Control handle for auricle clip conveying device

Abstract

The utility model discloses a control handle for an auricular appendage clip conveying device, which comprises an operating handle, the front end of the operating handle is a conveying rod, and the conveying rod is hollow to form a channel; the control piece is movably mounted in the operating handle, and part of the control piece is exposed; the thread passing device is mounted in the operating handle, and the thread passing device is provided with a thread passing channel; the rear ends of the control pull wires are connected with the control piece, and after the control pull wires penetrate through the wire passing device, the front ends of the control pull wires extend towards the front end of the operating handle through the channel. The operation precision is higher, and the safety and the effectiveness of an operation can be improved.

Description

Technical Field

[0001] The utility model belongs to the field of medical instruments, and in particular relates to a control handle for an atrial appendage clamp delivery device. Background Art

[0002] Atrial fibrillation is the most common arrhythmia, with symptoms of irregular heart beats. Non-valvular atrial fibrillation is a common type of atrial fibrillation.

[0003] There are 33.5 million patients with atrial fibrillation worldwide, and about 8 million of them in my country. The risk of stroke in patients with atrial fibrillation is very high. In China, stroke is an important cause of death, and stroke caused by atrial fibrillation usually has more severe clinical manifestations, higher mortality, and is more likely to recur.

[0004] There are currently three main approaches to preventing stroke in patients with atrial fibrillation:

[0005] 1. Anticoagulant drug therapy: Existing drug therapy has a certain risk of bleeding and requires frequent monitoring. It has many contraindications and side effects, and its clinical application is relatively difficult.

[0006] 2. Surgical removal of the left atrial appendage. This method has a low rate of complete closure of the left atrial appendage. Previous studies have shown that the success rate of complete removal of the left atrial appendage is up to about 80%;

[0007] 3. Left atrial appendage closure, which is divided into percutaneous interventional left atrial appendage closure and cardiac surgery or minimally invasive surgery to ligate the atrial appendage. Percutaneous interventional left atrial appendage closure products, such as percutaneous catheter left atrial appendage occluder, have not yet been widely used in clinical practice due to the complexity of the operation, high risk, and the need to verify the safety and effectiveness of this method.

[0008] Currently, cardiac surgery or minimally invasive surgery to ligate the atrial appendage is a widely used treatment method on the market. However, due to its structural limitations, the operation of the existing atrial appendage clamp delivery device is difficult to control and has high risks. Its safety and effectiveness remain to be verified. Summary of the invention

[0009] The purpose of the utility model is to provide a control handle for an atrial appendage clamp delivery device. The utility model has higher operating accuracy and is beneficial to improving the safety and effectiveness of surgery.

[0010] The technical solution is as follows:

[0011] A control handle for an atrial appendage clamp delivery device, comprising,

[0012] A manipulation handle, the front end of which is a delivery rod, and the delivery rod is hollow to form a channel;

[0013] A control member, which is movably mounted in the operating handle and partially exposed;

[0014] A wire passing device, which is installed in the operating handle and has a wire passing channel;

[0015] At least two control pull wires, the rear ends of which are connected to the control member, and after passing through the wire passer, the front ends of which extend to the front end of the operating handle through the channel.

[0016] In one embodiment,

[0017] The control component includes at least two wire wheels, which are movably mounted on the operating handles respectively. A pull handle is provided on the wire wheel, and the pull handle is exposed relative to the operating handle. Each wire wheel is connected to the rear end of the control pull wire.

[0018] In one embodiment,

[0019] The wire wheel comprises an inner ring body, an outer ring body and a shaft body;

[0020] The inner ring body is located radially inward of the outer ring body, and the inner ring body and the outer ring body extend in a circumferential direction relative to the shaft body;

[0021] The inner ring body is provided with a first guide groove, and the outer ring body is provided with a second guide groove.

[0022] In one embodiment,

[0023] The outer ring body comprises an arc-shaped limit strip, an arc-shaped connecting edge, and a tail end connecting wall, and the rear ends of the arc-shaped limit strip and the arc-shaped connecting edge are connected by the tail end connecting wall;

[0024] The wire wheel further comprises a side connecting plate, which is located on the same side of the inner ring body and the arc-shaped connecting edge in the axial direction, and the inner ring body and the arc-shaped connecting edge are connected by the side connecting plate;

[0025] The first guide groove is arranged at the radial outer edge of the inner ring body;

[0026] The second guide groove is a through groove, which is located between the arc-shaped limiting strip and the arc-shaped connecting edge, and its opening faces the front end direction.

