair device and tissue repair system

Technical Field

The present application relates to the field of medical devices, and in particular, to a tissue repair device and a tissue repair system.

Background

When a tear is created in the tissue, it can be surgically reattached and the area where the tissue can be surgically repaired includes, but is not limited to, the biceps brachii tendon, the lateral collateral ligament of the knee, the medial collateral ligament of the knee, the meniscus of the knee, the leg ligament, etc.

Fibrous tissue injuries (e.g., muscle, ligament, and meniscal tears) can be repaired arthroscopically using sutures. To close a fibrous tissue lesion, a surgeon may insert two suture needles with attached sutures into the tissue, thread the sutures through the lesion, and then secure the free ends of the sutures within the tissue by tying knots.

To simplify the suturing operation, suturing devices are also currently used to assist the operation, which fit two implants connected by knotting a suture; the existing suture instrument comprises a handle, a pushing structure and a tube body are arranged on the handle, a pushing needle located in the tube body is arranged at the pushing end of the pushing structure, two implants are located in the tube body, a first implant is located in front of the pushing needle, and a second implant is located in a radial gap between the pushing needle and the inner wall of the tube body.

Specifically, the pushing structure in the stapler is utilized to deploy the first implant to one side of the tissue tear, then the pusher needle is retracted to the initial position, the second implant loses its resistance from the pusher needle, the second implant drops to the initial position of the first implant, then the pusher needle is driven forward again to deploy the second implant to the other side of the tissue tear, then the suture is tightened, and the suture is contracted to force the two implants to displace toward the middle to close the tissue tear.

That is, only two implants can be deployed by one suture instrument to complete one-needle suture, when the torn part is too large or needs to be reinforced further, multiple-needle suture is often needed, that is, multiple suture instruments are needed to be used alternately to implement the deployment of multiple groups of implants, which greatly increases the operation time and cost.

SUMMERY OF THE UTILITY MODEL

To reduce surgical time and cost, the present application provides a tissue repair device and a tissue repair system.

The application provides a tissue repair device adopts following technical scheme:

a tissue repair device comprises a carrier, an insertion tube and a pushing mechanism, wherein the insertion tube is arranged at one end of the carrier and is provided with an accommodating space for accommodating at least two pairs of linearly arranged implants; the pushing mechanism comprises a pushing block, a pushing needle and a one-way limiting assembly, the pushing block is arranged on the carrier, the pushing needle is located in the insertion tube, the pushing needle is connected with the pushing block, and the one-way limiting assembly is used for only allowing the pushing block to move in a one-way stepping mode relative to the carrier.

Through adopting above-mentioned technical scheme, the insert tube provides the accommodation space that holds two at least pairs of implants, and the implant is linear in accommodation space and arranges, adopts one-way spacing subassembly to drive the one-way marching type motion of promotion piece simultaneously, and then drives the one-way marching type motion of promotion needle by promoting the piece, finally is released the implant that the linearity was arranged by promoting the needle in proper order.

Before use, at least two pairs of implants can be preset in the accommodating space of the insertion tube, the implants are linearly arranged, and the pushing needle is abutted to the tail ends of the linearly arranged implants. During the use process, the insertion tube is firstly utilized to puncture one side of a tissue tearing part to be sutured, then the pushing block is driven to move in a unidirectional stepping mode through the unidirectional limiting assembly, the unidirectional stepping mode of the pushing needle is further driven to move, the pushing force is applied to the tail end of the implant, then the first implant (the implant near the tube opening of the insertion tube) at the head end is deployed to one side of the tissue tearing part (at the moment, the pushing block is located at the second stepping position) through force transmission among the implants, the insertion tube is moved back and moves to the other side of the tissue tearing part again, the operation is repeated, the second implant (at the head end) is deployed to the other side of the tissue tearing part (at the moment, the pushing block is located at the third stepping position), the deployment of one pair of implants is completed, and the steps are repeated, so that the deployment of a plurality of pairs of implants can be realized.

Utilize one-way spacing subassembly promptly to in order deploy the implant respectively to the tissue department of tearing, thereby realize the effect of once operation many times order implantation, and then greatly save operation time and operation cost.

Optionally, the one-way limiting assembly comprises a forward limiting structure and a reverse limiting structure: the forward limiting structure and the carrier are movably arranged along the propulsion direction relatively, the forward limiting structure and the pushing block are fixedly arranged along the propulsion forward direction relatively, and the forward limiting structure and the pushing block are not fixedly arranged along the propulsion reverse direction; the reverse limiting structure is arranged on the carrier, the pushing block is relatively fixedly arranged with the reverse limiting structure along the pushing reverse direction, and the pushing block is non-fixedly arranged with the reverse limiting structure along the pushing forward direction.

