CN218106035U - Surgical smoke suction 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

Surgical smoke suction knife with ergonomic design

Technical Field

The utility model relates to an electrosurgical instrument field, more specifically relates to a surgery smoking sword with ergonomic design.

Background

The high-frequency electric knife is an electric surgical medical instrument for replacing a mechanical scalpel to cut tissues. The tissue is heated when the high-frequency high-voltage current generated by the tip of the effective electrode contacts with the body, so that the separation and coagulation of the body tissue are realized, and the purposes of cutting and hemostasis are achieved. Electrotomy is a pressure at which high-density current rapidly raises the cell temperature above 100 ℃ and the intracellular fluid vaporizes, causing the cell membrane to burst. Therefore, the hemostatic cutting instrument can accurately cut without mechanical force, and generates a hemostatic effect while cutting. Electrocoagulation is the relatively slow gasification of liquid inside and outside cells, so that the cells contract and solidify, the vessel wall is sealed to stop bleeding, and the blood vessel does not need to be separately sutured.

High frequency electrotomes produce smoke during the above described electrotomy and electrocoagulation processes. The smoke belongs to medical waste, and improper treatment of the medical waste can easily cause cross infection of doctors and patients and harm the health of medical staff. In addition, the smoke may interfere with the vision of the doctor and is not conducive to the operation. Therefore, the position of the knife head of the high-frequency electric knife is usually provided with a pipeline for sucking and exhausting toxic smoke. The air inlet of the pipeline is close to the electrotome head, and the air outlet is connected with an exhaust device. When the device works, the exhaust device generates negative pressure to collect and exhaust smoke dust generated at the operation position through the pipeline. Since the high-frequency electric knife is provided with a duct for sucking and discharging toxic smoke, the high-frequency electric knife is also called a smoke knife. The smoke suction knife comprises a penholder-shaped shell, and a doctor of the main knife holds the shell to perform electric cutting and electric coagulation operation. In the prior art, the two sides of the shell of the smoking knife are provided with the raised soft rubber strips which are arranged at intervals so as to increase the friction force when a doctor grips the smoking knife, but the raised soft rubber strips make the posture of the smoking knife difficult to stably control, and simultaneously lead to poor gripping hand feeling and influence the use of the doctor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome at least one of the deficiencies of the prior art and provide a surgical smoking knife with ergonomic design for the gesture of solving the surgical smoking knife is difficult to control steadily and grips the not good problem of feeling.

The utility model adopts the technical proposal that the surgical smoke suction knife with the ergonomic design 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 end points of the first reference line and the second reference line intersect, the first reference line and the second reference line 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.

In this scheme, mark off the portion of gripping on the casing of operation smoking sword, and then set up the recess on the suitable position on the lateral wall of the portion of gripping. The doctor holds the smoke absorbing scalpel by holding the pen, namely, the holding part is put on the curled middle finger, and the thumb and the index finger press on the groove, or the thumb and the middle finger press on the groove. The first surface and the second surface of the groove are respectively contacted with the finger. Because the fingers are embedded and pressed on the first surface and the second surface of the groove, when the fingers move, the fingers drive the operation smoking knife to move, the operation smoking knife can not generate redundant shaking around the fingers, and a doctor of a main knife can accurately and stably master the posture of the operation smoking knife; meanwhile, the anti-skid performance of the surgical smoking knife is improved by embedding and pressing. In addition, because the fingers are in surface contact with the grooves, the pressure of the fingers during pressing is reduced, and the holding hand feeling of the surgical smoke suction knife is further improved.

In this scheme, for convenience of describing the shape of the groove, a first reference line and a 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 swept surface generated by the movement of the first reference line on the side wall of the holding part is the first surface of the groove, and the swept surface generated by the movement of the second reference line 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 that the groove is as wide as possible, and the finger can be embedded and pressed more conveniently. The grooves are arranged on the side walls of the holding portion from front to back, so that a plurality of selectable holding positions are provided, and the use by a doctor is facilitated.

Preferably, an included angle between the first reference line and the side wall of the holding portion is smaller than an included angle between the second reference line and the side wall of the holding portion, and an included angle between the first surface and the side wall of the holding portion is smaller than an included angle between the second surface and the side wall of the holding portion. When the first surface, the second surface or the side wall is a curved surface, the included angle is the included angle between the tangents of the intersection positions. The scheme is limited by the size relation of the included angle, so that the first surface of the groove is wider than the second surface, namely the two side surfaces of the groove are smooth in the front side (the first surface) and steep in the rear side (the second surface). Asymmetric grooves are more fit for fingers pressed when held.

