A handle control device for a tissue anchoring system

Abstract

This utility model relates to the field of medical devices, specifically to a handle control device for a tissue anchoring system. The device includes a handle upper cover (6), a handle lower cover (26), a sliding assembly (2), a push-pull rod assembly (13), a spool lock (12), a clutch block (17), and a spool gear (11). The sliding assembly (2) can selectively move up and down or move towards or away from the spool gear (11), thereby driving the movement of the push-pull rod assembly (13). The push-pull rod assembly (13) can apply a thrust to the clutch block (17) so that the clutch block (17) drives the spool lock (12) to lock the spool gear (11). The state of the spool gear (11) being locked or released can be displayed through the sliding assembly (2). The system of this invention adjusts the locking and releasing of the spool gear to be controlled by a sliding button. The sliding button is easier to operate than a button, and it is easier to observe and clearly indicate the position. The operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a handle control device for a tissue anchoring system. Background Technology

[0002] Patent CN204293210U discloses a tissue anchoring system, the handle of which has the following structure: Figure 1 As shown, this device requires multiple locking and releasing of the spool gear during product use. The locking and releasing of the spool gear in this tissue anchoring system requires operating a button on the handle, such as... Figure 1 As shown in Figure 1, the spool gear lock is locked when the button is pressed down and released when the button is released. However, in actual use, the pressed and released states of the button are not particularly easy to observe and are not convenient to clearly indicate. In addition, the locking and releasing of the spool gear is controlled solely by the button, without any other linkage protection measures.

[0003] In view of the shortcomings of the above-mentioned tissue anchoring system in clinical use, it is necessary to improve the relevant structures in the anchoring system in order to improve the clinical efficiency of the tissue anchoring system. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a novel handle control device for a tissue anchoring system. In terms of handle operation, this invention adjusts the locking and releasing of the spool gear to be controlled by a sliding knob.

[0005] When the slider is slid to the release position, the spool gear lock is released; when the slider is slid to the lock position, the spool gear lock is locked. The slider is easier to operate than the button, and it is also easier to observe and clearly indicate the lock.

[0006] This utility model provides a handle control device for a tissue anchoring system. The device includes an upper handle cover, a lower handle cover, a sliding assembly, a push-pull rod assembly, a spool lock, a clutch block, and a spool gear.

[0007] The sliding component can selectively move up and down or move closer to or further away from the spool gear, thereby driving the movement of the push-pull rod assembly. The push-pull rod assembly can apply a thrust to the clutch block, causing the clutch block to drive the spool lock to lock the spool gear. The state of the spool gear being locked or released can be displayed through the sliding component.

[0008] The sliding assembly includes a sliding button guide plate and a sliding button base. The sliding button guide plate is detachably fixed to the sliding button base. The sliding button guide plate can move up and down along a through groove on the sliding button base, and the sliding button guide plate can also drive the sliding button base to move left and right.

[0009] The push-pull rod assembly includes a slider assembly, the upper end of which is detachably connected to the sliding button base. This ensures that when the sliding button guide plate moves left or right, it can drive the sliding button base and the slider assembly to move away from or towards the spool gear.

[0010] The spool lock is connected to the clutch block. When the slider assembly moves toward the spool gear, the slider assembly pushes the clutch block, thereby driving the spool lock to lock the spool gear.

[0011] In this utility model, as one embodiment, the sliding assembly further includes a sliding button and a sliding button cover plate fixed to the handle cover. The sliding button cover plate is provided with a Z-shaped groove. The Z-shaped groove should be interpreted broadly, and similar shapes such as double right angles and elongated shapes are all within the protection scope of this application. The sliding button is fixed to the sliding button cover plate and can move along the Z-shaped groove. The bottom of the sliding button is fixedly connected to the upper protrusion of the sliding button guide plate. When the sliding button moves, it can drive the sliding button guide plate to move, thereby driving the sliding button base and the slider assembly to move. The locking or releasing state of the spool gear can be indicated by the sliding button in the sliding assembly.

[0012] In this invention, as one embodiment, the upper surface of the sliding button cover is provided with a locking / releasing mark. When the sliding button moves up and down at the inflection point, it can drive the sliding button guide plate to move up and down along the through groove on the sliding button base. When the sliding button is pushed to the right from the inflection point, the sliding button drives the sliding button guide plate, the sliding button base, and the slider assembly to move closer to the spool gear. The slider assembly pushes the clutch block, thereby driving the spool lock to lock the spool gear. When the sliding button is pushed to the left from the inflection point, the sliding button drives the slider assembly to move away from the spool gear. The clutch block is pushed away from the spool gear by the spring, thereby driving the spool lock to release the spool gear.

[0013] In this utility model, as one embodiment, the sliding button cover plate is provided with two perforated cylinders, which are directly opposite the two screw holes on the handle cover. After the gasket is installed, the sliding button cover plate and the handle cover plate are connected and fixed by the cover plate screws. In the cavity formed by the sliding button cover plate and the handle cover plate, there are gasket springs, ball bearings, sliding button base and sliding button guide plate.

[0014] In this utility model, as one embodiment, the bottom surface of the sliding button guide plate is provided with an elongated groove into which a pin passes. The elongated groove is used to accommodate the pin. When the pin is fixed, the sliding button guide plate can still drive the sliding button to complete the upward or downward reversal.

[0015] In this utility model, as one embodiment, the upper surface of the sliding button base is provided with a rectangular through groove and a first through hole extending to the lower surface. The through groove is used to accommodate the square protrusion at the lower end of the sliding button guide plate, allowing the sliding button guide plate to slide up or down along the through groove on the sliding button base. The pin passes through the first through hole, and the upper end of the pin passes through the long groove on the sliding button guide plate with its upper end facing upward, and is flush with the upper end surface of the bottom surface of the sliding button guide plate. The pin passes downward into the third through hole of the slider. The pin effectively connects the sliding button guide plate and the sliding button, the sliding button base and the push-pull rod assembly, so that when the sliding button moves to the left or right, the release and locking states of the spool gear can be completed through the push-pull rod assembly.