Through adopting above-mentioned technical scheme, during the use, make the relative carrier of forward limit structure along promoting a step distance of forward movement, in this process, forward limit structure with promote a relatively fixed setting, therefore forward limit structure drives and promotes a step distance of forward movement of piece, accomplish the deployment of implant, then make forward limit structure along promoting the backward movement and reset, in this process, firstly, because promote the piece along promoting reverse direction and reverse limit structure relatively fixed setting, therefore produced interference collision during the backward movement of forward limit structure is difficult to drive and promotes the piece along the backward movement, secondly because forward limit structure along promoting reverse direction with promote a non-fixed setting, non-strong interference promptly, also be difficult to drive and promote a backward movement.

The operation is repeated, namely, the pushing block moves in a one-way stepping mode through one forward and one backward movement of the forward limiting structure, so that the sequential deployment of a plurality of implants is completed. Meanwhile, the forward limiting structure is short in moving stroke, occupation of operation space can be reduced, and the stroke is accurate, so that accuracy of stepping moving and accuracy of deployment are guaranteed.

Optionally, the pushing mechanism further comprises an elastic resetting structure, and the elastic resetting structure is used for forcing the forward limiting structure to move in the pushing reverse direction relative to the carrier.

By adopting the technical scheme, the automatic retraction reset of the forward limiting structure is realized through the elastic reset structure, and the automatic retraction reset is convenient and fast.

Optionally, the forward limiting structure includes an operating element and a forward limiting element; the operating piece is movably arranged along the propelling direction relative to the carrier; the forward locating part is connected with the operating parts, the forward locating part or promote the piece and be equipped with a plurality of forward spacing grooves of arranging the setting along the direction of propulsion interval, promote the piece or the forward locating part be equipped with be used for with forward spacing groove complex forward spacing tooth, forward spacing tooth and/or the notch edge of forward spacing groove is equipped with along promoting reverse looks butt's forward direction inclined plane.

By adopting the technical scheme, when the operating part drives the forward limiting part to move forward along the pushing direction, the forward limiting part and the pushing block are relatively fixed through the meshing of the forward limiting groove and the forward limiting tooth, so that the pushing block is driven to move forward in a stepping manner; when the operating parts drives forward locating part along promoting reverse movement, through the effect on forward direction inclined plane for forward spacing tooth and forward spacing groove dodge each other in order to break away from the meshing, realize promptly, along promoting the reverse, forward locating part with promote a non-fixed setting, the collision is interfered to weak point, takes place in order to reduce the condition that promotes a reverse movement.

Optionally, reverse limit structure includes reverse locating part, reverse locating part one end with it connects to promote the piece, reverse locating part's the other end or the carrier is equipped with a plurality of reverse spacing grooves of arranging the setting along the direction of propulsion interval, the carrier or reverse locating part be equipped with be used for with reverse spacing groove complex reverse spacing tooth, reverse spacing tooth and/or reverse spacing groove's notch edge is equipped with along promoting forward looks butt's reverse direction inclined plane.

By adopting the technical scheme, when the forward limiting structure is reset and an acting force moving in the pushing direction is applied to the pushing block, the carrier, the reverse limiting piece and the pushing block are relatively fixed through the meshing of the reverse limiting groove and the reverse limiting tooth, so that the situation that the pushing block moves in the reverse direction is reduced; when forward limit structure applyed along the effort that impels forward movement to promoting the piece, through the effect on reverse direction inclined plane of leading for reverse spacing tooth and reverse spacing groove dodge each other in order to break away from the meshing, realize promptly, along impel forward, reverse locating part with promote the non-fixed setting between the piece, the weak collision that interferes, so that forward limit structure's forward effort can drive and promote a forward movement.

Optionally, still include drive structure, the carrier is equipped with the pipe of adjusting depth, the pipe cover of adjusting depth is located the outside of intubate, adjust the pipe of adjusting depth with the carrier is along propulsion direction sliding connection, drive structure is used for controlling adjust the sliding distance of pipe of adjusting depth.

By adopting the technical scheme, when the insertion tube is inserted, the tube opening of the depth-adjusting tube can be abutted against the outer wall of the tissue, and at the moment, the distance of the insertion tube extending out of the depth-adjusting tube is the distance of the insertion tube penetrating through the tissue; through setting up drive structure to the sliding distance of control accent pipe, thereby the distance outside the extension accent pipe of control inserted tube, and so that prescribe a limit to the depth of insertion of inserted tube, with the restoration of the tissue that is applicable to different thickness.

