CN218106035U - A Surgical Smoking Knife with Ergonomic Design - Google Patents

Abstract

The utility model relates to the field of electrosurgical instruments, and discloses an operation smoking knife with ergonomic design. The smoking scalpel comprises a penholder-shaped shell. The outer surface of the shell comprises a holding part, and a groove is formed in the side wall of the holding part; the groove is formed by a first reference line and a second reference line, wherein the first reference line and the second reference line are intersected at end points and move and sweep on the side wall of the holding part, the first reference line forms a first surface of the groove, and the second reference line forms a second surface of the groove. The scheme is used for solving the problem that the posture of the surgical smoking knife is difficult to stably control and the hand feeling of holding is not good.

Description

A Surgical Smoking Knife with Ergonomic Design

technical field

The utility model relates to the field of electrosurgical instruments, in particular to a surgical smoking knife with ergonomic design.

Background technique

High-frequency electrosurgical scalpel is an electrosurgical medical device that replaces mechanical scalpel for tissue cutting. It heats the tissue when the high-frequency and high-voltage current generated by the effective electrode tip contacts the body, and realizes the separation and coagulation of the body tissue, thereby achieving the purpose of cutting and hemostasis. Electrocution is a high-density current that causes the temperature of the cell to rise rapidly over 100 degrees Celsius, and the pressure of the gasification of the liquid in the cell causes the cell membrane to be ruptured. Therefore, precise cutting can be performed without mechanical force, and hemostatic effect can be produced while cutting. Electrocoagulation is a relatively slow gasification of the liquid inside and outside the cells, so that the cells shrink and coagulate, and the blood vessel wall is sealed to stop bleeding, without the need for separate suturing of blood vessels.

The high-frequency electrosurgical unit will generate smoke and dust during the above-mentioned electric cutting and coagulation process. The smoke and dust belong to medical waste, and improper treatment of medical waste may easily cause cross-infection between doctors and patients, endangering the health of medical staff. In addition, the generation of smoke and dust will also interfere with the surgeon's line of sight, which is not conducive to the operation. Therefore, the position of the head of the high-frequency electrosurgical knife is usually provided with a pipe for sucking and exhausting toxic fumes. The air inlet of the pipeline is close to the electric knife head, and the air outlet is connected to the exhaust device. When working, the exhaust device generates negative pressure, and the smoke generated by the surgical site is collected and discharged through the pipeline. Because the high-frequency electrotome is equipped with a pipe for sucking and exhausting toxic fumes, the high-frequency electrotome is also called a smoking knife. The smoking knife includes a pen-shaped shell, and the chief surgeon holds the shell to perform electrocution and electrocoagulation. In the prior art, there are protruding soft rubber strips arranged at intervals on both sides of the shell of the smoking knife to increase the friction when the surgeon is holding it, but the raised soft rubber strips make it difficult to maintain the posture of the smoking knife stably. At the same time, it will also lead to poor grip feeling, which will affect the use of the surgeon.

Utility model content

The utility model aims at overcoming at least one deficiency of the above-mentioned prior art, and provides a surgical smoking knife with an ergonomic design, which is used to solve the problems that the posture of the surgical smoking knife is difficult to control stably and the hand feeling is not good.

The technical solution adopted by the utility model is that a surgical smoking knife with ergonomic design includes a pen-shaped housing. The outer surface of the housing includes a grip portion, and a groove is provided on the side wall of the grip portion; the groove is moved and swept on the side wall of the grip portion by the first reference line and the second reference line whose endpoints intersect formed, wherein the first reference line forms a first surface of the groove and the second reference line forms a second surface of the groove.

