Electrocoagulation hook with rotating and stretching functions

Abstract

The utility model discloses an electrocoagulation hook with a rotary telescopic function, which belongs to the field of active medical instruments and comprises an electrocoagulation hook head, an electric hook rod, a rotating wheel, a shell, a blood coagulation cutting key, a push key, an external connection pipe, a connection switch, a sliding connection block and a rotary connection block. The rotating function of the electrocoagulation hook is achieved by driving the sliding connecting block and the rotating connecting block to rotate through the rotating wheel, and the telescopic function of the electrocoagulation hook is achieved by driving the rotating connecting block to move front and back through the push key. A user can operate with one hand, so that the operation is more comfortable, the operation time is indirectly shortened, and the operation risk is reduced.

Description

Technical Field

[0001] This utility model patent belongs to the field of active medical devices, especially an electrocoagulation hook with rotating and retractable functions. Background Art

[0002] At present, more and more open surgeries have been replaced by minimally invasive surgeries, which have many advantages, such as small surgical trauma, fast postoperative recovery, and beautiful abdominal incision scars. Therefore, minimally invasive surgery is an inevitable trend in the development of surgical methods in the future. In minimally invasive surgery, there are many situations where human tissue needs to be cut and coagulated. At this time, electric hooks are needed. Electric hooks are a surgical instrument with tissue separation, cutting and hemostasis functions. They are commonly used in thoracic surgery, urology, general surgery, and minimally invasive surgery. They use high-frequency currents to cut and stop bleeding in human tissues.

[0003] The electric hook of the electrocoagulation hook is retractable, but the knife bar cannot rotate. However, in actual surgery, the doctor needs to adjust the surgical angle to rotate the knife bar according to different conditions. However, since the handle has buttons for controlling cutting and coagulation, a large rotation angle will cause the buttons to move to an inconvenient position. Therefore, it is urgent to propose an electrocoagulation hook with a rotating and retractable function to solve the above problems. Utility Model Content

[0004] The utility model discloses an electric coagulation hook with rotating and telescopic functions. The device has the rotating and telescopic functions. The rotation and telescopic functions of the hook head are limited by arranging a sliding connection block and a rotating connection block. At the same time, the utility model charges the outer tube through the connection between the hook head and the outer tube, so that a larger area to be processed can be processed quickly, and the processing efficiency is improved. When the device is used, the handheld part does not need to be rotated, which improves the operating performance of the device.

[0005] The utility model discloses an electric coagulation hook with a rotating and telescopic function, comprising: an electric coagulation hook head, an electric hook rod, a rotating wheel, a shell, a cutting and coagulation button, a push button, an external tube, a connecting switch, a sliding connecting block and a rotating connecting block, characterized in that the rotating wheel is arranged at the front end of the shell, the electric hook rod passes through the rotating wheel and is longitudinally clamped with the shell, the cutting and coagulation button and the push button are arranged on the side of the shell, the external tube and the connecting switch are arranged at the rear end of the shell, the rotating wheel is fixedly connected with a sliding connecting block, and a rotating connecting block is longitudinally clamped with the rear of the sliding connecting block.

[0006] Preferably, the electric hook rod includes: an inner tube, an outer tube, and an insulating tube. The tail end of the electric coagulation hook head is fixedly connected to the inner tube, an electric hook insulating tube is provided in the middle of the electric coagulation hook head, the length of the hook at the front end of the electric coagulation hook head is greater than the diameter of the outer tube, an insulating layer is provided on the outside of the inner tube, the outer diameter of the inner tube corresponds to the inner diameter of the outer tube, an insulating tube is provided on the outside of the outer tube, the insulating tube wraps the outer tube from 2 mm at the front end of the outer tube to the rear, and the outer tube is fixedly connected to the rotating wheel.

[0007] Preferably, the sliding connection block is a circular tubular structure and a connecting head is provided at the front of the sliding connection block, the outer diameter of the connecting head corresponds to the inner diameter of the shell, and a "U"-shaped groove is provided at the rear of the sliding connection block.

[0008] Preferably, the rotating connecting block is a circular tubular structure, and the front part of the rotating connecting block is provided with a clamping block with the same width and corresponding position as the "U"-shaped groove, the outer diameter of the front part of the rotating connecting block corresponds to the inner diameter of the rear part of the sliding connecting block, and the rear part of the rotating connecting block is provided with a clamping ring, and the rotating connecting block is fixedly connected to the inner tube.