[0016] In this utility model, as one embodiment, the side of the sliding button base is provided with a countersunk hole. A washer spring and a ball are placed in the countersunk hole from the inside out. When the sliding button moves to the release position, the washer spring pushes the ball into the first recess of the handle cover, thus fixing the sliding button in the release position. When the sliding button moves from the release position to the locking position, the ball compresses the washer spring and moves with it until it reaches the locking position. At this point, the washer spring pushes the ball into the second recess of the handle cover, locking the sliding button in the locking position.

[0017] In this utility model, as one embodiment, the push-pull rod assembly includes a slider assembly, a connecting rod, and a three-point connecting rod assembly. The upper end of the slider assembly is detachably connected to the sliding button base, thereby ensuring that when the sliding button guide plate moves left and right, it can drive the sliding button base and the slider assembly to move away from or towards the spool gear. The distal end of the connecting rod passes through the slider assembly, and the proximal end is detachably connected to the three-point connecting rod assembly. The slider assembly can drive the connecting rod to move, and the connecting rod can then drive the three-point connecting rod assembly to move.

[0018] In this utility model, as one embodiment, the push-pull rod assembly includes a slider assembly, a connecting rod, and a three-point connecting rod assembly. The connecting rod has multiple bends and a protruding proximal end to ensure that the parts threaded onto the connecting rod do not fall off from the proximal end. The three-point connecting rod assembly, the slider assembly, the slider spring, and the fixing washer are sequentially inserted into the connecting rod. After all the parts are inserted, the distal end of the connecting rod is flattened to ensure that the parts on the connecting rod also do not fall off from the distal end.

[0019] In this utility model, as one embodiment, the slider assembly includes a slider. When the slider moves away from the clutch block, the clutch block is pushed away from the spool gear by the clutch block spring until the arc notch on the clutch block abuts against the limiting reinforcing rib of the handle cover. The elongated groove on the clutch block drives the cylindrical column on the spool lock, causing the second ratchet on the spool lock to disengage from the first ratchet on the spool gear, thus completing the release of the spool gear. At the same time, the slider spring on the push-pull rod assembly is compressed to the left, causing the connecting rod to tend to move to the left. When the connecting rod moves to the left, the three-point connecting rod assembly, with the pin as the axis, drives the slider pin on the slider, thereby driving the slider to move away from the spool gear, ensuring smoother release of the sewing thread.

[0020] In this invention, as one embodiment, the slider on the slider assembly presses the clutch block pin on the clutch block to the right, causing the clutch block to move towards the spool gear with the bottom pin as its axis. At the same time, the clutch block spring is compressed, the arc notch on the clutch block moves away from the limiting reinforcing rib of the handle cover, the elongated groove on the clutch block disengages from the cylindrical post on the spool lock, and the second ratchet on the spool lock engages with the first ratchet of the spool gear under the pull of the tension spring, so that the spool gear cannot rotate, thus completing the locking state. Simultaneously, the slider spring on the push-pull rod assembly is no longer compressed, returns to its original length, and disengages from the slider assembly. The push-pull rod assembly no longer acts on the slider, and the slider pushes to the left towards the spool gear under the spring's force.

[0021] In this utility model, as one embodiment, the device further includes a handle intermediate body and a slider. The handle intermediate body is connected to the handle top cover by a handle screw. The slider and the spring are both placed between the handle intermediate body and the handle top cover. The slider is provided with an arc surface, which engages with the teeth of the spool gear. When in the released state, the slider moves to the right, and the arc surface disengages from the teeth of the spool gear, making the release smoother. When in the locked state, the arc surface contacts the teeth of the spool gear to play a braking role, thereby locking the device.

[0022] In this invention, as one embodiment, the spool gear can only rotate in one direction.

[0023] In this invention, as one embodiment, the first ratchet on the spool gear has an asymmetrical structure, with the tip of the first ratchet deflected counterclockwise. The second ratchet on the spool lock has a tooth profile corresponding to the first ratchet on the spool gear, and the tip of the second ratchet on the spool lock also deflects counterclockwise. This ensures that when the first ratchet on the spool gear and the second ratchet on the spool lock mesh, the spool gear can only rotate clockwise and not counterclockwise.

[0024] In this invention, as one embodiment, the device includes a transport braking function achieved through a thumb push rod, a brake, and a rubber rod.

[0025] In this utility model, as one embodiment, the thumb push rod moves back and forth along the slide rail of the lower cover of the handle. When the tissue anchoring system is in the factory state, the thumb push rod is at the closest end, and the push button protrusion on the handle push button is pushed by the brake spring. The crossbar of the thumb push rod, which is fixed in the first groove of the lower cover of the handle, will squeeze the transport brake, causing the torsion spring to be compressed. The rubber rod is tightly attached to the first ratchet of the spool gear, so that the spool gear is fixed and cannot rotate, thus playing the role of transport braking.

[0026] In this utility model, as one embodiment, the rubber rod is fixed in the blind hole on the arc surface of the brake, and can be selectively bonded with glue. The total length of the rubber rod is greater than the depth of the blind hole. There is a second through hole on the right side of the upper end face of the brake. The bushing is located on the through hole. The torsion spring is sleeved on the bushing. The two torsion feet of the torsion spring are fixed to the brake and the lower cover of the handle, respectively. The screw passes through the torsion spring, the bushing, and the brake and is fixed to the lower cover of the handle.

[0027] In this utility model, as one embodiment, when the transport brake is released, the thumb push rod moves from the proximal end to the distal end. When the thumb push rod moves to the farthest end, the push button protrusion on the handle push button is pushed by the brake spring and fixed in the second groove of the lower cover of the handle. The thumb push rod moves forward, the crossbar of the thumb push rod separates from the brake, the torsion spring returns to its free state, and drives the rubber rod on the brake away from the first ratchet of the spool gear. That is, the spool gear is no longer constrained, the braking state is released, and it can rotate freely.