In this solution, the housing of the surgical smoking knife is divided into a grip portion, and grooves are provided at appropriate positions on the side walls of the grip portion. The chief surgeon holds the surgical smoking knife in the way of holding a pen, that is, the grip part rests on the curled middle finger, and the thumb and index finger press on the groove, or the thumb and middle finger press on the groove. The first surface and the second surface of the groove are respectively in contact with the fingers. Since the fingers are embedded and pressed on the first surface and the second surface of the groove, when the fingers move, the surgical smoking knife will be driven, and the surgical smoking knife will not produce unnecessary shaking around the fingers, so that the surgeon can accurately and stably control the operation The posture of the smoking knife; at the same time, the embedded pressing also improves the anti-skid performance of the surgical smoking knife. In addition, because the finger is in surface contact with the groove, the pressure when the finger is pressed is reduced, thereby improving the grip feeling of the surgical smoking knife.

In this solution, in order to describe the shape of the groove conveniently, the first reference line and the second reference line are introduced as imaginary reference lines. One end of the first reference line intersects one end of the second reference line. The sweep surface generated by the first reference line moving on the side wall of the holding part is the first surface of the groove, and the sweep surface generated by the second reference line moving on the side wall of the holding part is the second surface of the groove. The included angle between the first surface and the second surface is preferably an obtuse angle, so as to make the groove as wide as possible, which is more convenient for fingers to insert and press. Multiple grooves should be provided, arranged on the side wall of the holding part from front to back, so as to provide multiple optional holding positions, which is convenient for the chief surgeon to use.

Preferably, the included angle between the first reference line and the side wall of the grip part is smaller than the included angle between the second reference line and the side wall of the grip part, and the first surface The angle between the second surface and the side wall of the grip is smaller than the angle between the second surface and the side wall of the grip. When the first surface, the second surface or the side wall are curved surfaces, the included angle is the included angle between the tangents of the intersecting positions. This program is defined by the size relationship of the included angle, so that the first surface of the groove is wider than the second surface, that is, the two sides of the groove, the front side (first surface) is gentle, and the rear side (second surface) surface) is steeper. The asymmetrical grooves fit better with the pressing fingers while holding it.

Preferably, the first reference line and the second reference line sweep from front to back, obliquely upward, and linearly to form the groove on the side wall of the gripping portion. The angled grooves better match the angle at which the fingers bend when holding a surgical smoking knife.

Further, the inclination angle of the linear moving sweep is between 30° and 50°.

Further, the depths of the first reference line and the second reference line gradually change from deep to shallow when the side wall of the holding part moves and sweeps. The first reference line and the second reference line are swept from front to back and from bottom to top, so the depth of the groove at the lower part of the side wall of the holding part is relatively deep. When the surgical smoking knife is held, the lower part of the grip part rests on the middle finger of the chief surgeon. The deeper groove can better hold the middle finger, further improving the grip stability of the surgical smoking knife.

Preferably, the intersection end point of the first reference line and the second reference line is provided with a rounded corner, and the intersection position of the first surface and the second surface is provided with a third surface. The sweeping surface generated by the movement of the fillet on the side wall of the holding portion is the third surface of the groove. The third surface serves as a transition between the first surface and the second surface, making the surface of the groove smooth and without edges, further improving the gripping feeling of the surgical smoking knife.

Preferably, the grooves include a first groove, a second groove and a third groove arranged side by side from front to back, and the depth of the first groove, the depth of the second groove and the depth of the third groove are sequentially Decrease, the width of the first groove, the width of the second groove and the width of the third groove increase successively, and the length of the first groove, the length of the second groove and the length of the third groove increase successively.

Preferably, the side wall of the handle or the surface of the groove is provided with non-slip material.

Preferably, a boss is provided downwards at the front part of the grip, and the boss transitions smoothly with the middle part of the grip. When the surgical smoking knife is held, the lower part of the grip part rests on the middle finger of the chief surgeon. The boss sits just in front of the middle finger, limiting further forward grip.

Preferably, the width of the grip part gradually narrows from the front to the back, and then gradually becomes wider from narrow, and the width of the front part of the grip part is greater than the width of the rear part of the grip part. The slender grip makes it easier and more stable for the surgeon to control the posture of the surgical smoking knife.

