CN115634076B - Artificial tendon grip and manipulator - Google Patents
Artificial tendon grip and manipulator Download PDFInfo
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- CN115634076B CN115634076B CN202211230235.0A CN202211230235A CN115634076B CN 115634076 B CN115634076 B CN 115634076B CN 202211230235 A CN202211230235 A CN 202211230235A CN 115634076 B CN115634076 B CN 115634076B
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Abstract
The invention relates to an artificial tendon rope clamping device and an operator, wherein the artificial tendon rope clamping device comprises: the seat body comprises a body part propped against the heart, a supporting part provided with one side of the body part deviating from the heart, and a clamping part provided with one side of the supporting part deviating from the body part, wherein the clamping part is provided with a first clamping surface arranged towards the supporting part; the clamping piece is movably arranged on the supporting part, and an abutting state and a separating state are arranged between the clamping piece and the first clamping surface; the elastic piece is respectively connected with the body part and the clamping piece; the elastic piece can drive the clamping piece to be abutted with the first clamping surface; the elastic piece deforms under the action of external force and drives the clamping piece to separate from the first clamping surface. The artificial tendon rope clamping device provided by the invention does not need to suture on the heart by using a suture line, reduces the damage to the heart, and does not need to suture the heart for the second time when the artificial tendon rope is tensioned, so that the secondary damage to heart cardiac muscle is avoided.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an artificial tendon cable clamping device and an operator.
Background
This section provides merely background information related to the present disclosure and is not necessarily prior art.
Mitral regurgitation (mitral regurgitation, MR) is one of the most common heart valve diseases today, the main causes of which are rheumatic heart disease, mitral valve myxotropy, heart ischemic disease, cardiomyopathy, etc., resulting in lesions of the annulus, leaflets, chordae tendineae and papillary muscles in the mitral valve structure, resulting in incomplete closure of the leaflets of the mitral valve.
The existing main interventional treatment mode of mitral regurgitation is artificial chordae implantation, one end of an artificial chordae is fixed on the mitral valve, the other end of the artificial chordae extends out of the heart and is sewn on the cardiac muscle through a suture line to cause injury to the cardiac muscle, and when the artificial chordae is in a loose condition, the artificial chordae sewn on the cardiac muscle needs to be removed and secondarily sewn to cause secondary injury to the cardiac muscle.
Disclosure of Invention
The invention aims to at least solve the problem that one end of an artificial tendon extending out of a heart is sewn on a cardiac muscle through a suture line to cause myocardial injury.
The aim is achieved by the following technical scheme:
in a first aspect of the present invention, an artificial tendon gripping apparatus is presented, the artificial tendon gripping apparatus comprising: the device comprises a seat body, a support part and a clamping part, wherein the seat body is propped against the outer wall of a heart, the support part is arranged on one side of the body, which is away from the heart, the clamping part is arranged on one side of the support part, which is away from the body, and the clamping part is provided with a first clamping surface which is arranged towards the support part; the clamping piece is movably arranged on the supporting part, and an abutting state and a separating state are arranged between the clamping piece and the first clamping surface; the elastic piece is respectively connected with the body part and the clamping piece; the elastic piece applies an elastic force towards the first clamping surface to the clamping piece so as to enable the clamping piece to be abutted with the first clamping surface; the elastic piece deforms under the action of external force and drives the clamping piece to be separated from the first clamping surface.
According to the artificial tendon clamping device provided by the invention, under the action of the elastic force of the elastic piece, the clamping piece and the clamping part clamp the artificial tendon and are abutted against the outer wall of the heart through the seat body, so that one end of the artificial tendon extending out of the heart is clamped and fixed, a suture line is not needed to be used for suturing on the heart, and the damage to the heart is reduced. And when the loose condition of artificial chordae can appear, only need to stimulate the elastic component and drive clamping piece and first clamping face separation, loosen the elastic component after adjusting artificial chordae to the continuous utilization clamping piece and clamping part are with artifical chordae clamp fixed, need not to carry out secondary sewing up to heart, avoid causing secondary injury to heart myocardium.
In addition, the artificial tendon gripping apparatus according to the present invention may have the following additional technical features:
in some embodiments of the invention, the body portion has a first plane that abuts the heart; the clamping piece is arranged on the supporting plane in a sliding manner; wherein the support plane is disposed obliquely with respect to the first plane, and the first clamping surface is disposed obliquely with respect to the support plane.
In some embodiments of the invention, the support plane intersects the first plane at a first line, the first clamping surface being parallel to the second line or the first line coinciding with the second line compared to the second line.
In some embodiments of the present invention, the angle between the supporting plane and the first plane is a first angle, the angle between the first clamping surface and the first plane is a second angle, the first angle ranges from 10 ° to 60 °, and the second angle is greater than the first angle and less than 180 °.
