Angle-adjustable electric knife pen

Abstract

The utility model provides an angle-adjustable electric knife pen which comprises a clamping body, a pen body, a connecting rod and a knife rod, and the clamping body is connected with one end of the pen body. And the connecting rod is movably mounted in the clamping body. And one end of the cutter bar is connected with one end of the connecting rod. And a first gear is arranged on the connecting rod. A first gear cavity used for installing a first gear is formed in the clamping body, and a second gear cavity is formed above the first gear cavity. The top of the second gear cavity is open. And a second gear is movably mounted in the second gear cavity, and the second gear is meshed with the first gear. The second gear is rotated to drive the connecting rod and the cutter bar mounted on the connecting rod to rotate, so that the angle of the cutter point of the cutter bar is adjusted to adapt to various use scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an electric knife pen with adjustable angle. Background Art

[0002] The electrosurgical pen is an electrosurgical device that replaces mechanical scalpels for tissue cutting and has been widely used in surgical operations for more than 90 years. The electrosurgical pen has the advantages of rapid hemostasis, less bleeding, prevention of bacterial infection, and good postoperative healing of patients.

[0003] However, while it is convenient for surgical hemostasis and improves surgical speed and efficiency, it also has limitations. It is not convenient to adjust the angle of the blade tip of the knife rod, and usually the pen body needs to be manually rotated to adjust the angle of the blade tip. Since the outer diameter of the electric knife pen is small, the rotation angle is too large when the pen body is rotated, which is not convenient for precise adjustment of the blade tip angle at a small angle. Utility Model Content

[0004] The utility model aims to provide an electric knife pen with adjustable angle, which can solve the problem that it is inconvenient for medical staff to adjust the knife tip angle of the electric knife pen.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] An electric surgical pen with adjustable angle comprises a clamping body, a pen body, a connecting rod and a knife rod, wherein the clamping body is connected to one end of the pen body. The connecting rod is movably mounted in the clamping body. One end of the knife rod is connected to one end of the connecting rod. A first gear is arranged on the connecting rod. A first gear cavity for mounting the first gear is provided inside the clamping body, and a second gear cavity is provided above the first gear cavity. The top of the second gear cavity is open. A second gear is movably mounted in the second gear cavity, and the second gear meshes with the first gear. When the second gear rotates, the connecting rod and the knife rod mounted on the connecting rod are driven to rotate, thereby adjusting the angle of the knife tip of the knife rod.

[0007] Preferably, damping pads are installed on the inner walls on both sides of the first gear cavity.

[0008] Preferably, a first conductive core shaft is installed inside the clamping body, and a first axial hole for installing a knife rod is arranged inside the first conductive core shaft.

[0009] Preferably, a first conductive spring is provided on the inner wall of the first axial hole.

[0010] Preferably, a second conductive core shaft is disposed inside the pen body, and a connecting cavity for connecting to the first conductive core shaft is provided at one end of the second conductive core shaft close to the first conductive core shaft.

[0011] Preferably, a second conductive spring is provided on the inner wall of the connecting cavity.

[0012] Preferably, the connecting rod comprises a conductive rod and a hollow tube wrapped around the conductive rod, and one end of the conductive rod extends out of the hollow tube and is connected to the first conductive spring.

[0013] Preferably, an arc surface groove connected to the knife rod is provided at one end of the conductive rod away from the first conductive spring.

[0014] Preferably, the knife rod comprises a metal rod and an insulating shell wrapped around the metal rod. The insulating shell extends out of one end of the metal rod close to the connecting rod.

[0015] Preferably, a clamping sleeve is provided at one end of the insulating shell close to the connecting rod.

[0016] The utility model drives the connecting rod and the knife rod installed on the connecting rod to rotate by rotating the second gear, thereby adjusting the knife tip angle of the knife rod to adapt to various usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of an electric knife pen with adjustable angle.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the connecting rod.

[0019] Figure 3 for Figure 2 Schematic diagram of the internal structure of the middle connecting rod.

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the middle knife bar.