Compared with the prior art, the beneficial effects of the utility model are:

In this solution, a groove is provided on the grip part of the housing, so that the fingers are embedded and pressed on the first surface and the second surface of the groove. When the fingers move, the surgical smoking knife is driven to move, and the surgical smoking knife will not produce entanglement with the fingers. The unnecessary shaking of the surgical smoking knife enables the surgeon to accurately and stably control the posture of the surgical smoking knife; at the same time, the embedded pressing also improves the anti-slip performance of the surgical smoking knife. In addition, because the finger is in surface contact with the groove, the pressure when the finger is pressed is reduced, thereby improving the grip feeling of the surgical smoking knife.

This solution further defines the way the first reference line and the second reference line move and sweep, including the sweeping angle, inclination angle and depth, etc., so that the groove of the grip part is more ergonomic, and the surgical smoking knife is improved. Grip stability and grip feel.

Description of drawings

Fig. 1 is the front view of the utility model embodiment 1.

Fig. 2 is a top view of Embodiment 1 of the present utility model.

Fig. 3 is an exploded view of Embodiment 1 of the present utility model.

Fig. 4 is an enlarged front view of the grip part of Embodiment 1 of the present utility model.

Fig. 5 is an enlarged view of the groove of Embodiment 1 of the present utility model.

Fig. 6 is a cross-sectional view at B-B of Embodiment 1 of the present utility model.

Fig. 7 is a sectional view at C-C of Embodiment 1 of the present utility model.

Explanation of symbols: housing 10, electrode 20, control circuit board 30, operation button 31, grip part 50, groove 51, first groove 52, second groove 53, third groove 54, boss 55, A first reference line 61 , a second reference line 62 , a fillet 63 , a first surface 64 , a second surface 65 , and a third surface 66 .

detailed description

The accompanying drawings of the utility model are only used for exemplary description, and should not be construed as a limitation of the utility model. In order to better illustrate the following embodiments, some components in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, some known structures and their descriptions in the drawings may be omitted. understandable.

Example 1

As shown in Figures 1 to 5, the present embodiment is a surgical smoking knife with ergonomic design, which includes a housing 10 in the shape of a pen holder. The outer surface of the housing 10 includes a handle 50, the side wall of the handle 50 is provided with a groove 51; the groove 51 is gripped by a first reference line 61 and a second reference line 62 whose endpoints intersect The sidewall of the portion 50 is formed by moving and sweeping, wherein the first reference line 61 forms the first surface 64 of the groove 51 , and the second reference line 62 forms the second surface 65 of the groove 51 .

In this solution, the casing 10 of the surgical smoking knife is divided into a grip portion 50 , and further grooves 51 are provided at appropriate positions on the side walls of the grip portion 50 . The surgeon in charge holds the surgical smoking knife in the manner of holding a pen, that is, the holding part 50 rests on the curled middle finger, and the thumb and forefinger press on the groove 51 , or the thumb and middle finger press on the groove 51 . The first surface 64 and the second surface 65 of the groove 51 are respectively in contact with fingers. Since the fingers are embedded and pressed on the first surface 64 and the second surface 65 of the groove 51, when the fingers move, the surgical smoking knife will be driven to move, and the surgical smoking knife will not produce unnecessary shaking around the fingers, so that the surgeon can be accurate and stable. The posture of the surgical smoking knife can be accurately controlled; at the same time, the embedded pressing also improves the anti-slip performance of the surgical smoking knife. In addition, since the finger is in surface contact with the groove 51 , the pressure when the finger is pressed is reduced, thereby improving the grip feeling of the surgical smoking knife.

In this solution, in order to describe the shape of the groove 51 conveniently, the first reference line 61 and the second reference line 62 are introduced as imaginary reference lines. One end of the first reference line 61 intersects one end of the second reference line 62 . The first reference line 61 moves on the side wall of the grip part 50 to generate a sweeping surface that is the first surface 64 of the groove 51, and the second reference line 62 moves on the side wall of the grip part 50 to generate a sweep surface that is concave. The second surface 65 of the slot 51 . The included angle between the first surface 64 and the second surface 65 is preferably an obtuse angle, so as to make the groove 51 as wide as possible, which is more convenient for fingers to insert and press. There should be multiple grooves 51 arranged on the side wall of the holding part 50 from front to back, so as to provide multiple optional holding positions, which is convenient for the chief surgeon to use.

