Adjustable electrotome pen suitable for endoscopic surgery

Abstract

The utility model relates to an adjustable electric knife pen suitable for endoscopic surgery. Comprising a shell, a first cavity fixedly formed in the shell, a first sliding groove fixedly formed in the first cavity, a first limiting mechanism arranged on the first sliding groove in a sliding mode, a second sliding groove fixedly formed in the first cavity, an adjusting mechanism arranged on the first cavity and the second sliding groove in a sliding mode, and an electric control mechanism fixedly arranged on the shell. The adjusting mechanism comprises a base arranged on the first cavity and the second sliding groove in a sliding mode, a first connecting rod fixedly arranged on the base, a second connecting rod arranged on the first connecting rod in a sliding mode, a second limiting assembly fixedly arranged on the first connecting rod and the second connecting rod, and a rotating assembly fixedly arranged on the first connecting rod and the second connecting rod. The problem that a knife head of an existing electric knife pen cannot rotate is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and in particular to an adjustable electric knife pen suitable for endoscopic surgery. Background Art

[0002] Neuroendoscope is a tool for observation and operation during neurosurgery. Endoscopic surgery can remove the diseased tissue in the human body's cavity when it is small. It has the advantage of early minimally invasive surgery and irreplaceable superiority in the treatment of diseased tissue in the patient's cavity. It is the development direction of foreign body removal and diseased tissue removal in the human cavity. At present, endoscopic surgery mostly uses an electric knife pen to remove diseased tissue. The electric knife pen cuts the patient's surgical site through the electrode head. The tip of the surgical electrode heats up when the power is turned on and acts on the affected part of the body, causing the vascular tissue at the patient's lesion to gradually become ossified and atrophy, thereby achieving the cutting and hemostasis of the body tissue. Due to its advantages such as less damage to tissue and good hemostasis effect, the electric knife pen is widely used in minimally invasive surgeries such as open surgery and various laparoscopic surgeries.

[0003] When cutting some parts, in order to facilitate cutting, the doctor needs to adjust the pen holding posture and the cutting angle, but the existing electric knife pen blade is cylindrical and cannot be bent. The doctor can only replace the blade of different shapes for cutting, which is very inconvenient. Utility Model Content

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide an adjustable electric surgical pen suitable for endoscopic surgery, including a shell, a first cavity fixed on the shell, a first slide groove fixed on the first cavity, a first limiting mechanism slidably arranged on the first slide groove, a second slide groove fixed on the first cavity, an electric control mechanism fixed on the shell, and an adjustment mechanism slidably arranged on the first cavity and the second slide groove; the adjustment mechanism includes a base slidably arranged on the first cavity and the second slide groove, a first connecting rod fixed on the base, a second connecting rod slidably arranged on the first connecting rod, a second limiting assembly fixed on the first connecting rod and the second connecting rod, and a rotating assembly fixed on the first connecting rod and the second connecting rod. The first limiting mechanism is used to adjust and limit the length of the electric surgical pen; the electric control mechanism is used to control the working state of the electric surgical pen; the adjusting mechanism is used for the rotation angle of the cutting head of the electric surgical pen; the base can slide on the first cavity and the second slide groove, thereby driving the first connecting rod and the second connecting rod to move and adjust the length of the electric surgical pen; a protrusion is provided on the first connecting rod to limit the installation direction of the second connecting rod to prevent the cutting head from being facing the wrong direction when the second connecting rod is installed; the second limiting assembly fixes the second connecting rod to facilitate the replacement and fixation of different cutting heads; the rotating assembly is used to adjust the rotation angle of the cutting head of the electric surgical pen.

[0006] Specifically, the first limiting mechanism includes a first limiting plate slidably arranged on the first slide groove, and a second limiting plate fixedly arranged on the base; the first limiting plate and the shell are connected by a first spring. The first limiting plate is provided with teeth; the second limiting plate is provided with teeth; the first spring is a compression spring; in the initial state, the first limiting plate and the second limiting plate are meshed with each other, when the base is pushed to slide, the second limiting plate squeezes the first limiting plate, so that the first limiting plate slides on the first slide groove, and the first spring is compressed, at which time the first limiting plate and the second limiting plate are not meshed, after moving a certain distance, the first spring pushes the tooth valley on the first limiting plate and the tooth top on the second limiting plate to re-engage, and the first limiting plate limits the second limiting plate, that is, limits the length of the first connecting rod and the second connecting rod extending out.

[0007] Specifically, the electric control mechanism includes a button fixed on the housing, a plug fixed on the housing, and a lighting lamp fixed on the housing. The button is used to control the operation of the electric knife pen; the plug is connected to the neuroendoscope; and the lighting lamp is used to provide lighting.

