Bendable and rotary electric hook

Abstract

The utility model relates to a bendable and rotary electric hook, and belongs to the field of medical instruments. The utility model discloses an insulating tube, outer tube, push-and-pull tube, inner core, insulating head, insulating seat and outer tube seat, the insulating tube is sleeved outside the outer tube, the outer tube is sleeved outside the push-and-pull tube, the push-and-pull tube is sleeved outside the inner core, one end of the insulating tube is connected with the insulating seat, the other end of the insulating tube is connected with the insulating head, and the outer tube is sleeved outside the outer tube. One end of the outer pipe is connected with the outer pipe seat, the outer pipe seat is arranged in the insulating seat, and the electric hook is structurally characterized by further comprising a spacer bush, a snake bone, an electric hook head, a connecting steel rope, an electric hook handle, a bending mechanism and a rotating mechanism, the other end of the outer pipe is connected with one end of the snake bone, the other end of the snake bone is connected with one end of the spacer bush, and the other end of the snake bone is connected with the other end of the rotating mechanism. The other end of the spacer bush is connected with the insulating head, one end of the push-pull tube is connected with the bending mechanism, the other end of the push-pull tube is connected with the push-pull steel sheet of the snake bone, and one end of the inner core is connected with the rotating mechanism.

Description

Technical Field

[0001] The utility model relates to a bendable and rotatable electric hook, belonging to the field of medical devices. Background Art

[0002] At present, more and more open surgeries have been replaced by minimally invasive surgeries. Minimally invasive surgeries 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 future surgical methods.

[0003] In minimally invasive surgeries, since the electric hook has functions of tissue separation, cutting, and hemostasis, the electric hook is one of the commonly used instruments in minimally invasive surgeries. Conventional electric hooks generally have a conductive hook added to a straight rod. When in a hidden (blocked by other organs) position during surgery, due to the lack of bending and rotating functions of the electric hook in the prior art, it is often very difficult to perform intraoperative treatment or increase the surgical difficulty and surgical time. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies existing in the prior art, and to provide a bendable and rotatable electric hook with a reasonable structural design.

[0005] The technical solution adopted by the utility model to solve the above problems is: the bendable and rotatable electric hook includes an insulating tube, an outer tube, a push-pull tube, an inner core, an insulating head, an insulating seat, and an outer tube seat. The insulating tube is sleeved outside the outer tube, the outer tube is sleeved outside the push-pull tube, the push-pull tube is sleeved outside the inner core. One end of the insulating tube is connected to the insulating seat, the other end of the insulating tube is connected to the insulating head, one end of the outer tube is connected to the outer tube seat, and the outer tube seat is arranged inside the insulating seat. Its structural feature is that it further includes a spacer sleeve, a snake bone, an electric hook head, a connecting steel cable, an electric hook handle, a bending mechanism, and a rotating mechanism. The other end of the outer tube is connected to one end of the snake bone, the other end of the snake bone is connected to one end of the spacer sleeve, the other end of the spacer sleeve is connected to the insulating head, one end of the push-pull tube is connected to the bending mechanism, the other end of the push-pull tube is connected to the push-pull steel sheet of the snake bone, one end of the inner core is connected to the rotating mechanism, the other end of the inner core is connected to one end of the connecting steel cable, the other end of the connecting steel cable is connected to the electric hook head, and both the bending mechanism and the rotating mechanism are installed on the electric hook handle.

[0006] Further, one end of the inner core is connected to a conductive sheet, the conductive sheet is connected to a high-frequency wire, and the high-frequency wire is connected to a high-frequency generator.

[0007] Further, the connecting steel cable penetrates through the snake bone.

[0008] Further, the snake bone includes a snake bone head, a snake bone tail, a middle part of the snake bone, and a snake bone steel cable. The snake bone head and the snake bone tail are respectively rotatably connected to the middle part of the snake bone. The snake bone steel cable is threaded through the snake bone head, the snake bone tail, and the middle part of the snake bone, and both ends of the snake bone steel cable are fixed to the snake bone head and the snake bone tail respectively.

[0009] Further, the middle part of the snake bone is composed of a plurality of snake bone joints, and adjacent snake bone joints are rotatably connected.

[0010] Further, the other end of the outer tube is connected to the snake bone head, and the snake bone tail is connected to one end of the spacer sleeve.

[0011] Further, the other end of the push-pull tube is connected to one end of the push-pull steel sheet, and the other end of the push-pull steel sheet is fixed to the snake bone tail.

