Intelligent electric hook for endoscope

Abstract

The invention discloses an intelligent electric hook for an endoscope. The device comprises a handle and a protection rod, one end of the protection rod is installed on the handle, a rod groove is formed in the end face of the other end of the protection rod, a conducting rod is arranged in the rod groove and movably connected with the rod groove, a telescopic controller is fixed to the bottom of the rod groove, one end of the conducting rod is installed on the telescopic controller, and the other end of the conducting rod is connected with the telescopic controller. The other end of the conducting rod is arranged at the opening of the rod groove, a hook head is fixed on the conducting rod, a power supply device is arranged in the handle, and the conducting rod is electrically connected with the power supply device. The electric hook has the beneficial effects that accidental injury to surrounding tissues in the process that the electric hook is withdrawn from a body in a high-temperature state can be well avoided, and the safety is improved; the tissue heating efficiency of the electric hook is improved; the motion precision of the conducting rod is improved; the structure is simple and operation is convenient; and the position fixing effect on the hook head is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to medical devices, and in particular to an intelligent electric hook for laparoscope. Background Art

[0002] Thoracoscopic surgery is widely used in lung, esophageal and mediastinal surgery. It has the advantages of less trauma and faster recovery. Thoracoscopic surgery is performed with special instruments. The electric hook is a working instrument frequently used in surgery. The front end of this type of electric hook is usually a blunt-headed, hook-shaped structure. When the high-frequency high-voltage current generated by the effective electrode tip comes into contact with the body, it instantly heats the contacted tissue, achieves separation and coagulation of body tissue, and thus achieves the purpose of cutting and hemostasis.

[0003] China Patent Authorization Announcement No.: CN 201646596U, Authorization Announcement Date: November 24, 2010, discloses an electric hook for thoracoscopic surgery, including a working part, a holding part, an external connection part and a wire, characterized in that: the radius of the holding part close to the working part is smaller than the radius close to the external connection part; the ratio of the radius of the holding part close to the working part to the radius of the holding part close to the external connection part is 2:3; the holding part close to the external connection part is provided with three concave surfaces; the three concave surfaces are provided with anti-slip grooves; the working part, the holding part, the external connection part and the anti-slip grooves are an integrated structure; the holding part close to the external connection part is covered with an anti-slip sleeve; the radius of the middle part of the anti-slip sleeve is smaller than the radius of the two ends, and the radius of the two ends of the anti-slip sleeve is equal. The disadvantage of this patent is that after the thoracoscopic surgery is completed, the electric hook in a high temperature state is easy to cause accidental injury to the surrounding tissues during the process of withdrawing from the body, and the safety is low.

[0004] In summary, there is a need for a highly safe intelligent electric hook for laparoscope. Summary of the invention

[0005] The present invention aims to overcome the shortcomings of the prior art that the electric hook in a high temperature state is prone to cause accidental injury to surrounding tissues during the process of withdrawing from the body and has low safety, and provides a highly safe intelligent electric hook for laparoscope.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A smart electric hook for a laparoscope comprises a handle and a protection rod, wherein one end of the protection rod is mounted on the handle, and the end surface of the other end of the protection rod is provided with a rod groove, and a conductive rod is provided in the rod groove, and the conductive rod and the rod groove are movably connected, and a telescopic controller is fixed to the bottom of the rod groove, wherein one end of the conductive rod is mounted on the telescopic controller, and the other end of the conductive rod is placed at the opening of the rod groove and a hook head is fixed thereon, and a power supply device is provided inside the handle, and the conductive rod and the power supply device are electrically connected.

[0007] During the operation, the power supply device transmits high-frequency current to the hook head through the conductive rod, generating an electrothermal effect, heating the hook head, and achieving separation and coagulation of tissues. After the operation is completed, the conductive rod is driven by the telescopic controller to retract the hook head at its end into the rod groove of the protective rod, which can effectively prevent the electric hook in a high-temperature state from causing accidental injury to surrounding tissues during the process of withdrawing from the body, thereby improving safety.

