Foot-controlled electric hook with bendable hook rod

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a foot-controlled electric hook with a bendable hook rod. The foot-controlled electric hook comprises a hook head part, a functional tube and a handle which are connected in sequence, the hook head part, the driving elastic sheet, the driving inner rod, the driving inner rod positioning piece and the power line are electrically connected in sequence to form a loop; the hook head part, the metal snake bone, the outer pipe, the outer pipe sliding bracket, the driving inner rod positioning piece and the power line are electrically connected in sequence to form another loop; the hook head part is divided into a hook head base and a hook head. The alloy steel hook head can prevent scabbing and adhesion during electric coagulation operation, and the unique design of the hook head ensures the cutting efficiency. An ergonomic handle and an umbrella handle type handle can be fully held, the holding angle of the handle can be flexibly and freely adjusted, then the orientation of the hook head is adjusted, holding is more sufficient, and operation is more accurate. The bending structure of the metal snake bone enables the hook rod to be bent more stably. Foot-controlled electrocoagulation and electroresection are realized, and a fixed degree of freedom of a rotatable angle during key operation is liberated.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a foot-controlled electric hook with a bendable hook rod. Background Art

[0002] With the widespread use of single-port multi-channel surgical procedures in clinical practice, the research and development of surgical instruments suitable for single-port multi-channel surgery is becoming increasingly important.

[0003] Traditional minimally invasive abdominal surgery: Use a single-hole puncture device to puncture the abdominal cavity to establish 2 to 5 channels. The general uses of the channels are: 1. Laparoscopic channel; 2 and 3. Abdominal surgical instrument channels; 4 and 5. Auxiliary grasping forceps, titanium clamps and other instrument channels.

[0004] Single-port multi-channel minimally invasive abdominal surgery: an incision is made at the navel position, a single-port multi-channel puncture device is inserted, and surgical instruments are inserted using multiple sealing valves at the upper end of the single-port multi-channel puncture device.

[0005] The advantages of single-port multi-channel trocars are: a single incision is required, the injury site is single, and recovery is rapid. However, the disadvantages are: surgical instruments enter the abdominal cavity from a single point, making simultaneous entry of multiple traditional straight-rod surgical instruments prone to interference. Because the single-port multi-channel trocar is structurally nearly 30mm taller than a single-port single-channel trocar, traditional surgical instruments cannot fully cover the entire abdominal surgical area. Most importantly, because the single-port multi-channel trocar opening is located at the same level as the navel, traditional instruments cannot fully access the entire area during procedures involving peripheral organs such as the kidney.

[0006] CN221357115U discloses an electric hook with a bendable hook rod. The structure disclosed includes a hook head, a hook rod, and a handle connected in sequence. The handle has a built-in control panel, and the hook rod includes a bending assembly and an outer tube. The bending assembly is arranged at the front end of the outer tube, and the hook head is connected to the bending assembly and the outer tube in sequence. The outer end of the outer tube is provided with a knob and an outer tube sliding bracket in sequence. The knob and the outer tube sliding bracket are connected by a serrated meshing connection. A drive assembly is arranged inside the outer tube, and the front end of the drive assembly is connected to the hook head. The end of the drive assembly is connected to the control panel via a conductive spring. The end of the drive assembly is fixed in the handle. The outer tube sliding bracket is fixedly connected to the outer tube, and a gap is provided between the outer tube and the inner periphery of the knob. However, this solution has a limited operating angle of the handle, making it difficult to adjust the direction of the hook head, making it inconvenient to operate. Utility Model Content

[0007] Based on the shortcomings of the existing single-port multi-channel technology, the present invention designs a foot-controlled electric hook with a bendable hook rod that is more suitable for single-port multi-channel. The hook rod can be bent by one hand and enters the abdominal cavity through the single-port multi-channel without interference due to cross-operation. Three hook rod lengths are designed: 330mm, 360mm, and 420mm, fully meeting the needs of single-port multi-channel procedures and people of different body types. The length and bendability can fully achieve full-range abdominal surgery. When holding a special handle shape, the angle of the handle can be adjusted flexibly and freely, thereby adjusting the direction of the hook head, making the grip more complete and the operation more precise.

[0008] The above-mentioned purpose of the utility model is achieved through the following technical solutions:

[0009] A foot-controlled electric hook with a bendable hook rod comprises a hook head part, a functional tube, and a handle connected in sequence; the hook head part, a driving spring, a driving inner rod, a driving inner rod positioning piece, and a power cord are electrically connected in sequence to form a loop; the hook head part, a metal snake bone, an outer tube, an outer tube sliding bracket, a driving inner rod positioning piece, and a power cord are electrically connected in sequence to form another loop; the hook head part is split into a hook head base and a hook head.