[0009] Preferably, the push button has a wave structure above and a slot below, the size of the slot corresponds to the first snap ring of the rotating connection block, and the first snap ring is longitudinally snap-connected with the slot.

[0010] Preferably, a sealing ring is provided at the junction between the front end of the sliding connection block and the outer tube.

[0011] Preferably, an elliptical groove is provided on the outer contour of the rotating wheel, and a second clamping ring is provided in the middle of the rotating wheel to be longitudinally clamped with the shell.

[0012] Preferably, anti-slip bumps are provided on the sides of the shell.

[0013] Beneficial Effects

[0014] The utility model realizes the rotation function and telescopic function of the electrocoagulation hook by arranging the sliding connection block and the rotating connection block to cooperate with each other. The operator does not need to rotate the handheld part when using it, and the functions are diversified to better meet the needs of use.

[0015] The utility model is more ergonomic, is conducive to the user's steady grip and precise operation, reduces the operator's operating steps, simplifies the operation, and frees the operator from the cumbersome shackles of repeated replacement of instruments, making the operation more precise and effective, avoiding blind operation, and achieving the effects of reducing bleeding, reducing surgical risks, and reducing surgical time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the electrocoagulation hook;

[0018] Figure 2 This is a schematic cross-sectional view of the electrocoagulation hook;

[0019] Figure 3 This is a schematic cross-sectional view of the electrocoagulation hook;

[0020] Figure 4 This is a schematic diagram of the structure of some components of the electrocoagulation hook;

[0021] Figure 5 This is a schematic cross-sectional view of part A of the electrocoagulation hook;

[0022] Figure 6 This is a schematic cross-sectional view of part B of the electrocoagulation hook;

[0023] Figure 7 This is a schematic cross-sectional view of part C of the electrocoagulation hook;

[0024] In the figure: 1. electrocoagulation hook head, 101. electrocoagulation hook insulating tube, 2. electrocoagulation rod, 201. inner tube, 202. outer tube, 203. insulating tube 1, 204. smoking port 3. rotating wheel, 301. clamping ring 2, 4. shell, 5. cutting and coagulation button, 6. push button, 7. sliding connection block, 701. connection head, 702. "U"-shaped groove, 8. rotating connection block, 801. clamping block, 802. clamping ring 1, 9. sealing ring, 10. connection switch, 11. external tube. DETAILED DESCRIPTION

[0025] The utility model discloses an electrocoagulation hook with a rotating and telescopic function, comprising: an electrocoagulation hook head 1, an electric hook rod 2, a rotating wheel 3, a shell 4, a cutting and coagulation button 5, a push button 6, an external tube 11 and a connecting switch 10. The rotating wheel 3 is arranged at the front end of the shell 4 and is longitudinally clamped with the shell 4. After clamping, the rotating wheel 3 can rotate laterally relative to the shell 4. The outer tube 202 of the electric hook rod 2 is fixedly connected with the rotating wheel 3 in the rotating wheel 3. The cutting and coagulation button 5 and the push button 6 are arranged at the front end of the side of the shell 4. When the user operates, the thumb can touch the cutting and coagulation button 5 and the push button 6. The external tube 11 and the connecting switch 10 are arranged at the rear end of the shell 4 and are connected to the high-frequency electric knife device. The rotating wheel 3 is fixedly connected with a sliding connection block 7. A rotating connection block 8 is longitudinally clamped behind the sliding connection block 7. The rotating connection block 8 can move forward and backward relative to the sliding connection block 7. The rotation of the rotating wheel 3 drives the sliding connection block 7 and the rotating connection block 8 to rotate relative to each other, thereby realizing the rotation of the hook head.

[0026] In some embodiments, the electric hook rod 2 includes: an inner tube 201, an outer tube 202, and an insulating tube 203. The tail end of the electric coagulation hook head 1 is fixedly connected to the inner tube 201. The movement of the inner tube 201 drives the electric coagulation to move. An electric hook insulating tube 101 is provided in the middle of the electric coagulation hook head 1. After the electric hook insulating tube 101 is wrapped, the inner tube 201 and the outer tube 202 are not connected due to accidental touch, and the gap on the side where the inner tube 201 and the outer tube 202 are connected is reduced by the electric hook insulating tube 101. The length of the hook at the front end of the electric coagulation hook head 1 is greater than the diameter of the outer tube 202. When the inner tube 201 is retracted, the hook at the front end of the electric coagulation hook head will not enter the cavity of the outer tube 202. The inner tube 2 An insulating layer is provided on the outside of 01 to isolate the outer tube 202 from contacting and conducting the outer tube 202. The outer diameter corresponds to the inner diameter of the outer tube 202. An insulating tube 203 is provided on the outside of the outer tube 202. The insulating tube 203 wraps the outer tube 202 from 2 mm at the front end of the outer tube 202 to the back, so that the front end of the outer tube 202 is exposed to the outside and can contact the hook at the front end of the hook head. A smoking port 204 is provided at the front end of the inner tube 201. When the device is connected to a high-frequency electric knife device, the high-frequency electric knife device uses negative pressure to allow the smoke generated during the cutting process to be sucked into the high-frequency electric knife device through the smoking port 204 to prevent the smoke from contaminating the wound or blocking the line of sight and affecting the operation.