[0028] In this invention, as one embodiment, the above-mentioned device achieves the transport braking function through a thumb push rod, a brake, and a rubber rod.

[0029] This invention adds a linkage mechanism inside the handle and a protection mechanism for the release of the spool gear, ensuring that the locking and releasing of the sewing thread is safer and smoother.

[0030] This utility model mainly improves the structure in CN204293210U. All parts not covered in this utility model refer to the description or teaching in CN204293210U and can be incorporated into this utility model as a part of this utility model.

[0031] This device uses a sliding knob which is easier to operate than a button, and it is also easier to observe the locking and releasing status of the spool gear.

[0032] This device incorporates a protective mechanism for the release of the spool gear, ensuring safer and smoother thread release.

[0033] This device is equipped with an initial braking protection device to prevent the product from changing the initial position of the internal seams during transportation. Attached Figure Description

[0034] Figure 1 : A schematic diagram of the handle portion of a tissue anchoring system disclosed in the prior art;

[0035] Figure 2 Example 1: A schematic diagram of the handle appearance and some structural features of the tissue anchoring system handle control device described in Example 1.

[0036] Figure 3 : Schematic diagram of the sliding button cover plate as described in Example 1;

[0037] Figure 4 : Schematic diagram (exploded view) of the structure of the spool gear locking and releasing system described in Example 1;

[0038] Figure 5 Example 1: Overall assembly drawing of the handle control device of the tissue anchoring system (inner front view of the handle).

[0039] Figure 6 : Schematic diagram of the structure of the push-pull rod assembly described in Example 1 (exploded view);

[0040] Figure 7 Example 1: Assembly diagram of the push-pull rod assembly;

[0041] Figure 8 Example 1: A schematic diagram of the internal structure of the handle when the sliding button is slid to the locked position;

[0042] Figure 9 Enlarged schematic diagram of the spool gear and the ratchet on the spool lock;

[0043] Figure 10 : Schematic diagram of the connection between the sliding button and the push-pull rod assembly;

[0044] Figure 11 : Schematic diagram of the handle top cover structure (exterior view);

[0045] Figure 12 : Schematic diagram of the sliding button guide plate structure described in Example 1;

[0046] Figure 13 : Schematic diagram of the sliding button base structure described in Example 1;

[0047] Figure 14 Example 1: Side view of the device in its factory condition (including thumb push rod and handle push button).

[0048] Figure 15: Schematic diagram of the handle lower cover structure described in Example 1;

[0049] Figure 16 Example 1: A schematic diagram of the structure in which the thumb push rod can be fixed to the lower cover of the handle;

[0050] Figure 17 Example 1: Schematic diagram of the internal state of the handle when the device leaves the factory;

[0051] Figure 18 : Schematic diagram of the transport braking mechanism of the device described in Example 1;

[0052] Figure 19 Example 1: Schematic diagram of the thumb pusher position when the transport brake of the device is released;

[0053] Figure 20 : Schematic diagram of the internal state of the handle when the transport brake of the device described in Example 1 is released;

[0054] Figure 21 : Schematic diagram of the slider structure described in Example 1;

[0055] Figure 22 : Schematic diagram of the intermediate body structure of the handle of the device described in Example 1;

[0056] Figure 23 : Multi-view view of the sliding button guide plate structure described in Example 1;

[0057] Figure 24 : Diagram showing the location of the catheter tip side opening as described in Example 1;

[0058] Figure 25 : Schematic diagram of the anchor component conveying device;

[0059] Figure 26 : Schematic diagram of the anchor component;

[0060] Explanation of reference numerals in the attached drawings: 1. Handle button; 2. Sliding assembly; 20. Sliding button cover; 3. Perforated cylinder; 31. Sliding button base; 4. Through groove; 41. First through hole; 42. Countersunk hole; 43. Pin; 5. Handle top cover; 6. Limiting reinforcing rib; 61. Screw hole; 62. First recess; 63. Second recess; 64. Slider; 7. Slider pin; 71. Arc surface; 72. Spring; 8. Handle intermediate body; 9. Tension spring; 10. Spool gear; 11. First ratchet; 111. Spool lock; 12. Second ratchet on the spool lock; 121. Cylindrical column; 122. Irregular protrusion; 123.

[0061] Push-pull rod assembly 13; fixed washer 131; slider spring 132; connecting rod 133; proximal end 1331; distal end 1332; slider assembly 134; slider 1341; third through hole 13411; three-point linkage assembly 135; pin 1351; three-point linkage 1352; elongated hole swing arm 13521; handle screw 14; bottom pin 15; clutch spring 16; clutch 17; arc notch 171; elongated groove 172; clutch pin 18; cover plate screw 19; washer 2000; washer spring 2001; ball 2002; sliding button Guide plate 23; upper protrusion 231; long groove 232; upper surface of bottom surface 233; thumb push rod 24; crossbar 241; handle push button 25; push button protrusion 251; handle lower cover 26; slide rail 261; first groove 262; second groove 263; brake 27; upper surface 271; second through hole 272; brake arc surface 273; blind hole 274; brake spring 275; bushing 28; rubber rod 281; torsion spring 29; screw 30; handle protrusion 37; release mark 887; locking mark 888; Z-shaped groove 889; square protrusion 890;

[0062] Tissue anchor component delivery device 100; catheter 110; handle control device 200; tissue anchor component 2003; catheter body tip 112; thumb wheel 113; catheter body tip side opening 114; guide wire 2200. Detailed Implementation

[0063] The technical solutions of the present utility model will now be described with reference to the accompanying drawings of the embodiments. The described embodiments are merely some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0064] Example 1

[0065] This embodiment discloses a handle control device for a tissue anchoring system. The device mainly includes an upper handle cover 6, a lower handle cover 26, a sliding component 2, a push-pull rod assembly 13, a spool lock 12, a clutch block 17, and a spool gear 11.

