Anchor conveyors and conveying systems

Abstract

The present invention provides an anchor conveyor and conveying system, including a puncture drive structure, a puncture power structure, a puncture release structure and a retraction drive structure; the puncture drive structure is fixedly connected to the puncture needle; when the retraction drive structure moves from a first position to a second position along a first direction, the puncture release structure is driven to release the puncture drive structure, and the puncture drive structure moves along the second direction under the action of the puncture power structure to drive the puncture needle to perform a puncture action; when the retraction drive structure moves from the first direction to a third position, the puncture drive structure is driven to move along the first direction to drive the puncture needle to retract along the first direction, and the distance between the third position and the first position is greater than the distance between the second position and the first position. The present invention reduces the volume of the anchor conveyor, has a simple structure, and is easy to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an anchor conveyor and a conveying system. Background Art

[0002] The prostate is a gland in the male reproductive system, connected to the bladder and urethra, with a sphincter below. The normal size of the prostate is about 20 ml, the size of a walnut. However, under the influence of various factors, the prostate will proliferate and hypertrophy, exerting pressure on the urethra, causing urination difficulties, and then damaging bladder function, resulting in symptoms such as urination difficulties, frequent urination, and hematuria. It is a common disease in the elderly.

[0003] At present, the main treatment methods include drug therapy, laser resection, permanent stent expansion, disposable expander, prostate suspension and other technologies. Prostate suspension technology requires the use of an anchor delivery system, which is inserted into the prostate segment of the urethra, compresses the prostate, and then punctures the prostate with a puncture needle. After the puncture needle is withdrawn, the anchor with a PET (polyethylene terephthalate) line hidden inside remains on the outside of the prostate and hooks on the prostate outer membrane. Then a fixator is installed on the inside and the PET line is cut. After the delivery system is withdrawn, the prostate is constrained by the anchor to achieve the purpose of expanding the urethra.

[0004] In the prior art, the trigger can only move in one direction when retracting the puncture needle, and the stroke is almost the same, about 33 mm, resulting in a total width of the trigger and handle of about 78 mm in the initial state, which is difficult to operate with one hand. When operating, the doctor often needs an assistant to fix the cystoscope, holding the handle with one hand and pressing the trigger with the other hand.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In view of the problems in the prior art, the object of the present invention is to provide an anchor conveyor and a conveying system, which can reduce the volume of the anchor conveyor, have a simple structure and be easy to operate.

[0007] The embodiment of the present invention provides an anchor conveyor, comprising a puncture drive structure, a puncture power structure, a puncture release structure and a withdrawal drive structure; the puncture drive structure is fixedly connected to the puncture needle;

[0008] When the retraction drive structure moves from the first position to the second position along the first direction, the puncture release structure is driven to release the puncture drive structure, and the puncture drive structure moves along the second direction under the action of the puncture power structure to drive the puncture needle to perform the puncture action;

[0009] When the retraction drive structure moves along the first direction to the third position, the puncture drive structure is driven to move along the first direction to drive the puncture needle to retract along the first direction, and the distance between the third position and the first position is greater than the distance between the second position and the first position.

[0010] In some embodiments, an actuator is further included, and when the actuator is pressed, the retraction drive structure is driven to move along the first direction.

[0011] In some embodiments, a rack is provided on a side of the retraction drive structure facing the actuator, and the actuator is provided with a shift block meshing with the rack.

[0012] In some embodiments, the puncture release structure includes a rotating wheel and a buckle, and the withdrawal drive structure includes a release drive unit;

[0013] When the retraction drive structure is in the first position, the buckle blocks the movement of the puncture drive structure in the second direction. When the retraction drive structure moves from the first position to the second position, the release drive unit drives the rotating wheel to rotate and drives the buckle to move to the side away from the puncture drive structure to release the puncture drive structure.

[0014] In some embodiments, a limiting structure is further included, wherein the limiting structure includes a blocking state and a yielding state, and when the retracting driving structure moves from the first position to the second position, the limiting structure is in the blocking state to prevent the retracting driving structure from continuing to move along the first direction;

[0015] When the puncture drive structure moves to the limiting structure along the second direction, the limiting structure is driven to enter the yielding state without blocking the withdrawal drive structure from continuing to move along the first direction.

[0016] In some embodiments, the limiting structure is an elastic buckle arranged on the movement path of the withdrawal drive structure. When the puncture drive structure moves along the second direction to the elastic buckle, the elastic buckle is driven to undergo elastic deformation and enter the yielding state from the blocking state.