Optionally, the drive structure is located at an end of the carrier remote from the insertion tube.

Through adopting above-mentioned technical scheme, the insert tube is kept away from to the operating position of drive structure, keeps away from the human body promptly, and operating space is great this moment, the operation of being convenient for.

Optionally, the depth adjusting pipe is connected with the carrier in a rotation stopping manner; the drive structure comprises a knob, the knob is rotationally connected with the carrier, and the knob is connected with the depth adjusting pipe through a thread transmission structure.

Through adopting above-mentioned technical scheme, through the rotating swing handle, utilize threaded connection's power transmission to drive the pipe of adjusting depth and slide, the control of sliding quantity is more accurate, and the screw-thread fit compactness is better, can reduce the regulation clearance too big and the position that leads to is inaccurate.

The application also provides a tissue repair system, which adopts the following technical scheme:

a tissue repair system comprising a tissue repair device, at least two pairs of implants, sutures; wherein the implants are intended to be positioned within the receiving space of the insertion tube, one or more of the sutures being connected between a respective one or more of the pairs of implants.

By adopting the technical scheme, the product is integrated, and the complexity of field filling is reduced; in addition, the connection form of the suture and the implant can be diversified, so as to meet different requirements of tissue repair.

Optionally, the attaching of the suture to the implants comprises passing the suture through both implants, pulling the free ends of the suture to tighten the suture length of both implants.

Through adopting above-mentioned technical scheme, through the connection form that sets up the formula of can tightening up, realize tightening up comparatively conveniently and fix with the stylolite free end.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the one-way limiting assembly, at least two pairs of implants inserted into the tube are sequentially deployed to the tissue tearing part, so that the effect of multiple implantation in one operation is realized, and the operation time and the operation cost are greatly saved;

2. the forward limiting structure and the reverse limiting structure are matched with each other, and the pushing block moves in a one-way stepping mode through one forward and one backward movement of the forward limiting structure, so that the sequential deployment of a plurality of implants is completed, the occupation of the operation space can be reduced, and the stepping movement accuracy of the pushing block and the deployment accuracy of the implants are improved;

3. through the drive structure who sets up screw thread drive mode, not only maneuverability is great, and the control of adjusting depth pipe position more accurate.

Drawings

Fig. 1 is a schematic structural view of the tissue repair device of the present embodiment.

Fig. 2 is a schematic diagram of the present embodiment for showing the connection structure of the carrier and the insertion tube.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Fig. 4 is a schematic structural view of the pushing block of the present embodiment.

Fig. 5 is an exploded view of the embodiment for showing the connection relationship between the carrier and the slide rail member.

Fig. 6 is a sectional view of the internal structure for embodying the carrier of the present embodiment.

Fig. 7 is a sectional view of the internal structure for embodying the carrier of the present embodiment.

Fig. 8 is a partially enlarged view at B in fig. 6.

Fig. 9 is a partial enlarged view at C in fig. 6.

Fig. 10 is a schematic view showing a state where the implant of the tissue repair system of the present embodiment is scheduled to be positioned in the insertion tube.

Description of reference numerals: 1. a carrier; 2. an insertion tube; 3. a pushing mechanism; 11. connecting blocks; 12. a connecting pipe; 13. a slide rail member; 131. a chute; 132. a rotation stopping groove; 133. a second threaded portion; 134. a fixed tube; 14. a sliding groove; 21. a main pipe; 22. a secondary pipe; 23. managing the tubes; 31. a pushing block; 32. pushing the needle; 41. an operating member; 411. a movable barrel; 412. a circular ring; 42. a forward limit piece; 421. a positive limiting groove; 43. positive limit teeth; 431. a forward guide ramp; 51. a reverse stopper; 52. a reverse limit tooth; 521. a reverse guide slope; 53. a reverse limiting groove; 61. a second pin body; 62. a tension spring; 63. a first pin body; 71. a knob; 711. a first threaded portion; 712. a mating groove; 72. a depth adjusting pipe; 100. an implant; 200. and (4) sewing.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment of the application discloses a tissue repair device.

A tissue repair device, as shown in FIG. 1, includes a carrier 1, an insertion tube 2, and a pushing mechanism 3.

The carrier 1 is used as a basic structure and is mainly used for bearing structures such as an insertion tube 2 and a pushing mechanism 3, and the specific shape of the carrier 1 needs to be adaptively changed according to the shape of an actual movement detection structure, so that the carrier 1 can also be a block structure, a plate structure, a strip structure or other irregular shapes, and in order to simplify the volume and facilitate bearing and accommodating, the carrier 1 in the embodiment is provided with a hollow tube structure so as to facilitate holding and bearing and accommodating of a doctor.