In some embodiments of the invention, the clamp comprises: a sliding plane in sliding fit with the support plane; the second clamping surface is intersected with the sliding plane and in abutting fit with the first clamping surface; the sliding plane is parallel to the supporting plane, and the second clamping surface is parallel to the first clamping surface.
In some embodiments of the invention, the first clamping surface and/or the second clamping surface are configured as roughened surfaces.
In some embodiments of the invention, the clamping portion comprises: a first side wall connected to the support portion; a second side wall connected to the support portion and disposed parallel to and spaced apart from the first side wall; the top wall is respectively connected with the first side wall and the second side wall, and one side of the top wall, facing the second clamping surface, forms the first clamping surface; wherein the first side wall, the second side wall and the support plane together define a sliding channel of the clamp, the sliding channel extending along a distal end of the support plane toward the first clamping surface.
In some embodiments of the invention, the artificial tendon gripping means further comprises: a first wire through hole formed in the first plane and communicating with a distal end of the sliding channel; and the second wire passing hole is arranged between the clamping part and the supporting part and is communicated with the proximal end of the sliding channel.
In some embodiments of the present invention, the body portion is further provided with a first connecting portion and a second connecting portion, the first connecting portion being located on one side of the first side wall, the second connecting portion being located on one side of the second side wall; the first side wall and the second side wall are respectively provided with a long hole communicated with the sliding channel; the clamping piece is provided with a through connecting hole; the elastic piece passes through the long hole and the connecting hole, and two ends of the elastic piece are respectively connected with the first connecting part and the second connecting part.
In some embodiments of the invention, the elastic member is a rope-like elastic member, and the elastic member includes at least one elastic wire.
In some embodiments of the present invention, the body portion is provided with a first relief groove and a second relief groove, the first relief groove being located between the first connecting portion and the first side wall, the second relief groove being located between the second connecting portion and the second side wall.
In some embodiments of the invention, the support further comprises: the first guide surface is arranged corresponding to the first avoiding groove; the second guide surface is arranged corresponding to the second avoidance groove; the first guide surface and the second guide surface are parallel to the supporting plane.
In some embodiments of the present invention, a side of the support portion facing the body portion is provided with a mating groove, the mating groove includes a first wall surface connected to the body portion and a second wall surface connected to the first wall surface, the second wall surface is parallel to the support plane, and an included angle between the second wall surface and the first wall surface is less than or equal to 90 °.
In some embodiments of the invention, the second wall is provided with a guide slot extending from a proximal end of the second wall towards the first wall.
In a second aspect, the present invention further provides an operator for implanting the artificial tendon gripping device according to the first aspect, wherein the operator includes: a handle; a sheath, a proximal end of the sheath being connected to the handle; a pulling claw connected with the distal end of the sheath tube, the pulling claw having a hook portion capable of hooking to an elastic member in the artificial tendon gripping device;
the pushing rod is slidably arranged in the sheath tube, and the distal end of the pushing rod can prop against the supporting part in the artificial tendon clamping device; the adjusting button is arranged on the handle and connected with the proximal end of the push rod, and can push the push rod to move along the length direction of the sheath tube relative to the sheath tube.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 schematically illustrates a schematic construction of an artificial tendon gripping apparatus according to an embodiment of the present invention;
FIG. 2 schematically illustrates a schematic structural view of an artificial tendon gripping device in a bottom view according to an embodiment of the present invention;
fig. 3 schematically illustrates a structural schematic view of a seat body according to an embodiment of the present invention;
fig. 4 schematically shows a schematic structural view of a clamping member according to an embodiment of the present invention;
fig. 5 schematically shows a schematic structural view of a clamp in a left view according to an embodiment of the invention;
FIG. 6 schematically illustrates a schematic structural view of an artificial tendon gripping device in a top view according to an embodiment of the present invention;
fig. 7 schematically illustrates a schematic view of a positional relationship among a first plane, a first clamping plane and a supporting plane according to an exemplary embodiment of the present invention;
fig. 8 schematically shows a schematic structural view of an operator according to an embodiment of the present invention;
FIG. 9 schematically illustrates an implantation process of an artificial tendon gripping device according to an embodiment of the present invention;
FIG. 10 schematically illustrates an enlarged partial schematic view of portion A of FIG. 9;
FIG. 11 schematically shows a partial structural view of an operator according to an embodiment of the present invention;
fig. 12 schematically shows a schematic structural view of an operator from a top view according to an embodiment of the present invention;
fig. 13 schematically shows a schematic structural view of an adjustment key according to an embodiment of the present invention;
fig. 14 schematically shows a schematic structural view of a pushing member according to an embodiment of the present invention.