Preferably, the first reference line and the second reference line sweep to form the groove in a front-to-back, obliquely upward and linear moving manner on the sidewall of the holding part. The inclined groove is more suitable for the bending angle of fingers when the surgical smoking knife is held.

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

Further, the depth of the first reference line and the second reference line gradually changes from deep to shallow when the sidewall of the holding portion moves and sweeps. The first reference line and the second reference line are swept from front to back in a downward-upward movement mode, so that the groove depth of the lower portion of the side wall of the holding portion is deeper. When the surgical smoking knife is held, the lower part of the holding part is lapped on the middle finger of a doctor. The deeper groove can better clamp the middle finger, and the holding stability of the surgical smoke suction knife is further improved.

Preferably, the intersection end point of the first reference line and the second reference line is provided with a fillet, and the intersection position of the first surface and the second surface is provided with a third surface. The swept surface generated by the movement of the fillet on the side wall of the holding part is the third surface of the groove. The third surface is used as the transition of the first surface and the second surface, so that the surface of the groove is smooth and has no edge, and the holding hand feeling of the surgical smoking knife is further improved.

Preferably, the grooves comprise a first groove, a second groove and a third groove which are arranged from front to back in parallel, the depth of the first groove, the depth of the second groove and the depth of the third groove are sequentially decreased progressively, the width of the first groove, the width of the second groove and the width of the third groove are sequentially increased progressively, and the length of the first groove, the length of the second groove and the length of the third groove are sequentially increased progressively.

Preferably, the side wall of the holding part or the surface of the groove is provided with an anti-slip material.

Preferably, the front part of the holding part is provided with a lug boss downwards, and the lug boss is in smooth transition with the middle part of the holding part. When the surgical smoking knife is held, the lower part of the holding part is lapped on the middle finger of a doctor. The boss is located just forward of the middle finger, limiting further forward grip.

Preferably, the width of the holding part gradually becomes narrower from front to back, and then gradually becomes wider from the front, and the width of the front part of the holding part is larger than that of the rear part of the holding part. The slender holding part enables the doctor to control the posture of the surgical smoking knife more easily and stably.

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

according to the scheme, the groove is formed in the holding part of the shell, so that 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, the surgical smoking knife cannot generate redundant shaking around the fingers, and a doctor of a main knife can accurately and stably control the posture of the surgical smoking knife; meanwhile, the anti-skid performance of the surgical smoking knife is improved by embedding and pressing. In addition, because the fingers are in surface contact with the grooves, the pressure generated when the fingers press the grooves is reduced, and the holding hand feeling of the surgical smoking knife is further improved.

According to the scheme, the mode that the first reference line and the second reference line are moved and swept is further limited, the sweeping angle, the sweeping depth and the like are included, so that the groove of the holding part is more in line with the human engineering, and the holding stability and the holding hand feeling of the surgical smoke suction knife are improved.

Drawings

Fig. 1 is a front view of embodiment 1 of the present invention.

Fig. 2 is a plan view of embodiment 1 of the present invention.

Fig. 3 is an exploded view of embodiment 1 of the present invention.

Fig. 4 is an enlarged front view of a grip portion according to embodiment 1 of the present invention.

Fig. 5 is an enlarged view of a groove according to embodiment 1 of the present invention.

Fig. 6 is a sectional view taken along line B-B of example 1 of the present invention.

Fig. 7 is a cross-sectional view at C-C of embodiment 1 of the present invention.

Description of reference numerals: the electrode structure comprises a shell 10, an electrode 20, a control circuit board 30, an operation button 31, a holding part 50, a groove 51, a first groove 52, a second groove 53, a third groove 54, a boss 55, a first reference line 61, a second reference line 62, a round corner 63, a first surface 64, a second surface 65 and a third surface 66.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1 to 5, the present embodiment is an ergonomic design of a smoke surgical knife, which includes a housing 10 in the shape of a pencil. The outer surface of the shell 10 comprises a holding part 50, and a groove 51 is arranged on the side wall of the holding part 50; the groove 51 is formed by moving and sweeping a first reference line 61 and a second reference line 62, which have end points intersecting with each other, on the side wall of the holding portion 50, wherein the first reference line 61 forms a first surface 64 of the groove 51, and the second reference line 62 forms a second surface 65 of the groove 51.