[0027] In one embodiment,

[0028] There is a gap between the inner ring body and the shaft body, and the inner ring body and the shaft body are connected by connecting ribs;

[0029] The pull handle is connected to the outer ring body, and the pull handle is exposed relative to the operating handle.

[0030] In one embodiment,

[0031] The inner wall of the second guide groove, the front end of the arc-shaped connecting edge, and the front end of the side connecting plate are smoothly transitioned in sequence.

[0032] A mounting hole is provided on the housing of the operating handle.

[0033] Corresponding circumferential positioning parts are arranged on the inner wall of the mounting hole and the outer wall of the shaft body.

[0034] In one embodiment,

[0035] The control member includes a trigger and a traction member;

[0036] The trigger is movably mounted on the operating handle, and the trigger is connected to the rear end of the control cable;

[0037] A through hole is provided on the operating handle, the traction member is arranged outside the through hole, and the traction member is connected to the rear end of the control pull wire.

[0038] In one embodiment,

[0039] The wire passing device at least includes a first plate, a second plate, a third plate, a first connecting shaft, a second connecting shaft, and a third connecting shaft;

[0040] The first plate is spaced apart from the second plate, and the second plate is spaced apart from the third plate;

[0041] The first connecting shaft, the second connecting shaft and the third connecting shaft all pass through the first plate, the second plate and the third plate at the same time, and the third connecting shaft is located between the first connecting shaft and the second connecting shaft;

[0042] A plurality of wire-passing channels are formed between the first plate, the second plate, and the third plate, and the control pull wires pass through the wire-passing channels.

[0043] In one embodiment,

[0044] It also includes a fourth plate and a fourth connecting shaft, wherein the fourth plate is spaced apart from the third plate;

[0045] The first connecting shaft, the second connecting shaft, and the third connecting shaft simultaneously pass through the fourth plate;

[0046] The second plate and the third plate are L-shaped, and have a first bending arm and a second bending arm respectively. The first connecting axis, the second connecting axis, and the third connecting axis pass through the first bending arms of the second plate and the third plate, and the fourth connecting axis passes through the second bending arms of the second plate and the third plate; the wire passing channel is also formed between the second bending arms of the second plate and the third plate.

[0047] In one embodiment,

[0048] The first connecting shaft, the second connecting shaft and the third connecting shaft are rotating shafts, and / or,

[0049] Shaft sleeves are disposed outside the first connecting shaft, the second connecting shaft and the third connecting shaft.

[0050] The technical solution provided by the utility model has the following advantages and effects:

[0051] The control handle of the atrial appendage clamp delivery device described in the utility model controls at least two control pull wires through a control component, and further controls the front end of the atrial appendage clamp delivery device through the control pull wires to achieve the sealing operation of the atrial appendage. In order to avoid mutual interference or entanglement between the control pull wires, a wire passer is also provided in the control handle. The wire passer has a wire passing channel, and each control pull wire passes through each wire passing channel. Through the control handle, precise control of the front end movement of the atrial appendage clamp delivery device can be achieved, thereby improving the safety and effectiveness of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a structural diagram of the control handle in an embodiment of the utility model;

[0053] Figure 2 is a partial cross-sectional view of the control handle in an embodiment of the utility model;

[0054] Figure 3 is an exploded view of the control handle in an embodiment of the utility model;

[0055] Figure 4 is a side view of the wire wheel in an embodiment of the utility model;

[0056] Figure 5 is a cross-sectional view of the wire wheel in an embodiment of the utility model;

[0057] Figure 6 It is a first oblique view of the wire wheel in the embodiment of the utility model;

[0058] Figure 7 It is a second oblique view of the wire wheel in the embodiment of the utility model;

[0059] Figure 8 This is a structural diagram of the wire passer in an embodiment of the utility model;

[0060] Fig. 9 This is a partial disassembly diagram of the control handle in the embodiment of the utility model;

[0061] Description of reference numerals:

[0062] 12. Clamping adjustment cable, 45. Binding cable, 58. Direction adjustment cable,