The reference numerals are as follows:
100-an artificial tendon grip;
10 base bodies;
11-a body part, 111-a first plane, 112-a first connecting part, 113-a second connecting part, 114-a first avoidance groove and 115-a second avoidance groove;
12-supporting part, 121-supporting plane, 122-first guiding surface, 123-second guiding surface, 124-fitting groove, 1241-first wall, 1242-second wall, 12421-guiding groove;
13-clamping portion, 131-first side wall, 132-second side wall, 133-top wall, 1331-first clamping face;
14-sliding channel, 141-first via, 142-second via;
101-a first straight line, 102-a second straight line, 103-a long hole, 104-a first operation window, 105-a first operation window;
20-clamping piece, 21-sliding plane, 22-second clamping surface, 23-connecting hole;
30-an elastic member;
200-an operator;
201-handle, 202-sheath tube, 203-tension claw, 204-push rod, 205-adjusting key, 206-spring, 2011-handle clamping position, 2051-key clamping position, 2052-first arc surface, 207-pushing component and 2071 second arc surface;
300-artificial chordae.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.
It should be noted that "distal end" and "proximal end" are used as terms of orientation, which are terms commonly used in the field of interventional medical devices, where "distal end" refers to an end that is away from an operator during a surgical procedure and "proximal end" refers to an end that is near the operator during a surgical procedure. Axial, refers to a direction parallel to the line connecting the distal center and the proximal center of the medical instrument; radial refers to a direction perpendicular to the axial direction.
As shown in fig. 1 and 3, according to an embodiment of the present invention, an artificial tendon gripping apparatus is proposed.
The artificial tendon gripping apparatus 100 includes: the base 10, the clamping member 20 and the elastic member 30. Specifically, the seat body 10 includes a body portion 11, a supporting portion 12 and a clamping portion 13 that are sequentially connected, where the supporting portion 12 is disposed on a side of the body portion 11 facing away from the heart, the clamping portion 13 is disposed on a side of the supporting portion 12 facing away from the body portion 11, the clamping portion 13 has a first clamping surface 1331 disposed toward the supporting portion 12, the clamping member 20 is disposed between the first clamping surface 1331 and the supporting portion 12, and the clamping member 20 can move on the supporting portion 12, and the clamping member 20 can approach or depart from the first clamping surface 1331, so that an abutment state and a separation state are provided between the clamping member 20 and the first clamping surface 1331. In the abutting state, the clamping member 20 and the first clamping surface 1331 are used for clamping and fixing the artificial tendon 300, and in the separating state, the artificial tendon 300 can move on the artificial tendon clamping device 100 to adjust tightness. The elastic member 30 is connected to the body 11 and the clamping member 20, the elastic member 30 is configured to provide an elastic force towards the first clamping surface 1331 to the clamping member 20, the elastic member 30 drives the clamping member 20 to abut against the first clamping surface 1331 when the elastic member 30 is under the action of an external force, and the elastic member 30 deforms and drives the clamping member 20 to separate from the first clamping surface 1331 when the elastic member 30 is under the action of the external force.
The external force applied to the elastic member 30 may be either pulling force in the proximal direction or pushing force in the distal direction. When the elastic member 30 is subjected to a tensile force, the clamping member 20 is closer to the proximal end than the first clamping surface 1331. When the elastic member 30 receives the external force as the pushing force, the clamping member 20 is closer to the distal end with respect to the first clamping surface 1331.
In this embodiment, under the elastic force of the elastic member 30, the clamping member 20 and the clamping portion 13 clamp the artificial chordae 300, and the artificial chordae 300 is abutted against the outer wall of the heart through the seat 10, so that the end of the artificial chordae 300 extending out of the heart is clamped and fixed, and the heart is not required to be sutured with a suture line, thereby reducing the damage to the heart. Moreover, when the artificial tendon 300 is loose, the elastic element 30 is pulled to separate the clamping element 20 from the first clamping surface 1331, and the elastic element 30 is released after the artificial tendon 300 is adjusted, so that the artificial tendon is clamped and fixed by the clamping element 20 and the clamping portion 13, and secondary operation on the heart is not required, and secondary damage to heart myocardium is avoided.
In some embodiments of the present invention, as shown in fig. 2 to 6, the artificial tendon gripping device 100 further includes a first wire passing hole 141 and a second wire passing hole 142, the distal end of the sliding channel 14 extends to the first plane 111 and forms the first wire passing hole 141 on the first plane 111, and the proximal end of the sliding channel 14 extends to the proximal ends of the gripping portion 13 and the supporting portion 12 and forms the second wire passing hole 142 between the gripping portion 13 and the supporting portion 12. The end of the artificial tendon 300 extending out of the heart is inserted into the sliding channel 14 through the first wire passing hole 141 to be clamped between the first clamping surface 1331 and the second clamping surface 22, and extends out through the second wire passing hole 142, so that the end of the artificial tendon 300 extending out of the heart is clamped and fixed at the apex position during the operation of implanting the artificial tendon 300.