[0008] Specifically, the second limiting assembly includes a third slide groove fixed on the first connecting rod, a limiting groove fixed on the second connecting rod, and a limiting head slidably arranged on the third slide groove; the limiting head and the first connecting rod are connected by a second spring. The second spring is a compression spring; when the second connecting rod needs to be installed, the second connecting rod is sleeved on the first connecting rod, and a protrusion is provided on the first connecting rod to prevent the second connecting rod from being installed in the wrong direction. During installation, the second connecting rod squeezes the limiting head so that the limiting head retracts into the third slide groove, and the second spring is compressed. When the second connecting rod slides to the bottom of the slide groove of the first connecting rod, the limiting groove aligns with the limiting head, and the second spring pushes the limiting head into the limiting groove to complete the fixing and limiting of the second connecting rod.

[0009] Specifically, the rotating assembly includes a rotating shaft fixed on the base, a winding wheel rotatably mounted on the rotating shaft, a bracket fixed on the second connecting rod, a cutter head rotatably mounted on the bracket, a ball rolling on the cutter head, a first traction rope wound on the winding wheel and passing through the base and the first connecting rod, a second traction rope fixed on the cutter head and passing through the second connecting rod, and a fourth slide groove fixed on the first connecting rod; the first traction rope and the second traction rope are connected by a magnet; the cutter head and the second connecting rod are connected by a hose. The part of the base that contacts both sides of the winding wheel is provided with a damping block for clamping the winding wheel. The winding wheel can only be rotated by pushing it hard; the winding wheel is rotatably sleeved on the rotating shaft and can rotate around the rotating shaft. A part of the winding wheel protrudes from the base, and a first traction rope is wound on both sides of the winding wheel; the winding wheel is connected to the base by a torsion spring; the cutter head can rotate on the bracket, and the rotation angle is controlled by the winding wheel. The cutter head and the bracket are connected by a torsion spring; the hose is a corrugated tube and can be bent and stretched to a certain extent; in the initial state, the first traction rope and the second traction rope are disconnected, and the cutter head and the bracket are 90 degrees. The magnet on the first traction rope is located in the fourth slide groove, close to the end face of the first connecting rod. When the second connecting rod is installed, the magnet on the first traction rope will attract the magnet on the second traction rope. The rotating winding wheel controls the first traction rope and the second traction rope, thereby controlling the rotation angle of the cutter head.

[0010] The beneficial effects of the utility model are:

[0011] (1) The blade head of the electric knife pen of the utility model can rotate, and the rotation angle of the blade head is controlled by the winding wheel during use, thereby solving the problem that the blade head of the existing electric knife pen cannot rotate.

[0012] (2) The length of the electric knife pen can be adjusted, making the electric knife pen more versatile.

[0013] (3) The electric knife pen can be replaced with blades of different shapes to meet different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0015] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0016] In the attached picture:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 for Figure 2 Partial line section of AA;

[0020] Figure 4 for Figure 3 Linear section of the middle BB;

[0021] Figure 5 It is a partial structural schematic diagram of the utility model;

[0022] Figure 6 for Figure 5 Line section of CC. DETAILED DESCRIPTION

[0023] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0024] It should also be noted that, for ease of description, only the parts related to the relevant utility model are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0025] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0026] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0027] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0028] Reference Figure 1-6 As shown, the utility model describes an adjustable electric surgical pen suitable for endoscopic surgery, comprising a shell 1, a first cavity 2 fixed on the shell, a first slide groove 3 fixed on the first cavity, a first limiting mechanism 4 slidably arranged on the first slide groove, a second slide groove 5 fixed on the first cavity, an electric control mechanism 6 fixed on the shell, and an adjusting mechanism 7 slidably arranged on the first cavity and the second slide groove; the adjusting mechanism comprises a base 71 slidably arranged on the first cavity and the second slide groove, a first connecting rod 72 fixed on the base, a second connecting rod 73 slidably arranged on the first connecting rod, a second limiting assembly 74 fixedly arranged on the first connecting rod and the second connecting rod, and a rotating assembly 75 fixedly arranged on the first connecting rod and the second connecting rod.

[0029] Specifically, the first limiting mechanism includes a first limiting plate 41 slidably disposed on the first sliding groove and a second limiting plate 42 fixedly disposed on the base; the first limiting plate and the housing are connected via a first spring 43 .

[0030] Specifically, the electric control mechanism includes a button 61 fixed on the housing, a plug 62 fixed on the housing, and a lighting lamp 63 fixed on the housing.

[0031] Specifically, the second limiting assembly includes a third slide groove 741 fixed on the first connecting rod, a limiting groove 742 fixed on the second connecting rod, and a limiting head 743 slidably arranged on the third slide groove; the limiting head and the first connecting rod are connected by a second spring 744.

