High-frequency electrotome tip protection device and high-frequency electrotome

Abstract

The utility model relates to a high-frequency electrotome tip protection device which is characterized in that one end of each pull wire is connected with a moving rod, the other ends of the two moving rods are connected with a protection sleeve, and the other ends of the two pull wires sequentially penetrate through a branch limiting hole, a second limiting hole and a first limiting hole which are close to each other from bottom to top and then are fixedly connected to a pull wire fixing end; the middle parts of the two moving rods are connected in the respective channels in a sliding manner; the push rod is slidably connected into the through hole of the mounting seat, the linear distance between the pressed end of the push rod and the electrocoagulation switch is smaller than two centimeters, the other end of the push rod is sleeved with a tension spring, the two ends of the tension spring are fixedly connected to the end of the mounting seat and the end of the push rod respectively, and a first limiting hole is formed in the end, away from the electrocoagulation switch, of the push rod. The tip of the needle type electrotome is located in the protective sleeve, the sharp part of the electrotome does not need to be exposed before an electrocoagulation switch is pressed, and the sharp part of the electrotome is protected after the electrotome is used.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a high-frequency electric knife tip protection device and a high-frequency electric knife. Background Art

[0002] A high-frequency electrosurgical unit is an electrosurgical device used for tissue cutting. It can accurately cut tissue at low power and reduce tissue adhesion. It outputs high-frequency current through the tip of the surgical electrode to reach the human tissue, generating a large amount of heat where the tip of the electrode contacts the body, thereby directly cutting, stopping bleeding or cauterizing human tissue, making the operation easier to control. Compared with the use of traditional mechanical scalpels in clinical practice, the use of high-frequency electrosurgical units can greatly shorten the operation time, thereby greatly reducing the patient's blood loss and blood transfusion volume, and ultimately reducing the patient's surgical complications and surgical costs. High-frequency electrosurgical units are often applicable to a wider range of surgeries, and high-frequency scalpels are easier to enter the surgical site. They are not only easy to operate but also have a relatively reasonable performance-price ratio.

[0003] The tip of the tungsten needle electrode is extremely hard, pointed and sharp. The tip diameter is only 5 microns, and the exposed length is 3 mm. At present, the protection devices for the tip of the needle are all in the form of pushing out and retracting the protective cover. For example, the telescopic protection device that can be installed on the head end of the needle-type electric knife disclosed in Chinese utility model patent CN213430508U and the tip protector of the needle-type electric knife disclosed in Chinese utility model patent CN209332257U both expose the tip of the needle outside the protective cover and hide it inside the protective cover. In the above method, the pushing part and the electrocoagulation switch are far apart, and the protective cover needs to be pushed to expose the tip of the needle outside the protective cover. This extra step will make the electrocoagulation process cumbersome. After using the electric knife, the protective cover needs to be pushed again to hide the tip of the needle inside the protective cover. However, this operation is often ignored during the actual operation, making the protection device useless. Utility Model Content

[0004] The utility model aims to provide a high-frequency electric knife tip protection device. The electrocoagulation switch and the sliding part are pressed and operated by the same finger at the same time so that the high-frequency electric knife tip is exposed outside the protection device without performing other additional operations. When the finger releases the electrocoagulation switch, the sliding part is also automatically released, and the protection device automatically exceeds the sharp part of the high-frequency electric knife tip, thereby preventing the high-frequency electric knife tip from stabbing others.

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

[0006] A high-frequency electrosurgical knife tip protection device comprises an electrosurgical knife body, a push rod, a mounting seat, two pull wires and a protective cover. A pull wire fixed end, an electrocoagulation switch, a mounting seat, a second limit hole and two sub-limit holes are fixedly connected on the side of the electrosurgical knife body from top to bottom. One end of each pull wire is connected to a moving rod, and the other ends of the two moving rods are connected to the protective cover. The other end of each pull wire passes through a neighboring sub-limit hole from bottom to top in sequence, and is fixedly connected to the pull wire fixed end after the second limit hole and the first limit hole. The middle parts of the two moving rods are slidably connected in their respective channels respectively; the push rod is slidably connected in the through hole of the mounting seat, and the straight-line distance between the pressed end of the push rod and the electrocoagulation switch is less than two centimeters. A tension spring is sleeved on the other end of the push rod, and the two ends of the tension spring are fixedly connected to the mounting seat and the end of the push rod respectively. The end of the push rod away from the electrocoagulation switch is provided with a first limit hole, and the tip of the needle electrosurgical knife passes through the protective cover.

[0007] As a better technical solution of the utility model: a power cord is connected to the top of the electrosurgical unit, the straight line where the pull cord fixed end and the second limit hole are located is parallel to the center line of the electrosurgical unit, the third limit hole and the fourth limit hole are located on both sides of the straight line, and the distances to the straight line are equal; the straight line, the electrocoagulation switch and the center line of the electrosurgical unit are located in the same plane; the mounting seat is located between the electrocoagulation switch and the straight line.

