A transfemoral retrograde aortic valve leaflet anterior clamping device

Abstract

The present invention discloses a transfemoral retrograde aortic valve leaflet forward clamping device, comprising a clamp, a transmission steel cable, a manipulation fiber, and an in vitro manipulator, one end of the transmission steel cable is connected to the clamp, a plurality of first guide grooves are provided on the clamp, and the first guide grooves are evenly arranged along the circumferential direction with the clamp axis as the center; a guide hole is provided along the axis of the clamp, a support frame is slidably connected to the guide hole, and the support frame is connected to the support frame, a plurality of second guide grooves are provided on the support frame, and each second guide groove corresponds to the first guide groove, and the first guide groove and the second guide groove form a sliding cavity. The transfemoral retrograde aortic valve leaflet forward clamping device is very small in size, can be repeatedly operated under ultrasound guidance, has the characteristics of small trauma, easy operation, and few complications, and doctors can use the device to perform minimally invasive surgery with high safety, low operating difficulty, and good treatment effect.

Description

Technical Field

[0001] The invention relates to the field of medical equipment, and in particular to a transfemoral retrograde aortic valve leaflet forward clamping device. Background Art

[0002] With the aging of the population, aortic valve disease has become the main influencing factor of valvular disease in the elderly, often leading to heart failure, heart failure, and even death. At present, it is difficult to treat elderly and high-risk aortic valve patients because the aortic valve regurgitation is caused by the large valve ring, large gap between the valve leaflets, and severe calcification of the valve ring.

[0003] Most current treatments use open-chest treatment, but for patients with more difficult surgeries, the safety is low. In response to the above problems, an innovative design was made based on the original transfemoral retrograde aortic valve leaflet forward clamping device. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a transfemoral retrograde aortic valve leaflet forward clamping device, which solves the problem of low safety for patients with high surgical difficulty.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a transfemoral retrograde aortic valve leaflet forward clamping device, comprising a clamp, a support frame and a manipulation fiber, one end of the clamp is connected to an endoscopic therapeutic instrument, a plurality of first guide grooves are provided on the clamp, and the first guide grooves are evenly arranged along the circumferential direction with the axis of the clamp as the center;

[0008] A guide hole is provided on the clamp along the axis, the support frame is slidably connected to the guide hole, and the support frame is connected to the endoscopic therapeutic instrument, a plurality of second guide grooves are provided on the support frame, and each of the second guide grooves corresponds to the first guide groove, and the first guide groove and the second guide groove form a sliding cavity;

[0009] The manipulation fiber thread is arranged in the sliding cavity, and the manipulation fiber thread is used for suturing the valve leaflet.

[0010] Preferably, the first guide groove includes a first arc groove, a straight hole and a straight groove, the direction of the straight hole is the same as the axis of the clamp, the straight hole, the first arc groove and the straight groove are connected end to end in sequence, and there is a certain angle between the axis of the straight groove and the axis of the straight hole.

[0011] Preferably, the angle between the axis of the straight hole and the axis of the straight groove is 0°-30°.

[0012] Preferably, the number of the first guide grooves is at least three.

[0013] Preferably, the support frame includes a guide rod and a base plate, the base plate is arranged at one end of the guide rod, and the guide rod is perpendicular to the base plate, the guide rod is slidably matched with the guide hole, the second guide groove is arranged on the base plate, and the number of the second guide grooves is the same as that of the first guide grooves.

[0014] Preferably, the second guide groove includes a second arc groove and a guide edge, the second arc groove is arranged on the top surface of the base plate, the guide edge is arranged on the outer circular surface of the base plate, and the second arc groove is connected to the guide edge.

[0015] Preferably, a protective cover is provided at one end of the clamp away from the therapeutic apparatus, and the end of the protective cover away from the clamp is an arc surface.

[0016] Preferably, the material of the protective cover is silicone.

[0017] (III) Beneficial effects

[0018] The present invention provides a device for anterior clamping of aortic valve leaflets via the femoral artery. It has the following beneficial effects:

[0019] The transfemoral retrograde aortic valve leaflet antegrade clamping device is very small in size, and physicians can use the device to perform minimally invasive surgery with high safety, low operating difficulty, good treatment effect, low cost, and low learning difficulty, thereby saving patients' lives. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a stereoscopic view of the present invention;

[0021] Figure 2 is a top view of the present invention;

[0022] Figure 3 is a front cross-sectional view of the curled state of the present invention;

[0023] Figure 4 It is a front half-sectional view of the expanded state of the present invention.