[0032] Specifically, the rotating assembly includes a rotating shaft 751 fixed on the base, a winding wheel 752 rotatably mounted on the rotating shaft, a bracket 753 fixed on the second connecting rod, a cutting head 754 rotatably mounted on the bracket, a ball 755 rolling on the cutting head, a first traction rope 756 wound on the winding wheel and passing through the base and the first connecting rod, a second traction rope 757 fixed on the cutting head and passing through the second connecting rod, and a fourth slide groove 758 fixed on the first connecting rod; the first traction rope and the second traction rope are connected by a magnet 759; the cutting head and the second connecting rod are connected by a hose 750.

[0033] In the initial state, the first traction rope and the second traction rope are disconnected, the cutter head and the bracket are at 90 degrees, and the magnet on the first traction rope is located in the fourth slide groove, close to the end face of the first connecting rod.

[0034] When in use, first install the second connecting rod, align the second connecting rod with the first connecting rod, and insert the second connecting rod. A protrusion is provided on the first connecting rod to prevent the second connecting rod from being installed in the wrong direction. During installation, the second connecting rod squeezes the limit head to retract the limit head into the third sliding groove, and the second spring is compressed. When the second connecting rod slides to the bottom of the first connecting rod sliding groove, the limit groove is aligned with the limit head. At this time, the second spring pushes the limit head into the limit groove to complete the fixation and limitation of the second connecting rod. At this time, the magnet on the first traction rope will attract the magnet on the second traction rope, and the first traction rope and the second traction rope are connected. Then, the plug is inserted into the neuroendoscope, and then the winding wheel is rotated to reel in the first traction rope, and the torsion spring on the winding wheel is twisted, and the first traction rope is reeled in, so that the magnet slides on the fourth sliding groove, thereby driving the second traction rope to move. The other end of the second traction rope is connected to the cutter head, thereby driving the cutter head to rotate on the bracket, thereby realizing the function of adjusting the angle of the cutter head. In addition, the base can be pushed to adjust the length of the first connecting rod and the second connecting rod extending out of the shell, thereby realizing the function of adjusting the length of the electric knife pen. The base can be pushed, and the base drives the first connecting rod and the second connecting rod to move. When the base moves, the first spring is compressed, and the first limit plate and the second limit plate are not engaged at this time. After moving a certain distance, the first spring pushes the tooth valley on the first limit plate and the tooth top on the second limit plate to re-engage, and the first limit plate limits the second limit plate, that is, limits the length of the first connecting rod and the second connecting rod extending out.

[0035] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned utility model concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) to form a technical solution.

Claims

1. An adjustable electrosurgical pen suitable for endoscopic surgery, characterized by: The invention comprises a shell (1), a first cavity (2) fixed on the shell, a first slide groove (3) fixed on the first cavity, a first limit mechanism (4) slidably arranged on the first slide groove, a second slide groove (5) fixed on the first cavity, an electric control mechanism (6) fixed on the shell, and an adjustment mechanism (7) slidably arranged on the first cavity and the second slide groove; the adjustment mechanism comprises a base (71) slidably arranged on the first cavity and the second slide groove, a first connecting rod (72) fixed on the base, a second connecting rod (73) slidably arranged on the first connecting rod, a second limit assembly (74) fixed on the first connecting rod and the second connecting rod, and a rotating assembly (75) fixed on the first connecting rod and the second connecting rod.

2. The adjustable electrosurgical pen suitable for endoscopic surgery according to claim 1, characterized in that: The first limiting mechanism comprises a first limiting plate (41) slidably arranged on the first sliding groove and a second limiting plate (42) fixedly arranged on the base; the first limiting plate and the housing are connected via a first spring (43).

3. The adjustable electrosurgical pen suitable for endoscopic surgery according to claim 1, characterized in that: The electric control mechanism comprises a button (61) fixedly arranged on the housing, a plug (62) fixedly arranged on the housing, and a lighting lamp (63) fixedly arranged on the housing.

4. The adjustable electrosurgical pen suitable for endoscopic surgery according to claim 1, characterized in that: The second limiting assembly comprises a third sliding groove (741) fixedly arranged on the first connecting rod, a limiting groove (742) fixedly arranged on the second connecting rod, and a limiting head (743) slidably arranged on the third sliding groove; the limiting head and the first connecting rod are connected via a second spring (744).

5. The adjustable electrosurgical pen suitable for endoscopic surgery according to claim 1, characterized in that: The rotating assembly includes a rotating shaft (751) fixed on the base, a winding wheel (752) rotatably mounted on the rotating shaft, a bracket (753) fixed on the second connecting rod, a cutter head (754) rotatably mounted on the bracket, a ball (755) rolling on the cutter head, a first traction rope (756) wound on the winding wheel and passing through the base and the first connecting rod, a second traction rope (757) fixed on the cutter head and passing through the second connecting rod, and a fourth sliding groove (758) fixed on the first connecting rod; the first traction rope and the second traction rope are connected by a magnet (759); the cutter head and the second connecting rod are connected by a hose (750).

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