A device for deploying a filler in a puncture
By integrating the actuator with guide pins, pushing components, and recovery components, the problem of complex structure and high cost of puncture hole closing devices is solved, achieving the effect of simplified operation and reduced production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG BELONGS TO A MEDICAL INSTR
- Filing Date
- 2022-11-02
- Publication Date
- 2026-04-14
AI Technical Summary
Existing puncture hole closure devices are complex in structure, have high production costs, are not ergonomically designed, and pose a risk of hematoma.
An integrated actuator is provided, which integrates a guide pin, a pushing component, and a retraction component. The deployment of filler and the retraction of anchor are achieved through operation of different sections of the linkage, and the operation is simplified to a single button.
This simplifies the procedures for vascular occlusion and anchor retrieval, reducing production costs and improving ease of operation and safety.
Smart Images

Figure CN115530896B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and more specifically to a device for deploying fillers in puncture holes. Background Technology
[0002] Percutaneous catheterization is primarily used for various cardiovascular angiography and transvascular interventional procedures requiring percutaneous catheter insertion. After the diagnostic or therapeutic procedure, the puncture site can be closed using various mechanical or biological solutions, such as applying external pressure (e.g., manually and / or using sandbags), tightening, suturing, and / or delivering metal implants, plugs, or sealants. However, some of these closure procedures are time-consuming, expensive, and uncomfortable. Additionally, some of these procedures can increase the risk of hematoma due to pre-hemostasis bleeding.
[0003] When closing a puncture site using metal implants, plugs, sealants, or other suitable sealing components, healthcare professionals can use vascular closure devices to position and deploy the seal. However, existing closure devices have two buttons arranged in a front-to-back pattern on the handle. The first button is ergonomic, while the second is not and does not meet the requirements for diverse aesthetic designs. Furthermore, the complex structure of the two buttons hinders cost reduction. Summary of the Invention
[0004] The purpose of this invention is to provide a device for deploying filler in puncture holes, thereby solving the problems existing in the prior art, with a simple structure and low production cost.
[0005] To achieve the above objectives, the present invention provides the following solution:
[0006] This invention provides an apparatus for deploying filler material in a puncture hole. The actuator includes a connecting rod, a guide pin for deploying the filler material, a pushing member, and a retraction member for retrieving the anchor. The guide pin and the pushing member are connected to the front section of the connecting rod, and the retraction member is connected to the rear section of the connecting rod. Pressing the front section of the connecting rod causes the guide pin to depress and drive the retraction slider to retract backward, and causes the pushing member to depress and drive the pushing slider forward. Pressing the rear section of the connecting rod causes the retraction member to depress and retract the anchor. The actuator integrates the functions of deploying filler material and retrieving anchor material into one unit, and the guide pin and pushing member for deploying filler material, as well as the retraction member for retrieving anchor material, can be integrally arranged on the actuator.
[0007] Preferably, the actuator has a trigger locking state, a filler deployment state, and an anchor retraction state.
[0008] Preferably, the actuator further includes an elastic limiting member, one end of which is connected to the rear section of the connecting rod. A first limiting post is provided on the housing corresponding to the free end of the elastic limiting member. The elastic limiting member can abut against the first limiting post and prevent the actuator from rotating, so that the actuator is in the trigger-locked state.
[0009] Preferably, the side wall of the recovery slider is provided with an inclined guide rail, and the side wall of the inner shell is provided with an arc-shaped guide rail. From top to bottom, the inclined guide rail gradually extends towards the rear end, pressing down the front end of the actuator to release the trigger locking state and put the actuator into the state of deploying filler. The two ends of the guide pin can enter the inclined guide rail and the arc-shaped guide rail respectively, and drive the recovery slider to move towards the rear end, so that the recovery slider pulls the filler sleeve backward and exposes the filler.
[0010] Preferably, the rear end of the recycling slider is provided with an unlocking block, the push slider is fixed with a locking block, and the inner shell is provided with an elastic mechanism. When the actuator is in the triggered locking state, the locking block is locked at the elastic mechanism. When the front end of the actuator is pressed and the recycling slider is retracted, the unlocking block can move to act on the elastic mechanism and unlock the locking block. Pressing down the front end of the actuator can cause the push member to drive the push slider forward until the guide pin is locked in the limiting hole at the lower end of the arc-shaped guide rail, so that the push slider pulls the filler support push tube forward to push the filler until the deployment is completed.