[0066] The sliding component 2 can selectively move up and down or move closer to or away from the spool gear 11, thereby driving the movement of the push-pull rod assembly 13. The push-pull rod assembly 13 applies a thrust to the clutch block 17, causing the clutch block 17 to drive the spool lock 12 to lock the spool gear 11. The state of the spool gear 11 being locked or released can be displayed by the sliding component 2.

[0067] The sliding assembly 2 mainly includes a sliding button 20, a sliding button cover plate 3, a sliding button base 4, and a sliding button guide plate 23;

[0068] The push-pull rod assembly 13 mainly includes a slider assembly 134, a connecting rod 133, a fixing washer 131, a slider spring 132, and a three-point connecting rod assembly 135; the spool gear 11 includes a spool gear 11, which can only rotate in one direction.

[0069] The sliding button cover plate 3 is provided with a Z-shaped groove 889, and the sliding button 20 is fixed to the sliding button cover plate 3 and can move along the Z-shaped groove. Figure 2 As shown.

[0070] The push-pull rod assembly 13 mainly includes a slider assembly 134, a connecting rod 133, a fixing washer 131, a slider spring 132, and a three-point connecting rod assembly 135; the spool gear 11 can only rotate in one direction.

[0071] like Figure 3 As shown, locking and releasing indicators are added to the sliding button cover plate 3, with release indicator 887 and locking indicator 888, clearly indicating the state of the spool gear 11 represented by the position to which the sliding button 20 moves. When the sliding button 20 moves to the upper left, the spool gear 11 is in the released state; when the sliding button 20 moves to the lower right, the spool gear 11 is in the locked state. The terms "upper left" and "lower right" are only used in this embodiment in conjunction with the appendix. Figure 3 This is an illustrative example and does not represent a limitation on actual location.

[0072] like Figure 3 The release and lock positions are not on the same horizontal line. That is, when the sliding button 20 moves to the inflection point, it needs to be reversed upward or downward. After reversing, it continues to move to the left or right until the release or lock position is reached.

[0073] This device uses a sliding button, which is easier to operate than a button, and also makes it easier to observe the locking and releasing status of the spool gear. In this embodiment, a sliding button 20 is used in conjunction with... Figure 3 The release / lock indicator shown allows the operator to clearly understand the internal state of the device.

[0074] like Figure 4 The diagram shown is an exploded view of the system device for locking and releasing the control spool gear. After being assembled into an anchoring system, the product's exterior only shows the sliding button 20, the sliding button cover 3, and the handle cover 6; all other components are inside the handle.

[0075] Figure 5 The state is the internal structural state of the handle when the sliding button 20 is slid to the release position.

[0076] like Figure 5 As shown, at this time, the slider 1341 on the slider assembly 134 of the push-pull rod assembly 13 is away from the clutch block 17, and the clutch block 17 is in its original state. That is, it is pushed away from the spool gear 11 by the clutch block spring 16, until the arc notch 171 on the clutch block 17 abuts against the limiting reinforcing rib 61 of the handle cover 6. The arc notch 171 refers to the narrow arc-shaped notch between the clutch block 17 and the limiting reinforcing rib 61, such as... Figure 5 The diagram shows the internal structure of the handle when the sliding button 20 is slid to the release position. The elongated groove 172 on the clutch block 17 drives the cylindrical column 122 on the spool lock 12, causing the second ratchet 121 on the spool lock to disengage from the first ratchet 111 on the spool gear 11. The spool gear 11 can then rotate freely, i.e., it is released.

[0077] At the same time, the slider spring 132 on the push-pull rod assembly 13 is compressed to the left, causing the connecting rod 133 to tend to move to the left. Specifically, as shown in the figure... Figure 7 The end face of the slider assembly 134 presses against the slider spring 132. When the slider assembly 134 moves to the left, it compresses the slider spring 132, causing the connecting rod 133 to move to the left. When the connecting rod 133 moves to the left, the three-point connecting rod assembly 135, with the pin 1351 as the axis, and the elongated rocker arm 13521 of the three-point connecting rod 1352, drives the slider pin 71 on the slider 7, thus causing the slider 7 to move to the right. At this time, the slider 7 moves away from the spool gear 11, which is the protection mechanism for the release of the spool gear, ensuring smoother thread release.

[0078] The structure of the slider 7 is as follows: Figure 21 As shown, the arc surface 72 at its upper left corner engages with the teeth of the spool gear 11. When in the released state, i.e., when the slider 7 moves to the right, the arc surface 72 disengages from the teeth of the spool gear 11, making the release smoother; when in the locked state, the contact between the arc surface 72 and the teeth of the spool gear 11 acts as a brake, thereby achieving locking.

[0079] like Figure 6 As shown, the push-pull rod assembly 13 includes a curved connecting rod 133 with a protruding proximal end 1331 to ensure that components mounted on the connecting rod 133 do not fall off from the proximal end. The three-point connecting rod assembly 135, the slider assembly 134, the slider spring 132, and the retaining washer 131 are then inserted sequentially. After all components are inserted, the distal end 1332 of the connecting rod 133 is flattened to ensure that components on the connecting rod 133 also do not fall off from the distal end. This completes the assembly. After assembly, as shown... Figure 7 As shown, the push-pull rod assembly 13 includes a series of components such as a connecting rod 133, a slider spring 132, a fixing washer 131, a proximal end 1331 with a protrusion, a distal end 1332, and a three-point connecting rod assembly 135. Figure 7The components shown, the three-point linkage assembly 135 further include a three-point linkage 1352, a pin 1351, and a long-hole rocker arm 13521. Figure 6 The label "Push-pull rod assembly 13" indicates that the push-pull rod assembly includes all the above-mentioned components.