As shown in fig. 2, a port of the carrier 1 is fixed with a connecting block 11 located in an inner cavity of the carrier 1, the connecting block 11 may be installed later, the connecting block 11 may also be integrally formed with the carrier 1, a connecting pipe 12 is integrally formed in the middle of the connecting block 11, the connecting pipe 12 is coaxial with the carrier 1, one end of the insertion pipe 2 is inserted and fixed in the connecting pipe 12, a specific fixing manner may be interference or additional installation of a connecting member, such as a pin, and the other end of the insertion pipe 2 is exposed outside the carrier 1 as a free end, in this embodiment, the free end of the insertion pipe 2 is provided with a sharp portion so as to be inserted along an operation path, and the insertion pipe 2 may be made of a flexible material, such as stainless steel, so as to facilitate bending adjustment of the free end of the insertion pipe 2, so as to be suitable for improving an insertion range, and in some other embodiments, the free end of the insertion pipe 2 may be not sharp, or may be straight, and may be rigid.

As shown in fig. 3, the insertion tube 2 may further include a main tube 21 and a sub-tube 22, wherein the sub-tube 22 is sleeved on the outer surface of the main tube 21, one end of each of the main tube 21 and the sub-tube 22 is fixed in the connection tube 12, the free end of the main tube 21 extends to the outside of the sub-tube 22, and the free end of the main tube 21 is the free end of the insertion tube 2; the end of the auxiliary pipe 22 far away from the connecting pipe 12 is fixed with a line-arranging pipe 23, the line-arranging pipe 23 is sleeved outside the free end of the main pipe 21, a radial gap is formed between the line-arranging pipe 23 and the main pipe 21, the line-arranging pipe 23 is used for restricting and arranging a suture line of an implant in the main pipe 21 so as to reduce the occurrence of the exposed condition of the suture line, in some embodiments, the line-arranging pipe 23 can be made of an elastic material, such as silica gel, and the line-arranging pipe 23 can more tightly wrap the suture line so as to improve the limiting effect of the suture line.

As shown in fig. 4 and 5, the pushing mechanism 3 includes a pushing block 31, a pushing needle 32 and a one-way limiting component; wherein, promote the piece 31 and be located the inner chamber of carrier 1, promote the relative carrier 1 of piece 31 and slide along the 1 central axis of carrier and set up, the central axis direction of carrier 1 is the direction of propulsion, specifically, promote the shape of piece 31 can with the adaptation of 1 inner chamber wall of carrier, in order to realize sliding fit, also can be through setting up intermediate structure, in order to assist the sliding motion who promotes piece 31, in this embodiment, set up slide rail spare 13 as intermediate structure in the 1 inner chamber of carrier, slide rail spare 13 is the columnar structure, be equipped with on the slide rail spare 13 and extend the spout 131 that runs through the setting along the 1 central axis of carrier, set up the shape of spout 131 with connecting block 11 looks adaptation, make connecting block 11 and slide rail spare 13 produce the cooperation relation, in order to improve the stability that slide rail spare 13 is located carrier 1, and, promote piece 31 and spout 131 and cooperate, in order to realize the setting of sliding of piece 31 relative carrier 1.

As shown in fig. 6, a part of the structure of the push needle 32 is located in the lumen of the insertion tube 2. One end of the pushing needle 32 is fixed in the pushing block 31, and the other end of the pushing needle 32 is located in the inner cavity of the insertion tube 2, so that the inner cavity space of the insertion tube 2 is divided into two parts, one part is used for accommodating the pushing needle 32, and the other part is an accommodating space for accommodating the implant 100. It can be understood that the initial size of the accommodating space can be set according to the actual requirement of the product, and the size of the accommodating space can also change along with the movement of the pushing needle 32, for example, the accommodating space can initially accommodate three pairs of implants 100 arranged linearly, during the use process, the pushing needle 32 moves in a unidirectional stepping manner, the accommodating space is compressed, and the implants 100 are also pushed out. Based on this, the tissue repair device provided by the present application can limit the number of the implants 100 by adjusting the initial size of the accommodating space or adjusting the position of the push needle 32 under the condition that the initial size of the accommodating space is fixed according to the actual application requirement, thereby improving the applicability of the product.

As shown in fig. 6 and 7, the one-way limiting component is configured to only allow the pushing block 31 to move in a one-way step manner relative to the carrier 1, so that the pushing block 31 drives the pushing needle 32 to move in a forward step manner to push the implants 100 in the insertion tube 2, and then the multiple implants 100 are sequentially and respectively deployed to the tissue tearing position through mutual force transmission of the implants 100, thereby achieving the effect of multiple ordered implants in one operation, and further greatly saving operation time and operation cost.