[0017] In some embodiments, the retraction drive structure includes a retraction lever protruding toward the puncture drive structure, and when the retraction drive structure moves along the first direction to the third position, the retraction lever drives the puncture drive structure to move along the first direction.

[0018] In some embodiments, the puncture power structure includes a spring pin and a main spring, and two ends of the main spring are respectively connected to the puncture drive structure and the spring pin;

[0019] The puncture drive structure includes a first drive part, and the spring pin includes a second drive part. When the puncture power structure moves along the second direction, the first drive part drives the second drive part to move in a direction away from the main spring, so that the spring pin is disengaged from the main spring.

[0020] In some embodiments, the two opposite side surfaces of the first driving part and the second driving part respectively have two inclined surfaces with the same inclination direction, and when the first driving part moves along the second direction, the inclined surface provides a component force to the second driving part in a direction away from the main spring.

[0021] In some embodiments, it also includes a pull-wire drive structure and a pull-wire locking member, wherein the pull-wire drive structure is fixed to the connecting line of the anchor, and when the puncture drive assembly moves along the second direction, the pull-wire drive structure is driven to move along the second direction until the pull-wire drive structure is locked by the pull-wire locking member.

[0022] In some embodiments, the wire pull locking member includes a spring sheet, one of the spring sheet and the wire pull driving structure is provided with a groove, and the other is provided with a boss, and when the wire pull driving structure is locked by the wire pull locking member, the boss at least partially enters the interior of the groove.

[0023] In some embodiments, a handle shell is further included, on which guide grooves corresponding to the puncture drive structure, the withdrawal drive structure and the wire pull drive structure are provided respectively.

[0024] In some embodiments, a wire cutting assembly is further included, the wire cutting assembly includes a broach, a wire cutting release structure and a first wire cutting drive structure, the broach is disposed on the first wire cutting drive structure;

[0025] When the retracting driving structure moves from the third position to the fourth position along the first direction, the first tangent driving structure is released by the tangent releasing structure, and the first tangent driving structure drives the broach to perform a tangent action.

[0026] In some embodiments, the tangent assembly also includes a clip push rod and a second tangent drive structure that supports the clip push rod. When the retraction drive structure moves from the third position to the fourth position along the first direction, the second tangent drive structure is first released by the tangent release structure, and the second tangent drive structure drives the clip to clamp the connecting line of the anchor through the clip push rod, and then the first tangent drive structure drives the broach to perform the tangent action.

[0027] In some embodiments, the retraction drive structure includes a gap avoidance portion, and the tangent release structure includes a tangent lever. In an initial state, the tangent lever is supported by the retraction drive structure to lock the first tangent drive structure and the second tangent drive structure. When the retraction drive structure moves to the fourth position, the tangent lever at least partially enters the gap avoidance portion and moves in a direction away from the first tangent drive structure and the second tangent drive structure, releasing the second tangent drive structure and the first tangent drive mechanism.

[0028] In some embodiments, a tangential spring is connected between the first tangential drive structure and the second tangential drive structure, and after the second tangential drive structure and the first tangential drive structure are released, they move relative to each other under the action of the tangential spring.

[0029] An embodiment of the present invention further provides an anchor delivery system, comprising a puncture needle, an anchor assembly and the anchor delivery device, wherein the anchor assembly at least partially enters the interior of the puncture needle, and the puncture needle is fixed to the puncture drive structure.

[0030] In some embodiments, the anchor assembly includes a connected anchor and a connecting line, the anchor conveyor includes a wire pulling assembly and a wire cutting assembly, the wire cutting assembly includes a broach and a clip, the wire pulling assembly is fixed to the connecting line, and when performing a wire cutting operation, the wire cutting assembly drives the clip to clamp into the connecting line, and the broach cuts off the connecting line.

[0031] The anchor conveyor and conveying system provided by the present invention have the following advantages:

[0032] The present invention reduces the volume of the anchor delivery device, has a simple structure, is easy to operate, and can be operated by one hand, greatly reducing the difficulty of the operation. The present invention provides a good foolproof design, and the next step can only be performed after the previous step is completed according to the surgical process, and there will be no misoperation, thereby avoiding surgical failure caused by misoperation. The present invention can be applied to the delivery of anchors at the prostate, and can also be applied to the delivery of anchors at other locations. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Other features, objectives and advantages of the present invention will become more apparent from a reading of the detailed description of non-limiting embodiments made with reference to the following accompanying drawings.