[0011] Preferably, the elastic mechanism includes a horizontal segment and an arc segment fixedly connected in sequence. One end of the horizontal segment is fixed to the inner shell, and the other end of the horizontal segment is fixed to one end of the arc segment. The middle part of the arc segment bends upward, and the other end of the arc segment extends towards the interior of the rear end of the inner shell. A first locking hole is also provided at the end of the arc segment away from the horizontal segment, and a second locking hole is provided at the upper end of the middle part of the arc segment. When the actuator is in the triggered locking state, the locking block extends into the first locking hole. When the front end of the actuator is pressed, the retractable slider can drive the unlocking block to move from the horizontal segment to the arc segment, and the unlocking block pushes the arc segment to the first locking hole to disengage from the locking block, thereby unlocking the pushing slider. When the actuator pushes the pushing slider to the point where the unlocking block is below the arc segment, the elastic mechanism resets and locks the locking block in the second locking hole.
[0012] Preferably, the upper end of the push slider is provided with a push ramp, and the height of the push ramp gradually decreases from the front end to the rear end. The push member is located above the push ramp and can cooperate with the push ramp. When the front end of the actuator is pressed, the push slider is pushed to move to the front end. After the push slider moves into place, the guide pin can be locked by the locking element, and the positions of the push slider and the retraction slider are fixed.
[0013] Preferably, the locking element is a limiting spring, the upper end of which is fixed inside the arc-shaped guide rail, and the lower end of which extends toward the lower end of the arc-shaped guide rail but does not contact it. The lower end of the limiting spring has a protrusion, and the guide pin is located on one side of the limiting spring. When the guide pin moves to contact the protrusion, it can squeeze the protrusion. After the actuator front end drives the push slider to move into place, the guide pin is located below the protrusion, and the limiting spring can drive the protrusion to spring back to limit the guide pin below the protrusion.
[0014] Preferably, the rear section of the connecting rod is provided with a guide rail, and the outer shell is provided with a second limiting post. When the rear end of the actuator is pressed, the actuator is in the retracted anchor state, and the second limiting post of the outer shell can slide along the guide rail. The retraction component can press down the core wire and cause the core wire to pull the anchor backward to be retracted into the filler support push tube.
[0015] Preferably, the rear end of the actuator can contact the upper end of the support limiting member, and the support limiting member is installed on the inner shell and used to connect the rear end of the piston rod of the anchor control part. After the front end of the actuator is pressed and the anchor retracts, the support limiting member can move under the drive of the piston rod to not contact the rear end of the actuator.
[0016] The present invention achieves the following technical effects compared to the prior art:
[0017] The present invention provides an apparatus for deploying filler in a puncture site. The actuator includes a connecting rod, a guide pin for deploying the filler, a pushing member, and a retrieval member for retracting the anchor. The guide pin and the pushing member are connected to the front section of the connecting rod, and the retrieval member is connected to the rear section of the connecting rod. Pressing the front section of the connecting rod depresses the guide pin and drives the retrieval slider to retract backward. During retrieval, the retrieval slider pulls the filler sleeve backward to expose the filler, thereby facilitating vascular occlusion through the filler. Pressing the front section of the connecting rod also depresses the pushing member and pushes the pushing slider forward. During the pushing process of the slider, the filler support push tube is driven to push out the filler, thereby moving, compressing and sealing the filler towards the vascular puncture site, thus deploying the filler. When the rear section of the connecting rod is pressed, the retrieval component can press down the core wire, causing the originally straight core wire to bend and contract, thereby pulling the anchor back to the rear end until it passes through the filler and is retrieved to the front end or inside the filler support push tube, thus retrieving the anchor. Compared with the prior art, the present invention can achieve the above operations with only one integrated actuator, which is simple in structure and reduces production costs compared with the existing two-button structure. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the actuator in the triggered and locked state in the device for deploying filler in a puncture hole provided by the present invention.