[0008] Preferably, a scraper plate matching the hook head is provided on the inner wall of the rod groove, and the scraper plates are placed at the opening of the rod groove and are respectively located on both sides of the conductive rod. When there is too much eschar attached to the hook head, which reduces the working efficiency of the electric hook, the hook head at the end of the conductive rod can be driven to retreat into the rod groove by the telescopic controller. When the hook head passes through the scraper plate, the eschar attached to the hook head can be automatically scraped off by the scraper plate, and then the hook head at the end of the conductive rod can be driven to extend out of the rod groove again by the telescopic controller to continue working, which well ensures the heating efficiency of the electric hook on the tissue.

[0009] Preferably, a suction tube interface is provided on the side wall of the rod groove, which can be connected to a negative pressure suction tube, which can absorb and clean the smoke generated during the electric hook surgery, and can also absorb and clean the eschar scraped off by the scraper.

[0010] Preferably, one side of the scraper plate is mounted on the inner wall of the rod groove and is hinged thereto, a scraping groove is provided on the other side of the scraper plate, a movable sleeve is provided on the conductive rod, the movable sleeve is sleeved on the conductive rod and movably connected thereto, the movable sleeve is located between the scraper plate and the telescopic controller, a transmission rod is provided between the scraper plate and the movable sleeve, one end of the transmission rod is mounted on the scraper plate and is hinged thereto, the other end of the transmission rod is mounted on the movable sleeve and is hinged thereto, a flange and a clamping head are also fixed on the conductive rod, the flange is located between the movable sleeve and the telescopic controller, the flange and the movable sleeve are connected by a spring, the clamping head is located between the hook head and the movable sleeve, a clamping groove matching the clamping head is provided on the movable sleeve, and when the scraping grooves on the two scraper plates are engaged with each other, a scraping mouth matching the hook head is formed. When scraping the scab, the conductive rod is driven to move backward through the telescopic controller so that the hook head at its end is retracted into the scraping groove. In the process of the conductive rod moving backward, since the flange on the conductive rod is connected to the movable sleeve through a spring, the scraping plates on both sides will be driven to flip under the transmission action of the transmission rod, so that the other sides of the two scraping plates are close to each other and a scraping opening is formed. Then the conductive rod is continued to be controlled to move backward (the spring is gradually stretched). When the hook head on the conductive rod passes through the scraping opening, the eschar attached to it can be automatically scraped off at the scraping opening. After the scraping is completed, the conductive rod is first controlled to continue to move backward, so that the clamping head 1 on the conductive rod is clamped into the clamping groove 1 on the movable sleeve, and then the conductive rod is driven to move forward through the telescopic controller, so that the hook head at its end is re-extended out of the rod slot to continue working. Since the movable sleeve is clamped with the conductive rod at this time, the scraping plates on both sides will be immediately driven to rotate and reset first, so that the other sides of the two scraping plates are separated to prevent the eschar scraped from the scraping groove from sticking to the hook head again. As the conductive rod continues to move forward, the clamping head 1 on the conductive rod will automatically disengage from the clamping groove 1 on the movable sleeve, thereby releasing the clamping state between the two.

[0011] Preferably, a guide block is fixed inside the rod slot, and a guide through hole matching the conductive rod is provided on the guide block, and the conductive rod is placed in the guide through hole and slidably connected thereto. The design of the guide through hole can play a role in limiting and guiding the movement of the conductive rod in the rod slot, thereby improving the movement accuracy of the conductive rod.

[0012] Preferably, the handle is provided with a rotation groove matching the protection rod, one end of the protection rod is installed in the rotation groove and is rotatably connected thereto, and an adjustment device connected to the protection rod is also installed on the side wall of the rotation groove. During surgery, the doctor can control the rotation of the protection rod on the handle by manipulating the adjustment device to adjust the position of the hook head, which has a simple structure and is easy to operate.

[0013] Preferably, the power supply device includes a power contact arranged on the inner wall of the rotating groove, a conductive contact 1 in contact with the power contact is arranged on the surface of the protection rod, a conductive contact 2 in contact with the conductive rod is arranged on the inner wall of the guide through hole, and the conductive contact 1 and the conductive contact 2 are connected by a conductive strip. The power contact sequentially transmits high-frequency current to the hook head through the conductive contact 1, the conductive strip, the conductive contact 2 and the conductive rod, generating an electrothermal effect, heating the hook head, and realizing separation and coagulation of tissues, with a simple structure and convenient control.

