CN111407399A - A retractable self-cleaning electric knife pen - Google Patents

Abstract

The invention discloses a telescopic self-cleaning electric knife pen, which comprises a pen body, wherein a movable cavity is arranged in the pen body, the upper end of the movable cavity is provided with a rotating cylinder, the inner wall of the rotating cylinder is provided with internal threads, a telescopic cylinder is arranged in the rotating cylinder, and the rotating cylinder is in threaded connection with the telescopic cylinder; the upper end of the rotating cylinder is connected with a rotating shaft of a driving motor, and the driving motor is fixed in the pen body; the lower end of the telescopic cylinder is provided with a cutter head, the lower end of the pen body is provided with a cleaning mechanism, the cutter head can stretch and penetrate through the cleaning mechanism, and the cutter head extends out of the cleaning mechanism; a sliding groove is arranged below the movable cavity, and a protruding part matched with the sliding groove is arranged at the lower end of the telescopic cylinder. According to the invention, the device for cleaning the tool bit is arranged on the pen body, so that the pen body can effectively self-clean the burnt tissue on the tool bit, and the operation is simple, efficient and convenient. And the length of the cutter head can be freely extended and retracted, so that the multifunctional scalpel is suitable for different requirements of operation wounds and cutter head depths.

Description

A retractable self-cleaning electric knife pen

technical field

The invention relates to the technical field of medical instruments, in particular to a retractable self-cleaning electric knife pen.

Background technique

During the operation, the electric knife pen often encounters the situation that the incision is small, the position is deep, and the shadowless lamp cannot illuminate the surgical site; the electric knife head often adheres to a lot of scorched tissue. However, the cleaning effect is not good, and cleaning in the middle of the operation is very time-consuming and seriously affects the progress of the operation; when counting, the number and integrity of the cleaning tablets must be strictly counted, otherwise there is a risk of dropping the cleaning tablets into the patient's body cavity.

SUMMARY OF THE INVENTION

In view of the above deficiencies of the prior art, the present invention provides a retractable self-cleaning electric knife pen which is convenient for cleaning the cutter head at any time during the operation.

In order to achieve the above-mentioned purpose of the invention, the technical scheme adopted in the present invention is:

A retractable self-cleaning electric knife pen is provided, which comprises a pen body, a movable cavity is arranged in the pen body, a rotating cylinder is arranged on the upper end of the movable cavity, an inner thread is arranged on the inner wall of the rotating cylinder, a telescopic cylinder is arranged in the rotating cylinder, and the rotating cylinder It is threadedly connected with the telescopic cylinder; the upper end of the rotating cylinder is connected with the rotating shaft of the driving motor, and the driving motor is fixed in the pen body; Inside the mechanism, and the cutter head extends out of the cleaning mechanism; a chute is arranged under the movable cavity, and a protruding part matched with the chute is arranged at the lower end of the telescopic cylinder.

The invention drives the rotating cylinder to rotate through the rotation of the drive motor shaft. Since the interior of the rotating cylinder and the outer wall of the telescopic cylinder are matched with threads, the telescopic cylinder expands and contracts during the rotation process, thereby driving the cutter head to expand and contract; The control is realized, the operation is simple and convenient, and the cutter head can be freely extended and retracted according to the needs. The rotating cylinder is threaded with the telescopic cylinder, and the position of the telescopic cylinder is limited by the chute and the protruding part, so that the cutter head can be stably and reliably retracted. The cleaning mechanism is used to clean the cutter head. As long as the cutter head is controlled to expand and contract once, the cutter head can be cleaned quickly. The operation is simple and the operation difficulty is greatly reduced.

Further, the cleaning mechanism includes an outer casing, a passage for the cutter head to pass through is arranged in the outer casing, a scraper for cleaning the cutter head is arranged in the passage, and the scraper and the cutter head are intermittently arranged.

In this solution, the blade is used to clean the cutter head. During the expansion and contraction of the cutter head, the scraper scrapes off the burnt tissue on the cutter head. The cleaning effect is good, and the expansion and contraction of the cutter head is not hindered.

Further, the scraper has two semicircular structures, the two scrapers are arranged in a staggered manner in the extending direction of the cutter head, and the two scraper blades wrap the cutter head.

The two pieces of this scheme can completely wrap the outer circumference of the cutter head to achieve the cleaning effect without dead ends.

Further, the scraper is installed on the fixing seat, the fixing seat is movably arranged in the installation groove, and a spring is arranged between the fixing seat and the bottom of the installation groove.

In this scheme, the scraper can be close to the cutter head by setting the spring, without affecting the expansion and contraction of the cutter head. Due to the action of the spring, when the cutter head is stretched to the small diameter end of the cutter tip, the two scrapers can automatically shrink to ensure that the Complete cleaning is also possible on the small diameter end.