[0020] Figure 2 This is a schematic diagram of the actuator being released from the trigger lock state in the device for deploying filler in a puncture hole provided by the present invention;
[0021] Figure 3 This is a schematic diagram of the actuator in the device for deploying filler in a puncture hole provided by the present invention when the actuator is in the state of deploying filler.
[0022] Figure 4 This is a schematic diagram of the actuator contacting the core wire in the device for deploying filler in a puncture hole provided by the present invention;
[0023] Figure 5 This is a schematic diagram of the actuator in the retracted anchor state in the device for deploying filler in puncture holes provided by the present invention.
[0024] Figure 6This is a schematic diagram of the actuator in the device for deploying filler in a puncture hole provided by the present invention;
[0025] Figure 7 yes Figure 6 The front view;
[0026] Figure 8 yes Figure 6 Rear view;
[0027] Figure 9 This is a schematic diagram of the device for deploying filler in a puncture hole provided by the present invention with the actuator, one outer shell and one inner shell removed;
[0028] Figure 10 yes Figure 9 A diagram from another angle;
[0029] In the diagram: 100 - Device for deploying filler in puncture holes; 1 - Housing; 11 - First limiting post of housing; 12 - Second limiting post of housing; 2 - Inner shell; 21 - Arc-shaped guide rail; 22 - Limiting hole; 23 - Protrusion; 24 - Elastic mechanism; 25 - Locking element; 3 - Actuator; 31 - Linkage rod; 32 - Rear section; 33 - Front section; 34 - Pushing component; 35 - Guide pin; 36 - Recovering component; 37 - Elastic limiting component; 38 - Guide rail; 4 - Recovering slider; 41 - Inclined guide rail; 42 - Guide slider; 43 - Guide block; 5 - Push slider; 51 - Locking block; 6 - Support limiting component; 7 - Anchor control section; 8 - Piston rod; 9 - Core wire; 91 - Filler sleeve; 92 - Filler; 93 - Anchor; 94 - Guide wire; 10 - Tension alignment indicator. Detailed Implementation
[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0031] The purpose of this invention is to provide a device for deploying filler in puncture sites, thereby solving the technical problems of existing sealant delivery devices that require two buttons to achieve vascular occlusion, resulting in complex structures and high costs.
[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0033] like Figures 1-10As shown, this embodiment provides a device 100 for deploying filler in a puncture hole, comprising at least a housing 1, an inner housing 2, a retrieval slider 4, a pushing slider 5, a support limiting member 6, and an actuator 3. The housing 1 is movably mounted outside the inner housing 2, providing overall protection. The retrieval slider 4 and the pushing slider 5 are slidably connected inside the inner housing 2. The actuator 3 is installed at the upper end of the inner housing 2 and can extend out of the housing 1 for easy operation. The actuator 3 includes a connecting rod 31, a guide pin 35 for deploying filler 92, a pushing member 34, and a retrieval member 36 for retrieving the anchor 93. The guide pin 35 and the pushing member 34 are connected to the front section 33 of the connecting rod 31, and the retrieval member 36 is connected to the rear section 32 of the connecting rod 31. Pressing the front section 33 of the connecting rod 31 causes the guide pin 35 to press down and drive the retrieval slider 4 to retract backward, so that the retrieval slider 4 pulls the filler sleeve 91 backward during the retrieval process to expose the filler 92, thereby facilitating... The vascular occlusion is achieved by using filler 92. When the front section 33 of the connecting rod 31 is pressed down, the pushing member 34 is pressed down and the pushing slider 5 is pushed forward. During the pushing of the pushing slider 5, the filler support pushing tube pushes out the filler 92, thereby moving, compressing and occluding the filler 92 towards the vascular puncture site, thus deploying the filler 92. When the rear section 32 of the connecting rod 31 is pressed down, the retrieval member 36 presses down the core wire 9, causing the originally straight core wire 9 to bend and contract, thereby pulling the anchor 93 back to the rear end until it passes through the filler 92 and is retrieved to the front end or inside the filler support pushing tube, thus retrieving the anchor 93. Compared with the prior art, this embodiment can achieve the above operations with only one integrated actuator 3, which is simple in structure. Compared with the existing two-button structure, the integrated actuator 3 integrates the two functions of deploying the filler and retrieving the anchor into one, making the structure more compact and simple, thereby reducing production costs.
