Valve leaflet distraction device for operative treatment of hypertrophic cardiomyopathy

Abstract

The utility model discloses a valve leaflet distraction device for operative treatment of hypertrophic cardiomyopathy, which relates to the technical field of medical instruments and comprises a fixing system, a base system and a retraction system. The fixing system is used for being connected with an operating bed, the base system is arranged at one end of the fixing system, and the multiple retraction systems are arranged on the base system; the retracting system comprises a retractor rod and a blade, one end of the retractor rod is connected with the base system, the blade is arranged at the other end of the retractor rod, and the blade is used for retracting an aortic valve opening. The valve leaflet distraction device for operative treatment of hypertrophic cardiomyopathy can be suitable for excision of various hypertrophic cardiomyopathy operations, effectively ensures that the valve is not damaged by traction in a narrow space, fully exposes an operative field, improves the quality and safety of the operation, and avoids the occurrence of operative complications.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a leaflet dilatation device for surgical treatment of hypertrophic cardiomyopathy. Background Technology

[0002] Hypertrophic cardiomyopathy (HCM) is a hereditary cardiomyopathy primarily characterized by sarcomere mutations. Its main features include left ventricular hypertrophy, decreased cardiac function, and arrhythmias. The hypertrophy of the myocardium leads to obstruction of the left ventricular outflow tract, resulting in symptoms such as chest tightness and shortness of breath, and in severe cases, death. Therefore, the primary goal of surgical treatment is to relieve the obstruction of the left ventricular outflow tract and remove a portion of the hypertrophic myocardium. This is considered the gold standard for surgical treatment of HCM. The main surgical procedure involves using the aortic valve orifice as the access route, crossing the aortic valve orifice to remove the subvalvular hypertrophic myocardium, thereby relieving the obstruction. Throughout the procedure, the surgeon can only observe and manipulate through the valve orifice, making the exposure of the valve orifice particularly crucial.

[0003] The current standard procedure involves using a regular retractor to pull the aortic valve orifice. During this process, an assistant needs to constantly adjust the position to cooperate with the surgeon, which makes the procedure complicated and can easily damage the valve leaflets, causing iatrogenic injury. Summary of the Invention

[0004] The purpose of this invention is to provide a leaflet dilation device for surgical treatment of hypertrophic cardiomyopathy, so as to solve the problems existing in the prior art, improve the quality and safety of the operation, and avoid the occurrence of surgical complications.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This invention provides a valve leaflet dilation device for surgical treatment of hypertrophic cardiomyopathy, comprising a fixation system, a base system, and a retraction system; the fixation system is used to connect to an operating table, the base system is disposed at one end of the fixation system, and a plurality of retraction systems are disposed on the base system; the retraction system includes a hook rod and a blade, one end of the hook rod is connected to the base system, and the blade is disposed at the other end of the hook rod, the blade being used to retract the aortic valve orifice.

[0007] Optionally, the fixation system includes a fixation bracket, a fixation base, and a serpentine arm; the lower part of the fixation bracket is used to connect to the operating table, the top of the fixation bracket is provided with the fixation base, the fixation base is connected to one end of the serpentine arm, and the other end of the serpentine arm is connected to the base system.

[0008] Optionally, the lower part of the fixing bracket includes a pneumatic buckle or a threaded buckle.

[0009] Optionally, one end of the serpentine arm passes through the fixed base and is fixedly connected to the fixed base. Both ends of the serpentine arm are provided with a fixing structure, and the other end of the serpentine arm is provided with a self-locking structure, which is used to connect with the base system.

[0010] Optionally, the base system includes a rack with an arc-shaped structure, which is connected to the serpentine arm in the fixing system; the rack is provided with a plurality of hook bases, each hook base being connected to one end of a hook rod.

[0011] Optionally, the outer wall of the rack is provided with locking teeth, and the hook base is provided with a latch. One end of the latch is connected to the hook base, and the other end of the latch matches the locking teeth to position the hook base on the rack.