[0014] Preferably, the adjustment device comprises a transmission gear sleeved on the protection rod, the transmission gear and the protection rod are fixedly connected, a gear ring groove matching the transmission gear is provided on the side wall of the rotation groove, the transmission gear is placed on the inner side of the gear ring groove, a side opening is provided on the side wall of the gear ring groove, an adjustment gear is installed in the side opening, one side of the adjustment gear is meshed with the transmission gear, and the other side of the adjustment gear is placed on the outside of the handle. During the operation, the doctor moves the adjustment gear with his fingers, and the protection rod is driven to rotate under the transmission action of the adjustment gear and the transmission gear to adjust the position of the hook head, which has a simple structure and is easy to operate.

[0015] Preferably, a slide groove is provided on the outer wall of the handle, the slide groove is placed on the side of the adjustment gear, a slider is installed in the slide groove, the slider and the slide groove are slidably connected, a connecting through hole is provided between the end wall of the slide groove and the side wall of the side opening, a pressure rod is provided on the slide groove, the pressure rod is placed in the connecting through hole and slidably connected thereto, one end of the pressure rod is fixed on the slide groove, the other end of the pressure rod is facing the adjustment gear, a second clamp is fixed on the slide groove, the second clamp and the pressure rod are fixed on the same side of the slide groove, and a second clamp matching the second clamp is provided on the end wall of the slide groove. When the position adjustment of the hook head is completed, the doctor can push the slider in the slide groove with his fingers, drive the pressure rod on the slider to move in the direction of the adjustment gear and make the end of the pressure rod press and fix the adjustment gear (at this time, the second clamp will be inserted into the second clamp to ensure that the position of the slider in the slide groove is fixed), thereby achieving the position fixation of the hook head and improving the fixing effect.

[0016] Preferably, the pressure rod is provided with an extrusion block, one side of which is fixed to the end face of the other end of the pressure rod, and the other end of the extrusion block faces the adjusting gear and is fixed with a friction layer. The design of the extrusion block can improve the pressing effect of the end of the pressure rod on the adjusting gear, and the design of the friction layer can improve the friction effect between the extrusion block and the adjusting gear, thereby further improving the fixing effect on the adjusting gear.

[0017] The beneficial effects of the present invention are: it can effectively prevent the electric hook in a high temperature state from causing accidental injury to surrounding tissues during the process of withdrawing from the body, thereby improving safety; improving the heating efficiency of the electric hook on tissues; improving the movement accuracy of the conductive rod; having a simple structure and easy operation; and improving the effect of fixing the position of the hook head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Sectional view at AA in the middle; Figure 3 yes Figure 2 The enlarged view of point A in the middle; Figure 4 yes Figure 2 The enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the state of the hook head when scraping the scab.

[0019] In the figure: 1. handle, 2. protection rod, 3. rod groove, 4. conductive rod, 5. telescopic controller, 6. hook head, 7. scraper plate, 8. suction tube interface, 9. scraper groove, 10. movable sleeve, 11. transmission rod, 12. flange, 13. clamp head 1, 14. spring, 15. clamping groove 1, 16. scraper mouth, 17. guide block, 18. guide through hole, 19. rotating groove, 20. power contact, 21. conductive contact 1, 22. conductive contact 2, 23. conductive strip, 24. transmission gear, 25. gear ring groove, 26. side opening, 27. adjustment gear, 28. slide groove, 29. slide block, 30. connecting through hole, 31. pressure rod, 32. clamp head 2, 33. clamping groove 2, 34. extrusion block, 35. Friction layer. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1-Figure 5 In the described embodiment, an intelligent electric hook for a laparoscope includes a handle 1 and a protective rod 2, one end of the protective rod 2 is installed on the handle 1, and the end surface of the other end of the protective rod 2 is provided with a rod groove 3, and a conductive rod 4 is provided in the rod groove 3. The conductive rod 4 and the rod groove 3 are movably connected, and a telescopic controller 5 (cylinder) is fixed to the bottom of the rod groove 3. One end of the conductive rod 4 is installed on the telescopic controller 5, and the other end of the conductive rod 4 is placed at the opening of the rod groove 3 and a hook head 6 is fixed thereon. A power supply device is provided inside the handle 1, and the conductive rod 4 and the power supply device are electrically connected.