Further, the upper end of the cutter head is fixed on the electric chuck, the electric chuck is mounted on the circuit board, and the circuit board is connected to the external power line through the wire and energized.

The electric chuck of this solution can realize the transmission of electric energy while realizing the fixing of the cutter head. The circuit board obtains electric energy through the internal wiring, and the wires pass through the rotating cylinder and the telescopic cylinder, and reserve enough in the rotating cylinder. extension length.

Further, the electric chuck is cylindrical, a plurality of arc-shaped elastic pieces are arranged in the electric chuck, and the elastic pieces and the cutter head have several contact points.

In this solution, a cylindrical collet is used to clamp the cutter head, the fixing effect is good, and the multiple electrical contact points can realize stable electrical transmission.

Further, a circle of LED light strips are arranged on the outer circumference of the cleaning mechanism, and the LED light strips are encapsulated in high temperature resistant transparent glass.

The LED light strip of this scheme can provide illumination during the operation. When encountering a small incision and a deep surgical field, it can make up for the shortage of the shadowless lamp that cannot illuminate the surgical field, so that the surgeon can clearly see the inside of the surgical wound. Improve the accuracy of operation; and can effectively prevent the damage of the LED light strip caused by the high temperature of the cutter head.

Further, the end of the pen body is provided with a smoking port, the smoking port is connected with the smoke outlet through the smoke channel, the smoking port is set as a shutter with an upward opening, the smoke outlet is connected to the smoke exhaust pipe through a detachable joint, and the smoke exhaust pipe is connected. The smoking machine, and the smoke exhaust pipe is fixed on the outer wall of the pen through the pipe clamp.

The smoking port of this scheme can effectively absorb the smoke generated by the operation, and the smoking port adopts a shutter with an upward opening, which can effectively prevent tissue particles from entering the smoking port and blocking the pipe when the cutter head is cutting; when the smoke exhaust function is not used, the smoke exhaust pipe can be removed. Dismantling, when using, the smoke exhaust pipe is clamped and stuck to the outer wall of the pen through the pipe to avoid hindering the operation.

Further, a bearing is provided between the lower end of the rotating cylinder and the movable cylinder.

The bearing of this scheme provides support for the rotating cylinder in the movable cavity, so that the rotating cylinder can rotate stably under the driving of the motor and prevent shaking.

The beneficial effects of the present invention are: the device for cleaning the cutter head is arranged on the pen body, the pen body can effectively clean the burnt tissue on the cutter head, and the operation is simple, efficient and convenient. And the length of the cutter head can be freely retracted, which is suitable for different surgical wounds and depth of the cutter head.

Description of drawings

Figure 1 is a structural diagram of a retractable self-cleaning electric knife pen.

FIG. 2 is a structural diagram of a cleaning mechanism.

Figure 3 is a schematic diagram of the installation of the blade.

FIG. 4 is a structural diagram of a smoking port.

FIG. 5 is a structural diagram of an electric chuck.

Among them, 1. Pen body, 2. Drive motor, 3. Rotary cylinder, 4. Active cavity, 5. Telescopic cylinder, 6. Electric chuck, 7. Shrapnel, 8. Cutter head, 9. Cleaning mechanism, 10. Smoking mouth, 11, flue gas passage, 12, chute, 13, bearing, 14, smoking pipe, 15, pipe clamp, 16, circuit board, 17, scraper, 18, fixing seat, 19, spring, 20, LED light bring.

Detailed ways

The specific embodiments of the present invention are described below to facilitate those skilled in the art to understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Such changes are obvious within the spirit and scope of the present invention as defined and determined by the appended claims, and all inventions and creations utilizing the inventive concept are within the scope of protection.

As shown in FIG. 1 , the telescopic self-cleaning electric knife pen includes a pen body 1 , a movable cavity 4 is arranged in the pen body 1 , and a rotating cylinder 3 is arranged at the upper end of the movable cavity 4 , and the rotating cylinder 3 can freely rotate in the movable cavity 4 , The inner wall of the cylinder 3 is provided with an internal thread, the rotating cylinder 3 is provided with a telescopic cylinder 5, and the rotating cylinder 3 is threadedly connected with the inner wall of the telescopic cylinder 5; the upper end of the rotating cylinder 3 is fixedly connected with the rotating shaft of the driving motor 2, and the driving motor 2 is fixed in the pen body 1.