[0024] In the figure: 1. clamp; 101. guide hole; 102. first guide groove; 1021. first arc groove; 1022. straight hole; 1023. straight groove; 2. support frame; 201. guide rod; 202. bottom plate; 203. second guide groove; 2031. second arc groove; 2032. guide edge; 3. protective cover; 4. manipulation of fiber filaments. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1-Figure 4 As shown, the present invention provides a technical solution: a transfemoral retrograde aortic valve leaflet forward clamping device, comprising a clamp 1, a guide hole 101, a first guide groove 102, a first arc groove 1021, a straight hole 1022, a straight groove 1023, a support frame 2, a guide rod 201, a bottom plate 202, a second guide groove 203, a second arc groove 2031, a guide edge 2032, a protective cover 3 and a manipulation fiber filament 4, one end of the clamp 1 is connected to an endoscopic therapeutic instrument, and a plurality of first guide grooves 102 are provided on the clamp 1. The first guide grooves 102 are evenly arranged along the circumferential direction with the axis of the clamp 1 as the center; a guide hole 101 is arranged on the clamp 1 along the axis, the support frame 2 is slidably connected with the guide hole 101, and the support frame 2 is connected to the endoscopic therapeutic instrument, and a plurality of second guide grooves 203 are arranged on the support frame 2, and each second guide groove 203 corresponds to the first guide groove 102, and the first guide groove 102 and the second guide groove 203 form a sliding cavity; the manipulation fiber filament 4 is arranged in the sliding cavity, and the manipulation fiber filament 4 is used to sew the valve leaflet.

[0027] The first guide groove 102 includes a first arc groove 1021, a straight hole 1022 and a straight groove 1023. The direction of the straight hole 1022 is the same as the axis of the clamp 1. The straight hole 1022, the first arc groove 1021 and the straight groove 1023 are connected end to end in sequence, and there is a certain angle between the axis of the straight groove 1023 and the axis of the straight hole 1022. When the manipulated fiber filament 4 is transported in the sliding cavity, the first guide groove 102 guides the first arc groove 1021, so that the manipulated fiber filament 4 is in a hook-shaped structure when leaving the inside of the clamp 1.

[0028] The angle between the axis of the straight hole 1022 and the axis of the straight groove 1023 is 0°-30 degrees. By setting an angle between the straight hole 1022 and the straight groove 1023, the manipulation fiber filament 4 can form a hook-shaped structure when output, thereby connecting and suturing the separated leaflets.

[0029] The number of the first guide grooves 102 is at least three. The first guide grooves 102 evenly arranged along the circumferential direction on the clamp 1 can achieve at least three sutures of the affected area using the manipulation fiber filaments 4 during one treatment, thereby improving the fixation effect.

[0030] The support frame 2 includes a guide rod 201 and a base plate 202. The base plate 202 is arranged at one end of the guide rod 201, and the guide rod 201 is perpendicular to the base plate 202. The guide rod 201 is slidably matched with the guide hole 101. The second guide groove 203 is arranged on the base plate 202, and the number of the second guide grooves 203 is the same as that of the first guide grooves 102. When the therapeutic device drives the support frame 2, the base plate 202 can be driven to move on the clamp 1 by pushing the guide rod 201, so that the first guide groove 102 is separated or attached to the second guide groove 203, thereby controlling the bending direction of the manipulated fiber filament 4.

[0031] The second guide groove 203 includes a second arc groove 2031 and a guide edge 2032. The second arc groove 2031 is arranged on the top surface of the base plate 202, and the guide edge 2032 is arranged on the outer circular surface of the base plate 202, and the second arc groove 2031 is connected to the guide edge 2032. When the manipulated fiber filament 4 is output from the clamp 1, the two sides of the manipulated fiber filament 4 are guided by the first guide groove 102 and the second guide groove 203 respectively. When the support frame 2 is separated from the clamp 1, the bottom of the manipulated fiber filament 4 contacts the guide edge 2032, thereby guiding the manipulated fiber filament 4.