[0012] Further, the bending mechanism includes a guide slide shaft, a lead screw, a lead screw sleeve, and a bending handwheel. One end of the guide slide shaft is fixed inside the outer tube seat, and the other end of the guide slide shaft is sleeved outside the inner core rotating sleeve. The lead screw is slidably arranged on the guide slide shaft. The lead screw sleeve is threadedly connected to the lead screw, and the lead screw sleeve is fixed to the bending handwheel. One end of the push-pull tube is fixed to the lead screw.

[0013] Further, the rotating mechanism includes a retaining seat, an inner core rotating sleeve, and a rotating handwheel. The retaining seat is installed on the electric hook handle. The inner core rotating sleeve is rotatably installed on the retaining seat, and the inner core rotating sleeve is sleeved outside the inner core. The inner core is fixed to the inner core rotating sleeve, and the inner core rotating sleeve is fixed to the rotating handwheel.

[0014] Further, the bending handwheel is located between the insulating seat and the electric hook handle.

[0015] Compared with the prior art, the present utility model has the following advantages: The bendable and rotatable electric hook can control the bending of the electric hook head part through the bending mechanism, so that the electric hook head can be bent within the range of 0° - 70°, and at the same time, the electric hook head can be controlled to rotate 360° through the rotating mechanism, so as to make the electric hook reach the best use angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic front sectional view of the bendable and rotatable electric hook according to an embodiment of the present utility model.

[0017] Figure 2 is a schematic front sectional view of the bendable and rotatable electric hook according to an embodiment of the present utility model.

[0018] Figure 3 is a schematic three-dimensional sectional view of the bendable and rotatable electric hook according to an embodiment of the present utility model.

[0019] Figure 4It is a schematic diagram of the three-dimensional fracture structure of the bendable and rotatable electric hook according to an embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the snake bone according to an embodiment of the present invention.

[0021] In the figure: insulating tube 1, outer tube 2, push-pull tube 3, inner core 4, insulating head 5, spacer 6, snake bone 7, electric hook head 8, connecting steel rope 9, push-pull steel sheet 10, snake bone head 11, snake bone tail 12, snake bone middle part 13, snake bone steel rope 14, insulating seat 15, outer tube seat 16, guide slide shaft 17, lead screw 18, lead screw sleeve 19, bending handwheel 20, electric hook handle 21, retaining seat 22, inner core rotating sleeve 23, rotating handwheel 24, conductive sheet 25, high-frequency wire 26. Specific embodiments

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, and the present invention is not limited to the following embodiments.

[0023] Embodiment

[0024] See Figures 1 to 5 As shown, it should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, if terms such as "upper", "lower", "left", "right", "middle", and "one" are used in this specification, they are only for the convenience of clear narration and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0025] The bendable and rotatable electric hook in this embodiment includes an insulating tube 1, an outer tube 2, a push-pull tube 3, an inner core 4, an insulating head 5, a spacer 6, a snake bone 7, an electric hook head 8, a connecting steel rope 9, an insulating seat 15, an outer tube seat 16, an electric hook handle 21, a bending mechanism, and a rotating mechanism. The insulating tube 1 is sleeved outside the outer tube 2, the outer tube 2 is sleeved outside the push-pull tube 3, and the push-pull tube 3 is sleeved outside the inner core 4.

[0026] One end of the insulating tube 1 in this embodiment is connected to the insulating seat 15, and the other end of the insulating tube 1 is connected to the insulating head 5. One end of the outer tube 2 is connected to the outer tube seat 16, and the outer tube seat 16 is arranged inside the insulating seat 15. The other end of the outer tube 2 is connected to one end of the snake bone 7. The other end of the snake bone 7 is connected to one end of the spacer sleeve 6. The other end of the spacer sleeve 6 is connected to the insulating head 5. One end of the push-pull tube 3 is connected to the bending mechanism, and the other end of the push-pull tube 3 is connected to the push-pull steel sheet 10 of the snake bone 7.

[0027] One end of the inner core 4 in this embodiment is connected to the rotating mechanism, that is, the rotating mechanism is installed on the inner core 4 and is arranged near one end of the inner core 4. One end of the inner core 4 is connected to the conductive sheet 25. The conductive sheet 25 is connected to the high-frequency wire 26, and the high-frequency wire 26 is connected to the high-frequency generator.

[0028] The other end of the inner core 4 in this embodiment is connected to one end of the connecting steel rope 9. The other end of the connecting steel rope 9 is connected to the electric hook head 8. The connecting steel rope 9 penetrates through the snake bone 7. Both the bending mechanism and the rotating mechanism are installed on the electric hook handle 21.