[0034] Specifically, the device 100 for deploying filler in a puncture hole provided in this embodiment further includes an anchoring control unit 7, a guide wire 94, a fluid conduit, a filler sleeve 91, a filler support and push tube, an anchor 93, and a filler 92. The guide wire 94, fluid conduit, filler support and push tube, and filler sleeve 91 are coaxially arranged from the inside out and are movable relative to each other. The guide wire 94 and fluid conduit form a core wire 9. The anchoring control unit 7 includes a piston rod 8. The rear end of the guide wire 94 is connected to the front end of the piston rod 8. The rear end of the fluid conduit is connected to the front end of the anchoring control unit 7. The front end of the anchor 93 is connected to the front end of the guide wire 94 and the front end of the fluid conduit. The filler 92 is movably disposed at the front end of the filler support and push tube, and the anchor 93 can freely pass through the filler 92. The extension and retraction state of the anchor 93 is controlled by introducing or discharging fluid into the anchoring control unit 7.
[0035] The support limiting component 6 is connected to the rear end of the piston rod 8, the recovery slider 4 is connected to the filler sleeve 91, and the push slider 5 is connected to the filler support push tube.
[0036] Actuator 3 has a trigger lock state, a filler deployment state, and an anchor retraction state.
[0037] When fluid is introduced into the anchoring control unit 7 to release the anchoring 93, or when the filler 92 is placed in the puncture hole, the actuator 3 is in a triggered locking state to prevent the actuator 3 from being activated during this process. The actuator 3 also includes an elastic limiting member 37, one end of which is connected to the rear section 32 of the connecting rod 31. A first limiting post 11 is provided on the outer shell 1 at the position corresponding to the free end of the elastic limiting member 37. The elastic limiting member 37 can abut against the first limiting post 11 and prevent the rear end of the actuator 3 from rotating around the guide pin 35, so that the actuator 3 is in a triggered locking state, avoiding the failure of the real-time tension alignment indicator 10 between the inner shell 2 and the outer shell 1, which would increase the risk of the filler 92 being released into the blood vessel. It should be noted that in this embodiment, "front" refers to the direction close to the blood vessel puncture, and "rear" refers to the direction away from the blood vessel puncture, that is, the user's operating direction.
[0038] An inclined guide rail 41 is provided on the side wall of the recovery slider 4, and an arc-shaped guide rail 21 is provided on the side wall of the inner shell 2. The arc-shaped direction of the arc-shaped guide rail 21 is consistent with the direction of the guide pin 35 when the front end of the actuator 3 is pressed down. Thus, the guide pin 35 can be guided by the arc-shaped guide rail 21 to achieve stable pressing of the front end of the actuator 3. From top to bottom, the inclined guide rail 41 gradually extends to the rear end. When the anchor 93 is in the released state, it pushes the slider 5 into the locked state. After the pressure is applied to the front end of the actuator 3 until the elastic limiting member 37 is released, it continues to act on the front end of the actuator 3. The two ends of the guide pin 35 can enter the inclined guide rail 41 and the arc-shaped guide rail 21 respectively. As the guide pin 35 is pressed down, the guide pin 35 can give the recovery slider 4 a horizontal component force in cooperation with the inclined guide rail 41. Thus, the recovery slider 4 is driven to move backward by the guide pin 35, so that the recovery slider 4 pulls the filling sleeve 91 backward and exposes the filling 92.
[0039] Meanwhile, in the initial state, the front end of the actuator 3 is limited by the upper end of the inner shell 2 to prevent the front end of the actuator 3 from being pressed before the anchor 93 expands. When the piston rod 8 of the anchor control part 7 controls the core wire 9 to pull back, it drives the support limiting member 6 to move backward. The support limiting member 6 drives the inner shell 2 to move backward. At this time, the arc-shaped guide rail 21 is located at the lower end of the guide pin 35, and the support limiting member 6 contacts the rear end of the actuator 3 and limits it. The front end of the actuator 3 can be pressed down. Preferably, the recovery slider 4 is also provided with a guide slider 42. A long strip groove is also provided on the inner shell 2 at the position corresponding to the guide slider 42. When the recovery slider 4 moves, the guide slider 42 can move in the long strip groove to achieve limiting and guiding.