In the present embodiment, as shown in fig. 1, 2, 3 and 6, the body portion 11 has a first plane 111, a support plane 121 is disposed on a side of the support portion 12 facing away from the body portion 11, and the clamping member 20 is slidably disposed on the support plane 121, so that when the clamping member 20 slides on the support plane 121 through the inclined disposition of the first clamping surface 1331 relative to the support plane 121, the clamping member 20 can have a relative displacement with respect to the first clamping surface 1331 in a direction perpendicular to the first clamping surface 1331, thereby enabling the clamping member 20 and the first clamping surface 1331 to be transitionable between the abutting state and the separating state. It should also be noted that the support plane 121 is disposed obliquely with respect to the first plane 111 to facilitate the implantation of the artificial tendon gripping apparatus 100.
Referring to fig. 1 and 7, during implantation of the artificial tendon gripping apparatus 100, the procedure is performed through the chest cavity opening. Since artificial tendon gripping apparatus 100 rests against the apex of the heart, typically in a proximal direction, and the operator has an angle of inclination from the apex, when first plane 111 rests against the apex of the heart, the direction of first plane 111 perpendicular to first plane 111 is oriented toward the chest opening, and support plane 121 is inclined relative to first plane 111, so that second wire passing hole 142 is capable of facing the operator to facilitate the operator to capture artificial tendon 300 and grip it on artificial tendon gripping apparatus 100 to facilitate implantation of artificial tendon gripping apparatus 100.
Specifically, during the implantation process, on the one hand, a pulling force needs to be applied to the elastic member 30, so that the elastic member 30 drives the clamping member 20 to separate from the first clamping surface 1331, and meanwhile, the end of the artificial tendon 300 extending out of the heart needs to be captured and pass through between the clamping member 20 and the first clamping surface 1331, and due to the small incision adopted in the operation, the operation space is limited, and the structure such as the supporting portion 12 extremely shields or interferes with the end of the artificial tendon 300 extending out of the heart. Therefore, the support plane 121 is obliquely arranged relative to the first plane 111, so that the first operation window 104 for supporting the elastic element 30 of the push rod 204 is formed between the proximal end of the support plane 121 and the body 11, and meanwhile, the second operation window 105 for capturing or clamping one end of the artificial tendon 300 extending out of the heart is formed between the support plane 121 and the first clamping plane, so that the operation window distribution in the implantation process of the artificial tendon clamping device 100 is more reasonable, the operation difficulty of the artificial tendon clamping device 100 in implantation is reduced, the implantation efficiency of the artificial tendon clamping device 100 is improved, and the operation time is shortened.
Further, the support plane 121 intersects the first plane 111 at a first straight line 101, and the first clamping surface 1331 is parallel to the first straight line 101 and the second straight line 102 compared to the second straight line 102, so that the first operation window 104 between the support plane 121 and the first plane 111 and the second operation window 105 between the first clamping surface 1331 and the support plane 121 are oriented in a consistent direction, and both the directions of the apex of the heart toward the chest opening are oriented, so as to facilitate capturing the elastic member 30 and the artificial chordae 300.
Alternatively, in other embodiments, the first line 101 coincides with the second line 102.
In some embodiments of the present invention, the supporting plane 121 and the first plane 111 have a first angle, the first clamping surface 1331 and the first plane 111 have a second angle, and the first angle ranges from 10 ° to 60 °, and the second angle is greater than the first angle and less than 180 °. It is understood that the first angle may be 10 °, 15 °, 30 °, 40 °, 45 °, etc. The second angle may be 60, 65 °, 70 °, 75 °, 80 °, 100 °, etc.
In an exemplary embodiment, the first line 101 coincides with the second line 102, the first angle being 45 ° and the second angle being 90 °. In this embodiment, the included angle between the supporting plane 121 and the first plane 111 and the included angle between the supporting plane 121 and the first clamping surface 1331 are both 45 °, so that the space between the first operation window 104 and the second operation window 105 is equal, so as to facilitate capturing the elastic member 30 and the artificial chordae. It should be further noted that, the angle between the first clamping surface 1331 and the first plane 111 is 90 °, so that the artificial chordae can smoothly extend between the clamping member 20 and the first plane 111 from the apex of the heart, and the bending degree of the artificial chordae is reduced, thereby reducing the bending damage to the artificial chordae.
In this embodiment, as shown in fig. 3 and 5, the clamping member 20 includes a sliding plane 21 and a second clamping surface 22, the sliding plane 21 is slidably matched with the supporting plane 121, the sliding process of the clamping member 20 on the supporting portion 12 is more stable through the sliding matching between the surfaces, the second clamping surface 22 intersects with the sliding plane 21 and is in abutting fit with the first clamping surface 1331, the effective clamping distance of the artificial tendon 300 is increased through the matching between the first clamping surface 1331 and the second clamping surface 22, and the pressure of the artificial tendon 300 in the clamped state is reduced, so that the clamping effect is more firm on one hand, and the extrusion damage to the artificial tendon 300 is reduced on the other hand. The sliding plane 21 is parallel to the supporting plane 121, the second clamping surface 22 is parallel to the first clamping surface 1331, so that when the clamping member 20 slides on the supporting plane 121, the second clamping surface 22 and the first clamping surface 1331 are always kept in a parallel state, and the pressures of the areas when the second clamping surface 22 and the first clamping surface 1331 are propped against each other are equal, so that the damage to the artificial tendon 300 caused by excessive local pressure is avoided.