[0027] In some embodiments, the sliding connection block 7 is a circular tubular structure and a connecting head 701 is provided at the front of the sliding connection block 7. The front end of the connecting head 701 is fixedly connected to the rotating wheel 3. The outer diameter of the connecting head 701 corresponds to the inner diameter of the shell 4, so that the sliding connection block 7 will not get stuck in the shell 4 due to eccentricity when rotating. A "U"-shaped groove 702 is provided at the tail of the sliding connection block 7.

[0028] In some embodiments, the rotating connecting block 8 is a circular tubular structure, and a clamping block 801 with the same width and corresponding position as the "U"-shaped groove 702 is provided at the front of the rotating connecting block 8. The clamping block 801 is clamped with the "U"-shaped groove 702, and the clamping block 801 can reciprocate in the "U"-shaped groove 702. The outer diameter of the front of the rotating connecting block 8 corresponds to the inner diameter of the rear of the sliding connecting block 7, so that the clamping block 801 can reciprocate in the "U"-shaped groove 702. A clamping ring 802 is provided at the rear of the rotating connecting block 8. The rotating connecting block 8 is fixedly connected to the inner tube 201, and the movement of the rotating connecting block 8 drives the inner tube 201 to move.

[0029] In some embodiments, the push button 6 has a wavy structure above and a slot below, the size of the slot corresponds to the snap ring of the rotating connecting block 8, that is, the push button 6 is longitudinally snapped with the rotating connecting block 8, and the push button 6 moves forward and backward, driving the rotating connecting block 8 to move forward and backward, and the rotation of the rotating connecting block 8 will not drive the push button 6 to rotate.

[0030] In some embodiments, a sealing ring 9 is provided at the junction of the front end of the sliding connection block 7 and the outer tube 202 to seal the runner 3, the insulating tube 203, the outer tube 202 and the inner tube 201 to prevent smoke from escaping from the gap.

[0031] In some embodiments, an elliptical groove is provided on the outer contour of the wheel 3 to facilitate the operator to rotate the wheel 3. A second clamping ring 301 is provided at the tail of the wheel 3 to longitudinally clamp the shell 4 to limit the wheel 3 in the horizontal direction, and the wheel 3 can rotate relative to the shell 4.

[0032] In some embodiments, anti-slip bumps are provided on the side of the housing 4 to facilitate operation.

[0033] Example 1

[0034] An embodiment of the utility model is provided, such as Figure 1-7 As shown, when using, the external tube 11 at the tail end of the electrocoagulation hook must be connected to the high-frequency electrosurgical device to provide electrical energy and negative pressure suction for the electrocoagulation hook, turn on the high-frequency electrosurgical device, and set the electrocoagulation mode. The user presses the push button 6 to adjust the position of the push button 6. The movement of the push button 6 drives the rotating connecting block 8 to move back and forth. The rotating connecting block 8 drives the inner tube 201 and the hook head to move back and forth. After the user adjusts the position of the hook head, use the hook head to slowly approach the area to be treated to avoid causing unnecessary damage to the surrounding tissues. Press the cutting and coagulation button 5 to treat the area to be treated. At the same time, the negative pressure in the high-frequency electrosurgical device acts on the smoke. The mist is sucked into the high-frequency electrosurgical device along the inner tube 201 through the smoking port 204. A sealing ring 9 is provided at the junction of the front end of the sliding connection block 7 and the outer tube 202 to keep the electrocoagulation hook airtight and prevent smoke from escaping from the gap in the shell 4. When it is necessary to rotate the direction of the hook head, the rotating wheel 3 is rotated, and the rotating wheel 3 drives the sliding connection block 7 to rotate. Since the blocking block 801 is in the "U"-shaped groove 702, the sliding connection block 7 drives the rotating connection block 8 to rotate. After the electrocoagulation is completed, the start button is released and the electrocoagulation stops. After use, the electrocoagulation hook is cleaned and stored in an appropriate container to complete the use of the electrocoagulation hook.