[0040] The rear end of the retrieval slider 4 is equipped with an unlocking block, and the push slider 5 is fixed with a locking block 51. The inner shell 2 is equipped with an elastic mechanism 24. When the actuator 3 is in the triggered locking state, the locking block 51 is locked at the elastic mechanism 24. When the front end of the actuator 3 is pressed and the retrieval slider 4 is retracted, the unlocking block can move to act on the elastic mechanism 24 and unlock the locking block 51, so that the actuator 3 can act on the push slider 5. At this time, pressing down the front end of the actuator 3 can cause the push member 34 to drive the push slider 5 forward. As the push slider 5 moves, it can pull the filler support push tube forward to push the filler 92 until the deployment is completed. After the front end of the actuator 3 moves into place, it can lock the guide pin 35 into the limiting hole 22 at the lower end of the arc-shaped guide rail 21, thereby fixing the positions of the push slider 5 and the retrieval slider 4, moving the filler 92 towards the vascular puncture site for compression and sealing, thus completing the deployment of the filler 92. This state is called the filler deployment state.
[0041] The elastic mechanism 24 includes a horizontal segment and an arc segment fixedly connected in sequence. One end of the horizontal segment is fixed to the inner shell 2, and the other end of the horizontal segment is fixed to one end of the arc segment. The middle of the arc segment bends upward, and the other end of the arc segment extends towards the interior of the rear end of the inner shell 2. A first locking hole is provided at the end of the arc segment away from the horizontal segment, and a second locking hole is provided at the upper end of the middle of the arc segment. When the actuator 3 is in the triggered locking state, the locking block 51 extends into the first locking hole and is limited by the first locking hole, so that the position of the push slider 5 is fixed. Pressing the front end of the actuator 3 and retracting the slider 4 can drive the unlocking block to move from the horizontal segment to the arc segment. The slider 5 can be moved away from the inner shell 2 and pushed in an arc-shaped direction until the locking block 51 disengages from the first locking hole to unlock the slider 5. The actuator 3 can act on the slider 5 and drive the unlocking block forward. When the slider 5 moves to the point where the unlocking block is below the arc-shaped section, the unlocking block no longer applies force to the arc-shaped section. At this time, the slider 5 moves into place, the elastic mechanism 24 resets and locks the locking block 51 in the second locking hole, thus fixing the position of the slider 5. More preferably, a guide hole is formed below the arc-shaped section, and a guide block 43 is below the unlocking block. When the slider 4 moves, the guide block 43 can slide in the guide hole, which plays a role in limiting and guiding.
[0042] The upper end of the push slider 5 is provided with a push ramp. The height of the push ramp gradually decreases from the front end to the rear end. The push member 34 is located above the push ramp and can cooperate with the push ramp. When the front end of the actuator 3 is pressed and the push slider 5 is in the unlocked state, it contacts and pushes the push slider 5 to move to the front end. During this process, the push member 34 can give the push slider 5 a horizontal separation so as to realize the horizontal movement of the push slider 5. After the push slider 5 moves to the position, the guide pin 35 can be locked by the locking element 25 to fix the position of the push slider 5 and the retraction slider 4.
[0043] The locking element 25 is a limiting spring. The upper end of the limiting spring is fixed inside the arc-shaped guide rail 21, and there are gaps between both sides of the limiting spring and the inner wall of the arc-shaped guide rail 21. One gap is used for the guide pin 35 to pass through, and the other gap is used for the deformation of the limiting spring. The lower end of the limiting spring extends towards the lower end of the arc-shaped guide rail 21 but does not contact the lower end of the arc-shaped guide rail 21. The lower end of the limiting spring is provided with a protrusion 23. The guide pin 35 is located on one side of the limiting spring, and the protrusion 23 is located on the guide pin 35. When the guide pin 35 moves to the side of the protrusion 23, it can squeeze the protrusion 23 and cause the limiting spring to move and deform away from the protrusion 23 so that the guide pin 35 can pass through. After the front end of the actuator 3 drives the push slider 5 to move into place, the guide pin 35 is located below the protrusion 23 and no longer applies force to the protrusion 23. This causes the limiting spring to rebound, so as to limit the guide pin 35 to be located below the protrusion 23, thereby fixing the front end of the actuator 3, the push slider 5 and the retractable slider 4.