In this embodiment, the grip portion 50 is disposed at the middle front position of the housing 10, and a plurality of grooves 51 are symmetrically disposed on the left and right sides of the grip portion 50. The casing 10 is molded by injection molding, and the groove 51 is integrally formed with the casing 10 . The casing 10 is a split structure, consisting of a left casing 10 and a right casing 10 . The left housing 10 and the right housing 10 are fixed through a buckle connection. A sealant or a sealing ring can be further provided on the buckle to enhance the sealing performance of the cavity in the housing 10 . The surgical smoking knife also includes an electrode 20 and a control circuit board 30, and the electrode 20 and the control circuit board 30 are electrically connected and jointly arranged in the cavity inside the housing 10. The front end of the electrode 20 protrudes from the front end of the housing 10 and is the working part of the surgical smoking knife. The rear end of the casing 10 is connected with an exhaust pipe. When working, there is a negative pressure in the exhaust pipe, and the toxic smoke generated by the surgical site is sucked in from the front end of the surgical smoking knife, and then sucked out by the exhaust pipe. The control circuit board 30 is used to control the start and stop of the electrode 20, and switch between the electric cutting and electrocoagulation working modes. A power supply cable is connected to the rear end of the control circuit board 30 . An operation button 31 corresponding to electrocution and electrocoagulation is provided on the upper surface of the grip portion 50 of the casing 10 , and the operation button 31 passes through the casing 10 and contacts the control circuit board 30 . The operation button 31 is preferably a hard rubber product, and the material is ABS and/or PC. The upper surface of the operation button 31 is provided with anti-slip stripes or textures to enhance its anti-slip effect.

As shown in FIG. 6 , preferably, the angle between the first reference line 61 and the side wall of the handle 50 is smaller than the angle between the second reference line 62 and the side wall of the handle 50 . The included angle between the first surface 64 and the sidewall of the handle 50 is smaller than the included angle between the second surface 65 and the sidewall of the handle 50 . When the first surface 64, the second surface 65 or the side wall are curved surfaces, the included angle is the included angle between the tangents of the intersecting positions. This program is limited by the size relationship of the included angle, so that the first surface 64 of the groove 51 is wider than the second surface 65, that is, the two sides of the groove 51, the front side (the first surface 64) is relatively gentle, The rear side (second surface 65) is steeper. The asymmetrical groove 51 is more suitable for pressing fingers when holding it.

As shown in FIG. 4 , preferably, the first reference line 61 and the second reference line 62 sweep from front to back, obliquely upward, and linearly move to form the groove on the side wall of the gripping portion 50 51. The inclined groove 51 is more in line with the bending angle of the fingers when holding the surgical smoking knife.

Further, the inclination angle of the linear moving sweep is between 30° and 50°.

As shown in FIG. 7 , further, the depths of the first reference line 61 and the second reference line 62 gradually change from deep to shallow when the side wall of the holding portion 50 is moved and swept. The first reference line 61 and the second reference line 62 are swept from front to back and from bottom to top, so the groove 51 at the lower part of the side wall of the gripping part 50 is relatively deep. When the surgical smoking knife is held, the lower part of the grip part 50 is placed on the middle finger of the chief surgeon. The deeper groove 51 can hold the middle finger better, further improving the holding stability of the surgical smoking knife.

Preferably, the intersection of the first reference line 61 and the second reference line 62 is provided with a rounded corner 63 , and the intersection of the first surface 64 and the second surface 65 is provided with a third surface 66 . The sweeping surface generated by the movement of the fillet 63 on the sidewall of the holding portion 50 is the third surface 66 of the groove 51 . The third surface 66 serves as a transition between the first surface 64 and the second surface 65 , making the surface of the groove 51 smooth and without edges, and further improving the gripping feel of the surgical smoking knife.