[0035] Example 2

[0036] An embodiment of the utility model is provided, such as Figure 1-5 As shown, in Example 1, when the area to be processed is large, the hook part at the front end of the hook head is adjusted to be retracted backward to contact the outer tube 202 so that the outer tube 202 is charged. At this time, a cutting part is formed at the front end of the outer tube 202, and the cutting contact area of ​​the outer tube 202 is larger than the cutting contact area of ​​the hook head, which is conducive to speeding up the cutting speed.

[0037] Example 3

[0038] An embodiment of the utility model is provided, in which a plurality of strip grooves may be provided on the inner side of the tube diameter of the sliding connection block 7 of the utility model, and a protrusion corresponding to the strip groove of the sliding connection block 7 is provided on the outer diameter of the rotating connection block 8, so that the rotating connection block 8 can make reciprocating motion in the sliding connection block 7, and the sliding connection block 7 is matched with the rotating connection block so that the rotating connection block 8 and the sliding connection block 7 rotate at the same frequency, and the rotating connection block 8 moves forward and backward, driving the inner tube 201 to move forward and backward, thereby realizing the telescopic function and rotation function of the electrocoagulation hook.

Claims

1. An electrocoagulation hook with a rotating and retractable function, comprising: The electrocoagulation hook head, the electric hook rod, the rotating wheel, the shell, the cutting and coagulation button, the push button, the external tube, the connecting switch, the sliding connecting block and the rotating connecting block are characterized in that the rotating wheel is arranged at the front end of the shell, the electric hook rod passes through the rotating wheel and is longitudinally clamped with the shell, the cutting and coagulation button and the push button are arranged on the side of the shell, the external tube and the connecting switch are arranged at the rear end of the shell, the rotating wheel is fixedly connected with the sliding connecting block, and the rotating connecting block is longitudinally clamped with the rear of the sliding connecting block.

2. The electrocoagulation hook with rotating and retracting function according to claim 1, characterized in that: The electric hook rod includes: an inner tube, an outer tube, and an insulating tube. The tail end of the electric coagulation hook head is fixedly connected to the inner tube, an electric hook insulating tube is provided in the middle of the electric coagulation hook head, the length of the hook at the front end of the electric coagulation hook head is greater than the diameter of the outer tube, an insulating layer is provided on the outside of the inner tube, the outer diameter of the inner tube corresponds to the inner diameter of the outer tube, an insulating tube is provided on the outside of the outer tube, the insulating tube wraps the outer tube from 2 mm at the front end of the outer tube to the back, and the outer tube is fixedly connected to the rotating wheel.

3. The electrocoagulation hook with rotating and retracting function according to claim 1, characterized in that: The sliding connection block is a circular tubular structure and a connecting head is provided at the front of the sliding connection block. The outer diameter of the connecting head corresponds to the inner diameter of the shell, and a "U"-shaped groove is provided at the rear of the sliding connection block.

4. The electrocoagulation hook with rotating and retracting function according to claim 1, characterized in that: The rotating connection block is a circular tubular structure, and a clamping block with the same width and corresponding position as the "U"-shaped groove is provided at the front of the rotating connection block. The outer diameter of the front of the rotating connection block corresponds to the inner diameter of the rear of the sliding connection block. A clamping ring is provided at the rear of the rotating connection block, and the rotating connection block is fixedly connected to the inner tube.

5. The electrocoagulation hook with rotating and retracting function according to claim 1, characterized in that: The push button has a wave structure on the top and a clamping groove on the bottom. The size of the clamping groove corresponds to the clamping ring 1 of the rotating connecting block, and the clamping ring 1 is longitudinally clamped with the clamping groove.

6. The electrocoagulation hook with rotating and retracting function according to claim 1, characterized in that: A sealing ring is provided at the junction between the front end of the sliding connection block and the outer tube.

7. The electrocoagulation hook with rotating and retracting function according to claim 1, characterized in that: An elliptical groove is arranged on the outer contour of the rotating wheel, and a second clamping ring is arranged in the middle of the rotating wheel to be longitudinally clamped with the shell.

8. The electrocoagulation hook with rotating and retracting function according to claim 1, characterized in that: Anti-slip convex points are arranged on the side of the shell.

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