In this embodiment, the housing 10 of the surgical smoking blade is divided into a holding portion 50, and a groove 51 is formed at a suitable position on the side wall of the holding portion 50. The doctor holds the surgical smoking blade in a pen-holding manner, i.e., the holding part 50 is lapped on the curled middle finger, and the thumb and the index finger are pressed on the groove 51, or the thumb and the middle finger are pressed on the groove 51. The first surface 64 and the second surface 65 of the recess 51 are respectively in contact with a finger. Because 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 fingers drive the operation smoking knife to move, the operation smoking knife can not generate redundant shaking around the fingers, and a doctor of a main knife can accurately and stably master the posture of the operation smoking knife; meanwhile, the anti-skid performance of the surgical smoking knife is improved by embedding and pressing. In addition, because the fingers are in surface contact with the grooves 51, the pressure generated when the fingers press is reduced, and the holding hand feeling of the surgical smoking knife is further improved.

In this case, for convenience of describing the shape of the groove 51, a first reference line 61 and a 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 sidewall of the holding portion 50 to generate a swept surface which is a first surface 64 of the groove 51, and the second reference line 62 moves on the sidewall of the holding portion 50 to generate a swept surface which is a second surface 65 of the groove 51. The angle between the first surface 64 and the second surface 65 is preferably obtuse to make the groove 51 as wide as possible, which is more favorable for finger insertion pressing. The grooves 51 are arranged in a plurality from front to back on the side wall of the holding portion 50 to provide a plurality of selectable holding positions, which is convenient for the doctor to use.

In the present embodiment, the grip portion 50 is disposed at a middle front position of the housing 10, and the plurality of grooves 51 are symmetrically disposed at left and right sides of the grip portion 50. The housing 10 is formed by injection molding, and the groove 51 is integrally formed with the housing 10. The housing 10 is a split structure, and is composed of a left housing 10 and a right housing 10. The left shell 10 and the right shell 10 are fixed through a snap connection. The fasteners may further be provided with a sealant or a sealing ring to enhance the sealing performance of the cavity in the housing 10. The surgical smoke knife also includes an electrode 20 and a control circuit board 30, the electrode 20 and the control circuit board 30 being electrically connected and commonly disposed in a cavity inside the housing 10. The front end of the electrode 20 protrudes out of the front end of the casing 10 and is a working part of the surgical smoke suction knife. An exhaust duct is connected to the rear end of the housing 10. When the operation is carried out, negative pressure is formed in the exhaust pipe, and toxic smoke dust generated at the operation part is sucked from the front end of the operation smoke suction knife and then is sucked and exhausted by the exhaust pipe. The control circuit board 30 is used to control the start and stop of the operation of the electrodes 20 and the switching of the modes of electrotomy and electrocoagulation operation. The rear end of the control circuit board 30 is connected to a power supply cable. The upper surface of the holding part 50 of the housing 10 is provided with an operation button 31 corresponding to electro-cutting and electro-coagulation, and the operation button 31 passes through the housing 10 to contact the control circuit board 30. The operating button 31 is preferably a hard plastic made of ABS and/or PC. The upper surface of the operation button 31 is provided with anti-slip stripes or textures to enhance the anti-slip effect thereof.

As shown in fig. 6, preferably, the included angle between the first reference line 61 and the side wall of the holding portion 50 is smaller than the included angle between the second reference line 62 and the side wall of the holding portion 50, and the included angle between the first surface 64 and the side wall of the holding portion 50 is smaller than the included angle between the second surface 65 and the side wall of the holding portion 50. When the first surface 64, the second surface 65, or the sidewall is curved, the included angle is the angle between the tangents to their intersection locations. The present solution is defined by the size relationship of the included angle, such that the first surface 64 of the groove 51 is wider than the second surface 65, i.e. the two side surfaces of the groove 51, the front side (the first surface 64) is gentler, and the rear side (the second surface 65) is steeper. The asymmetric grooves 51 are more conformable to fingers pressed during gripping.

As shown in fig. 4, the first reference line 61 and the second reference line 62 preferably sweep the groove 51 from front to back and obliquely upward and linearly along the sidewall of the holding portion 50. The angled grooves 51 more closely conform to the angle at which the fingers of the surgical smoking blade are bent when held.