[0022] A scraper plate 7 matching the hook head 6 is provided on the inner wall of the rod groove 3 . The scraper plate 7 is placed at the opening of the rod groove 3 and is located on both sides of the conductive rod 4 .

[0023] A suction tube interface 8 is provided on the side wall of the rod groove 3 .

[0024] One side of the scraping plate 7 is mounted on the inner wall of the rod groove 3 and is hinged thereto, a scraping groove 9 is provided on the other side of the scraping plate 7, a movable sleeve 10 is provided on the conductive rod 4, the movable sleeve 10 is sleeved on the conductive rod 4 and movably connected thereto, the movable sleeve 10 is located between the scraping plate 7 and the telescopic controller 5, a transmission rod 11 is provided between the scraping plate 7 and the movable sleeve 10, one end of the transmission rod 11 is mounted on the scraping plate 7 and is hinged thereto, the other end of the transmission rod 11 is mounted on the movable sleeve 10 and is hinged thereto, a flange 12 and a card head 13 are also fixed on the conductive rod 4, the flange 12 is located between the movable sleeve 10 and the telescopic controller 5, the flange 12 and the movable sleeve 10 are connected by a spring 14, the card head 13 is located between the hook head 6 and the movable sleeve 10, the movable sleeve 10 is provided with a card groove 15 matching the card head 13, and when the scraping grooves 9 on the two scraping plates 7 are engaged with each other, a scraping mouth 16 matching the hook head 6 is formed.

[0025] A guide block 17 is fixed inside the rod groove 3 , and a guide through hole 18 matching the conductive rod 4 is provided on the guide block 17 . The conductive rod 4 is placed in the guide through hole 18 and is slidably connected thereto.

[0026] The handle 1 is provided with a rotation groove 19 matching the protection rod 2 , one end of the protection rod 2 is installed in the rotation groove 19 and rotatably connected thereto, and an adjustment device connected to the protection rod 2 is also installed on the side wall of the rotation groove 19 .

[0027] The power supply device includes a power contact 20 arranged on the inner wall of the rotating groove 19, a conductive contact 1 21 in contact with the power contact 20 is arranged on the surface of the protective rod 2, a conductive contact 2 22 in contact with the conductive rod 4 is arranged on the inner wall of the guide through hole 18, and the conductive contact 1 21 and the conductive contact 2 22 are connected by a conductive strip 23.

[0028] The adjusting device includes a transmission gear 24 sleeved on the protection rod 2, the transmission gear 24 and the protection rod 2 are fixedly connected, a gear ring groove 25 matching the transmission gear 24 is provided on the side wall of the rotating groove 19, the transmission gear 24 is placed on the inner side of the gear ring groove 25, a side opening 26 is provided on the side wall of the gear ring groove 25, an adjusting gear 27 is installed in the side opening 26, one side of the adjusting gear 27 is meshed with the transmission gear 24, and the other side of the adjusting gear 27 is placed outside the handle 1.

[0029] A slide groove 28 is provided on the outer wall of the handle 1, and the slide groove 28 is placed on the side of the adjusting gear 27. A slider 29 is installed in the slide groove 28, and the slider 29 and the slide groove 28 are slidably connected. A connecting through hole 30 is provided between the end wall of the slide groove 28 and the side wall of the side opening 26. A pressure rod 31 is provided on the slider 29, and the pressure rod 31 is placed in the connecting through hole 30 and slidably connected thereto. One end of the pressure rod 31 is fixed on the slider 29, and the other end of the pressure rod 31 is facing the adjusting gear 27. A second clamping head 32 is fixed on the slider 29, and the second clamping head 32 and the pressure rod 31 are fixed on the same side of the slider 29. A second clamping groove 33 matching the second clamping head 32 is provided on the end wall of the slide groove 28.