[0034] Figure 1 is a structural schematic diagram of an anchor delivery system according to an embodiment of the present invention;

[0035] Figure 2 is a perspective view of an anchor delivery system according to an embodiment of the present invention;

[0036] Figure 3 is a schematic structural diagram of an anchor assembly according to an embodiment of the present invention;

[0037] Figure 4 is a schematic structural diagram of an anchor member and a connecting line according to an embodiment of the present invention;

[0038] Figure 5 is a schematic structural diagram of an insertion section according to an embodiment of the present invention;

[0039] Figure 6 is a schematic structural diagram of a handle according to an embodiment of the present invention;

[0040] Figure 7 is a schematic structural diagram of a puncture needle according to an embodiment of the present invention;

[0041] Figure 8 is a schematic diagram of the cooperation between the puncture needle and the withdrawal slide according to an embodiment of the present invention;

[0042] Fig. 9 and Fig.10 It is a structural schematic diagram of a retracting slideway according to an embodiment of the present invention;

[0043] Fig.11 is a structural schematic diagram of a withdrawal mechanism according to an embodiment of the present invention;

[0044] Fig.12 is a schematic structural diagram of a trigger according to an embodiment of the present invention;

[0045] Fig.13 is a structural schematic diagram of a shift block according to an embodiment of the present invention;

[0046] Figures 14 to 17 It is a schematic diagram of the partial internal structure of a handle according to an embodiment of the present invention;

[0047] Fig.18 is a schematic diagram of prostate puncture according to an embodiment of the present invention;

[0048] Fig.19 is a schematic structural diagram of a tangent slider according to an embodiment of the present invention;

[0049] Figures 20-22 Schematic diagram of a tangent process according to an embodiment of the present invention.

[0050] Reference numerals:

[0051] 1 Handle 17 Thread trimmer lever

[0052] 2 Insert segment 18 Tangential spring

[0053] 3 Puncture needle 19 Thread cutting slide

[0054] 4 Anchor 20 Trigger spring

[0055] 5 Connection line 21 Retraction slide

[0056] 6 Clip 2101 Rack

[0057] 7 Insurance 2102 Retraction lever

[0058] 8 Trigger 2103 Airtightness

[0059] 9 Cystoscope connector 2104 release drive unit

[0060] 10 Handle housing 22 Rotating wheel

[0061] 110 Accommodation portion 23 Cable slider

[0062] 120 grip portion 24 wire spring

[0063] 11 Spring pin 25 Spring sheet

[0064] 111 Second driving part 251 Spring piece boss

[0065] 12 Main spring 26 Lever spring

[0066] 13 puncture slide 27 elastic buckle

[0067] 131 first driving unit 28 shift block

[0068] 14 Buckle 901 Prostate

[0069] 15 Clip push rod 902 Prostate outer membrane

[0070] 16 Broach DETAILED DESCRIPTION

[0071] The example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as being limited to the embodiments set forth herein; on the contrary, these embodiments are provided so that the present invention will be comprehensive and complete and the concept of the example embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated descriptions will be omitted. "Or" and "or" in the specification may both mean "and" or "or". Although the terms "upper", "lower", "between", etc. may be used in this specification to describe different exemplary features and elements of the present invention, these terms are used herein only for convenience, such as according to the directions of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional direction of the structure to fall within the scope of the present invention. Although "first" or "second" etc. are used in this specification to represent certain features, they are only for the purpose of representing the function, and are not used as a limitation on the number and importance of specific features.

[0072] The present invention provides an anchor conveyor, comprising a puncture drive structure, a puncture power structure, a puncture release structure and a withdrawal drive structure; the puncture drive structure is fixedly connected to the puncture needle, and the puncture power structure can provide the puncture drive structure with a power to move in a second direction. When the puncture drive structure moves along the second direction, it drives the puncture needle to perform a puncture action along the second direction. The present invention also includes an anchor conveying system, comprising an anchor, a puncture needle and the anchor conveyor. The anchor assembly at least partially enters the interior of the puncture needle, and the puncture needle is fixed to the puncture drive structure.

[0073] In an initial state, the retraction drive structure is located at a first position. During surgery, the anchor is at least partially hidden in the puncture needle, and the puncture needle is fixed to the puncture drive structure. The retraction drive structure is driven to move from the first position to the second position along the first direction, and the retraction drive structure drives the puncture release structure to release the puncture drive structure. The puncture drive structure moves along the second direction under the action of the puncture power structure to drive the puncture needle to perform a puncture action. When the retraction drive structure moves along the first direction to the third position, the puncture drive structure is driven to move along the first direction to drive the puncture needle to withdraw along the first direction and leave the anchor at the surgical position, and the distance between the third position and the first position is greater than the distance between the second position and the first position.