[0021] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0022] The following are the descriptions of the reference numerals:

[0023] 1: clamping body, 2: pen body, 3: connecting rod, 4: knife rod, 11: first gear groove, 12: second gear groove, 13: second gear, 14: first conductive core shaft, 21: second conductive core shaft, 31: first gear, 32: hollow cylinder, 33: conductive rod, 41: metal rod, 42: insulating shell, 111: damping pad, 211: connecting cavity, 141: first axial hole, 331: arc surface groove, 421: snap-on sleeve, 1411: first conductive spring, 2111: second conductive spring. DETAILED DESCRIPTION

[0024] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0025] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand the advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0026] Embodiment 1

[0027] The utility model drives the connecting rod and the knife rod installed on the connecting rod to rotate by rotating the second gear, thereby adjusting the knife tip angle of the knife rod to adapt to various usage scenarios.

[0028] like Figure 1 As shown, an angle-adjustable electric knife pen comprises a clamping body 1, a pen body 2, a connecting rod 3 and a knife bar 4, wherein the clamping body 1 is connected to one end of the pen body 2. The connecting rod 3 is movably mounted in the clamping body 1. One end of the knife bar 4 is connected to one end of the connecting rod 3. A first gear 31 is arranged on the connecting rod 3. A first gear cavity 11 for mounting the first gear 31 is provided inside the clamping body 1, and a second gear cavity 12 is provided above the first gear cavity 11. The top of the second gear cavity 12 is open; a second gear 13 is movably mounted in the second gear cavity 12, the second gear 13 is meshed with the first gear 31, and the top of the second gear 13 protrudes from the top opening of the second gear cavity 12, so that medical staff can slide it. When the second gear 13 rotates, the connecting rod 3 and the knife bar 4 mounted on the connecting rod 3 are driven to rotate, thereby adjusting the tip angle of the knife bar 4.

[0029] Furthermore, damping pads 111 are installed on the inner walls of both sides of the first gear cavity 11. When the first gear 31 rotates, the two sides and the damping pads 11 generate friction to hinder the rotation of the first gear 31, thereby preventing the first gear 31 from rotating easily when the medical staff accidentally touches the second gear 13.

[0030] Furthermore, a first conductive core shaft 14 is installed inside the clamping body 1. A first axial hole 141 for installing the knife rod 4 is provided inside the first conductive core shaft 14. Figure 5As shown, further, a first conductive spring 1411 is disposed on the inner wall of the first shaft hole 141. The first conductive spring 1411 has elastic deformation and can squeeze the outer wall of the conductive rod 33 to ensure that the first conductive core shaft 14 is electrically connected to the conductive rod 33.

[0031] Furthermore, a second conductive core shaft 21 is disposed inside the pen body 2 . A connecting cavity 211 for connecting to the first conductive core shaft 14 is formed at one end of the second conductive core shaft 21 close to the first conductive core shaft 14 .

[0032] Furthermore, a second conductive spring 2111 is disposed on the inner wall of the connection cavity 211. The second conductive spring 2111 is elastically deformable and can press the outer wall of the first conductive core shaft 14 to ensure that the first conductive core shaft 14 is electrically connected to the second conductive core shaft 21.

[0033] like Figure 2-3 As shown, further, the connecting rod 3 includes a conductive rod 33 and a hollow cylinder 32 wrapped outside the conductive rod 33, and one end of the conductive rod 33 extends out of the hollow cylinder 32 and is connected to the first conductive spring 1411. The other end of the conductive rod 33 is located in the hollow cylinder 32 to prevent medical staff from accidentally touching and being shocked.

[0034] Furthermore, the end of the conductive rod 33 away from the first conductive spring 1411 is provided with an arc groove 331 connected to the knife rod 4. The arc groove 331 has a large contact area and can better connect with one end of the metal rod 41 described below, ensuring that the conductive rod 33 is electrically connected to the metal rod 41.