In order to increase the locking force on the artificial tendon 300, as shown in fig. 5, the first clamping surface 1331 or the second clamping surface 22 is configured as a rough surface, or both the first clamping surface 1331 and the second clamping surface 22 are configured as rough surfaces, so as to lock the artificial tendon 300.
In one exemplary embodiment, as shown in fig. 5, the second clamping surface 22 is serrated. In other embodiments, the second clamping surface 22 is provided with knurled or densely packed bump structures to increase the roughness of the second clamping surface 22.
In some embodiments of the present invention, as shown in fig. 1 and 6, the clamping portion 13 includes a first sidewall 131, a second sidewall 132, and a top wall 133, the first sidewall 131 and the second sidewall 132 are connected to the supporting portion 12, and the first sidewall 131 and the second sidewall 132 are disposed in parallel and spaced apart. The top wall 133 is connected to the first side wall 131 and the second side wall 132 at both sides thereof, and the top wall 133, the first side wall 131, the second side wall 132 and the supporting plane 121 together define the sliding channel 14. The sliding channel 14 extends along the distal end of the support plane 121 towards the first clamping surface 1331. In this embodiment, the sliding channel 14 is used to define the sliding direction of the clamping member 20, so that the clamping member 20 can only slide along the extending direction of the sliding channel 14, thereby making the moving track of the clamping member 20 more precise and improving the precision of the artificial tendon clamping device 100 during implantation.
In some embodiments of the present invention, as shown in fig. 1, 4 and 6, the body 11 is further provided with a first connection portion 112 and a second connection portion 113, the first connection portion 112 is located on one side of the first sidewall 131, the first connection portion 112 is spaced apart from the first sidewall 131, the second connection portion 113 is located on one side of the second sidewall 132, and the second connection portion 113 is spaced apart from the second sidewall 132. The first side wall 131 and the second side wall 132 are each provided with a long hole 103 communicating with the slide passage 14, the clip 20 is provided with a through connection hole 23,
the both ends of the connection hole 23 are respectively opposed to the long holes 103 on the first side wall 131 and the second side wall 132. The elastic member 30 is a string-like member made of one or more elastic filaments. The two units of the elastic member 30 are respectively connected to the first connection portion 112 and the second connection portion 113, and the elastic member 30 sequentially passes through the long hole 103 and the connection hole 23. In a state of not receiving an external force, the elastic member 30 is in a stretched state, and the clamping member 20 is pressed against the first clamping surface 1331, so that the first clamping surface 1331 and the second clamping surface 22 are tightly attached.
Further, the body portion 11 is provided with a first avoidance groove 114 and a second avoidance groove 115, the first avoidance groove 114 is located between the first connecting portion 112 and the first side wall 131, the second avoidance groove 115 is located between the second connecting portion 113 and the second side wall 132, and the first avoidance groove 114 and the second avoidance groove 115 are used for avoiding the claw-shaped member in the manipulator 200 so that the claw-shaped member can grasp the elastic member 30.
Further, as shown in fig. 1, the supporting portion 12 further includes a first guiding surface 122 and a second guiding surface 123, where the first guiding surface 122 is located on one side of the first sidewall 131 and corresponds to the first avoidance groove 114, and the second guiding surface 123 is located on one side of the second sidewall 132 and corresponds to the second avoidance groove 115, and both the first guiding surface 122 and the second guiding surface 123 are parallel to the supporting plane 121, so that the claw member supports and guides the movement of the claw member after grabbing the elastic member 30, on one hand, the claw member is convenient to exert a force, on the other hand, the claw member is smoother to move, the shake of the artificial tendon rope clamping device 100 is reduced, and the smoothness of the implantation process of the artificial tendon rope clamping device 100 is improved.
It should be noted that, the first side wall 131 and the second side wall 132 are protruded from the first guide surface 122 and the second guide surface 123, the first connecting portion 112 and the second connecting portion 113 are protruded from the body portion 11, and the positions of the claw-shaped members can be limited by the first side wall 131, the first connecting portion 112, the second side wall 132 and the second connecting portion 113, so that the claw-shaped members can hook the elastic wires according to the angle requirement without deviation.
In some embodiments of the present invention, as shown in fig. 3, a side of the support portion 12 facing the body portion 11 is provided with a mating groove 124, the mating groove 124 being for abutting engagement with a push rod 204 in the manipulator 200, the distal end of the push rod 204 in the manipulator 200 abutting against the mating groove 124 during implantation, the mating groove 124 providing an application point for the distal end of the push rod 204. The mating groove 124 includes a first wall 1241 connected to the body 11 and a second wall 1242 connected to the first wall 1241, where the second wall 1242 is parallel to the supporting plane 121, so that the extending direction of the push rod 204 is always the same as the second wall 1242, so as to avoid the second wall 1242 interfering with the push rod 204. The included angle between the second wall 1242 and the first wall 1241 is less than or equal to 90 °, so that the distal end of the push rod 204 is limited between the first wall 1241 and the second wall 1242, and the push rod 204 is prevented from sliding out of the mating groove 124.