[0074] Therefore, the present invention is conducive to reducing the stroke of the withdrawal drive structure, reducing the volume of the anchor delivery device, having a simple structure and convenient operation, and the operator can operate it with one hand, which greatly reduces the difficulty of the operation. The present invention provides a good fool-proof design, and the next step can only be performed after the previous step is completed according to the surgical process, and there will be no misoperation, thus avoiding surgical failure caused by misoperation. The present invention can be applied to the delivery of anchors at the prostate, and can also be applied to the delivery of anchors at other locations.

[0075] The structure of the anchor delivery device and the anchor delivery system is described in detail below in conjunction with the drawings and specific embodiments. In this specific embodiment, delivery of prostate anchors is used as an example for illustration. It should be understood that the drawings and the following description are only examples and are not intended to limit the scope of protection of the present invention.

[0076] like Figures 1 to 5 As shown, in this embodiment, the anchor delivery system includes the anchor delivery device, the puncture needle 3 and the anchor 4, and the anchor delivery device includes a handle 1 and an insertion section 2. The handle 1 includes a handle shell 10, and the handle shell 10 includes a housing 110 for accommodating internal devices and a gripping portion 120 for the operator to hold. The housing at the housing 110 is in the form of a cover plate. When the instrument fails, the cover plate can be opened to manually complete operations such as pulling out the puncture needle 3 and cutting the line, and troubleshooting. The insertion section 2 is the part inserted into the urethra, which is composed of three parts: the guide tube of the cystoscope, the guide tube of the puncture needle 3, and the tangent guide groove. The puncture needle 3 is used to puncture the prostate and establish a delivery channel for the anchor 4. The tail end is fixed on the puncture drive structure in the handle 1 to achieve pushing and withdrawal. The anchor 4 is hidden in the puncture needle 3, cooperates with the clip 6 and the connecting line 5, and is implanted in the human body to play the role of suspending the prostate. The handle 1 is provided with a safety 7 for locking the puncture mechanism in the handle 1 to prevent misoperation during transportation and before surgery. The handle 1 is provided with an actuator, which in this embodiment is a trigger 8 for driving the pushing and retracting of the puncture needle 3 and the cutting of the line. The trigger 8 is inserted into the mounting column inside the handle 1 and can make a circular motion around the root axis.

[0077] like Figures 6 to 15As shown, the handle 1 of the anchor conveyor is provided with a puncture drive structure, a puncture power structure, a puncture release structure and a withdrawal drive structure. In this embodiment, the puncture drive structure is a puncture slide 13, which undertakes the puncture and withdrawal functions of the entire puncture needle 3. The puncture power structure includes a main spring 12 and a spring pin 11. The two ends of the main spring 12 are respectively fixed to the puncture slide 13 and the spring pin 11. The main spring 12 is used to provide power for puncturing the prostate and is in a pre-tightened state when leaving the factory. The withdrawal drive structure includes a withdrawal slide 21. A rack 2101 structure is provided below the withdrawal slide 21, and a shift block 28 is provided above the trigger 8. One end of the trigger spring 20 is fixed to the mounting column inside the handle 1, and the other end is connected to the shift block 28 to ensure that the trigger 8 assembly can reciprocate. Furthermore, the installation position of the trigger spring 20 and its rotation axis are not on the same plane, so the shift block 28 always tends to tilt upward under the action of the trigger spring 20, so that the shift block 28 is closely attached to and meshed with the rack 2101 of the retracting slide 21 to drive the retracting slide 21. Specifically, when the trigger 8 is pressed in the first direction, the retracting slide 21 is driven to move in the first direction through the meshing structure of the rack 2101. In this embodiment, the first direction is Figure 6 The direction from left to right in the figure is the direction from the far end to the near end.

[0078] The handle housing 10 is provided with guide grooves corresponding to the retracting slide 21 and the puncturing slide 13, respectively, to guide the movement direction of the retracting slide 21 and the puncturing slide 13. The puncturing slide 13 is fixedly connected to the puncturing needle 3, and the main spring 12 can give the puncturing slide 13 a power to move in the second direction. In this embodiment, the second direction is Figure 6 The direction from right to left in the second direction is the direction from the proximal end to the distal end, which is opposite to the first direction. When the puncture slide 13 moves in the second direction, the puncture needle 3 is driven to perform the puncture action in the second direction. The proximal end and the distal end are relative to the operator, that is, the end close to the operator and far from the surgical site is the proximal end, and the end close to the surgical site and far from the operator is the distal end.

