A multifunctional digging knife for cutting myocardium

Abstract

The present invention discloses a multifunctional myocardial excision knife, belonging to the field of medical equipment technology. The knife comprises a front end that is generally arc-shaped, with two sides that are concave inward with a certain curvature, forming a three-sided blade structure. The rear end of the knife is provided with an opening that forms a channel for the excised myocardial tissue to be discharged. A cover plate is provided on the top of the knife. A handle is connected to the cover plate for controlling the knife. The knife can be rotated to achieve cutting in different directions. The knife is equipped with an endoscope for observing the myocardium at the cutting site. This invention helps improve surgical efficiency, reduce surgical risks and difficulty, and alleviate the workload of medical staff.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment, and in particular relates to a multifunctional digging knife for cutting myocardium. Background Art

[0002] Currently, doctors use scalpels to perform myocardial resection, which requires high experience and skills of the doctors, and the operation is inefficient and risky. Summary of the Invention

[0003] In order to solve the above problems, the present invention adopts the following technical solutions:

[0004] A multifunctional digging knife for cutting myocardium, comprising:

[0005] The front end of the digging knife is generally arc-shaped, and the two sides are concave inward with a certain curvature, forming a three-sided blade structure; the rear end of the digging knife is provided with an opening to form a channel for the discharge of the cut myocardial tissue, and the upper part of the digging knife is provided with a cover plate;

[0006] A handle is connected to the cover plate and is used to control the digging knife.

[0007] Furthermore, one end of the cover plate is aligned with the rear end of the digging knife, and the other end is at a certain distance from the front end of the digging knife, and the handle is installed on the cover plate.

[0008] Furthermore, the cover plate is provided with an endoscope with a light source for observing the myocardial tissue in the cutting direction, and the endoscope is connected to the computer via a connecting wire.

[0009] Furthermore, it also includes:

[0010] An escapement shaft, wherein the first end of the escapement shaft is fixed to the cover plate, the second end is a free end, and a limiting ring is provided at the end of the second end.

[0011] Furthermore, one end of the handle is slidably arranged on the first end of the escapement shaft, a locking groove is provided on the cover plate, and a locking platform is provided on the side of the handle close to the cover plate to cooperate with the locking groove, and a compression spring is provided on the escapement shaft, and the compression spring is located between the handle and the limit ring.

[0012] Furthermore, the locking platform includes four protrusions, which are evenly distributed along the circumference of the escapement shaft and are located on the handle, and the locking groove is arranged in cooperation with the four protrusions.

[0013] Furthermore, the blade of the digging knife is sawtooth-shaped.

[0014] Beneficial effects:

[0015] The present invention helps to improve surgical efficiency, reduce surgical risks and difficulty, and at the same time alleviate the labor intensity of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the multifunctional digging knife for cutting myocardium of the present invention;

[0017] Figure 2 It is a partial schematic diagram of the multifunctional digging knife for cutting the myocardium of the present invention.

[0018] Among them, 1. digging knife; 11. blade; 12. cover plate; 13. opening; 14. wire; 2. handle; 3. endoscope; 4. escapement shaft; 5. compression spring; 6. locking platform; 7. locking slot. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] Example 1

[0025] refer to Figure 1-Figure 2 , a multifunctional digging knife for cutting myocardium, comprising:

[0026] The front end of the digging knife 1 is generally arc-shaped, and the two sides are concave inward with a certain curvature, forming a structure of three-sided blades 11; the rear end of the digging knife 1 is provided with an opening 13, forming a channel for the discharge of the cut myocardial tissue, and the upper part of the digging knife 1 is provided with a cover plate 12;

[0027] The handle 2 is connected to the cover plate 12 and is used to control the digging blade 1.

[0028] The present invention facilitates cutting by forming three blades 11 at the front end and both sides of the digging knife. An opening is provided at the rear end of the digging knife to discharge the cut myocardial tissue.

[0029] Preferably, the opening is a rectangular opening.