The lower end of the telescopic cylinder 5 is provided with a cutter head 8, and the lower end of the pen body 1 is provided with a cleaning mechanism 9. The cutter head 8 can retractably pass through the interior of the cleaning mechanism 9 and extend out of the cleaning mechanism 9; a chute is provided below the movable cavity 4 12. The outer edge of the lower end of the telescopic cylinder 5 is provided with a protruding portion that cooperates with the chute 12, and the protruding portion slides in the chute 12.

The outside of the pen body 1 is provided with an extension button, a contraction button, a cleaning button, an electric cut function button, a coagulation function button and a cleaning function button, and the extension button, the contraction button, the cleaning button, the electric cut function button, the electric coagulation function button. Buttons and cleaning function buttons are installed on the PCB board for control.

In the present invention, the rotation of the rotating shaft of the driving motor 2 drives the rotating cylinder 3 to rotate. Since the interior of the rotating cylinder 3 and the outer wall of the telescopic cylinder 5 are threaded, the telescopic cylinder 5 expands and contracts during the rotation, and then drives the cutter head 8 to expand and contract; Press the extension button and the retraction button to realize the control, the operation is simple and convenient, and the cutter head 8 can be freely extended and retracted according to the needs. The rotating cylinder 3 is threadedly matched with the telescopic cylinder 5, and the telescopic cylinder 5 is limited by the chute 12 and the protruding part, so that the cutter head 8 can be stably and reliably retracted. The cleaning mechanism 9 is used to clean the cutter head 8. When cleaning, press the cleaning button once and control the cutter head 8 to expand and contract once, which can quickly clean the cutter head 8, and the operation is simple, which greatly reduces the difficulty of operation.

As shown in FIG. 2 and FIG. 3 , the cleaning mechanism 9 includes an outer casing, which is provided with a passage for the cutter head 8 to pass through, and a scraper 17 for cleaning the cutter head 8 is arranged in the passage, and the blade 17 is intermittent with the cutter head 8 set up. The cutter head 8 is cleaned by the scraper blade 17 . During the expansion and contraction of the cutter head 8 , the scraper blade 17 scrapes off the burnt tissue on the cutter head 8 , and the cleaning effect is good, and the expansion and contraction of the cutter head 8 is not hindered.

The scraping blades 17 are two semicircular structures, the two scraping blades 17 are staggered in the extending direction of the cutter head 8 , and the two scraping blades 17 wrap the cutter head 8 . The two scrapers 17 can completely wrap the outer circumference of the cutter head 8 to achieve a cleaning effect without dead ends.

The scraper 17 is installed on the fixed seat 18, the fixed seat 18 is movably arranged in the installation groove, and a spring 19 is arranged between the fixed seat 18 and the bottom of the installation groove. By setting the spring 19, the scraper 17 can be close to the cutter head 8 without affecting the expansion and contraction of the cutter head 8. Due to the action of the spring 19, when the cutter head 8 is stretched to the small diameter end of the cutter tip, the two scrapers 17 It retracts automatically and fits snugly against the tip of the blade, ensuring complete cleaning of the small diameter end.

As shown in FIG. 5 , the upper end of the cutter head 8 is fixed on the electric chuck 6 , and the electric chuck 6 is mounted on the circuit board 16 , and the circuit board 16 is connected to the external power supply line through wires and energized. The electric chuck 6 not only realizes the fixing of the cutter head 8, but also realizes the transmission of electric energy. The circuit board 16 obtains electric energy through the internal wiring, and the wires pass through the rotating cylinder 3 and the telescopic cylinder 5, and are in the rotating cylinder 3. Reserve enough telescopic length.

The electric chuck 6 is cylindrical, and a plurality of arc-shaped elastic pieces 7 are arranged in the electric chuck 6 , and the elastic pieces 7 and the cutter head 8 have a plurality of contact points. The cylindrical electric chuck 6 is used to clamp the cutter head 8, the fixing effect is good, and the multiple electric contact points can realize stable electric transmission.

A circle of LED light strips 20 is arranged on the outer circumference of the cleaning mechanism 9, and the LED light strips 20 are encapsulated in high temperature resistant transparent glass; the LED light strips 20 provide illumination during the operation, and when encountering a small incision and a deep surgical field , to make up for the insufficiency of the shadowless lamp not being able to illuminate the surgical field, so that the surgeon can clearly see the inside of the surgical wound and improve the accuracy of the operation; and it can effectively prevent the high temperature of the cutter head 8 from working on the LED light strip 20.

As shown in FIG. 4, the end of the pen body 1 is provided with a smoking port 10, the smoking port 10 is opened on the side, and the smoking port 10 is connected with the smoke outlet through a smoke channel 11, and the smoke channel 11 is in the pen body 1, and smoking The mouth 10 is arranged as a shutter with an upward opening, the smoke outlet is connected to a smoke exhaust pipe through a detachable joint, and the smoke exhaust pipe is connected to a smoking machine. superior.