Further, as shown in fig. 3, the second wall 1242 is provided with a guiding groove 12421, the guiding groove 12421 extends from the proximal end of the second wall 1242 toward the first wall 1241, the contour of the guiding groove 12421 matches with the contour of the push rod 204, and during the implantation process, the push rod 204 can bear the force in the radial direction through the cooperation of the outer wall surface of the push rod 204 and the inner wall surface of the guiding groove 12421, so as to further limit the sliding of the push rod 204 along the radial direction of the push rod 204, and improve the stability of the artificial tendon clamping device 100 during the implantation process.
The body 11 is wrapped with a PET film (polyester substrate) to make the surface of the artificial tendon grip 100 softer and avoid injuring myocardial tissue.
The materials of the components of the artificial tendon gripping device 100 according to the present invention are preferably metals or polymer materials meeting the requirement of biocompatibility, such as stainless steel SUS316L, cobalt-based alloy, PEEK (polyetheretherketone), and the like.
According to an embodiment of the present invention, as shown in fig. 8, there is also provided an operator 200, wherein the operator 200 is used for implanting the artificial tendon gripping apparatus 100, and the operator performs the actions of delivering, implanting, locking, releasing, etc. the artificial tendon gripping apparatus 100 by using the operator 200.
The operator 200 includes: handle 201, sheath 202, pulling grip 203, push rod 204, and adjustment button 205.
Specifically, as shown in connection with fig. 8-10, the proximal end of the sheath 202 is connected to the handle 201; the pulling claw 203 is connected to the distal end of the sheath 202, and the pulling claw 203 (i.e., the claw-shaped member) has a hook portion, which can be hooked to the elastic member 30 in the artificial tendon gripping device 100. A push rod 204 is slidably disposed within the sheath 202, and a distal end of the push rod 204 is capable of abutting against the mating groove 124 on the support portion 12 of the housing 10 in the artificial tendon gripping apparatus 100. An adjustment button 205 is provided on the handle 201 and is connected to the proximal end of the push rod 204, the adjustment button 205 being capable of pushing the push rod 204 relative to the sheath 202 to move along the length of the sheath 202.
As shown in fig. 11 to 14, the manipulator 200 further includes a pushing member 207 and a spring 206, the pushing member 207 is welded on the pushing rod, the spring 206 is sleeved on the push rod 204, and the distal end of the spring 206 abuts against the handle 201, the proximal end of the spring 206 abuts against a side surface of the pushing member 207 facing distally, a second circular arc surface 2071 positioned on the pushing member 207 on the lower shell of the handle 201 cooperates with a first circular arc surface 2052 on the adjusting key 205, when the adjusting key 205 is rotated, the adjusting key 205 rotates around the rotation axis, and the pushing member 207 and the push rod 204 connected thereto are axially moved by the first circular arc surface 2052, wherein the push rod 204 is positioned on the central axis. After the adjusting button 205 is rotated, the button clamping position 2051 on the adjusting button 205 passes through the button clamping position 2051 on the adjusting button 205 shell in the proximal direction, the adjusting button 205 is clamped at the far end of the handle clamping position 2011 of the handle 201 shell, at this time, the artificial tendon clamping device 100 and the controller can be connected together, and the button clamping position 2051 is pushed in the proximal direction, so that when the button clamping position 2051 is positioned at the near end of the handle clamping position 2011, the controller 200 can release the artificial tendon clamping device 100.
The procedure for implanting the artificial tendon gripping device 100 is as follows:
(1) The elastic member 30 is hooked by the pulling claw 203, the push rod 204 is pushed by the adjusting button 205, so that the outer sheath drives the pulling claw 203 to move towards the proximal end relative to the push rod 204, and the clamping member 20 is pulled away, so that a channel is opened between the first clamping surface 1331 and the second clamping surface 22, the channel width is D, and the D is larger than or equal to the diameter of the artificial tendon 300. After opening the channel, the artificial chordae 300 are guided through the channel.
(2) The length of the artificial tendon 300 can be freely adjusted by keeping the state of pressing the adjusting button 205, determining the length to be implanted finally, canceling the pressing state, moving the clamping member 20 towards the top wall 133 under the elastic force of the elastic member 30, and the first clamping surface 1331 and the second clamping surface 22 prop against each other to clamp and fix the artificial tendon, thereby locking the length.