[0030] In this embodiment, one end of the cover plate 12 is aligned with the rear end of the digging blade 1 , and the other end is at a certain distance from the front end of the digging blade 1 for cutting limit. The handle 2 is installed on the cover plate 12 .

[0031] In specific implementation, the distance between the front end of the cover plate and the three blades of the digging knife is used to control the thickness and width of the cut myocardium to ensure that the thickness of the cut myocardium does not exceed this size.

[0032] In this embodiment, the cover plate 12 is provided with an endoscope 3 with a light source for observing the myocardial tissue in the cutting direction. The myocardial tissue in the cutting direction can be observed at any time. The endoscope 3 is connected to the computer via a connecting wire 14.

[0033] During specific implementation, a wire channel is provided on the handle 2 , and the connecting wire 14 is passed through the wire channel.

[0034] In this embodiment, it also includes:

[0035] The escapement shaft 4 has a first end fixed to the cover plate 12 and a second end which is a free end and a limiting ring is provided at the end of the second end.

[0036] In this embodiment, one end of the handle 2 is slidably arranged on the first end of the escapement shaft 4, a locking groove 7 is provided on the cover plate 12, and a locking platform 6 is provided on the side of the handle 2 close to the cover plate 12 to cooperate with the locking groove 7. A compression spring 5 is sleeved on the escapement shaft 4, and the compression spring 5 is located between the handle 2 and the limit ring.

[0037] In this embodiment, the locking platform 6 includes four protrusions, which are evenly distributed along the circumference of the escapement shaft 4 and are located on the handle 2. The locking groove 7 is provided in cooperation with the four protrusions.

[0038] In specific implementation, the digging knife can rotate 360 degrees and lock a position every 90 degrees, so that different cutting actions such as back digging, front shoveling, left digging and right digging can be achieved.

[0039] In specific implementation, the escapement can control the rotational position between the digging blade and the handle through the compression spring. After the locking platform on the handle is aligned with the locking groove on the cover plate, the handle and the digging blade can be fixed by relying on the compression force of the compression spring.

[0040] In this embodiment, the blade 11 of the digging knife 1 is serrated, so that the myocardium can be easily cut without applying much force.

[0041] During specific implementation, the digging knife 1 enters the heart through the aortic root and the valve, and the front edge of the digging knife 1 presses and cuts toward the myocardium. The cover plate 12 limits the cutting depth, and the cut tissue is discharged through the rear opening 13 of the digging knife 1.

[0042] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A multifunctional myocardial cutting knife, characterized in that: include: The front end of the digging knife is generally arc-shaped, and the two sides are concave inward with a certain curvature, forming a three-sided blade structure; the rear end of the digging knife is provided with an opening to form a channel for the discharge of the cut myocardial tissue, and the upper part of the digging knife is provided with a cover plate; A handle connected to the cover plate for manipulating the digging blade, one end of the cover plate being aligned with the rear end of the digging blade, and the other end being a certain distance away from the front end of the digging blade, and the handle being mounted on the cover plate; An escapement shaft, wherein the first end of the escapement shaft is fixed to the cover plate, the second end is a free end, and a limit ring is provided at the end of the second end; One end of the handle is slidably arranged on the first end of the escapement shaft, a locking groove is provided on the cover plate, a locking platform is provided on the side of the handle close to the cover plate and is matched with the locking groove, a compression spring is sleeved on the escapement shaft, and the compression spring is located between the handle and the limiting ring; The locking platform includes four protrusions, which are evenly distributed along the circumference of the escapement shaft and are located on the handle. The locking groove is arranged in cooperation with the four protrusions.

2. The multifunctional myocardial cutting knife according to claim 1, characterized in that: The cover plate is provided with an endoscope with a light source for observing the myocardial tissue in the cutting direction. The endoscope is connected to the computer via a connecting wire.

3. The multifunctional myocardial cutting knife according to claim 1, characterized in that: The blade of the digging knife is sawtooth-shaped.

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