[0008] As a better technical solution of the utility model: the needle-type electric knife is detachably connected to the lower end of the electric knife body, the sub-limiting hole includes a third limiting hole and a fourth limiting hole, the channel is fixedly connected to the lower end of the electric knife body, and are respectively located on both sides of the straight line. The first channel is on the same side as the third limiting hole, one end of the first movable rod is connected to the first pull wire, the middle part is slidably connected in the first channel, and the other end is connected to the protective cover, one end of the second movable rod is connected to the second pull wire, the middle part is slidably connected in the second channel, and the other end is connected to the protective cover, the first pull wire passes through the third limiting hole from bottom to top, the second limiting hole and the first limiting hole, and then is fixedly connected to the fixed end of the pull wire, the second pull wire passes through the fourth limiting hole, the second limiting hole, and the first limiting hole in sequence, and then is fixedly connected to the fixed end of the pull wire.

[0009] Another object of the utility model is to provide a high-frequency electric knife, wherein the high-frequency electric knife is provided with the high-frequency electric knife tip protection device.

[0010] The technical effects of the utility model are as follows:

[0011] The distance between the pressing end of the push rod and the electrocoagulation switch is within the range of the same thumb tip. The pressing end can be pressed simultaneously when the electrocoagulation switch is pressed, and the pressing end can be released simultaneously when the electrocoagulation switch is released, so that the sharp part of the electric knife does not need to be exposed before pressing the electrocoagulation switch. The sharp part of the electric knife can be protected after using the electric knife to prevent the tip of the high-frequency electric knife from stabbing others. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of the structure of the high-frequency electric knife tip protection device. DETAILED DESCRIPTION

[0013] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] The utility model provides a high-frequency electric knife tip protection device, comprising an electric knife body, a push rod, a mounting seat, two pull wires and a protective cover, a pull wire fixed end, an electrocoagulation switch, a mounting seat, a second limit hole and two sub-limit holes are fixedly connected on the side of the electric knife body from top to bottom, one end of each pull wire is connected to a moving rod, the other ends of the two moving rods are connected to the protective cover, the other end of each pull wire passes through a neighboring sub-limit hole from bottom to top in sequence, the second limit hole and the first limit hole are fixedly connected to the pull wire fixed end, the middle parts of the two moving rods are slidably connected in their respective channels respectively; the push rod is slidably connected in the through hole of the mounting seat, the straight-line distance between the pressed end of the push rod and the electrocoagulation switch is less than two centimeters, a tension spring is sleeved on the other end of the push rod, the two ends of the tension spring are fixedly connected to the mounting seat and the end of the push rod respectively, the end of the push rod away from the electrocoagulation switch is provided with a first limit hole, and the tip of the needle electric knife passes through the protective cover.

[0015] Example 1

[0016] like Figure 1The figure shows a high-frequency electrosurgical knife tip protection device of the present invention, comprising an electrosurgical knife body 5 with an electrocoagulation switch 2 on the side, a power cord 1 connected to the top of the electrosurgical knife body 5, a pull-wire fixing end 8, a second limiting hole 11, a third limiting hole 12 and a fourth limiting hole 15 are provided on the side of the electrosurgical knife body 5, the pull-wire fixing end 8 and the second limiting hole 11 are located on a straight line A, the straight line A is parallel to the center line of the electrosurgical knife body 5, the third limiting hole 12 and the fourth limiting hole 15 are located on both sides of the straight line A; the straight line A and the electrocoagulation switch 2 are located on the same electrosurgical knife body. The main body 5 is in the plane of the center line of the main body 5; a mounting seat 9 is fixedly connected to the side of the electrosurgical body 5, and the straight-line distance from the mounting seat 9 to the vertical line where the electrocoagulation switch 2 is located is equal to the straight-line A; the push rod 3 is slidably connected to the through hole of the mounting seat 9, and the end of the push rod 3 close to the electrocoagulation switch 2 is the pressing end, and the straight-line distance between the pressing end and the electrocoagulation switch 2 is less than two centimeters. The end of the push rod 3 away from the electrocoagulation switch 2 is sleeved with a tension spring 4, one end of the tension spring 4 is fixed to the end edge of the push rod 3 away from the electrocoagulation switch 2, and the other end of the tension spring 4 is fixedly connected to the mounting seat 9 On the top, a first limiting hole 10 is opened at the end of the push rod 3 away from the electrocoagulation switch 2; the first limiting hole 10 is located between the pull wire fixed end 8 and the second limiting hole 11, and the lower end of the electrosurgical knife body 5 is detachably connected to a needle-type electrosurgical knife 19, and the lower end of the electrosurgical knife body 5 is fixedly connected to a first channel 13 and a second channel 17, and the first channel 13 and the second channel 17 are located on both sides of the straight line A, and the first channel 13 is on the same side as the third limiting hole 12, one end of the first moving rod 14 is connected to the first pull wire 7, and the middle part is slidably connected in the first channel 13, and the other end of the first moving rod 14 is connected to the first pull wire 7. One end is connected to the protective cover 16, one end of the second movable rod 18 is connected to the second pull wire 6, the middle part is slidably connected in the second channel 17, and the other end is connected to the protective cover 16, the first pull wire 7 passes through the third limiting hole 12, the second limiting hole 11, and the first limiting hole 10 from bottom to top in sequence, and then is fixedly connected to the pull wire fixed end 8, the second pull wire 6 passes through the fourth limiting hole 15, the second limiting hole 11, and the first limiting hole 10 in sequence, and then is fixedly connected to the pull wire fixed end 8, and the tip of the needle electric knife 19 is inserted into the inner side of the protective cover 16.