[0079] In the initial state, the retraction slide 21 is located at the first position. During the operation, the anchor 4 is at least partially hidden in the puncture needle 3, and the puncture needle 3 is fixed to the puncture slide 13. The retraction slide 21 is driven to move from the first position to the second position along the first direction, and the retraction slide 21 drives the puncture release structure to release the puncture slide 13. The puncture slide 13 moves along the second direction under the action of the main spring 12 to drive the puncture needle 3 to perform the puncture action. When the retraction slide 21 moves from the first direction to the third position, the puncture slide 13 is driven to move along the first direction to drive the puncture needle 3 to withdraw along the first direction and leave the anchor 4 at the surgical position, and the distance between the third position and the first position is greater than the distance between the second position and the first position.

[0080] like Figure 6 As shown, the puncture release structure includes a rotating wheel 22 and a buckle 14, and the retracting slide 21 includes a release drive unit 2104. In this embodiment, the release drive unit 2104 is the right end surface of the retracting slide 21. When the retracting slide 21 is in the first position, the buckle 14 blocks the movement of the puncture slide 13 in the second direction. When the retracting slide 21 moves from the first position to the second position, the release drive unit 2104 drives the rotating wheel 22 to rotate, and drives the buckle 14 to move to the side away from the puncture slide 13 ( Figure 6 (moving downward in the middle) to release the puncture slide 13. Fig.10 As shown, the retraction drive structure includes a retraction lever 2102 protruding toward the puncture drive structure. When the retraction drive structure moves along the first direction to the third position, the retraction lever 2102 drives the puncture drive structure to move along the first direction.

[0081] like Fig.14 As shown, the conveyor further includes a limiting structure. In this embodiment, the limiting structure is an elastic buckle 27 disposed on the movement path of the withdrawing slide 21, and the elastic buckle 27 includes a blocking state and a yielding state. When the withdrawing slide 21 moves from the first position to the second position, the limiting structure is in the blocking state and blocks the withdrawing slide 21 from continuing to move along the first direction. When the puncture slide 13 moves along the second direction to the elastic buckle 27, the elastic buckle 27 is driven to undergo elastic deformation and enter the yielding state from the blocking state without blocking the withdrawing slide 21 from continuing to move along the first direction.

[0082] like Fig.14 and Fig.15As shown, in this embodiment, the puncture slide 13 includes a first driving part 131, and the spring pin 11 includes a second driving part 111. When the main spring 12 moves along the second direction, the first driving part 131 drives the second driving part 111 to move in a direction away from the main spring 12 ( Figure 6 The first driving part 131 and the second driving part 111 are respectively provided with two inclined surfaces with the same inclination direction on the two opposite sides of the first driving part 131 and the second driving part 111. When the first driving part 131 moves along the second direction, the inclined surface gives the second driving part 111 a component force in a direction away from the main spring 12. After the spring pin 11 is separated from the main spring 12, the puncture slide 13 is no longer restricted by the driving force of the main spring 12.

[0083] like Fig.16 and Fig.17 As shown, the conveyor also includes a wire pulling drive structure and a wire pulling lock. In this embodiment, the wire pulling drive structure is a wire pulling slider 23, and the handle housing 10 is provided with a guide groove for limiting the movement of the wire pulling slider 23. The wire pulling lock includes a spring sheet 25, a boss 251 is provided on one side of the spring sheet 25, and a groove is provided on one side of the wire pulling slider 23. The wire pulling slider 23 is fixed to the connecting line 5 of the anchor 4. When the puncture drive assembly moves along the second direction, the wire pulling slider 23 is driven to move along the second direction. When the groove of the wire pulling slider 23 moves to the boss 251 of the spring sheet 25, the boss 251 at least partially enters the interior of the groove, and the wire pulling slider 23 is locked in the current position. In another embodiment, the spring sheet 25 can also be provided with a groove, and the wire pulling slider 23 can be provided with a boss. Therefore, when the puncture slide 13 is driven to withdraw along the first direction by the withdrawal slide 21, the puncture slide 13 drives the puncture needle 3 to withdraw along the first direction, and the wire pull slider 23 is kept at the current position under the action of the spring sheet 25 and will not withdraw, and the connecting wire 5 will not withdraw. In this embodiment, the connecting wire 5 is a polymer wire with a certain hardness. Under the action of the hard connecting wire 5, the anchor 4 passes through the puncture needle 3 and reaches Fig.18 The status shown. Fig.18 In the figure, 901 indicates the prostate, and 902 indicates the prostate outer membrane.