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

As shown in fig. 7, the depths of the first reference line 61 and the second reference line 62 gradually decrease from deep to shallow during the moving sweep of the sidewall of the holding portion 50. The first reference line 61 and the second reference line 62 are swept from the front to the rear, moving from the bottom to the top, so that the groove 51 of the lower portion of the sidewall of the grip 50 has a deeper depth. When the surgical smoking knife is held, the lower part of the holding part 50 is lapped on the middle finger of the doctor. The deeper groove 51 can better clamp the middle finger, and further improves the holding stability of the surgical smoking knife.

Preferably, the intersection end point of the first reference line 61 and the second reference line 62 is provided with a round corner 63, and the intersection position of the first surface 64 and the second surface 65 is provided with a third surface 66. The swept surface resulting from the movement of the rounded corner 63 over the sidewall of the grip portion 50 is the third surface 66 of the groove 51. The third surface 66 is used as a transition between the first surface 64 and the second surface 65, so that the surface of the groove 51 is smooth and has no edges, and the holding hand feeling of the surgical knife is further improved.

As shown in fig. 4, preferably, the grooves 51 include a first groove 52, a second groove 53 and a third groove 54 which are arranged in parallel from front to back, the depth of the first groove 52, the depth of the second groove 53 and the depth of the third groove 54 decrease in sequence, the width of the first groove 52, the width of the second groove 53 and the width of the third groove 54 increase in sequence, and the length of the first groove 52, the length of the second groove 53 and the length of the third groove 54 increase in sequence.

Preferably, the side wall of the grip part 50 or the surface of the groove 51 is provided with a non-slip material.

Preferably, the front portion of the holding portion 50 is provided with a downward projection 55, and the projection 55 smoothly transitions with the middle portion of the holding portion 50. When the smoking scalpel is held, the lower part of the holding part 50 is placed on the middle finger of the doctor. The boss 55 is located just forward of the middle finger, limiting further forward grip.

As shown in fig. 2, the width of the holding portion 50 is preferably gradually narrowed from the front to the back, and then gradually narrowed from the front to the back, and the width of the front portion of the holding portion 50 is greater than the width of the back portion of the holding portion 50. The slim grip 50 allows the master surgeon to more easily and stably grasp the posture of the surgical suction knife.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. An ergonomic design surgical smoke knife comprises a pencil-shaped housing; the portable electronic device is characterized in that 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.

2. The surgical smoke knife of claim 1, wherein the angle between the first reference line and the side wall of the grip portion is smaller than the angle between the second reference line and the side wall of the grip portion, and the angle between the first surface and the side wall of the grip portion is smaller than the angle between the second surface and the side wall of the grip portion.

3. An ergonomically designed surgical knife according to claim 1, wherein said first reference line and said second reference line sweep said indentation in a front-to-back, obliquely upward, linear motion in a sidewall of said grip.

4. An ergonomically designed surgical smoking blade according to claim 3, wherein said first reference line and said second reference line gradually change depth from deeper to shallower as the sidewall of said grip portion moves in a sweep.

5. An ergonomically designed surgical smoke knife according to claim 3, wherein the angle of inclination of said linear movement sweep is between 30 ° and 50 °.

6. An ergonomically designed surgical knife according to claim 1, wherein the intersection of said first reference line and said second reference line has rounded corners and the intersection of said first surface and said second surface has a third surface.

7. The surgical smoke knife with ergonomic design of claim 1, wherein the grooves comprise a first groove, a second groove and a third groove which are 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 progressively in sequence, the width of the first groove, the width of the second groove and the width of the third groove increase progressively in sequence, and the length of the first groove, the length of the second groove and the length of the third groove increase progressively in sequence.

8. An ergonomically designed surgical knife according to claim 1, wherein the side walls of the grip portion or the surface of the recess are provided with a non-slip material.

9. An ergonomically designed surgical smoking blade according to any one of claims 1-8, wherein the front portion of the grip portion has a downward projection which smoothly transitions into the middle portion of the grip portion.

10. An ergonomically designed surgical knife according to any one of claims 1-8, wherein the width of the grip portion gradually tapers from wider to narrower and then gradually tapers from narrower to wider from front to back, and the width of the front portion of the grip portion is greater than the width of the rear portion of the grip portion.

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