As shown in Figure 4, preferably, the groove 51 includes a first groove 52, a second groove 53 and a third groove 54 arranged side by side from front to back, the depth of the first groove 52, the depth of the second groove The depth of the groove 53 and the depth of the third groove 54 decrease successively, the width of the first groove 52, the width of the second groove 53 and the width of the third groove 54 increase successively, the length of the first groove 52, the width of the second groove The length of the second groove 53 and the length of the third groove 54 increase sequentially.

Preferably, the side wall of the handle 50 or the surface of the groove 51 is provided with anti-slip material.

Preferably, the front portion of the gripping portion 50 is downwardly provided with a boss 55 , and the boss 55 transitions smoothly with the middle portion of the gripping portion 50 . When the surgical smoking knife is held, the lower part of the grip part 50 is placed on the middle finger of the chief surgeon. The boss 55 is located just in front of the middle finger, limiting further forward grip.

As shown in FIG. 2 , preferably, the width of the grip portion 50 gradually narrows from the front to the rear, and then gradually becomes wider from narrow, and the width of the front portion of the grip portion 50 is greater than that of the grip portion 50 . The width of the rear. The slender grip portion 50 enables the chief surgeon to more easily and stably control the posture of the surgical smoking knife.

Apparently, the above-mentioned embodiments of the utility model are only examples for clearly illustrating the technical solutions of the utility model, rather than limiting the specific implementation of the utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the claims of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (10)

1. A surgical smoking knife with ergonomic design, comprising a penholder-shaped housing; it is characterized in that the outer surface of the housing includes a grip, and a groove is provided on the side wall of the grip; The groove is formed by moving and sweeping the first reference line and the second reference line whose endpoints intersect on the side wall of the grip part, wherein the first reference line forms the first surface of the groove, and the second reference line forms the second surface of the groove. surface. 2. A surgical smoking knife with ergonomic design according to claim 1, characterized in that the angle between the first reference line and the side wall of the grip part is smaller than the second reference line The angle between the line and the side wall of the grip part, the angle between the first surface and the side wall of the grip part is smaller than the angle between the second surface and the side wall of the grip part horn. 3. The surgical smoking knife with ergonomic design according to claim 1, characterized in that, the first reference line and the second reference line are located on the side wall of the holding part from front to back, An oblique upward, linear movement sweep forms the grooves. 4. An ergonomically designed surgical smoking knife according to claim 3, wherein the first reference line and the second reference line move and sweep the side wall of the holding part The depth gradually changes from deep to shallow. 5 . The surgical smoking knife with ergonomic design according to claim 3 , wherein the inclination angle of the linear moving sweep is between 30° and 50°. 6. A surgical smoking knife with ergonomic design according to claim 1, characterized in that, the intersection endpoints of the first reference line and the second reference line are provided with rounded corners, and the first surface A third surface is provided at the intersection position with the second surface. 7. An ergonomically designed surgical smoking knife according to claim 1, wherein the grooves include a first groove, a second groove and a third groove arranged side by side from front to back, The depth of the first groove, the depth of the second groove and the depth of the third groove decrease successively, the width of the first groove, the width of the second groove and the width of the third groove increase successively, the first groove The length of the groove, the length of the second groove and the length of the third groove increase successively. 8 . The surgical smoking knife with ergonomic design according to claim 1 , characterized in that, the side wall of the grip part or the surface of the groove is provided with non-slip material. 9. A surgical smoking knife with ergonomic design according to any one of claims 1 to 8, characterized in that, the front part of the grip part is provided with a boss downwards, and the boss and the grip part Smooth transition in the middle. 10. An ergonomically designed surgical smoking knife according to any one of claims 1 to 8, characterized in that, the width of the grip part gradually narrows from wide to narrow from front to back, and then gradually narrows to narrow. wide, and the width of the front portion of the grip is greater than the width of the rear of the grip.

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