In one embodiment, the one-way limiting component may be a one-way pawl structure disposed between the pushing block 31 and the carrier 1, and the one-way pawl structure only allows one-way linear movement of the pushing block 31, and then each engagement point of the one-way pawl structure is used as a stepping node to realize one-way and equidistant stepping movement of the pushing block 31.

In another embodiment, the one-way limiting component may be an elastic limiting ball structure disposed between the pushing block 31 and the carrier 1, so that a moving path between the pushing block 31 and the carrier 1 has a plurality of elastic clamping nodes, and each elastic clamping node is used as a stepping node to realize equidistant stepping movement of the pushing block 31.

In this embodiment, the one-way limiting component includes a forward limiting structure and a reverse limiting structure; the forward limiting structure and the carrier 1 are movably arranged along the propulsion direction, the forward limiting structure and the pushing block 31 are fixedly arranged along the propulsion forward direction, and the forward limiting structure and the pushing block 31 are not fixedly arranged along the propulsion reverse direction; the reverse limiting structure is arranged on the carrier 1, the pushing block 31 is relatively fixedly arranged with the reverse limiting structure along the pushing reverse direction, and the pushing block 31 is non-fixedly arranged with the reverse limiting structure along the pushing forward direction; the above-mentioned fixed arrangement between the two (the driving object and the driven object) means that when moving along a certain direction, the driving object and the driven object can move together in a connected state; the non-fixed arrangement between the two means that when moving in a certain direction, the connection between the two can be disconnected, so that only the driving object in the two can be paired, and the driven object is not movable.

The forward limiting structure and the reverse limiting structure can be set to be a one-way pawl structure between the pushing block 31 and the carrier 1, and the difference is that the limiting direction of the pawl structure of the forward limiting structure is opposite to the limiting direction of the pawl structure of the reverse limiting structure.

In this embodiment, as shown in fig. 6 and 7, the forward limiting structure includes an operating part 41 and a forward limiting part 42, wherein the operating part 41 is mainly used for an operator to perform contact control, the specific shape of the operating part 41 is not fixed, and the contact control is convenient, in this embodiment, the operating part 41 includes a movable cylinder 411 and a ring 412 integrally formed at one end of the movable cylinder 411, the movable cylinder 411 is located at the front end of the carrier 1, the ring 412 is coaxially arranged with the carrier 1, the outer diameter of the ring 412 is greater than the outer diameter of the carrier 1, so that fingers of the operator abut against the ring 412, and the movable cylinder 411 is driven to move along the pushing direction relative to the carrier 1.

The forward direction limiting members 42 are fixedly connected with the operating member 41, in this embodiment, the forward direction limiting members 42 are located in an inner cavity of the carrier 1, two forward direction limiting members 42 are provided, each of the forward direction limiting members 42 is in a half-pipe shape, one end of each of the two forward direction limiting members 42 is fixedly connected with the movable barrel 411, inner arc surfaces of the two forward direction limiting members 42 are symmetrically arranged by taking the pushing block 31 as a center, the forward direction limiting members 42 are fixedly provided with second pin bodies 61 in a penetrating manner along a radial direction of the carrier 1, an inner cavity wall of the carrier 1 is provided with a sliding groove 14 along an axial direction of the carrier 1, and an exposed end of each of the second pin bodies 61 enters the sliding groove 14, so that sliding connection and rotation stopping connection of the forward direction limiting members 42 and the carrier 1 are realized; a plurality of forward limiting grooves 421 are formed in the axial side edge of the forward limiting member 42, and the forward limiting grooves 421 are arranged at intervals along the central axis direction of the carrier 1; a forward limiting tooth 43 is fixed on one side of the outer surface of the pushing block 31, which is far away from the insertion tube 2, the forward limiting tooth 43 is used for being internally engaged with a single forward limiting groove 421, in addition, a forward guide inclined surface 431 which is in butt joint along the pushing direction is arranged on the edge of the forward limiting tooth 43 and/or the notch of the forward limiting groove 421, and in the embodiment, the forward limiting tooth 43 and the notch of the forward limiting groove 421 are both provided with the forward guide inclined surface 431.

When the operating part 41 drives the forward limiting part 42 to move forward along the propulsion, through the meshing of forward limiting groove 421 and forward limiting tooth 43, in order to realize the relative fixed setting of forward limiting part 42 and promotion piece 31, and when the operating part 41 drives the forward limiting part 42 along the propulsion backward movement, through the effect of forward direction guiding inclined plane 431, make forward limiting tooth 43 and forward limiting groove 421 dodge each other in order to disengage from the meshing, realize promptly, along promoting backward, forward limiting part 42 and promotion piece 31 non-fixed setting.