[0044] The support limiting member 6 is a frame type, and the support limiting member 6 has a support limiting block fixed at the position of the two side walls of the corresponding actuator 3 rear end. The lower end of the two side walls of the actuator 3 rear end can contact the upper end of the support limiting block to limit the actuator 3 rear end. When the anchor 93 retracts, the support limiting member 6 can move under the drive of the piston rod 8 until the support limiting block does not contact the two side walls of the actuator 3 rear end, so that the actuator 3 rear end can be pressed down. The recovery member 36 is located inside the support limiting member 6. When the actuator 3 rear end is pressed down, the recovery member 36 can press down the core wire 9.
[0045] The rear section 32 of the connecting rod 31 is provided with a guide rail 38, and the outer shell 1 is provided with a second limiting post 12. When the rear end of the actuator 3 is pressed, the actuator 3 is in the state of retracting the anchor, and the second limiting post 12 of the outer shell can slide along the guide rail 38. The retraction component 36 can press down the core wire 9 and cause the core wire 9 to pull the anchor 93 backward to be retracted into the filler support push tube. After the filler 92 is deployed and the anchor 93 is retracted to its conveying size state by the fluid discharged through the anchor control unit 7, pressure is applied to the rear end of the actuator 3, causing the actuator 3 to rotate about the guide pin 35. At this time, the guide rail 38 slides with the second limiting post 12 of the outer shell, preventing the inner shell 2 from sliding relative to the outer shell 1, and maintaining the position of the inner shell 2, the recovery slider 4, and the push slider relative to the outer shell 1 unchanged. The recovery component 36 can move to contact the core wire 9 under the drive of the actuator 3, continue to move and push the core wire 9, causing the originally straight core wire 9 to bend and retract, thereby pulling the anchor 93 back to the rear end. Finally, the anchor 93 passes through the filler 92 and is retracted to the front end of the filler support push tube or into the filler support push tube. The rear end of the actuator 3 stops moving, completing the action of retracting the anchor 93. This state is called the anchor retraction state.
[0046] In this embodiment, the filler can be one or a combination of hemostatic gel, vascular sealant, and puncture site occlusion agent.
[0047] Anchor 93 has expansion and sealing functions, such as a balloon.
[0048] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be construed as a limitation of the present invention.
Claims
1. A device for deploying a filler in a punctured hole, comprising at least a housing, an inner shell, a recovery slider, a pushing slider, a supporting limiting piece and an actuator, characterized in that: The actuator includes a connecting rod, a guide pin for deploying filler and a pushing member, and a retraction member for retrieving the anchor. The guide pin and the pushing member are connected to the front section of the connecting rod, and the retraction member is connected to the rear section of the connecting rod. Pressing the front section of the connecting rod causes the guide pin to depress and drive the retraction slider to retract backward, and causes the pushing member to depress and drive the pushing slider forward. Pressing the rear section of the connecting rod causes the retraction member to depress and retract the anchor.
2. The apparatus for deploying filler in a puncture hole according to claim 1, characterized in that: The actuator has a trigger lock state, a filler deployment state, and an anchor retraction state.
3. The apparatus for deploying filler in a puncture hole according to claim 2, characterized in that: The actuator further includes an elastic limiting member, one end of which is connected to the rear section of the connecting rod. A first limiting post is provided on the housing corresponding to the free end of the elastic limiting member. The elastic limiting member can abut against the first limiting post and prevent the actuator from rotating, so that the actuator is in the trigger-locked state.