[0080] In this embodiment, the proximal end and right end refer to the direction closer to the operator, while the distal end and left end refer to the direction away from the operator.

[0081] like Figure 6 As shown, the slider assembly 134 includes a slider 1341 and a third through hole 13411.

[0082] Figure 8 The state is the internal structural state of the handle when the sliding button 20 is slid to the locked position.

[0083] like Figure 8 As shown, at this time, the slider 1341 on the slider assembly 134 of the push-pull rod assembly 13 presses the clutch block pin 18 on the clutch block 17 to the right, causing the clutch block 17 to move towards the spool gear 11 with the bottom pin 15 as the axis. At the same time, the clutch block spring 16 is compressed. The arc notch 171 on the clutch block 17 moves away from the limiting reinforcing rib 61 of the handle cover 6. The elongated groove 172 on the clutch block 17 disengages from the cylindrical column 122 on the spool lock 12. Specifically, when the clutch block 17 is pressed to the right, i.e. moves to the right, since the movement is relative, i.e., the cylindrical column 122 moves to the left relative to the clutch block 17. The cylindrical column 122 moves from a state of adhering to the right side wall of the elongated groove 172 to the groove of the elongated groove 172, and disengages without contacting the wall of the groove.

[0084] The second ratchet 121 on the spool lock 12 engages with the first ratchet 111 of the spool gear 11 via the tension spring 10. The spool gear 11 cannot rotate, i.e., it is locked. The spool lock 12 is connected to the irregular protrusion 123 on the handle cover 6. The spool lock 12 can rotate around the irregular protrusion 123 to lock and release the gear 11.

[0085] At the same time, the slider spring 132 on the push-pull rod assembly 13 is no longer compressed, returns to its original length, and disengages from the slider assembly 134, and the push-pull rod assembly 13 returns to its initial state. That is, the push-pull rod assembly 13 no longer acts on the slider 7, and the slider 7 pushes to the left towards the spool gear 11 by the spring 8.

[0086] Both the slider 7 and the spring 8 are positioned between the handle intermediate body 9 and the handle top cover 6. The handle intermediate body 9 is connected to the handle top cover 6 by the handle screw 14. The handle intermediate body 9 provides a sliding track for the slider, as shown in the specific structure. Figure 22 As shown, the handle intermediate body 9 is provided with a handle protrusion 37 for connecting with the three-point linkage assembly 135, which can be fixed with adhesive.

[0087] like Figure 9 As shown, the first ratchet 111 on the spool gear has an asymmetrical structure, meaning the tip of the ratchet deflects counterclockwise. The second ratchet 121 on the spool lock corresponds to the first ratchet 111 on the spool gear, meaning the tip of the ratchet also deflects counterclockwise. This structure ensures that when the first ratchet 111 on the spool gear and the second ratchet 121 on the spool lock are engaged, the spool gear 11 can only rotate clockwise and not counterclockwise. This ensures unidirectional rotation of the spool gear 11 and provides an anti-reverse rotation function.

[0088] The spool is fixed to the spool gear 11, and the sewing thread is fixed to the spool. When the spool gear 11 rotates, it drives the spool to rotate, thus realizing the extension and retraction of the sewing thread. The specific implementation method is the same as that of patent CN204293210U, which can be referred to.

[0089] like Figure 10 As shown, the sliding button cover plate 3 has two perforated cylinders 31, which are directly opposite the two screw holes 62 on the handle cover 6. These are used to install the gasket 2000 and then connect and fix the sliding button cover plate 3 and the handle cover 6 using cover screws 19. The cavity formed by the sliding button cover plate 3 and the handle cover 6 contains a gasket spring 2001, a ball bearing 2002, a sliding button base 4, and a sliding button guide plate 23.

[0090] like Figure 12 As shown, the upper protrusion 231 of the sliding button guide plate 23 is used for connection with the sliding button 20, and instant adhesive or the like can be used. It is used to connect the sliding button guide plate 23 and the sliding button 20 into a fixed whole, and can slide along the Z-shaped groove 889 on the sliding button cover plate 3.

[0091] The Z-shaped groove described in this embodiment is not exactly Z-shaped, but rather... Figure 3 The double right-angle steering groove shown can, of course, be set into Z-shaped, long strip, or other shapes according to actual needs in practice, and all of them are within the protection scope of this application.

[0092] The bottom surface of the sliding button guide plate 23 has a long groove 232 into which the pin 5 passes. When the pin 5 is fixed, the sliding button guide plate 23 can slide. That is, when the sliding button 20 moves to the inflection point, the sliding button guide plate 23 can drive the sliding button 20 to complete the upward or downward reversal.

[0093] like Figure 13As shown, the upper surface of the sliding button base 4 has a rectangular groove 41 and a first through hole 42 extending to the lower surface. The groove 41 is used to accommodate the square protrusion 890 at the lower end of the sliding button guide plate 23; that is, the lower square protrusion 890 of the sliding button guide plate is connected to the groove 41. The upper protrusion 231 of the sliding button guide plate connects to the sliding button 20, allowing the sliding button guide plate 23 to slide along the groove 41 on the sliding button base 4. In other words, when the sliding button guide plate 23 drives the sliding button 20 to complete the upward or downward reversal, the groove 41 acts as a guide. The structure of the sliding button guide plate is as follows... Figure 23 As shown.

[0094] The connecting pin 5 passes through the first through hole 42, and (upward) the upper end face of the pin 5 passes through the long groove 232 on the sliding button guide plate 23, with the upper end face 233 of the bottom surface of the sliding button guide plate 23 flush with it; (downward) the pin 5 passes into the third through hole 13411 of the slider 1341. That is, the pin 5 effectively connects the sliding button guide plate 23 and the sliding button 20, the sliding button base 4 and the push-pull rod assembly 13, so that when the sliding button 20 moves to the left or right, it can complete the release and locking state of the spool gear 11 through the push-pull rod assembly 13.