[0010] Furthermore, the electric hook with a bendable hook rod and the foot-controlled switch controller are electrically connected to the high-frequency electric knife host respectively.

[0011] Furthermore, the foot switch controller is provided with an electric cutting switch and an electric coagulation switch.

[0012] Furthermore, the handle is an umbrella handle.

[0013] Furthermore, the handle can be held at a 360° angle without any blind spots.

[0014] Furthermore, there are "straight" and "bend" steering marks at the tip of the handle, which prompts that when the driving wheel is rotated to the left, the functional tube is straightened; and when the driving wheel is rotated to the right, the functional tube is bent.

[0015] Furthermore, the hook head is made of alloy steel.

[0016] Furthermore, the outer diameters of the hook head and the functional tube are the same.

[0017] Furthermore, the maximum bending angle of each section of the metal snake bone is 10°, and the maximum bending angle of four sections is 40°.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Alloy steel hook head, prevents scab and adhesion during anti-coagulation operation, and unique hook head design ensures cutting efficiency.

[0020] 2. The ergonomic, umbrella-style handle provides a full grip and allows for flexible and free adjustment of the handle angle, thereby adjusting the hook head's orientation for a fuller grip and more precise operation. The handle tip features "straight" and "curved" direction indicators, indicating that turning the drive wheel to the left straightens the functional tube, while turning the drive wheel to the right bends the functional tube, making it more intuitive.

[0021] 3. The curved structure of the metal snake bone makes the hook rod bend more stable.

[0022] 4. Foot-controlled electrocoagulation and electrocuting, which frees the operator to rotate at a fixed angle when operating with buttons. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a schematic diagram of the structure of the utility model's foot-controlled electric hook with a bendable hook rod;

[0025] Figure 2 It is a cross-sectional view of the utility model;

[0026] Figure 3 yes Figure 2 A partial enlarged view of

[0027] Figure 4 It is a top view of the utility model;

[0028] Figure 5 yes Figure 4 A partial enlarged view of

[0029] Figure 6 This is a schematic diagram of the on-site connection of the high-frequency electrosurgical unit;

[0030] Figure 7 This is a foot switch connection diagram.

[0031] Among them: 1. Hook head; 2. Function tube; 3. Driving wheel; 4. Handle; 5. Power cord; 6. Pin; 7. Metal snake bone; 8. Driving shrapnel; 9. Driving inner rod; 10. Outer tube; 11. Outer tube sliding bracket; 12. Driving inner rod positioning piece; 13. Hook head base; 14. Power switch; 15. Triangular socket; 16. Power cord plug position; 17. High-frequency electric knife main unit; 18. Electrode plate jack; 19. Disposable neutral electrode plate; 20. Electric hook with bendable hook rod; 21. Foot switch controller; 22. Electric cutting switch; 23. Electric coagulation switch. DETAILED DESCRIPTION

[0032] The present invention is further described below with reference to the accompanying drawings, but the present invention is not limited to the following embodiments.

[0033] Example 1

[0034] The structure of the present utility model includes a hook head part, a functional tube 2, and a handle 4 connected in sequence; the hook head part, a driving spring piece 8, a driving inner rod 9, a driving inner rod positioning piece 12 and a power cord 5 are electrically connected in sequence to form a loop; the hook head part, a metal snake bone 7, an outer tube 10, an outer tube sliding bracket 11, a driving inner rod positioning piece 12 and a power cord are electrically connected in sequence to form another loop; the hook head part is not integrally formed, but is composed of a hook head base 13 and a hook head 1.

[0035] Further explanation of structure and function:

[0036] 1. Foot-controlled electrocoagulation and electroresection:

[0037] Circuit 1: hook head 1 → hook head base 13 → driving spring 8 → driving inner rod 9 → driving inner rod positioning piece 12 → power cord 5;

[0038] Circuit 2: hook head 1 → hook head base 13 → metal snake bone 7 → outer tube 10 → outer tube sliding bracket 11 → drive inner rod positioning piece 12 → power cord 5.

[0039] After the power cord 5 is connected to the high-frequency electrosurgical unit 17, loop 1 and loop 2 are connected together to form a loop in the human body with the disposable neutral electrode plate 19 connected to the high-frequency electrosurgical unit 17. The operator then steps on the foot-controlled switch controller 21 connected to the high-frequency electrosurgical unit 17. The foot-controlled switch controller 21 mainly has two switches: an electric cutting switch 22 and an electric coagulation switch 23, which respectively realize electric cutting and electric coagulation of the hook head 1.