[0012] Optionally, the rack includes two arc-shaped structures connected by a hinge.

[0013] Optionally, a universal ball is provided on the hook base, one end of the hook rod passes through the universal ball, and a locking nut is provided on the hook base to fix the universal ball.

[0014] Optionally, a ball is rotatably provided at the other end of the hook rod, and the blade is connected to the ball.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] This invention relates to a valve leaflet dilation device for surgical treatment of hypertrophic cardiomyopathy. It is applicable to various surgical resections of hypertrophic cardiomyopathy and effectively solves the problem of ensuring that the valve is not pulled and damaged in a confined space while fully exposing the surgical field, thereby improving the quality and safety of the surgery and avoiding surgical complications. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a top view of the leaflet dilation device for surgical treatment of hypertrophic cardiomyopathy in this utility model.

[0019] Figure 2This is a side view of the leaflet opening device for surgical treatment of hypertrophic cardiomyopathy according to the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Fixing system; 2. Base system; 3. Pulling system; 11. Fixing bracket; 12. Fixing base; 13. Snake arm; 131. Fixing structure; 132. Self-locking structure; 21. Rack; 22. Hook base; 23. Hinge; 24. Lock; 25. Universal ball; 31. Hook rod; 32. Ball; 33. Blade. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 and 2 As shown, this embodiment provides a valve leaflet dilation device for surgical treatment of hypertrophic cardiomyopathy, including a fixation system 1, a base system 2, and a retraction system 3; the fixation system 1 is used to connect to the operating table, the base system 2 is disposed at one end of the fixation system 1, and three retraction systems 3 are disposed on the base system 2; the retraction system 3 includes a hook rod 31 and a blade 33, one end of the hook rod 31 is connected to the base system 2, and the blade 33 is disposed at the other end of the hook rod 31, and the blade 33 is used to retract the aortic valve orifice.

[0025] The device is fixed by connecting the fixation system 1 to the operating table, and the retraction system 3 can be adjusted to a suitable position for surgery. The leaflets 33 fully retract the aortic valve orifice without damaging the leaflets, and finally the aortic valve orifice is fully exposed, which facilitates the surgeon to perform the next step of surgery to remove the hypertrophic myocardium.

[0026] In this specific embodiment, the fixation system 1 includes a fixation bracket 11, a fixation base 12, and a snake arm 13; the lower part of the fixation bracket 11 is used to connect to the operating table, the top of the fixation bracket 11 is provided with the fixation base 12, the fixation base 12 is connected to one end of the snake arm 13, and the other end of the snake arm 13 is connected to the rack 21 in the base system 2.

[0027] The lower part of the fixing bracket 11 includes a pneumatic or threaded buckle. In use, the fixing bracket 11 is fixed to the operating table frame by pneumatic locking or manual tightening of the nut, and it can be used with different models of operating tables.

[0028] One end of the serpentine arm 13 passes through and is fixedly connected to the fixed base 12. Both ends of the serpentine arm 13 are equipped with fixing structures 131, and the other end of the serpentine arm 13 is equipped with a self-locking structure 132, which is used to connect to the base system 2. The serpentine arm 13 can be bent arbitrarily to meet the tension requirements of the base system 2, improving the flexibility of the device.

[0029] The serpentine arm 13 can specifically utilize the Medtronic TS2000 tissue fixation system.

[0030] The base system 2 includes a rack 21, which has an arc-shaped structure and is connected to the serpentine arm 13 in the fixing system 1. Multiple hook bases 22 are provided on the rack 21, each hook base 22 being connected to one end of a hook rod 31. In a more specific embodiment, the rack 21 includes two arc-shaped structures connected by a hinge 23, which allows the rack 21 to be folded.

[0031] In a more specific embodiment, the hook base 22 is provided with a square through hole, through which the rack 21 passes, thereby allowing the hook base 22 to slide on the rack 21.