[0063] 61, handle, 611, half shell,

[0064] 70. wire passer, 71. first plate, 72. second plate, 73. third plate, 74. fourth plate, 751. first bending arm, 752. second bending arm, 753. wire passing connecting arm, 761. first connecting shaft, 762. second connecting shaft, 763. third connecting shaft, 764. fourth connecting shaft, 77. wire passing channel,

[0065] 80. Wire wheel, 81. Inner ring body, 811. First guide groove, 82. Outer ring body, 821. Second guide groove, 83. Shaft body, 831. Inner shaft hole, 8311. Bushing, 832. First side shaft, 833. Second side shaft, 84. Pull handle, 840. Clamping shaft, 841. Cutting plane, 842. Cutting plane, 851. Arc-shaped limit strip, 852. Arc-shaped connecting edge, 853. Tail end connecting wall, 854. Side connecting plate, 855. Connecting rib, 856. Circumferential positioning portion,

[0066] 91. trigger, 92. pulling member, 93. unlocking member, 94. first torsion spring, 95. second torsion spring. DETAILED DESCRIPTION

[0067] In order to facilitate the understanding of the present invention, the specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0068] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0069] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0070] It should be noted that, in this document, “fixed to” or “connected to” may mean directly fixing or connecting to an element, or indirectly fixing or connecting to an element.

[0071] Please combine Figures 1 to 9 As shown, the control handle is arranged at the rear end of the conveying rod, and a control member is arranged on the control handle, and the control handle comprises:

[0072] A manipulation handle 61, the front end of which is a delivery rod 10, wherein the delivery rod 10 is hollow to form a passage;

[0073] A control member, which is movably mounted in the operating handle 61 and partially exposed;

[0074] A wire passing device 70, the wire passing device 70 is installed in the operating handle 61, and the wire passing device 70 has a wire passing channel 77;

[0075] The control pull wire 15 has a rear end connected to the control member, and after passing through the wire passer 70 , the front end thereof extends to the front end of the operating handle 61 through the channel.

[0076] In this embodiment, the operating handle 61 includes two half shells 611, which are enclosed to form the operating handle 61, and the control member includes a trigger 91, a traction member 92 and two wire wheels 80. The two wire wheels 80 are movably mounted on the operating handle 61, and a pull handle 84 is provided on the wire wheel 80. The pull handle 84 is exposed relative to the operating handle 61, and each wire wheel 80 is connected to the rear end of the control pull wire 15.

[0077] The wire wheel 80 includes an inner ring body 81, an outer ring body 82, a shaft body 83, a side connecting plate 854, and a pull handle 84; the inner ring body 81 is located radially inside the outer ring body 82, and the inner ring body 81 and the outer ring body 82 extend in the circumferential direction relative to the shaft body 83; a first guide groove 811 is provided on the inner ring body 81, and a second guide groove 821 is provided on the outer ring body 82; the shaft body 83 includes a first side shaft 832 and a second side shaft 833, and the first side shaft 832 and the second side shaft 833 are respectively located on both sides, and the diameter of the first side shaft 832 is greater than the diameter of the second side shaft 833; please focus on the combination Fig. 9 As shown, an inner shaft hole 831 is provided in the middle of the second side shaft 833, and a shaft sleeve 8311 is sleeved in the inner shaft hole 831. A clamping shaft 840 is installed between the two half shells 611. The two wire wheels 80 are installed on the clamping shaft 840 through their inner shaft holes 831. Two cutting planes are provided on the clamping shaft 840. The first cutting plane 841 forms a locking portion, which corresponds to the locking ear 911 on the trigger 91 and is used to lock or unlock the trigger 91. The second cutting plane 842 extends out of the operating handle 61 for installing an unlocking member 93. The trigger 91 is installed between the two half shells 611 through its handle hole 912. A first torsion spring 94 is provided between the trigger 91 and one of the half shells 611 for returning the trigger 91. A second torsion spring 95 is provided between the unlocking member 93 and one of the half shells 611 for returning the unlocking member 93.