(3) After determining the length again, the adjusting button 205 is shifted to disengage the tension claw 203 from the elastic member 30, and the artificial tendon gripping apparatus 100 is released, thereby completing the operation. The artificial tendon gripping apparatus 100 may apply a locking force F to the artificial tendon 300 to lock and fix the artificial tendon 300 to the apex of the heart.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (14)
1. An artificial tendon gripping apparatus, comprising:
the device comprises a seat body, a support part and a clamping part, wherein the seat body is propped against the outer wall of a heart, the support part is arranged on one side of the body, which is away from the heart, the clamping part is arranged on one side of the support part, which is away from the body, and the clamping part is provided with a first clamping surface which is arranged towards the support part;
the clamping piece is movably arranged on the supporting part, and an abutting state and a separating state are arranged between the clamping piece and the first clamping surface;
the elastic piece is respectively connected with the body part and the clamping piece;
the elastic piece applies an elastic force towards the first clamping surface to the clamping piece so as to enable the clamping piece to be abutted with the first clamping surface; the elastic piece deforms under the action of external force and drives the clamping piece to be separated from the first clamping surface;
the body portion has a first plane that abuts the heart;
the clamping piece is arranged on the supporting plane in a sliding manner;
wherein the supporting plane is obliquely arranged relative to the first plane, so that a first operation window is formed between the proximal end of the supporting plane and the body part;
the first clamping surface is obliquely arranged relative to the supporting plane, so that a second operation window is formed between the supporting plane and the first clamping surface;
in the abutting state, the clamping piece and the first clamping surface are used for clamping and fixing the artificial tendon, and in the separating state, the artificial tendon can move on the artificial tendon clamping device to adjust tightness.
2. An artificial tendon gripping apparatus as claimed in claim 1,
the support plane intersects the first plane in a first straight line, and the first clamping surface is parallel to the second straight line or coincides with the second straight line compared with the second straight line.
3. An artificial tendon gripping apparatus as claimed in claim 1,
the included angle value of the supporting plane and the first plane is a first angle, the included angle value of the first clamping surface and the first plane is a second angle, the value range of the first angle is 10-60 degrees, and the second angle is larger than the first angle and smaller than 180 degrees.
4. An artificial tendon gripping apparatus as claimed in any one of claims 1 to 3 in which the gripping means includes:
a sliding plane slidably engaged with the support plane;
the second clamping surface is intersected with the sliding plane and in abutting fit with the first clamping surface;
the sliding plane is parallel to the supporting plane, and the second clamping surface is parallel to the first clamping surface.
5. An artificial tendon gripping apparatus as claimed in claim 4,
the first clamping surface and/or the second clamping surface are configured as rough surfaces.
6. An artificial tendon gripping means as claimed in claim 4 in which the gripping means includes:
a first side wall connected to the support portion;
a second side wall connected to the support portion and disposed parallel to and spaced apart from the first side wall;
the top wall is respectively connected with the first side wall and the second side wall, and one side of the top wall, facing the second clamping surface, forms the first clamping surface;
wherein the first side wall, the second side wall and the support plane together define a sliding channel of the clamp, the sliding channel extending along a distal end of the support plane toward the first clamping surface.
7. An artificial tendon gripping apparatus as claimed in claim 6, further including:
a first wire through hole formed in the first plane and communicating with a distal end of the sliding channel;
and the second wire passing hole is arranged between the clamping part and the supporting part and is communicated with the proximal end of the sliding channel.
8. An artificial tendon gripping apparatus as claimed in claim 6,
the body part is also provided with a first connecting part and a second connecting part, the first connecting part is positioned on one side of the first side wall, and the second connecting part is positioned on one side of the second side wall;
the first side wall and the second side wall are respectively provided with a long hole communicated with the sliding channel;
the clamping piece is provided with a through connecting hole;
the elastic piece passes through the long hole and the connecting hole, and two ends of the elastic piece are respectively connected with the first connecting part and the second connecting part.
9. An artificial tendon gripping apparatus as claimed in claim 8,
the elastic piece is a rope-shaped elastic piece and comprises at least one elastic wire.
10. An artificial tendon gripping apparatus as claimed in claim 8,
the body portion is equipped with first groove and the second groove of dodging, first groove of dodging is located first connecting portion with between the first lateral wall, the second groove of dodging is located between second connecting portion and the second lateral wall.
11. An artificial tendon gripping apparatus as claimed in claim 10, in which the support section further includes:
the first guide surface is arranged corresponding to the first avoiding groove;
the second guide surface is arranged corresponding to the second avoidance groove;
the first guide surface and the second guide surface are parallel to the supporting plane.
12. An artificial tendon gripping apparatus as claimed in claim 1,
the supporting part is towards one side of body portion is equipped with the cooperation groove, the cooperation groove include with the first wall that body portion links to each other and with the second wall that first wall links to each other, the second wall with the supporting plane is parallel, the contained angle between second wall and the first wall is less than or equal to 90.
13. An artificial tendon gripping apparatus as claimed in claim 12,
the second wall surface is provided with a guide groove, and the guide groove extends from the proximal end of the second wall surface towards the first wall surface.