Of course, the engagement form of the forward limiting tooth 43 and the forward limiting groove 421 is a form of achieving the forward limiting effect, so that the specific positions of the forward limiting tooth 43 and the forward limiting groove 421 can be adaptively adjusted, in some embodiments, the forward limiting groove 421 can be disposed on the pushing block 31, and the forward limiting tooth 43 can be disposed on the forward limiting member 42.

As shown in fig. 6 and 8, the forward limiting structure includes two reverse limiting members 51, in this embodiment, the two reverse limiting members 51 are symmetrically disposed around the pushing block 31, the reverse limiting members 51 are strip-shaped structures, one end of each reverse limiting member 51 is fixedly connected to one side of the pushing block 31 away from the insertion tube 2, a free end of each reverse limiting member 51 is inclined outward and disposed toward the insertion tube 2, and a cross-sectional area of each reverse limiting member 51 gradually decreases from the free end to the fixed end of each reverse limiting member 51; the free end of the reverse limiting piece 51 is fixed with a reverse limiting tooth 52, the carrier 1 is provided with a plurality of reverse limiting grooves 53 in a penetrating manner, each reverse limiting groove 53 is arranged along the direction of the central axis of the carrier 1 at intervals, the reverse limiting grooves 53 are used for being matched with the reverse limiting tooth 52, and the reverse limiting tooth 52 is provided with a reverse guide inclined plane 521 abutted along the forward direction.

When the forward limiting piece 42 is reset and applies an acting force moving along the pushing direction to the pushing block 31, the carrier 1, the reverse limiting piece 51 and the pushing block 31 are relatively fixed through the meshing of the reverse limiting groove 53 and the reverse limiting tooth 52; when the forward direction limiting piece 42 applies a force to the pushing block 31 to move in the forward direction of pushing, the reverse direction limiting tooth 52 and the reverse direction limiting groove 53 are separated from each other to disengage from each other by the reverse direction guiding inclined plane 521, that is, the reverse direction limiting piece 51 and the pushing block 31 are not fixedly arranged.

When the implant 100 is deployed, firstly, the insertion tube 2 is utilized to pierce through one side of the tissue tear to be sutured (at this time, the pushing block 31 is located at the first stepping gear), then the operating element 41 drives the forward limiting piece 42 to move forward for a stepping distance, in the process, the forward limiting piece 42 and the pushing block 31 are relatively fixedly arranged through the matching of the forward limiting tooth 43 and the forward limiting groove 421, so that the pushing block 31 moves forward for a stepping distance along with the forward limiting piece 42, meanwhile, the reverse limiting tooth 52 on the pushing block 31 is also clamped into the reverse limiting groove 53 (at this time, the pushing block 31 is located at the second stepping gear), and the first implant 100 (the implant 100 located near the opening of the insertion tube 2) in the insertion tube 2 is deployed to one side of the tissue tear by pushing the pushing needle 32 for a stepping distance in one direction and utilizing the mutual force transmission of the implants 100; then, the operating element 41 is moved in the pushing reverse direction, so that the forward direction limiting element 42 is moved in the reverse direction for resetting, in the process, firstly, the pushing block 31 and the carrier 1 are relatively fixedly arranged due to the matching of the reverse direction limiting tooth 52 and the reverse direction limiting groove 53, and secondly, the reverse direction limiting tooth 52 and the reverse direction limiting groove 53 are mutually avoided to be disengaged through the action of the reverse direction guiding inclined plane 521, so that the position of the pushing block 31 is kept unchanged at a second stepping position, namely, the forward direction limiting element 42 moves forward and backward, so that the pushing block 31 is moved in a one-way stepping mode.

The insertion tube 2 is then moved back and again to the other side of the tissue tear and the above operations are repeated to complete the deployment of a second implant 100, to complete the deployment of a pair of implants 100, and then the above steps are repeated until the deployment of multiple pairs of implants 100 is completed.

In the embodiment of the application, in order to improve the convenience of operation, pushing mechanism 3 can also include the elasticity structure that resets, and the elasticity structure that resets is used for forcing forward limit structure relative carrier 1 along promoting reverse direction motion, realizes promptly that forward limit structure's automation is rolled back and is reset convenient and fast.