[0078] The outer ring body 82 includes an arc-shaped limit strip 851, an arc-shaped connecting edge 852, and a tail end connecting wall 853, and the rear ends of the arc-shaped limit strip 851 and the arc-shaped connecting edge 852 are connected by the tail end connecting wall 853; the side connecting plate 854 is located on the same side of the inner ring body 81 and the arc-shaped connecting edge 852 in the axial direction, and the inner ring body 81 and the arc-shaped connecting edge 852 are connected by the side connecting plate 854; the first guide groove 811 is set at the radial outer edge of the inner ring body 81; the second guide groove 821 is a through groove, located between the arc-shaped limit strip 851 and the arc-shaped connecting edge 852, and its opening faces the front end direction. There is a gap between the inner ring body 81 and the shaft body 83, and the inner ring body 81 and the shaft body 83 are connected by a connecting rib 855; the pull handle 84 is connected to the outer ring body 82, and the pull handle 84 is exposed relative to the operating handle 61. The inner wall of the second guide groove 821, the front end of the arc-shaped connecting edge 852, and the front end of the side connecting plate 854 are smoothly transitioned in sequence. A mounting hole (not shown in the figure) is provided on the shell of the operating handle 61, and corresponding circumferential positioning portions 856 are provided on the inner wall of the mounting hole and the outer wall of the shaft body 83.

[0079] The trigger 91 is movably mounted on the operating handle 61 , and the trigger 91 is connected to the rear end of the control cable 15 ; a through hole is provided on the operating handle 61 , and the traction member 92 is arranged outside the through hole, and the traction member 92 is connected to the rear end of the control cable 15 .

[0080] In order to facilitate the arrangement of each control pull wire 15 and avoid the control pull wires 15 from being entangled with each other, a wire passer 70 is further provided, and the wire passer 70 includes a first plate 71, a second plate 72, a third plate 73, a fourth plate 74, a first connecting shaft 761, a second connecting shaft 762, a third connecting shaft 763, and a fourth connecting shaft 764; the first plate 71 is spaced from the second plate 72, the second plate 72 is spaced from the third plate 73, and the third plate 73 is spaced from the fourth plate 74;

[0081] The second plate 72 and the third plate 73 are L-shaped, and have a first bending arm 751 and a second bending arm 752 respectively. The first connecting shaft 761, the second connecting shaft 762, and the third connecting shaft 763 pass through the first bending arm 751 of the second plate 72 and the third plate 73, and the fourth connecting shaft 764 passes through the second plate 72 and the second bending arm 752 of the third plate 73; the first connecting shaft 761, the second connecting shaft 762 and the third connecting shaft 763 all pass through the first plate 71, the first bending arm 751 of the second plate 72, the first bending arm 751 of the third plate 73, and the fourth plate 74 at the same time, and the third connecting shaft 763 is located between the first connecting shaft 761 and the second connecting shaft 762; the fourth rotating shaft 764 passes through the The second bending arm 752 of the second plate 72, the second bending arm 752 of the third plate 73, the first plate 71, the first bending arm 751 of the second plate 72, the first bending arm 751 of the third plate 73, and the fourth plate 74, and the second bending arms 752 of the second plate 72 and the third plate 73 all form a wire passing channel 77 for the control wire 15 to pass through. The outer sides of the second bending arms 752 of the second plate 72 and the third plate 73 are connected by a wire passing connecting arm 753, which on the one hand fixes the second bending arms 752 of the second plate 72 and the third plate 73 to improve their connection strength and rigidity, and on the other hand limits and guides the control wire 15.

[0082] The first connecting shaft 761 , the second connecting shaft 762 , and the third connecting shaft 763 are rotating shafts, or sleeves are disposed outside the first connecting shaft 761 , the second connecting shaft 762 , and the third connecting shaft 763 to facilitate the flexible movement of the control wire 15 .

[0083] The control pull wire 15 includes two clamping adjustment pull wires 12, two binding pull wires 45, and four direction adjustment pull wires 58, wherein the two clamping adjustment pull wires 12 are connected to the trigger 91 at the same time; the two binding pull wires 45 are connected to the traction member 92 at the same time; the four direction adjustment pull wires 58 are divided into two groups, wherein the two pull wires of the first group of direction adjustment pull wires 58 are respectively connected to the opposite sides of the first wheel 80, and the direction adjustment pull wires 58 are clamped on the first guide groove 811; the two pull wires of the second group of direction adjustment pull wires 58 are respectively connected to the opposite sides of the second wheel 80, and the direction adjustment pull wires 58 are clamped on the first guide groove 811.