[0095] like Figure 13 As shown, the sliding button base 4 has a countersunk hole 43 on its side. A washer spring 2001 and a ball bearing 2002 are sequentially placed into this hole, with the washer spring 2001 positioned towards the inner part of the countersunk hole 43, followed by the ball bearing 2002. When the sliding button 20 moves to the release position, the washer spring 2001 pushes the ball bearing 2002 into the first recess 63 of the handle cover 6, thus locking or fixing the sliding button 20 in the release position. Figure 11 As shown; when the sliding button 20 moves from the release position to the locked position, the ball 2002 will compress the washer spring 2001 and follow the movement until it reaches the locked position. The washer spring 2001 will push the ball 2002 into the second recess 64 of the handle cover 6, locking the sliding button 20 in the locked position.

[0096] The control handle described in this embodiment has a transport braking function. When the sliding button 20 of the tissue anchoring system is fixed in the release position in the factory state, the spool gear 11 is still fixed and cannot rotate freely.

[0097] like Figure 14 , Figure 15 , Figure 16 As shown, the thumb push rod 24 can move back and forth along the slide rail 261 of the handle lower cover 26. When the tissue anchoring system handle control device is in the factory state, the thumb push rod 24 is at the closest end, and the push button protrusion 251 on the handle push button 25 is pressed by the brake spring 275 and fixed in the first groove 262 of the handle lower cover 26.

[0098] like Figure 17 , 18 As shown, the crossbar 241 of the thumb pusher 24 presses against the transport brake 27, compressing the torsion spring 29, and causing the rubber rod 281 to adhere tightly to the first ratchet 111 of the spool gear 11. At this time, the spool gear 11 is fixed and cannot rotate, thus achieving the function of transport braking.

[0099] A rubber rod 281 is fixed within a blind hole 274 on the brake arc surface 273 of the brake 27, and can be glued together. The total length of the rubber rod 281 is greater than the depth of the blind hole 274. A second through hole 272 is located on the right side of the upper end face 271 of the brake 27, and a bushing 28 is positioned thereon. A torsion spring 29 is fitted onto the bushing, and two torsion feet are fixed to the brake 27 and the lower handle cover 26, respectively. A screw 30 passes through the torsion spring 29, the bushing 28, and the brake 27, and is fixed to the lower handle cover 26.

[0100] like Figure 19 , 20 As shown, when the transport brake is released, the thumb push rod 24 moves from the proximal end to the distal end. When the thumb push rod 24 moves to the distal end, the push button protrusion 251 on the handle push button 25 is pressed by the brake spring 275 and fixed in the second groove 263 of the handle lower cover 26.

[0101] The thumb pusher 24 moves forward, the crossbar 241 of the thumb pusher separates from the brake 27, the torsion spring 29 returns to its free state, and drives the rubber rod 281 on the brake 27 away from the first ratchet 111 of the spool gear 11. That is, the spool gear 11 is no longer constrained, the braking state is released, and it can rotate freely.

[0102] This product is used in the repair of mitral or tricuspid regurgitation annulus contracture. It uses percutaneous minimally invasive catheter intervention to implant tissue anchors into the patient's heart valve annulus to secure the tissue.

[0103] The specific operation or usage method of the handle control device described in this product, combined with the tissue anchor component, mainly includes the following steps:

[0104] 1) Through guidewire 2200 ( Figure 25 The tissue anchor component 2003 is guided through catheter 110 and inserted into the patient's heart to the side of the valve annulus where the tissue anchor component 2003 is intended to be implanted; wherein, the tissue anchor component is as follows: Figure 26 As shown, this is the tissue anchor component in patent CN204293210U;

[0105] 2) Lift the sliding button guide plate 23 on the handle control device 200 to unlock the handle push button in the first groove 262, and push the thumb push rod 24 until the sliding button guide plate 23 can be engaged in the second groove 263; at this time, the pre-loaded... Figure 24A portion of the tissue anchoring member 2003 of the catheter body tip 112 shown is pushed out of the catheter tip 112;

[0106] 3) Move the sliding button 20 from the release mark position to the lock mark position along the Z-shaped groove on the handle control device, and rotate the thumb wheel 113 on the handle control device 200 counterclockwise until the thumb wheel slips. At this time, the tissue anchor member 2003 that pushes out the tip 112 of the catheter body is folded at the tip side opening 114 of the catheter body 110.

[0107] 4) Retract the tissue anchor delivery catheter 110 until the folded tissue anchor component at the tip side opening 114 of the catheter body is close to the valve annulus tissue;

[0108] 5) Move the sliding button 20 from the locked position to the released position along the Z-shaped groove on the handle control device, and continue to retract the tissue anchor delivery catheter 110 until the catheter body tip 112 enters the other side of the valve annulus tissue. At the same time, ensure that all remaining tissue anchor components 2003 in the catheter body tip are released from the catheter tip side opening 114 to the outside of the catheter 100.

[0109] 6) Move the sliding button 20 from the release mark position to the lock mark position along the Z-shaped groove on the handle control device 200, and rotate the thumb wheel 113 on the handle control device counterclockwise until the remaining anchor piece released in step 5 is folded and anchored on the valve annulus together with the previously folded tissue anchor member 2003.

[0110] 7) Move the sliding button 20 from the locked position to the released position along the Z-shaped groove on the handle control device 200, and withdraw the tissue anchor delivery conduit 100 to complete the anchoring of the tissue anchor component on the valve annulus tissue.

Claims

1. A tissue anchoring system handle control device, characterized by, The device includes a handle upper cover (6), a handle lower cover (26), a sliding assembly (2), a push-pull rod assembly (13), a spool lock (12), a clutch block (17), and a spool gear (11), wherein, The sliding component (2) can selectively move up and down or move towards or away from the spool gear (11), thereby driving the movement of the push-pull rod assembly (13). The push-pull rod assembly (13) applies a thrust to the clutch block (17), causing the clutch block (17) to drive the spool lock (12) to lock the spool gear (11). The spool gear (11) being in a locked or released state can be displayed through the sliding component (2).