[0035] like Figure 4 As shown, further, one end of the knife rod 4 is installed in the hollow cylinder 32, and the knife rod 4 includes a metal rod 41 and an insulating shell 42 wrapped around the outside of the metal rod 41. The insulating shell 42 extends from the end of the metal rod 41 close to the connecting rod 3 and is connected to the arc groove 331 mentioned above. Further, a clamping sleeve 421 is provided at the end of the insulating shell 42 close to the connecting rod 3. The function of the clamping sleeve 421 is to squeeze the inner wall of the hollow cylinder 32 when the knife rod 4 is installed in the hollow cylinder 32, so that the knife rod 4 is more firmly installed in the hollow cylinder 32.

[0036] Working principle:

[0037] The medical staff rotates the second gear 13, driving the first gear 31 on the outer wall of the hollow cylinder 32 to rotate, thereby driving the connecting rod 3 to rotate as a whole. Since one end of the knife rod 4 is installed in the hollow cylinder 32, it also rotates with the overall rotation of the connecting rod 3, and the angle of the knife tip of the knife rod 4 is adjusted, that is, the angle of the knife tip of the knife rod 4 changes.

[0038] In the description of the present invention, it should be understood that the terms "middle", "length", "up", "down", "front", "back", "vertical", "horizontal", "inside", "outside", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present invention.

[0039] In the present invention, unless otherwise clearly specified and limited, the first feature "on" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. "Multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The above is only for explaining the implementation mode of the utility model and is not used to limit the utility model. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the utility model without creative work should be included in the protection scope of the utility model.

Claims

1. An angle-adjustable electric knife pen, comprising a clamping body (1), a pen body (2), a connecting rod (3) and a knife rod (4), wherein the clamping body (1) is connected to one end of the pen body (2); the connecting rod (3) is movably mounted in the clamping body (1); one end of the knife rod (4) is connected to one end of the connecting rod (3); and the characteristics are as follows: The connecting rod (3) is provided with a first gear (31); a first gear cavity (11) for mounting the first gear (31) is provided inside the clamping body (1), and a second gear cavity (12) is provided above the first gear cavity (11); the top of the second gear cavity (12) is open; a second gear (13) is movably mounted in the second gear cavity (12), and the second gear (13) and the first gear (31) are meshed with each other; when the second gear (13) rotates, the connecting rod (3) and a knife bar (4) mounted on the connecting rod (3) are driven to rotate, thereby adjusting the tip angle of the knife bar (4).

2. The angle-adjustable electric knife pen according to claim 1, characterized in that: Damping pads (111) are installed on inner walls on both sides of the first gear chamber (11).

3. The angle-adjustable electric knife pen according to claim 1, characterized in that: A first conductive core shaft (14) is installed inside the clamping body (1); a first axial hole (141) for installing a knife rod (4) is provided inside the first conductive core shaft (14).

4. The angle-adjustable electric knife pen as claimed in claim 3, characterized in that: A first conductive spring (1411) is provided on the inner wall of the first shaft hole (141).

5. The angle-adjustable electric knife pen according to claim 1, characterized in that: A second conductive core shaft (21) is arranged inside the pen body (2); and a connection cavity (211) for connecting to the first conductive core shaft (14) is provided at one end of the second conductive core shaft (21) close to the first conductive core shaft (14).

6. The angle-adjustable electric knife pen as claimed in claim 5, characterized in that: A second conductive spring (2111) is provided on the inner wall of the connecting cavity (211).

7. The angle-adjustable electric knife pen as claimed in claim 4, characterized in that: The connecting rod (3) comprises a conductive rod (33) and a hollow cylinder (32) wrapped around the outside of the conductive rod (33); one end of the conductive rod (33) extends out of the hollow cylinder (32) and is connected to the first conductive spring (1411).

8. The angle-adjustable electric knife pen as claimed in claim 7, characterized in that: An arc surface groove (331) connected to the knife rod (4) is provided at one end of the conductive rod (33) away from the first conductive spring sheet (1411).

9. The angle-adjustable electric knife pen according to claim 1, characterized in that: The knife rod (4) comprises a metal rod (41) and an insulating shell (42) wrapped around the outside of the metal rod (41); the insulating shell (42) extends out of one end of the metal rod (41) close to the connecting rod (3).

10. The angle-adjustable electric knife pen according to claim 9, characterized in that: A clamping sleeve (421) is provided at one end of the insulating shell (42) close to the connecting rod (3).

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