The smoking port 10 of this scheme can effectively absorb the smoke generated by the operation, and the smoking port 10 adopts the louver with an upward opening, which can effectively prevent tissue particles from entering the smoking port 10 when the cutter head 8 cuts, and block the pipe; when the smoke exhaust function is not used, The smoke exhaust pipe is detachable, and when in use, the smoke exhaust pipe is closely attached to the outer wall of the pen body 1 through the pipe clamp 15 to avoid hindering the operation.

A bearing 13 is arranged between the lower end of the rotating cylinder 3 and the movable cavity 4, and the bearing 13 provides support for the rotating cylinder 3 in the movable cavity 4, so that the rotating cylinder 3 can rotate stably under the driving of the driving motor 2 and prevent shaking.

In the present invention, by disposing the device for cleaning the cutter head 8 on the pen body 1, the pen body 1 can effectively self-clean the burnt tissue on the cutter head 8, and the operation is simple, efficient and convenient. And the length of the cutter head 8 can be freely retracted, which is suitable for different surgical wounds and the depth of the cutter head 8 .

Claims (9)

1. The telescopic self-cleaning electric knife pen is characterized by comprising a pen body (1), wherein a movable cavity (4) is arranged in the pen body (1), a rotating cylinder (3) is arranged at the upper end of the movable cavity (4), internal threads are arranged on the inner wall of the rotating cylinder (3), a telescopic cylinder (5) is arranged in the rotating cylinder (3), and the rotating cylinder (3) is in threaded connection with the telescopic cylinder (5); the upper end of the rotating cylinder (3) is connected with a rotating shaft of the driving motor (2), and the driving motor (2) is fixed in the pen body (1); a cutter head (8) is mounted at the lower end of the telescopic cylinder (5), a cleaning mechanism (9) is arranged at the lower end of the pen body (1), the cutter head (8) can telescopically penetrate through the cleaning mechanism (9), and the cutter head (8) extends out of the cleaning mechanism (9); a sliding groove (12) is arranged below the movable cavity (4), and a protruding part matched with the sliding groove (12) is arranged at the lower end of the telescopic cylinder (5).

2. The retractable self-cleaning electric knife pen according to claim 1, characterized in that the cleaning mechanism (9) comprises an outer housing, a channel is arranged in the outer housing for the knife head (8) to pass through, a scraping blade (17) for cleaning the knife head (8) is arranged in the channel, and the scraping blade (17) is arranged intermittently with the knife head (8).

3. The retractable self-cleaning electric knife pen as claimed in claim 2, characterized in that the scraping blades (17) are two semicircular structures, the two scraping blades (17) are arranged in a staggered manner in the extending direction of the knife head (8), and the two scraping blades (17) wrap the knife head (8).

4. The retractable self-cleaning electric knife pen according to claim 3, characterized in that the scraping blade (17) is mounted on a fixed seat (18), the fixed seat (18) is movably arranged in the mounting groove, and a spring (19) is arranged between the fixed seat (18) and the bottom of the mounting groove.

5. The retractable self-cleaning electric knife pen according to claim 1, characterized in that the upper end of the knife head (8) is fixed on an electric chuck (6), the electric chuck (6) is mounted on a circuit board (16), and the circuit board (16) is connected with an external power line through a wire for power supply.

6. The retractable self-cleaning electric knife pen according to claim 5, characterized in that the electric chuck (6) is cylindrical, a plurality of arc-shaped elastic sheets (7) are arranged in the electric chuck (6), and the elastic sheets (7) have a plurality of contact points with the knife head (8).

7. Retractable self-cleaning electrical pencil according to claim 1 characterized in that a ring of L ED light strips (20) is arranged on the outer circumference of said cleaning means (9), said L ED light strips (20) being encapsulated in a high temperature resistant transparent glass.

8. The retractable self-cleaning electric knife pen as claimed in claim 1, characterized in that the end of the pen body (1) is provided with a smoke suction port (10), the smoke suction port (10) is connected with a smoke outlet through a smoke channel (11), the smoke suction port (10) is arranged as a shutter with an upward opening, the smoke outlet is connected with a smoke exhaust pipeline through a detachable joint, the smoke exhaust pipeline is connected with a smoke extractor, and the smoke exhaust pipeline is fixed on the outer wall of the pen body (1) through a pipe clamp (15).

9. The retractable self-cleaning electric knife pen according to claim 1, characterized in that a bearing (13) is arranged between the lower end of the rotary cylinder (3) and the movable chamber (4).

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