4. The apparatus for deploying filler in a puncture hole according to claim 2, characterized in that: The side wall of the recovery slider is provided with an inclined guide rail, and the side wall of the inner shell is provided with an arc-shaped guide rail. From top to bottom, the inclined guide rail gradually extends towards the rear end, pressing down the front end of the actuator to release the trigger locking state and put the actuator into the state of deploying filler. The two ends of the guide pin can enter the inclined guide rail and the arc-shaped guide rail respectively, and drive the recovery slider to move towards the rear end, so that the recovery slider pulls the filler sleeve backward and exposes the filler.
5. The apparatus for deploying filler in a puncture hole according to claim 4, characterized in that: The rear end of the recycling slider is provided with an unlocking block, the push slider is fixed with a locking block, and the inner shell is provided with an elastic mechanism. When the actuator is in the triggered locking state, the locking block is locked at the elastic mechanism. When the front end of the actuator is pressed and the recycling slider is retracted, the unlocking block can move to act on the elastic mechanism and make the elastic mechanism unlock the locking block. Pressing down the front end of the actuator can cause the push member to drive the push slider forward until the guide pin is locked in the limiting hole at the lower end of the arc-shaped guide rail, so that the push slider pulls the filler support push tube forward to push the filler until the deployment is completed.
6. The apparatus for deploying filler in a puncture hole according to claim 5, characterized in that: The elastic mechanism includes a horizontal segment and an arc segment fixedly connected in sequence. One end of the horizontal segment is fixed to the inner shell, and the other end of the horizontal segment is fixed to one end of the arc segment. The middle part of the arc segment bends upward, and the other end of the arc segment extends towards the interior of the rear end of the inner shell. A first locking hole is also provided at the end of the arc segment away from the horizontal segment, and a second locking hole is provided at the upper end of the middle part of the arc segment. When the actuator is in the triggered locking state, the locking block extends into the first locking hole. When the front end of the actuator is pressed, the retractable slider can drive the unlocking block to move from the horizontal segment to the arc segment, and the unlocking block pushes the arc segment to the first locking hole to disengage from the locking block, thereby unlocking the pushing slider. When the actuator pushes the pushing slider to the point where the unlocking block is below the arc segment, the elastic mechanism resets and locks the locking block in the second locking hole.
7. The apparatus for deploying filler in a puncture hole according to claim 4, characterized in that: The upper end of the push slider is provided with a push ramp. The height of the push ramp gradually decreases from the front end to the rear end. The push member is located above the push ramp and can cooperate with the push ramp. When the front end of the actuator is pressed, the push slider is pushed to move to the front end. After the push slider moves into place, the guide pin can be locked by the locking element to fix the position of the push slider and the retraction slider.
8. The apparatus for deploying filler in a puncture hole according to claim 7, characterized in that: The locking element is a limiting spring. The upper end of the limiting spring is fixed inside the arc-shaped guide rail, and the lower end of the limiting spring extends towards the lower end of the arc-shaped guide rail but does not contact the lower end of the arc-shaped guide rail. The lower end of the limiting spring has a protrusion. The guide pin is located on one side of the limiting spring. When the guide pin moves to contact the protrusion, it can squeeze the protrusion. After the front end of the actuator drives the push slider to move into place, the guide pin is located below the protrusion. The limiting spring can drive the protrusion to spring back to limit the guide pin to be located below the protrusion.
9. The apparatus for deploying filler in a puncture hole according to claim 2, characterized in that: The rear section of the connecting rod is provided with a guide rail, and the outer shell is provided with a second limiting post. When the rear end of the actuator is pressed, the actuator is in the retracted anchor state, and the second limiting post of the outer shell can slide along the guide rail. The retraction component can press down the core wire and cause the core wire to pull the anchor backward to be retracted into the filler support push tube.
10. The apparatus for deploying filler in a puncture hole according to claim 1, characterized in that: The rear end of the actuator can contact the upper end of the support limiting member, and the support limiting member is installed on the inner shell and used to connect the rear end of the piston rod of the anchor control part. After the front end of the actuator is pressed and the anchor retracts, the support limiting member can move under the drive of the piston rod to not contact the rear end of the actuator.
Citation Information
Patent Citations
Device for deploying filler in puncture hole
CN219048645U