[0084] The above embodiments are not exhaustive enumerations based on the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A control handle for an atrial appendage clip delivery device, characterized in that: include, A manipulation handle, the front end of which is a delivery rod, and the delivery rod is hollow to form a channel; A control member, which is movably mounted in the operating handle and partially exposed; A wire passing device, which is installed in the operating handle and has a wire passing channel; At least two control pull wires, the rear ends of which are connected to the control member, and after passing through the wire passer, the front ends of which extend to the front end of the operating handle through the channel.

2. The control handle for the atrial appendage clamp delivery device according to claim 1, characterized in that: The control component includes at least two wire wheels, which are movably mounted on the operating handles respectively. A pull handle is provided on the wire wheel, and the pull handle is exposed relative to the operating handle. Each wire wheel is connected to the rear end of the control pull wire.

3. The control handle for the atrial appendage clamp delivery device according to claim 2, characterized in that: The wire wheel comprises an inner ring body, an outer ring body and a shaft body; The inner ring body is located radially inward of the outer ring body, and the inner ring body and the outer ring body extend in a circumferential direction relative to the shaft body; The inner ring body is provided with a first guide groove, and the outer ring body is provided with a second guide groove.

4. The control handle for the atrial appendage clamp delivery device as claimed in claim 3, characterized in that: The outer ring body comprises an arc-shaped limit strip, an arc-shaped connecting edge, and a tail end connecting wall, and the rear ends of the arc-shaped limit strip and the arc-shaped connecting edge are connected by the tail end connecting wall; The wire wheel further comprises a side connecting plate, which is located on the same side of the inner ring body and the arc-shaped connecting edge in the axial direction, and the inner ring body and the arc-shaped connecting edge are connected by the side connecting plate; The first guide groove is arranged at the radial outer edge of the inner ring body; The second guide groove is a through groove, which is located between the arc-shaped limiting strip and the arc-shaped connecting edge, and its opening faces the front end direction.

5. The control handle for the atrial appendage clamp delivery device as claimed in claim 4, characterized in that: There is a gap between the inner ring body and the shaft body, and the inner ring body and the shaft body are connected by connecting ribs; The pull handle is connected to the outer ring body, and the pull handle is exposed relative to the operating handle.

6. The control handle for the atrial appendage clamp delivery device according to claim 4, characterized in that: The inner wall of the second guide groove, the front end of the arc-shaped connecting edge, and the front end of the side connecting plate are smoothly transitioned in sequence. A mounting hole is provided on the housing of the operating handle. Corresponding circumferential positioning parts are arranged on the inner wall of the mounting hole and the outer wall of the shaft body.

7. The control handle for the atrial appendage clamp delivery device according to any one of claims 1 to 6, characterized in that: The control member includes a trigger and a traction member; The trigger is movably mounted on the operating handle, and the trigger is connected to the rear end of the control cable; A through hole is provided on the operating handle, the traction member is arranged outside the through hole, and the traction member is connected to the rear end of the control pull wire.

8. The control handle for the atrial appendage clamp delivery device according to any one of claims 1 to 6, characterized in that: The wire passing device at least includes a first plate, a second plate, a third plate, a first connecting shaft, a second connecting shaft, and a third connecting shaft; The first plate is spaced apart from the second plate, and the second plate is spaced apart from the third plate; The first connecting shaft, the second connecting shaft and the third connecting shaft all pass through the first plate, the second plate and the third plate at the same time, and the third connecting shaft is located between the first connecting shaft and the second connecting shaft; A plurality of wire-passing channels are formed between the first plate, the second plate, and the third plate, and the control pull wires pass through the wire-passing channels.

9. The control handle for the atrial appendage clamp delivery device according to claim 8, characterized in that: It also includes a fourth plate and a fourth connecting shaft, wherein the fourth plate is spaced apart from the third plate; The first connecting shaft, the second connecting shaft, and the third connecting shaft simultaneously pass through the fourth plate; The second plate and the third plate are L-shaped, and have a first bending arm and a second bending arm respectively. The first connecting axis, the second connecting axis, and the third connecting axis pass through the first bending arms of the second plate and the third plate, and the connecting axis passes through the second bending arms of the second plate and the third plate; the wire passing channel is also formed between the second bending arms of the second plate and the third plate.

10. The control handle for the atrial appendage clamp delivery device according to claim 8, characterized in that: The first connecting shaft, the second connecting shaft and the third connecting shaft are rotating shafts, and / or, Shaft sleeves are disposed outside the first connecting shaft, the second connecting shaft and the third connecting shaft.

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