The elastic reset structure can be arranged at one end of the forward limiting structure far away from the insertion pipe, and provides reverse motion tension for the forward limiting structure through the acting force generated by deformation, so that the forward limiting structure can automatically back off and reset after moving forward, and in a specific implementation, the elastic reset structure can be of a structure such as a pressure spring, a tension spring 62 and an elastic rope connected to the forward limiting structure.

In the embodiment shown in fig. 1, referring to fig. 6 and fig. 7, the elastic resetting structure includes a tension spring 62, the tension spring 62 is located at the central axis of the carrier 1, since the second pin body 61 is already fixed on the positive direction limiting member 42, a first pin body 63 can be arranged on the carrier 1, and the first pin body 63 is inserted and fixed on the carrier 1 along the radial direction of the carrier 1, so that two ends of the tension spring 62 are respectively connected with the first pin body 63 and the second pin body 61, and therefore, the positive direction limiting member 42 and the operating member 41 are pulled to reset by the acting force generated after the tension spring 62 is deformed.

In an embodiment of the present application, to further improve the surgical accuracy, the tissue repair device may further comprise a depth adjustment mechanism for defining the depth of penetration of the insertion tube 2 through the tissue.

In this embodiment, as shown in fig. 7 and 9, the depth adjusting mechanism includes a driving structure, the carrier 1 is movably provided with a depth adjusting pipe 72, the depth adjusting pipe 72 is sleeved outside the insertion pipe 2, and the driving structure is used for controlling the moving distance of the depth adjusting pipe 72; the depth adjusting pipe 72 can be directly connected with the carrier 1 in a sliding manner, and the depth adjusting pipe 72 can also be indirectly connected with the carrier 1 in a sliding manner by means of an intermediary structure, in this embodiment, in order to simplify the structure, the sliding rail member 13 can be used as the intermediary structure, specifically, a fixing pipe 134 is fixed at one end of the sliding rail member 13 close to the free end of the insertion pipe 2, the fixing pipe 134 is used for the push needle 32 and the insertion pipe 2 to pass through, one end of the depth adjusting pipe 72 is sleeved on the fixing pipe 134 in an interference manner, and the depth adjusting pipe 72 is connected with the carrier 1 in a sliding manner along the advancing direction by matching the depth adjusting pipe 72 with the sliding rail member 13; in addition, the depth adjusting pipe 72 is connected with the carrier 1 in a rotation-stopping manner, that is, the depth adjusting pipe 72 does not rotate relative to the carrier 1, in this embodiment, a rotation-stopping groove 132 is further formed in the slide rail member 13 in a penetrating manner along the axial direction of the carrier 1, the second pin 61 penetrates through the rotation-stopping groove 132 while penetrating through the forward direction limiting member 42, that is, the position of the second pin 61 is utilized to restrict the rotatable degree of freedom of the slide rail member 13, so that the rotation-stopping connection between the depth adjusting pipe 72 and the carrier 1 is realized.

The driving structure comprises a knob 71, the knob 71 is located at one end of the carrier 1 far away from the free end of the insertion tube 2, the knob 71 is rotatably connected with the carrier 1 around the central axis of the carrier 1, in this embodiment, two ends of the first pin body 63 extend out of the carrier 1, the knob 71 is provided with an annular matching groove 712, and the exposed end of the first pin body 63 is clamped in the matching groove 712, so that the rotary connection between the knob 71 and the carrier 1 around the central axis of the carrier 1 is realized.

The knob 71 is connected to the slide member 13 through a screw transmission structure, in this embodiment, the screw transmission structure includes a first screw portion 711 and a second screw portion 133, the first screw portion 711 is fixed to the knob 71, the second screw portion 133 is fixed to the slide member 13, and the first screw portion 711 is screw-engaged with the second screw portion 133.

When inserting, the mouth of the depth-adjusting tube 72 can abut against the outer wall of the tissue, and at this time, the distance of the insertion tube 2 extending out of the depth-adjusting tube 72 is the distance of the insertion tube 2 penetrating through the tissue.

Then, by rotating the rotary handle, the force transmission of the threaded connection is utilized to drive the depth adjusting pipe 72 to slide, that is, the sliding distance of the depth adjusting pipe 72 is controlled, so that the distance of the insertion pipe 2 extending out of the depth adjusting pipe 72 is controlled, and the insertion depth of the insertion pipe 2 is conveniently limited.

The application also discloses a tissue repair system.

A tissue repair system comprising the tissue repair device described above, at least two pairs of implants 100, and one or more sutures 200.