14. An manipulator for implanting an artificial tendon gripping device as claimed in any one of claims 1 to 13 including:
a handle;
a sheath, a proximal end of the sheath being connected to the handle;
a pulling claw connected with the distal end of the sheath tube, the pulling claw having a hook portion capable of hooking to an elastic member in the artificial tendon gripping device;
the pushing rod is slidably arranged in the sheath tube, and the distal end of the pushing rod can prop against the supporting part in the artificial tendon clamping device;
the adjusting button is arranged on the handle and connected with the proximal end of the push rod, and can push the push rod to move along the length direction of the sheath tube relative to the sheath tube.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211230235.0A CN115634076B (en) | 2022-10-08 | 2022-10-08 | Artificial tendon grip and manipulator |
| PCT/CN2023/117240 WO2024074089A1 (en) | 2022-10-08 | 2023-09-06 | Artificial chordae tendineae clamping device and operator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211230235.0A CN115634076B (en) | 2022-10-08 | 2022-10-08 | Artificial tendon grip and manipulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115634076A CN115634076A (en) | 2023-01-24 |
| CN115634076B true CN115634076B (en) | 2023-09-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211230235.0A Active CN115634076B (en) | 2022-10-08 | 2022-10-08 | Artificial tendon grip and manipulator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115634076B (en) |
| WO (1) | WO2024074089A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115634076B (en) * | 2022-10-08 | 2023-09-01 | 瀚芯医疗科技(深圳)有限公司 | Artificial tendon grip and manipulator |
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|---|---|---|---|---|
| US9877833B1 (en) * | 2016-12-30 | 2018-01-30 | Pipeline Medical Technologies, Inc. | Method and apparatus for transvascular implantation of neo chordae tendinae |
| CN208481414U (en) * | 2017-12-20 | 2019-02-12 | 郑春雷 | A kind of medical gall stone exploration type clamp device |
| CN215227977U (en) * | 2021-05-18 | 2021-12-21 | 河南科技大学 | Portable adjustable medical combined drag hook |
| CN113993481A (en) * | 2019-07-03 | 2022-01-28 | 波士顿科学国际有限公司 | Devices, systems, and methods for adjustably tensioning artificial chordae tendineae between leaflets and papillary muscles or heart walls |
| WO2022027941A1 (en) * | 2020-08-03 | 2022-02-10 | 上海端佑医疗科技有限公司 | Implant and assembly used in forming same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070049952A1 (en) * | 2005-08-30 | 2007-03-01 | Weiss Steven J | Apparatus and method for mitral valve repair without cardiopulmonary bypass, including transmural techniques |
| US7431692B2 (en) * | 2006-03-09 | 2008-10-07 | Edwards Lifesciences Corporation | Apparatus, system, and method for applying and adjusting a tensioning element to a hollow body organ |
| JP2021168768A (en) * | 2020-04-14 | 2021-10-28 | 正則 阪口 | Apparatus for repairing deviation of valve apex by mounting artificial chordae tendineae on heart valve apex under beat |
| US20220096235A1 (en) * | 2020-09-30 | 2022-03-31 | Boston Scientific Scimed, Inc. | Devices, systems, and methods for adjustably tensioning artificial chordae tendineae in a heart |
| US20220249232A1 (en) * | 2021-02-10 | 2022-08-11 | Edwards Lifesciences Corporation | Implanting grafts to valve leaflets for cardiac procedures |
| CN115634076B (en) * | 2022-10-08 | 2023-09-01 | 瀚芯医疗科技(深圳)有限公司 | Artificial tendon grip and manipulator |
| CN115708732B (en) * | 2022-10-08 | 2023-07-25 | 瀚芯医疗科技(深圳)有限公司 | Artificial tendon tensioning device and manipulator |
-
2022
- 2022-10-08 CN CN202211230235.0A patent/CN115634076B/en active Active
-
2023
- 2023-09-06 WO PCT/CN2023/117240 patent/WO2024074089A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9877833B1 (en) * | 2016-12-30 | 2018-01-30 | Pipeline Medical Technologies, Inc. | Method and apparatus for transvascular implantation of neo chordae tendinae |
| CN208481414U (en) * | 2017-12-20 | 2019-02-12 | 郑春雷 | A kind of medical gall stone exploration type clamp device |
| CN113993481A (en) * | 2019-07-03 | 2022-01-28 | 波士顿科学国际有限公司 | Devices, systems, and methods for adjustably tensioning artificial chordae tendineae between leaflets and papillary muscles or heart walls |
| WO2022027941A1 (en) * | 2020-08-03 | 2022-02-10 | 上海端佑医疗科技有限公司 | Implant and assembly used in forming same |
| CN215227977U (en) * | 2021-05-18 | 2021-12-21 | 河南科技大学 | Portable adjustable medical combined drag hook |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115634076A (en) | 2023-01-24 |
| WO2024074089A1 (en) | 2024-04-11 |
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