[0017] The utility model also provides a high-frequency electric knife with the high-frequency electric knife tip protection device. The use process of the high-frequency electric knife is as follows:

[0018] Before the needle electrosurgical knife 19 contacts the patient, the tip of the needle electrosurgical knife 19 is inside the protective cover 16. When electrocoagulation hemostasis is needed, the distal end of the thumb presses the pressing end of the push rod 3, and the push rod 3 moves away from the electrocoagulation switch 2. The pull wire distance between the pull wire fixed end 8 and the second limit hole 11 increases, and the first moving rod 14 and the second moving rod 18 are pulled to move closer to the electrosurgical knife body 5. The tip of the needle electrosurgical knife 19 located in the protective cover 16 is exposed, and the proximal end of the thumb presses the electrocoagulation switch 2, and the needle electrosurgical knife 19 performs electrocoagulation hemostasis.

[0019] After the electrocoagulation hemostasis is completed, the thumb pressing on the push rod 3 and the electrocoagulation switch 2 is released, the needle electrosurgical knife 19 stops electrocoagulation, the tension spring 4 pulls the push rod 3 to reset, and the tip of the needle electrosurgical knife 19 is located in the protective cover 16 again.

[0020] In the present utility model, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0022] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A high-frequency electric knife tip protection device, characterized in that: It includes an electric knife body, a push rod, a mounting seat, two pull wires and a protective cover. The side surface of the electric knife body is fixedly connected with a pull wire fixed end, an electrocoagulation switch, a mounting seat, a second limit hole and two sub-limit holes from top to bottom. One end of each pull wire is connected to a moving rod, and the other ends of the two moving rods are connected to the protective cover. The other end of each pull wire passes through a neighboring sub-limit hole from bottom to top in sequence, and is fixedly connected to the pull wire fixed end after the second limit hole and the first limit hole. The middle parts of the two moving rods can be slidably connected in their respective channels respectively; the push rod can be slidably connected in the through hole of the mounting seat, and the straight-line distance between the pressed end of the push rod and the electrocoagulation switch is less than two centimeters. A tension spring is sleeved on the other end of the push rod, and the two ends of the tension spring are fixedly connected to the mounting seat and the end of the push rod respectively. The end of the push rod away from the electrocoagulation switch is provided with a first limit hole, and the tip of the needle electric knife passes through the protective cover.

2. The high-frequency electric knife tip protection device according to claim 1, characterized in that: A power cord is connected to the top of the electrosurgical unit body; the straight line where the pull cord fixed end and the second limit hole are located is parallel to the center line of the electrosurgical unit body; the third limit hole and the fourth limit hole are located on both sides of the straight line and are equidistant from the straight line; the straight line, the electrocoagulation switch and the center line of the electrosurgical unit body are located in the same plane; the mounting seat is located between the electrocoagulation switch and the straight line.

3. The high-frequency electric knife tip protection device according to claim 1, characterized in that: The needle-type electric knife is detachably connected to the lower end of the electric knife body, and the sub-limiting holes include a third limiting hole and a fourth limiting hole. The channel is fixedly connected to the lower end of the electric knife body, which are respectively located on both sides of the straight line. The first channel is on the same side as the third limiting hole. One end of the first movable rod is connected to the first pull wire, the middle part is slidably connected in the first channel, and the other end is connected to the protective cover. One end of the second movable rod is connected to the second pull wire, the middle part is slidably connected in the second channel, and the other end is connected to the protective cover. The first pull wire passes through the third limiting hole from bottom to top, and is fixedly connected to the fixed end of the pull wire after passing through the second limiting hole and the first limiting hole. The second pull wire passes through the fourth limiting hole, the second limiting hole, and the first limiting hole in sequence, and is fixedly connected to the fixed end of the pull wire.

4. A high-frequency electric knife, characterized in that: The high-frequency electric knife is provided with the high-frequency electric knife tip protection device as claimed in claim 1.

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