[0030] The pressure rod 31 is provided with an extrusion block 34 (rubber), one side of which is fixed to the end surface of the other end of the pressure rod 31 , and the other end of the extrusion block 34 faces the adjustment gear 27 and a friction layer 35 (asbestos-based material) is fixed thereon.

[0031] When there is too much eschar attached to the hook head 6 and the working efficiency of the electric hook is reduced, the hook head 6 at the end of the conductive rod 4 can be driven to retreat into the rod groove 3 through the telescopic controller 5. When the hook head 6 passes the scraping plate 7, the eschar attached to the hook head 6 can be automatically scraped off by the scraping plate 7. When scraping, the conductive rod 4 is driven to move backward through the telescopic controller 5 so that the hook head 6 at its end is retracted into the scraping groove 9. During the backward movement of the conductive rod 4, since the flange 12 on the conductive rod 4 is connected to the movable sleeve 10 through the spring 14, the scraping plates 7 on both sides are driven to flip under the transmission action of the transmission rod 11, so that the other sides of the two scraping plates 7 are close to each other and form a scraping opening 16. Then the conductive rod 4 is continued to be controlled to move backward (the spring 14 is gradually stretched). When the hook head 6 on the conductive rod 4 passes the scraping opening 16, the eschar attached to it can be automatically scraped off at the scraping opening 16. After the scraping is completed, first control The conductive rod 4 continues to move backward, so that the clamping head 13 on the conductive rod 4 is clamped into the clamping groove 15 on the movable sleeve 10, and then the conductive rod 4 is driven to move forward through the telescopic controller 5, so that the hook head 6 at the end thereof re-extends out of the rod groove 3 to continue working. Since the movable sleeve 10 is clamped with the conductive rod 4 at this time, the scraping plates 7 on both sides will be immediately driven to rotate and reset first, so that the other sides of the two scraping plates 7 are separated, so as to prevent the eschar scraped off from the scraping groove 9 from sticking to the hook head 6 again. As the conductive rod 4 continues to move forward, the clamping head 13 on the conductive rod 4 will automatically disengage from the clamping groove 15 on the movable sleeve 10, thereby releasing the clamping state between the two.

[0032] During the operation, the doctor uses his fingers to move the adjusting gear 27, and under the transmission action of the adjusting gear 27 and the transmission gear 24, the protection rod 2 is driven to rotate to adjust the position of the hook head 6; when the position adjustment of the hook head 6 is completed, the doctor can push the slider 29 in the slide groove 28 with his fingers, drive the pressure rod 31 on the slider 29 to move in the direction of the adjusting gear 27 and make the extrusion block 34 at the end of the pressure rod 31 press and fix the adjusting gear 27 (at this time, the clamping head 32 will be clamped into the clamping groove 33 to ensure that the position of the slider 29 in the slide groove 28 is fixed), thereby achieving the fixation of the position of the hook head 6.

Claims

1. An intelligent electric hook for laparoscope, characterized in that: The invention comprises a handle (1) and a protective rod (2), wherein one end of the protective rod (2) is mounted on the handle (1), and the end surface of the other end of the protective rod (2) is provided with a rod groove (3), a conductive rod (4) is provided in the rod groove (3), the conductive rod (4) and the rod groove (3) are movably connected, a telescopic controller (5) is fixed at the bottom of the rod groove (3), one end of the conductive rod (4) is mounted on the telescopic controller (5), the other end of the conductive rod (4) is placed at the opening of the rod groove (3) and a hook (6) is fixed thereon, a power supply device is provided inside the handle (1), and the conductive rod (4) and the power supply device are electrically connected.

2. The intelligent electric hook for laparoscope according to claim 1 is characterized in that: A scraper plate (7) matching the hook head (6) is provided on the inner wall of the rod groove (3); the scraper plate (7) is placed at the opening of the rod groove (3) and is located on both sides of the conductive rod (4).

3. The intelligent electric hook for laparoscope according to claim 2 is characterized in that: A suction tube interface (8) is provided on the side wall of the rod groove (3).