[0084] like Figure 6 , Fig. 9 , Fig.11 and Fig.19As shown, the conveyor further includes a tangent assembly, which includes a broach 16, a tangent release structure, a tangent power structure, a clip push rod 15, a first tangent drive structure, and a second tangent drive structure. The broach 16 is arranged on the first tangent drive structure, and the clip push rod 15 is arranged on the second tangent drive structure. In this embodiment, the tangent release structure includes a tangent lever 17 and a lever spring 26, and the first tangent drive structure is a first tangent slider 19. The second tangent drive structure is a second tangent slider 19, and the tangent lever 17 clamps the two tangent sliders 19 to maintain the pre-tightened state of the tangent spring 18. The tangent spring 18 provides power during tangent and is in a pre-tightened state when leaving the factory. Fig.19 The tangent slider 19 on the left side is the first tangent slider 19, and the tangent slider 19 on the right side is the second tangent slider 19. The tangent power structure is a tangent spring 18 disposed between the two tangent sliders 19. Two limit grooves corresponding to the two tangent sliders 19 are disposed on the handle housing 10 to limit the motion range of the two tangent sliders 19.

[0085] like Figure 6 , Fig. 9 and Fig.11 As shown, the retractable slide 21 includes a clearance portion 2103. In the initial state, the tangent lever 17 is supported by the retractable slide 21 to lock the first tangent slider 19 and the second tangent slider 19, and the lever spring 26 has a certain elastic deformation. When the retractable slide 21 moves to the fourth position along the first direction, the tangent lever 17 at least partially enters the clearance portion 2103 under the action of the lever spring 26 and moves in a direction away from the first tangent drive structure and the second tangent drive structure, releasing the second tangent slider 19 and the first tangent drive mechanism. That is, the clearance portion 2103 can avoid the movement path of the trigger spring 20 and the trigger 8 lever after being released.

[0086] When the tangent lever 17 releases the second tangent slider 19 and the first tangent drive mechanism, the second tangent slider 19 is first released by the tangent lever 17, and the second tangent slider 19 moves along the second direction under the action of the tangent spring 18, and the clip 6 is driven by the clip push rod 15 to clamp the connecting line 5 of the anchor 4, and then the first tangent slider 19 is released, and the first tangent slider 19 moves along the first direction under the action of the tangent spring 18, driving the broach 16 to perform the tangent action and cut off the connecting line 5.

[0087] A complete workflow of the anchor delivery system is described in detail below in conjunction with the accompanying drawings. For the sake of clarity, the movement in the first direction is described as rightward movement, and the movement in the second direction is described as leftward movement, but this directional description is only for illustrative purposes and is not intended to limit the scope of protection of the present invention.

[0088] Step 1: install the anchor 4 and the connecting line 5 in the puncture needle 3, install the puncture needle 3 and the clip 6 in the insertion section 2 of the conveyor, fix the puncture needle 3 to the puncture slide 13, and the clip 6 cooperates with the clip push rod 15. After the cystoscope is installed on the cystoscope connector 9 on the handle 1, insert the insertion section 2 to the execution position, and then pull out the safety 7.

[0089] like Figure 6 As shown, at this time, the anchor conveyor is in the initial state, the retracting slide 21 is in the first position, the buckle 14 locks the puncture slide 13, and the two ends of the main spring 12 are respectively connected to the puncture slide 13 and the spring pin 11, and are pre-tightened to have a certain initial deformation. The tangent lever 17 is supported by the retracting slide 21 and locks the two tangent sliders 19, and the lever spring 26 and the tangent spring 18 are both pre-tightened to have a certain initial deformation.

[0090] Step 2: Press the trigger 8, so that the trigger 8 drives the retracting slide 21 to move about 3 mm to the right and reach the second position. The release drive unit 2104 of the retracting slide 21 drives the rotating wheel 22 to rotate, pushing the buckle 14 to move downward about 2 mm, thereby releasing the puncture slide 13. Under the action of the main spring 12, the puncture slide 13 pushes the puncture needle 3 out of the insertion section 2 and punctures the prostate. At the same time, the elastic buckle 27 is in a blocking state, preventing the retracting slide 21 from continuing to move to the right at the second position, thereby avoiding excessive retraction of the retracting slide 21 when the puncture is not completed.

[0091] When the puncture slide 13 moves to the left to the position of the elastic buckle 27, the elastic buckle 27 is driven to bend inward, and the elastic buckle 27 enters a yielding state and no longer blocks the retreat slide 21 from continuing to move to the right. Fig.15 As shown, the first driving part 131 of the puncture slide 13 drives the second driving part 111 of the spring pin 11, so that the spring pin 11 moves upward to be unhooked from the main spring 12, and the power of the main spring 12 no longer acts on the puncture slide 13. Fig.16 and Fig.17 As shown, the wire-pulling slider 23 moves to the left until its groove engages with the boss 251 of the spring sheet 25, and the wire-pulling slider 23 is held in this position.