[0032] A protective cover 3 is provided at one end of the clamp 1 away from the therapeutic device, and the end of the protective cover 3 away from the clamp 1 is an arc surface. When the therapeutic device drives the device into the patient's body, the protective cover 3 arranged at the front end of the clamp 1 first contacts the patient's body. The arc surface arranged at the front end of the protective cover 3 can prevent the device from causing harm to the patient's body during movement.

[0033] The material of the protective cover 3 is silicone, which is a soft material and can prevent the device from scratching the patient's epidermis during movement.

[0034] During treatment, the endoscopic therapeutic instrument is operated to move the device to the patient's affected part, and the clamp 1 and the support frame 2 are closed. At this time, the device is in a curled state. The endoscopic therapeutic instrument is operated to transport the manipulated fiber filament 4 to the affected part through the sliding cavity. The manipulated fiber filament 4 is formed into a curved shape under the guiding action of the sliding cavity, and the leaflets are sutured by the tip of the manipulated fiber filament 4; after the suturing is completed, the therapeutic instrument is operated to push the support frame 2 to move toward the inner end of the clamp 1, and the clamp 1 is separated from the front end of the support frame 2, so that the first guide groove 102 and the second guide groove 203 are separated. At this time, the device is in an expanded state, and the manipulated fiber filament 4 is deformed only under the drive of the first guide groove 102. After extending from the clamp 1, the extension direction of the manipulated fiber filament 4 is perpendicular to the bottom surface of the clamp 1, and the manipulated fiber filament 4 is cut off, and the therapeutic instrument is operated to take out the device, so that the manipulated fiber filament 4 connected to the leaflets is fixed to the patient's affected part. At the same time, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0035] In summary, the transfemoral retrograde aortic valve leaflet antegrade clamping device is very small in size, and physicians can use the device to perform minimally invasive surgery with high safety, low operating difficulty, good treatment effect, low cost, and low learning difficulty, thereby saving patients' lives.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transfemoral retrograde aortic valve leaflet anterior clamping device, characterized in that: The invention comprises a clamp, a support frame and a manipulation fiber, wherein one end of the clamp is connected to an endoscopic therapeutic instrument, and a plurality of first guide grooves are provided on the clamp, and the first guide grooves are evenly arranged along the circumferential direction with the axis of the clamp as the center; A guide hole is provided on the clamp along the axis, the support frame is slidably connected to the guide hole, and the support frame is connected to the endoscopic therapeutic instrument, a plurality of second guide grooves are provided on the support frame, and each of the second guide grooves corresponds to the first guide groove, and the first guide groove and the second guide groove form a sliding cavity; The manipulation fiber thread is arranged in the sliding cavity, and the manipulation fiber thread is used to sew the leaflet. The first guide groove includes a first arc groove, a straight hole and a straight groove. The direction of the straight hole is the same as the axis of the clamp. The straight hole, the first arc groove and the straight groove are connected end to end in sequence, and there is a certain angle between the axis of the straight groove and the axis of the straight hole. The angle between the axis of the straight hole and the axis of the straight groove is 0°-30°. The support frame includes a guide rod and a base plate. The base plate is arranged at one end of the guide rod, and the guide rod is perpendicular to the base plate. The guide rod is slidably matched with the guide hole. The second guide groove is arranged on the base plate, and the number of the second guide groove is the same as that of the first guide groove.

2. The device for retrograde aortic valve leaflet closure via the femoral artery according to claim 1, characterized in that: The number of the first guide grooves is at least three.

3. The device for retrograde aortic valve leaflet closure via the femoral artery according to claim 1, characterized in that: The second guide groove includes a second arc groove and a guide edge, the second arc groove is arranged on the top surface of the bottom plate, the guide edge is arranged on the outer circumferential surface of the bottom plate, and the second arc groove is connected to the guide edge.

4. The device for retrograde aortic valve leaflet closure via the femoral artery according to claim 1, characterized in that: A protective cover is arranged at one end of the clamp away from the therapeutic apparatus, and one end of the protective cover away from the clamp is an arc surface.

5. The device for retrograde aortic valve leaflet closure via the femoral artery according to claim 4, characterized in that: The material of the protective cover is silicone.

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