2. The apparatus of claim 1, wherein, The sliding assembly (2) includes a sliding button guide plate (23) and a sliding button base (4). The sliding button guide plate (23) is detachably fixed to the sliding button base (4). The sliding button guide plate (23) can move up and down along the through groove (41) on the sliding button base (4). The sliding button guide plate (23) can also drive the sliding button base (4) to move left and right. The push-pull rod assembly (13) includes a slider assembly (134), the upper end of which is detachably connected to the sliding button base (4), thereby ensuring that when the sliding button guide plate (23) moves left and right, it can drive the sliding button base (4) and the slider assembly (134) to move away from or towards the spool gear (11). The spool lock (12) is connected to the clutch block (17). When the slider assembly (134) moves toward the spool gear (11), the slider assembly (134) pushes the clutch block (17) and thus drives the spool lock (12) to lock the spool gear (11).

3. The apparatus of claim 2, wherein, The sliding assembly (2) also includes a sliding button (20) and a sliding button cover plate (3) fixed on the handle cover (6). The sliding button cover plate (3) is provided with a Z-shaped groove (889). The sliding button (20) is fixed on the sliding button cover plate (3) and can move along the Z-shaped groove. The bottom of the sliding button (20) is fixedly connected to the upper protrusion (231) of the sliding button guide plate (23). When the sliding button (20) moves, it can drive the sliding button guide plate (23) to move, thereby driving the sliding button base (4) and the slider assembly (134) to move. The lock or release state of the spool gear (11) can be displayed by the sliding button (20) in the sliding assembly (2).

4. The apparatus of claim 3, wherein, The upper surface of the sliding button cover (3) is provided with a locking mark (888) and a release mark (887). When the sliding button (20) moves up and down at the inflection point, it can drive the sliding button guide plate (23) to move up and down along the through groove (41) on the sliding button base (4). When the sliding button (20) is pushed to the right from the inflection point, the sliding button (20) drives the sliding button guide plate (23), the sliding button base (4) and the slider assembly (134) to move towards the spool gear (11). The slider assembly (134) pushes the clutch block (17), which in turn drives the spool lock (12) to lock the spool gear (11); when the slider button (20) is pushed to the left from the inflection point, the slider button (20) drives the slider assembly (134) to move away from the spool gear (11), and the clutch block (17) is pushed away from the spool gear (11) by the clutch block spring (16), and the clutch block (17) in turn drives the spool lock (12) to release the spool gear (11).

5. The apparatus of claim 3, wherein, The sliding button cover plate (3) has two perforated cylinders (31) facing the two screw holes (62) on the handle cover plate (6) for installing the gasket (2000) and then using the cover plate screws (19) to connect and fix the sliding button cover plate (3) and the handle cover plate (6). In the cavity formed by the sliding button cover plate (3) and the handle cover plate (6), there are gasket springs (2001), ball bearings (2002), sliding button base (4) and sliding button guide plate (23).

6. The apparatus of claim 2, wherein, The bottom surface of the sliding button guide plate (23) is provided with a long groove (232) into which the pin (5) passes. The long groove (232) is used to accommodate the pin (5). When the pin (5) is fixed, the sliding button guide plate (23) can still drive the sliding button (20) to complete the upward or downward reversal.

7. The apparatus of claim 6, wherein, The upper surface of the sliding button base (4) is provided with a rectangular through groove (41) and a first through hole (42) extending to the lower surface. The through groove (41) is used to place the square protrusion (890) at the lower end of the sliding button guide plate (23), so that the sliding button guide plate (23) can slide up or down along the through groove (41) on the sliding button base (4). The pin (5) passes through the first through hole (42), and the upper end of the pin (5) passes through the long groove on the sliding button guide plate (23) with its upper end facing upward. (232), flush with the upper surface (233) of the bottom surface of the sliding button guide plate (23); the pin (5) is inserted downward into the third through hole (13411) of the slider (1341), and the pin (5) effectively connects the sliding button guide plate (23) and the sliding button (20), the sliding button base (4) and the push-pull rod assembly (13), so that when the sliding button (20) moves to the left or right, the release and locking state of the spool gear (11) can be completed through the push-pull rod assembly (13).

8. The apparatus of claim 2, wherein, The sliding button base (4) has a countersunk hole (43) on its side. A washer spring (2001) and a ball bearing (2002) are placed in the countersunk hole (43) from the inside to the outside. When the sliding button (20) moves to the release position, the washer spring (2001) pushes the ball bearing (2002) into the first recess (63) of the handle cover (6), thus fixing the sliding button (20) in the release position. When the sliding button (20) moves from the release position to the locking position, the ball bearing (2002) compresses the washer spring (2001) and moves with it until it reaches the locking position. The washer spring (2001) pushes the ball bearing (2002) into the second recess (64) of the handle cover (6), thus locking the sliding button (20) in the locking position.

9. The apparatus of claim 2, wherein, The push-pull rod assembly (13) includes a slider assembly (134), a connecting rod (133), and a three-point connecting rod assembly (135). The upper end of the slider assembly (134) is detachably connected to the sliding button base (4), thereby ensuring that when the sliding button guide plate (23) moves left and right, it can drive the sliding button base (4) and the slider assembly (134) to move away from or closer to the spool gear (11). The far end of the connecting rod (133) passes through the slider assembly (134), and the near end is detachably connected to the three-point connecting rod assembly (135). The slider assembly (134) can drive the connecting rod (133) to move, and the connecting rod (133) drives the three-point connecting rod assembly (135) to move.