[0092] Step 3: Continue to press the trigger 8, the trigger 8 drives the retracting slide 21 to move rightward about 20mm to reach the third position, and the retracting lever 2102 of the retracting slide 21 drives the puncture slide 13 to move rightward to retract the puncture rod. The wire pull slider 23 remains stationary due to the action of the spring sheet 25. Therefore, at this time, the puncture rod is retracted to the right, but the anchor 4 inside it does not retract under the support of the rigid connecting wire 5, and reaches the third position. Fig.18 The status shown.

[0093] Step 4, continue to press the trigger 8, the trigger 8 drives the retraction slide 21 to continue to move about 15mm to the right, and drives the puncture slide 13 to continue to move to the right. The puncture slide 13 drives the wire pull slider 23 to the right, so that the boss 251 of the spring sheet 25 is deformed and its locking effect is released. At this time, the tensioned wire pull spring pulls the wire pull slider 23 to retract to the right, and at the same time, the connecting line 5 is pulled to the right and is in a tensioned state. After the retraction slide 21 runs a distance greater than 33mm, the tangent lever 17 corresponds to the avoidance position of the retraction slide 21, loses the support of the retraction slide 21, and moves downward under the action of the lever spring 26, first releasing the second tangent slider 19 on the right. Under the action of the tangent spring 18, the second tangent slider 19 drives the clip push rod 15 to move to the left and clamps the clip 6 into the connecting line 5, reaching the state shown in 20, and then the clip push rod 15 is separated from the clip 6 and reaches Fig.21 Then release the first tangent slider 19 on the left side, the first tangent spring 18 moves to the right and drives the pull piece to perform the tangent action, cutting off the connecting line 5, and reaching Fig. 22 Status shown.

[0094] Therefore, the overall operation of the anchor conveyor includes three main parts: releasing the puncture slide 13 to perform prostate puncture; retracting the puncture slide 13, but while withdrawing the puncture needle 3, the anchor 4 inside it is retained on the prostate outer membrane; pushing out the clip 6 to clamp it on the connecting line 5, and cutting the line through the broach 16.

[0095] The retracting slide 21 of the present invention, driven by the trigger 8, can sequentially complete the actions of firing the main spring 12, retracting the puncture slide 13, and firing the cutting assembly, that is, the steps of puncturing, retracting the puncture needle 3, and cutting the connecting line 5 can be sequentially completed, providing an effective fool-proof design. Only after the previous step is completed can the next step be continued without misoperation, thereby improving the surgical effect. In addition, the present invention reduces the stroke of the trigger 8 and the volume of the overall anchor conveyor through a clever structural design, making it convenient for the operator to operate with one hand.

[0096] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An anchor conveyor, characterized in that: It comprises a handle, wherein the handle is provided with a puncture drive structure, a puncture power structure, a puncture release structure, a retraction drive structure and an actuator; the puncture drive structure is fixedly connected to the puncture needle; When the retraction drive structure moves from the first position to the second position along the first direction, the puncture release structure is driven to release the puncture drive structure, and the puncture drive structure moves along the second direction under the action of the puncture power structure to drive the puncture needle to perform the puncture action; When the retraction drive structure moves to the third position along the first direction, the puncture drive structure is driven to move along the first direction to drive the puncture needle to retract along the first direction, and the distance between the third position and the first position is greater than the distance between the second position and the first position; Among them, the retraction drive structure includes a retraction slide, and the retraction slide is provided with a rack on the side facing the actuator, and the actuator is provided with a shift block meshing with the rack. When the actuator is pressed, the retraction drive structure is driven to move along the first direction, and a trigger spring is provided between the shift block and the mounting column inside the handle. The rack includes a plurality of teeth, and the first surface of each tooth of the rack is a vertical surface, and the second surface is an inclined surface. The first surface and the second surface intersect on the side away from the rack, and the second surface of each tooth is located on the side of the first surface along the first direction.

2. The anchor conveyor according to claim 1, characterized in that: The puncture release structure includes a rotating wheel and a buckle, and the withdrawal drive structure includes a release drive part; When the retraction drive structure is in the first position, the buckle blocks the movement of the puncture drive structure in the second direction. When the retraction drive structure moves from the first position to the second position, the release drive unit drives the rotating wheel to rotate and drives the buckle to move to the side away from the puncture drive structure to release the puncture drive structure.