[0029] The snake bone 7 in this embodiment includes a snake bone head 11, a snake bone tail 12, a snake bone middle part 13 and a snake bone steel rope 14. The snake bone head 11 and the snake bone tail 12 are respectively rotatably connected to the snake bone middle part 13. The snake bone steel rope 14 is threaded through the snake bone head 11, the snake bone tail 12 and the snake bone middle part 13, and both ends of the snake bone steel rope 14 are fixed to the snake bone head 11 and the snake bone tail 12 respectively. The snake bone middle part 13 is composed of a plurality of snake bone joints, and adjacent snake bone joints are rotatably connected. The other end of the outer tube 2 is connected to the snake bone head 11. The snake bone tail 12 is connected to one end of the spacer sleeve 6. The other end of the push-pull tube 3 is connected to one end of the push-pull steel sheet 10, and the other end of the push-pull steel sheet 10 is fixed to the snake bone tail 12.

[0030] The bending mechanism in this embodiment includes a guide slide shaft 17, a lead screw 18, a lead screw sleeve 19 and a bending hand wheel 20. One end of the guide slide shaft 17 is fixed inside the outer tube seat 16, and the other end of the guide slide shaft 17 is sleeved outside the inner core rotating sleeve 23. The lead screw 18 is slidably arranged on the guide slide shaft 17. The lead screw sleeve 19 is threadedly connected to the lead screw 18 and is fixed to the bending hand wheel 20. One end of the push-pull tube 3 is fixed to the lead screw 18, and the bending hand wheel 20 is located between the insulating seat 15 and the electric hook handle 21.

[0031] The rotating mechanism in this embodiment includes a retaining seat 22, an inner core rotating sleeve 23 and a rotating hand wheel 24. The retaining seat 22 is installed on the electric hook handle 21. The inner core rotating sleeve 23 is rotatably installed on the retaining seat 22 and is sleeved outside the inner core 4. The inner core 4 is fixed to the inner core rotating sleeve 23, and the inner core rotating sleeve 23 is fixed to the rotating hand wheel 24.

[0032] Specifically, when in use, the bendable and rotatable electric hook can make the wire sleeve 19 rotate by rotating the bending handwheel 20. Since the wire sleeve 19 is threadedly connected to the lead screw 18, the lead screw 18 can be driven by the wire sleeve 19 to move along the length direction of the guide shaft 17. Since the push-pull tube 3 is fixed to the lead screw 18, the push-pull steel sheet 10 can be controlled to move forward or backward through the push-pull tube 3, so as to realize the bending control of the snake bone 7. Therefore, the electric hook head 8 can be bent within the range of 0°-70°. The outer tube 2 is made of a flexible tube, so when controlling the bending of the electric hook head 8, it will not be restricted by the outer tube 2, and the snake bone 7 can be bent flexibly.

[0033] At the same time, the inner core rotating sleeve 23 can be driven to rotate on the retaining seat 22 by rotating the rotating handwheel 24. Since the inner core rotating sleeve 23 is fixed to the inner core 4, the inner core 4 is connected to the connecting steel rope 9, and the connecting steel rope 9 is connected to the electric hook head 8, and thus the electric hook head 8 can be rotated 360°. The connecting steel rope 9 is connected by a flexible steel rope, so when the electric hook head 8 is fully rotated, it will not be restricted by the connecting steel rope 9, and thus the electric hook can reach the best use angle.

[0034] Regarding the connection and principle of the snake bone 7, first, the snake bone head 11, the snake bone tail 12, and the snake bone middle part 13 are connected together by two flexible snake bone steel ropes 14. The snake bone middle part 13 is composed of multiple snake bone joints, and adjacent snake bone joints are rotatably connected. The snake bone joints are designed as convex semi-circles and concave semi-circles, and the concave and convex semi-circles match each other, so that it always moves at the midpoint of the semi-circle. When the push-pull steel sheet 10 is controlled to move forward and backward through the push-pull tube 3, the snake bone 7 can be bent or straightened.

[0035] The electric hook head 8, the connecting steel rope 9, the inner core 4, the conductive sheet 25, and the high-frequency wire 26 are electrically connected, and the high-frequency wire 26 is connected to the high-frequency generator; the electric hook handle 21, the bending handwheel 20, the rotating handwheel 24, the insulating seat 15, the insulating tube 1, and the insulating head 5 are all processed from insulating materials.