10. The apparatus of claim 2, wherein, The push-pull rod assembly (13) includes a slider assembly (134), a connecting rod (133), and a three-point connecting rod assembly (135). The connecting rod (133) has multiple bends and a protruding proximal end (1331) to ensure that the parts on the connecting rod (133) do not fall off from the proximal end. The three-point connecting rod assembly (135), the slider assembly (134), the slider spring (132), and the fixing washer (131) are inserted into the connecting rod (133) in sequence. After all the parts are inserted, the distal end (1332) of the connecting rod (133) is flattened to ensure that the parts on the connecting rod (133) also do not fall off from the distal end.

11. The apparatus of claim 2, wherein, The slider assembly (134) includes a slider (1341). When the slider (1341) moves away from the clutch block (17), the clutch block (17) is pushed away from the spool gear (11) by the clutch block spring (16) until the arc notch (171) on the clutch block (17) abuts against the limiting reinforcing rib (61) of the handle cover (6). The elongated groove (172) on the clutch block (17) drives the cylindrical column (122) on the spool lock (12), causing the second ratchet (121) on the spool lock to disengage from the spool gear (11). The first ratchet (111) releases the bobbin gear (11); at the same time, the slider spring (132) on the push-pull rod assembly (13) is compressed to the left, causing the connecting rod (133) to tend to move to the left. When the connecting rod (133) moves to the left, the three-point connecting rod assembly (135) uses the pin (1351) as the axis, and the long hole swing arm (13521) of the three-point connecting rod (1352) drives the slider pin (71) on the slider (7), thereby driving the slider (7) to move away from the bobbin gear (11), ensuring that the release of the sewing thread is smoother.

12. The apparatus of claim 2, wherein, The slider (1341) on the slider assembly (134) presses the clutch block pin (18) on the clutch block (17) to the right, causing the clutch block (17) to move towards the spool gear (11) with the bottom pin (15) as the axis; at the same time, the clutch block spring (16) is compressed, and the arc notch (171) on the clutch block (17) moves away from the limiting reinforcing rib (61) of the handle cover (6), and the elongated groove (172) on the clutch block (17) and the cylindrical column (122) on the spool lock (12) are connected. When disengaged, the second ratchet (121) on the spool lock (12) engages with the first ratchet (111) of the spool gear (11) under the pull of the tension spring (10), so that the spool gear (11) cannot rotate, thus completing the locking state; at the same time, the slider spring (132) on the push-pull rod assembly (13) is no longer compressed, returns to its original length, and disengages from the slider assembly (134). The push-pull rod assembly (13) no longer acts on the slider (7), and the slider (7) pushes to the left towards the spool gear (11) under the push of the spring (8).

13. The apparatus of claim 2, wherein, The device also includes a handle intermediate body (9) and a slider (7). The handle intermediate body (9) is connected to the handle top cover (6) by a handle screw (14). The slider (7) and the spring (8) are both placed between the handle intermediate body (9) and the handle top cover (6). The slider (7) is provided with an arc surface (72). The arc surface (72) is in contact with the teeth of the spool gear (11). When it is in the released state, the slider (7) moves to the right, and the arc surface (72) disengages from the teeth of the spool gear (11), making the release smoother. When it is in the locked state, the arc surface (72) contacts the teeth of the spool gear (11) to play a braking role, thereby realizing the locking of the device.

14. The apparatus of claim 13, wherein, The spool gear (11) can only rotate in one direction.

15. The apparatus of claim 14, wherein, The first ratchet (111) on the spool gear is an asymmetrical structure, with the tip of the first ratchet deflected counterclockwise. The tooth profile of the second ratchet (121) on the spool lock corresponds to that of the first ratchet (111) on the spool gear, and the tip of the second ratchet (121) on the spool lock is also deflected counterclockwise. This ensures that when the first ratchet (111) on the spool gear and the second ratchet (121) on the spool lock mesh, the spool gear (11) can only rotate clockwise and not counterclockwise.

16. The apparatus of claim 2, wherein, The device includes a transport braking function achieved by a thumb push rod (24), a brake (27) and a rubber rod (281).

17. The apparatus of claim 16, wherein, The thumb push rod (24) moves back and forth along the slide rail (261) of the handle cover (26). When the tissue anchoring system is in the factory state, the thumb push rod (24) is at the closest end. The push button protrusion (251) on the handle push button (25) is pushed by the brake spring (275). The cross bar (241) of the thumb push rod (24) fixed in the first groove (262) of the handle cover (26) will squeeze the transport brake (27), so that the torsion spring (29) is compressed. The rubber rod (281) is tightly attached to the first ratchet (111) of the spool gear (11), so that the spool gear (11) is fixed and cannot rotate, which plays the role of transport braking.

18. The apparatus of claim 16, wherein, The rubber rod (281) is fixed in the blind hole (274) on the brake arc surface (273) of the brake (27), and can be selectively glued. The total length of the rubber rod (281) is greater than the depth of the blind hole (274). There is a second through hole (272) on the right side of the upper end face (271) of the brake (27). The bushing (28) is located on the through hole. The torsion spring (29) is sleeved on the bushing. The two torsion feet of the torsion spring (29) are fixed to the brake (27) and the lower cover of the handle (26) respectively. The screw (30) passes through the torsion spring (29), the bushing (28), and the brake (27) and is fixed to the lower cover of the handle (26).

19. The apparatus of claim 16, wherein, When the transport brake is released, the thumb push rod (24) moves from the proximal end to the distal end. When the thumb push rod (24) moves to the farthest end, the push button protrusion (251) on the handle push button (25) is pushed by the brake spring (275) and fixed in the second groove (263) of the handle lower cover (26). The thumb push rod (24) moves forward, the cross bar (241) of the thumb push rod separates from the brake (27), the torsion spring (29) returns to its free state, and drives the rubber rod (281) on the brake (27) away from the first ratchet (111) of the spool gear (11). That is, the spool gear (11) is no longer constrained, the braking state is released, and it can rotate freely.

Images