[0032] The outer wall of the rack 21 is provided with locking teeth, and the hook base 22 is provided with a latch 24. One end of the latch 24 is connected to the hook base 22, and the other end of the latch 24 matches the locking teeth to position the hook base 22 on the rack 21. Furthermore, a torsion spring is provided between the latch 24 and the hook base 22. The torsion spring is used to press the other end of the latch 24 between the locking teeth, so that the hook base 22 can maintain a fixed position on the rack 21.

[0033] A universal ball 25 is provided on the hook base 22, and one end of the hook rod 31 passes through the universal ball 25. A locking nut is provided on the hook base 22 to fix the universal ball 25. The hook base 22 is provided with a threaded hole, and the locking nut is a hollow nut. The lower half of the outer wall of the locking nut is provided with external threads that match the threaded hole, and the upper half of the outer wall of the locking nut is hexagonal to facilitate the rotation of the locking nut. By tightening the locking nut, the locking nut presses against the universal ball 25, thereby locking the universal ball 25 and keeping the hook rod 31 at a fixed angle.

[0034] The other end of the hook rod 31 is rotatably equipped with a ball 32, and the blade 33 is connected to the ball 32. The ball 32 enables the blade 33 to rotate within a certain range, thereby realizing the adjustment of the angle of the blade 33 and enabling the blade 33 to adapt to the aortic valve orifice.

[0035] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] This specification uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A leaflet dilation device for surgical treatment of hypertrophic cardiomyopathy, characterized in that, It includes a fixation system, a base system, and a retraction system; the fixation system is used to connect to the operating table, the base system is disposed at one end of the fixation system, and multiple retraction systems are disposed on the base system; the retraction system includes a hook rod and a blade, one end of the hook rod is connected to the base system, and the blade is disposed at the other end of the hook rod, and the blade is used to retract the aortic valve orifice.

2. The leaflet dilatation device for surgical treatment of hypertrophic cardiomyopathy according to claim 1, characterized in that, The fixation system includes a fixation bracket, a fixation base, and a serpentine arm; the lower part of the fixation bracket is used to connect to the operating table, the top of the fixation bracket is provided with the fixation base, the fixation base is connected to one end of the serpentine arm, and the other end of the serpentine arm is connected to the base system.

3. The leaflet dilatation device for surgical treatment of hypertrophic cardiomyopathy according to claim 2, characterized in that, The lower part of the fixed bracket includes a pneumatic buckle or a threaded buckle.

4. The leaflet dilatation device for surgical treatment of hypertrophic cardiomyopathy according to claim 2, characterized in that, One end of the serpentine arm passes through the fixed base and is fixedly connected to the fixed base. Both ends of the serpentine arm are provided with a fixing structure, and the other end of the serpentine arm is provided with a self-locking structure, which is used to connect with the base system.

5. The leaflet dilatation device for surgical treatment of hypertrophic cardiomyopathy according to claim 1, characterized in that, The base system includes a rack with an arc-shaped structure, which is connected to a serpentine arm in the fixing system. The rack is provided with a plurality of hook bases, each of which is connected to one end of a hook rod.

6. The leaflet dilatation device for surgical treatment of hypertrophic cardiomyopathy according to claim 5, characterized in that, The outer wall of the rack is provided with locking teeth, and the hook base is provided with a latch. One end of the latch is connected to the hook base, and the other end of the latch matches the locking teeth to position the hook base on the rack.

7. The leaflet dilatation device for surgical treatment of hypertrophic cardiomyopathy according to claim 5, characterized in that, The rack includes two arc-shaped structures connected by a hinge.

8. The leaflet dilatation device for surgical treatment of hypertrophic cardiomyopathy according to claim 5, characterized in that, A universal ball is provided on the hook base, one end of the hook rod passes through the universal ball, and a locking nut is provided on the hook base to fix the universal ball.

9. The leaflet dilatation device for surgical treatment of hypertrophic cardiomyopathy according to claim 1, characterized in that, The other end of the hook rod is rotatably equipped with a sphere, and the blade is connected to the sphere.

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