In which, as shown in fig. 10, the implant 100 is intended to be positioned in the insertion tube 2 to wait for the pushing of the pushing needle 32, the suture thread 200 is connected with the implant 100, in some embodiments, one suture thread 200 is simultaneously connected with all the pairs of implants 100, in this embodiment, one suture thread 200 may be connected with one or more pairs of implants 100, that is, all pairs of implants 100 are connected by a plurality of suture threads 200, respectively. Suture 200 is attached to implants 100 such that suture 200 passes through both implants 100 and pulling on the free ends of suture 200 tightens the suture 200 length of both implants 100.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A tissue repair device, comprising: the method comprises the following steps:

a carrier (1);

the insertion tube (2), the insertion tube (2) is arranged at one end of the carrier (1), and the insertion tube (2) is provided with a containing space for containing at least two pairs of linearly arranged implants (100);

the pushing mechanism (3), the pushing mechanism (3) includes pushing block (31), pushing needle (32) and unidirectional spacing assembly;

wherein the pushing block (31) is arranged on the carrier (1), the pushing needle (32) is positioned in the insertion tube (2), and the pushing needle (32) is connected with the pushing block (31); the one-way limiting assembly is used for only allowing the pushing block (31) to move in a one-way stepping mode relative to the carrier (1).

2. The tissue repair device of claim 1 wherein: the one-way spacing subassembly includes:

the forward limiting structure and the carrier (1) are movably arranged along the propulsion direction relatively, the forward limiting structure and the pushing block (31) are fixedly arranged along the propulsion forward direction relatively, and the forward limiting structure and the pushing block (31) are not fixedly arranged along the propulsion reverse direction;

reverse limit structure, reverse limit structure set up in on carrier (1), promote piece (31) along impel reverse direction with reverse limit structure relatively fixed sets up, promote piece (31) along impel forward direction with reverse limit structure non-fixed setting.

3. The tissue repair device of claim 2 wherein: the pushing mechanism (3) further comprises an elastic resetting structure, and the elastic resetting structure is used for forcing the forward limiting structure to move along the pushing reverse direction relative to the carrier (1).

4. The tissue repair device of claim 2 wherein: the positive limit structure comprises:

the operating piece (41), the operating piece (41) is relative to the carrier (1) and is movably arranged along the propulsion direction;

the forward limiting part (42), forward limiting part (42) are connected with operating parts (41), forward limiting part (42) or promote piece (31) and be equipped with a plurality of forward spacing grooves (421) of arranging the setting along the direction of propulsion interval, promote piece (31) or forward limiting part (42) are equipped with and are used for spacing tooth (43) of forward with forward spacing groove (421) complex forward, spacing tooth of forward (43) and/or the notch edge of forward spacing groove (421) is equipped with along promoting reverse looks butt forward direction inclined plane (431).

5. The tissue repair device of claim 2 wherein: the reverse limiting structure comprises a reverse limiting part (51), one end of the reverse limiting part (51) is connected with the pushing block (31), the other end of the reverse limiting part (51) or the carrier (1) is provided with a plurality of reverse limiting grooves (53) which are arranged and arranged at intervals along the pushing direction, the carrier (1) or the reverse limiting part (51) is provided with reverse limiting teeth (52) which are used for being matched with the reverse limiting grooves (53), and the reverse limiting teeth (52) and/or the notch edges of the reverse limiting grooves (53) are provided with reverse guide inclined planes (521) which are abutted along the pushing direction.

6. The tissue repair device of claim 1 wherein: still include the drive structure, carrier (1) is equipped with and adjusts dark pipe (72), it locates to adjust dark pipe (72) cover the outside of insert tube (2), adjust dark pipe (72) with carrier (1) is along propulsion direction sliding connection, the drive structure is used for controlling adjust the distance of sliding of dark pipe (72).

7. The tissue repair device of claim 6 wherein: the drive structure is located at an end of the carrier (1) remote from the insertion tube (2).

8. The tissue repair device of claim 6 wherein: the depth adjusting pipe (72) is connected with the carrier (1) in a rotation stopping manner; the driving structure comprises a knob (71), the knob (71) is rotatably connected with the carrier (1), and the knob (71) is connected with the depth adjusting pipe (72) through a thread transmission structure.

9. A tissue repair system, characterized by: the method comprises the following steps:

the tissue repair device of any one of claims 1 to 8;

at least two pairs of implants (100), said implants (100) being destined to be positioned in the housing space of the insertion tube (2);

sutures (200), one or more of the sutures (200) being connected between a respective one or more of a plurality of pairs of the implants (100).

10. The tissue repair system of claim 9, wherein: the connection of the suture (200) to the implants (100) comprises the suture (200) passing through both implants (100), pulling the free end of the suture (200) to tighten the length of the suture (200) between the two implants (100).

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