[0036] In addition, it should be noted that for the specific embodiments described in this specification, the shapes and names of their components can be different. The above content described in this specification is only an example of the structure of the present invention. Any equivalent changes or simple changes made according to the structure, features, and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. Those skilled in the art of the present invention can make various modifications, supplements, or use similar methods to replace the specific embodiments described, as long as they do not deviate from the structure of the present invention or exceed the scope defined by this claim, they should fall within the protection scope of the present invention.

Claims

1. A bendable and rotatable electric hook, comprising an insulating tube (1), an outer tube (2), a push-pull tube (3), an inner core (4), an insulating head (5), an insulating seat (15) and an outer tube seat (16), wherein the insulating tube (1) is sleeved outside the outer tube (2), the outer tube (2) is sleeved outside the push-pull tube (3), the push-pull tube (3) is sleeved outside the inner core (4), one end of the insulating tube (1) is connected to the insulating seat (15), the other end of the insulating tube (1) is connected to the insulating head (5), one end of the outer tube (2) is connected to the outer tube seat (16), and the outer tube seat (16) is arranged in the insulating seat (15), characterized in that: It also includes a spacer (6), a snake bone (7), an electric hook head (8), a connecting steel rope (9), an electric hook handle (21), a bending mechanism and a rotating mechanism. The other end of the outer tube (2) is connected to one end of the snake bone (7), the other end of the snake bone (7) is connected to one end of the spacer (6), the other end of the spacer (6) is connected to the insulating head (5), one end of the push-pull tube (3) is connected to the bending mechanism, the other end of the push-pull tube (3) is connected to the push-pull steel sheet (10) of the snake bone (7), one end of the inner core (4) is connected to the rotating mechanism, the other end of the inner core (4) is connected to one end of the connecting steel rope (9), the other end of the connecting steel rope (9) is connected to the electric hook head (8), and the bending mechanism and the rotating mechanism are both installed on the electric hook handle (21).

2. The bendable and rotatable electric hook according to claim 1, characterized in that: One end of the inner core (4) is connected to a conductive sheet (25), the conductive sheet (25) is connected to a high-frequency line (26), and the high-frequency line (26) is connected to a high-frequency generator.

3. The bendable and rotatable electric hook according to claim 1, characterized in that: The connecting steel rope (9) penetrates the snake bone (7).

4. The bendable and rotatable electric hook according to claim 1, characterized in that: The snake bone (7) comprises a head portion (11), a tail portion (12), a middle portion (13) and a steel cable (14). The head portion (11) and the tail portion (12) are rotatably connected to the middle portion (13) respectively. The steel cable (14) is connected to the head portion (11), the tail portion (12) and the middle portion (13) of the snake bone. Two ends of the steel cable (14) are fixed to the head portion (11) and the tail portion (12) of the snake bone respectively.

5. The bendable and rotatable electric hook according to claim 4, characterized in that: The middle part of the snake bone (13) is composed of a plurality of snake bone joints, and adjacent snake bone joints are rotationally connected.

6. The bendable and rotatable electric hook according to claim 4, characterized in that: The other end of the outer tube (2) is connected to the head of the snake bone (11), and the tail of the snake bone (12) is connected to one end of the spacer (6).

7. The bendable and rotatable electric hook according to claim 4, characterized in that: The other end of the push-pull tube (3) is connected to one end of the push-pull steel sheet (10), and the other end of the push-pull steel sheet (10) is fixed to the snake bone tail (12).

8. The bendable and rotatable electric hook according to claim 1, characterized in that: The bending mechanism comprises a guide slide shaft (17), a screw rod (18), a threaded sleeve (19) and a bending hand wheel (20); one end of the guide slide shaft (17) is fixed in an outer tube seat (16); the screw rod (18) is slidably arranged on the guide slide shaft (17); the threaded sleeve (19) is threadedly connected to the screw rod (18); the threaded sleeve (19) is fixed to the bending hand wheel (20); and one end of the push-pull tube (3) is fixed to the screw rod (18).

9. The bendable and rotatable electric hook according to claim 1, characterized in that: The rotating mechanism comprises a stopper (22), an inner core rotating sleeve (23) and a rotating hand wheel (24); the stopper (22) is mounted on the electric hook handle (21); the inner core rotating sleeve (23) is rotatably mounted on the stopper (22); the inner core rotating sleeve (23) is sleeved outside the inner core (4); the inner core (4) is fixed to the inner core rotating sleeve (23); and the inner core rotating sleeve (23) is fixed to the rotating hand wheel (24).

10. The bendable and rotatable electric hook according to claim 8, characterized in that: The curved hand wheel (20) is located between the insulating seat (15) and the electric hook handle (21).

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