4. The intelligent electric hook for laparoscope according to claim 2 or 3, characterized in that: One side of the scraping plate (7) is mounted on the inner wall of the rod groove (3) and is hinged thereto; the other side of the scraping plate (7) is provided with a scraping groove (9); the conductive rod (4) is provided with a movable sleeve (10); the movable sleeve (10) is sleeved on the conductive rod (4) and is movably connected thereto; the movable sleeve (10) is located between the scraping plate (7) and the telescopic controller (5); a transmission rod (11) is provided between the scraping plate (7) and the movable sleeve (10); one end of the transmission rod (11) is mounted on the scraping plate (7) and is hinged thereto; the other end of the transmission rod (11) is mounted on the conductive rod (4) The movable sleeve (10) is hingedly connected to the movable sleeve (10), and a flange (12) and a clamping head (13) are fixed to the conductive rod (4). The flange (12) is located between the movable sleeve (10) and the telescopic controller (5). The flange (12) and the movable sleeve (10) are connected via a spring (14). The clamping head (13) is located between the hook head (6) and the movable sleeve (10). The movable sleeve (10) is provided with a clamping groove (15) matching the clamping head (13). When the scraping grooves (9) on the two scraping plates (7) are engaged with each other, a scraping opening (16) matching the hook head (6) is formed.

5. The intelligent electric hook for laparoscope according to claim 4 is characterized in that: A guide block (17) is fixed inside the rod groove (3), and a guide through hole (18) matching the conductive rod (4) is provided on the guide block (17), and the conductive rod (4) is placed in the guide through hole (18) and is slidably connected thereto.

6. The intelligent electric hook for laparoscope according to claim 5 is characterized in that: The handle (1) is provided with a rotation groove (19) matching the protection rod (2); one end of the protection rod (2) is mounted in the rotation groove (19) and is rotatably connected thereto; an adjustment device connected to the protection rod (2) is also mounted on the side wall of the rotation groove (19).

7. The intelligent electric hook for laparoscope according to claim 6 is characterized in that: The power supply device comprises a power contact (20) arranged on the inner wall of the rotating groove (19); a conductive contact (21) in contact with the power contact (20) is arranged on the surface of the protection rod (2); a conductive contact (22) in contact with the conductive rod (4) is arranged on the inner wall of the guide through hole (18); and the conductive contact (21) and the conductive contact (22) are connected via a conductive strip (23).

8. The intelligent electric hook for laparoscope according to claim 6 is characterized in that: The adjusting device comprises a transmission gear (24) sleeved on the protection rod (2), the transmission gear (24) and the protection rod (2) being fixedly connected, a gear ring groove (25) matching the transmission gear (24) being provided on the side wall of the rotation groove (19), the transmission gear (24) being arranged on the inner side of the gear ring groove (25), a side opening (26) being provided on the side wall of the gear ring groove (25), an adjusting gear (27) being installed in the side opening (26), one side of the adjusting gear (27) being meshed with the transmission gear (24), and the other side of the adjusting gear (27) being arranged outside the handle (1).

9. The intelligent electric hook for laparoscope according to claim 8 is characterized in that: A slide groove (28) is provided on the outer wall of the handle (1), and the slide groove (28) is placed on the side of the adjusting gear (27). A slider (29) is installed in the slide groove (28), and the slider (29) and the slide groove (28) are slidably connected. A connecting through hole (30) is provided between the end wall of the slide groove (28) and the side wall of the side opening (26). A pressure rod (31) is provided on the slider (29), and the pressure rod (31) is placed in the connecting through hole (30) and is slidably connected thereto. One end of the pressure rod (31) is fixed on the slider (29), and the other end of the pressure rod (31) faces the adjusting gear (27). A second clamping head (32) is fixed on the slider (29), and the second clamping head (32) and the pressure rod (31) are fixed on the same side of the slider (29). A second clamping groove (33) matching the second clamping head (32) is provided on the end wall of the slide groove (28).

10. The intelligent electric hook for laparoscope according to claim 9, characterized in that: The pressure rod (31) is provided with an extrusion block (34), one side of the extrusion block (34) is fixed to the end surface of the other end of the pressure rod (31), and the other end of the extrusion block (34) faces the adjustment gear (27) and has a friction layer (35) fixed thereon.

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