3. The anchor conveyor according to claim 1, characterized in that: It also includes a limiting structure, the limiting structure includes a blocking state and a yielding state, when the withdrawing driving structure moves from the first position to the second position, the limiting structure is in the blocking state to prevent the withdrawing driving structure from continuing to move along the first direction; When the puncture drive structure moves to the limiting structure along the second direction, the limiting structure is driven to enter the yielding state without blocking the withdrawal drive structure from continuing to move along the first direction.

4. The anchor conveyor according to claim 3, characterized in that: The limiting structure is an elastic buckle arranged on the movement path of the withdrawal driving structure. When the puncture driving structure moves along the second direction to the elastic buckle, the elastic buckle is driven to undergo elastic deformation and enter the yielding state from the blocking state.

5. The anchor conveyor according to claim 3, characterized in that: The retraction drive structure includes a retraction lever protruding toward the puncture drive structure. When the retraction drive structure moves along the first direction to the third position, the retraction lever drives the puncture drive structure to move along the first direction.

6. The anchor conveyor according to claim 1, characterized in that: The puncture power structure comprises a spring pin and a main spring, and two ends of the main spring are respectively connected to the puncture drive structure and the spring pin; The puncture drive structure includes a first drive part, and the spring pin includes a second drive part. When the puncture power structure moves along the second direction, the first drive part drives the second drive part to move in a direction away from the main spring, so that the spring pin is disengaged from the main spring.

7. The anchor conveyor according to claim 6, characterized in that: The two opposite side surfaces of the first driving part and the second driving part respectively have two inclined surfaces with the same inclination direction. When the first driving part moves along the second direction, the inclined surface provides a component force to the second driving part in a direction away from the main spring.

8. The anchor conveyor according to claim 1, characterized in that: It also includes a pull-wire drive structure and a pull-wire locking piece. The pull-wire drive structure is fixed to the connecting line of the anchor. When the puncture drive structure moves along the second direction, the pull-wire drive structure is driven to move along the second direction until the pull-wire drive structure is locked by the pull-wire locking piece.

9. The anchor conveyor according to claim 8, characterized in that: The wire-pulling locking member comprises a spring sheet, one of the spring sheet and the wire-pulling driving structure is provided with a groove, and the other is provided with a boss. When the wire-pulling driving structure is locked by the wire-pulling locking member, the boss at least partially enters the interior of the groove.

10. The anchor conveyor according to claim 8, characterized in that The handle further comprises a handle shell, and the handle shell is provided with guide grooves corresponding to the puncture drive structure, the withdrawal drive structure and the wire pull drive structure respectively.

11. The anchor conveyor according to claim 1, characterized in that: It also includes a tangent assembly, the tangent assembly includes a broach, a tangent release structure and a first tangent drive structure, the broach is arranged on the first tangent drive structure; When the retracting driving structure moves from the third position to the fourth position along the first direction, the first tangent driving structure is released by the tangent releasing structure, and the first tangent driving structure drives the broach to perform a tangent action.

12. An anchor conveyor according to claim 11, characterized in that The tangent assembly also includes a clip push rod and a second tangent drive structure that carries the clip push rod. When the retraction drive structure moves from the third position to the fourth position along the first direction, the second tangent drive structure is first released by the tangent release structure, and the second tangent drive structure drives the clip to clamp the connecting line of the anchor through the clip push rod, and then the first tangent drive structure drives the broach to perform the tangent action.

13. An anchor conveyor according to claim 12, characterized in that The retraction drive structure includes a gap avoidance portion, and the tangent release structure includes a tangent lever. In an initial state, the tangent lever is supported by the retraction drive structure to lock the first tangent drive structure and the second tangent drive structure. When the retraction drive structure moves to the fourth position, the tangent lever at least partially enters the gap avoidance portion and moves in a direction away from the first tangent drive structure and the second tangent drive structure, releasing the second tangent drive structure and the first tangent drive structure.

14. The anchor conveyor according to claim 12, characterized in that A tangential spring is connected between the first tangential drive structure and the second tangential drive structure. After being released, the second tangential drive structure and the first tangential drive structure move relative to each other under the action of the tangential spring.

15. An anchor delivery system, characterized in that: The invention comprises a puncture needle, an anchor assembly and the anchor conveyor according to any one of claims 1 to 14, wherein the anchor assembly at least partially enters the interior of the puncture needle, and the puncture needle is fixed to the puncture drive structure.

16. The anchor delivery system according to claim 15, characterized in that The anchor assembly includes a connected anchor and a connecting line, the anchor conveyor includes a wire pulling assembly and a wire cutting assembly, the wire cutting assembly includes a broach and a clip, the wire pulling assembly is fixed to the connecting line, when performing a wire cutting operation, the wire cutting assembly drives the clip to clamp into the connecting line, and the broach cuts off the connecting line.

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