[0040] 2. One-hand operation and bendable (ergonomic operation makes operation easier and the surgery more consistent):

[0041] Driving end: driving wheel 3 → outer tube sliding bracket 11 → outer tube 10 → metal snake bone 7 → hook base 13 → hook 1;

[0042] Fixed end: handle 4 → driving inner rod 9 → driving spring 8 → hook head base 13 → hook head 1.

[0043] Holding the handle 4 and following the rotation operation instructions on the handle 4, use the index finger and thumb to turn the driving wheel 3 to bend and straighten the pliers rod, which is easy and smooth to operate.

[0044] 3. 5mm instruments (endoscopic procedures are more widely used):

[0045] Insertion part: The outer diameter of the hook head 1 and the functional tube 2 is 5mm, which is more widely used in various surgical procedures.

[0046] 4. The maximum vertical bending angle is 40° (single-hole multi-channel application can be applied to a wider area):

[0047] Steering angle: Each section of the metal snake bone 7 bends 10°, and 4 sections can bend 40°.

[0048] The rotating wheel 3 is rotated to link the outer tube sliding bracket 11 and the outer tube 10. When the inner rod 9 is driven to remain stationary, the metal snake bone 7 and the hook head 1 are bent.

[0049] 5. Can withstand 10N hook pull (cut fascia tissue faster)

[0050] Load-bearing structure: The metal snake bone 7 has better load-bearing capacity than the curved snake bone, and it will not deflect easily when bending.

[0051] 6. The umbrella-type handle can be fully gripped, and the grip angle of the handle 4 can be adjusted flexibly and 360 degrees freely, which makes up for the limitation of the operating angle of the handle 4 in the prior art, and then adjusts the direction of the hook head 1, so that the grip is more sufficient and the operation is more precise.

[0052] 7. There are "straight" and "bend" steering marks at the tip of the handle 4, which prompts that when the driving wheel 3 is rotated to the left, the functional tube 2 is straightened; when the driving wheel 3 is rotated to the right, the functional tube 2 is bent, which is more intuitive.

[0053] 8. In the existing technology, the hook head is a machined part, and the processing requirements for the center hole are extremely high, there is a certain defective rate, and the cost increases; and with the dimensional fluctuations caused by the machining precision engineering capabilities, the metal snake bone will bend, resulting in slight operational deformation and shaking. Therefore, this time the hook head part is simplified and split into the hook head base 13 and the hook head 1. The hook head base 13 is a mold product with stable dimensional accuracy, and both cost and quality have been greatly improved.

[0054] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the spirit of the present invention, are within the scope of protection claimed herein.

Claims

1. A foot-controlled electric hook with a bendable hook rod, characterized in that: The invention comprises a hook head part, a functional tube (2), and a handle (4) which are connected in sequence; the hook head part, a driving spring piece (8), a driving inner rod (9), a driving inner rod positioning piece (12), and a power line (5) are electrically connected in sequence to form a loop; the hook head part, a metal snake bone (7), an outer tube (10), an outer tube sliding bracket (11), a driving inner rod positioning piece (12), and a power line (5) are electrically connected in sequence to form another loop; and the hook head part is split into a hook head base (13) and a hook head (1).

2. The foot-controlled electric hook with a bendable hook rod according to claim 1, characterized in that: The electric hook (20) with a bendable hook rod and the foot-controlled switch controller (21) are electrically connected to the high-frequency electric knife host (17) respectively.

3. The foot-controlled electric hook with a bendable hook rod according to claim 2, characterized in that: The foot-controlled switch controller (21) is provided with an electric cutting switch (22) and an electric coagulation switch (23).

4. The foot-controlled electric hook with a bendable hook rod according to claim 1, characterized in that: The handle (4) is an umbrella handle type.

5. The foot-controlled electric hook with a bendable hook rod according to claim 1, characterized in that: The handle (4) can be held at a 360-degree angle without any blind spots.

6. The foot-controlled electric hook with a bendable hook rod according to claim 1, characterized in that: The tip of the handle (4) is provided with "straight" and "bend" direction markings, which prompt that the driving wheel (3) is rotated to the left and the functional tube (2) is straightened; and prompt that the driving wheel (3) is rotated to the right and the functional tube (2) is bent.

7. The foot-controlled electric hook with a bendable hook rod according to claim 1, characterized in that: The material of the hook head (1) is alloy steel.

8. The foot-controlled electric hook with a bendable hook rod according to claim 1, characterized in that: The hook head (1) and the functional tube (2) have the same outer diameter.

9. The foot-controlled electric hook with a bendable hook rod according to claim 1, characterized in that: The maximum bending angle of each section of the metal snake bone (7) is 10 degrees, and the maximum bending angle of four sections is 40 degrees.

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