Medical instrument for minimally invasive surgery
阅读说明：本技术 一种用于微创手术的医疗器械 (Medical instrument for minimally invasive surgery ) 是由 王雪 于 2020-06-24 设计创作，主要内容包括：本发明公开了一种用于微创手术的医疗器械,包括握持装置,所述握持装置的内部设有延伸装置；通过夹持装置和驱动装置的配合对延伸装置进行夹持固定,使医生能够快速对延伸装置延伸出来的长度进行调节,通过分离装置和卡接装置的配合,使医生能够快速将分离装置与延伸装置固定在一起,通过绷紧装置、夹持装置、驱动装置的配合,使医生能够解除对传动装置的限制,保证传动装置与卡接装置之间的传动距离能够根据延伸装置延伸出来的长度进行相应的改变,从而实现对该医疗器械长度调节的目的,医生能够根据具体的手术情况、自身的使用习惯及其身高情况对该用于微创手术的医疗器械长度的进行调节,适用性更好,提高了该医疗器械的实用性。(The invention discloses a medical instrument for minimally invasive surgery, which comprises a holding device, wherein an extending device is arranged in the holding device; carry out the centre gripping through clamping device and drive arrangement's cooperation to extension device fixed, make the doctor adjust the length that extension device extends fast, cooperation through separator and latch device, make the doctor can be together fixed separator and extension device fast, through tightening device, clamping device, drive arrangement's cooperation, make the doctor can remove the restriction to transmission, guarantee that the transmission distance between transmission and the latch device can carry out corresponding change according to the length that extension device extends, thereby realize the purpose to this medical instrument length adjustment, the doctor can be according to specific operation condition, self use custom and its height condition are to this being used for the medical instrument length's of minimal access surgery to adjust, the suitability is better, this medical instrument's practicality has been improved.)
1. A medical instrument for minimally invasive surgery, comprising a holding device (1), characterized in that: an extension device (2) is arranged inside the holding device (1).
2. A medical device for minimally invasive surgery according to claim 1, characterized in that: the gripping device (1) comprises a fixed handle (11), a turning shaft (12) is movably inserted in the fixed handle (11), the turning shaft (12) is fixedly sleeved with an occlusion handle (13), the top end of the occlusion handle (13) is fixedly connected with an occlusion plate (14), the top end of the fixed handle (11) is fixedly connected with a fixed cylinder (15), the occlusion plate (14) is in contact connection with the right end face of the fixed cylinder (15), the right side face of the inner cavity of the fixed cylinder (15) is fixedly connected with a turning wheel (16), a tightening device (4), a clamping device (5) and a driving device (6) are arranged in the fixed cylinder (15), an isolating plate (17) positioned on the left side of the clamping device (5) and the driving device (6) is fixedly connected on the inner wall of the fixed cylinder (15), and a transmission device (7) is in transmission connection with the left side face of the isolating plate (17) through a compression spring (18), the left side face of the occluding plate (14) is fixedly connected with a pulling line (19), the other end of the pulling line (19) extends to the inside of the fixed cylinder (15) and bypasses the occluding plate (14) and passes through the isolation plate (17) to be fixedly connected with the transmission device (7), and the left end of the fixed cylinder (15) is fixedly communicated with the conical pipe (10).
3. A medical device for minimally invasive surgery according to claim 1, characterized in that: the extension device (2) comprises an extension pipe (21), the extension pipe (21) is movably inserted into the conical pipe (10), the fixed cylinder (15), the transmission device (7), the compression spring (18), the isolation plate (17) and the clamping device (5), the right end of the extension pipe (21) extends out of the right end of the fixed cylinder (15), the top surface of the bite plate (14) is provided with a groove, the groove is movably clamped outside the extension pipe (21), the left end of the extension pipe (21) is provided with the separation device (3), the upper surface and the lower surface of the extension pipe (21) are both provided with track grooves (22), the inner wall of the extension pipe (21) is fixedly connected with a positioning plate (23), the upper surface and the lower surface of the positioning plate (23) are both provided with inserting grooves (24) communicated with the track grooves (22), the positioning plate (23) is movably inserted with guide sheets (25), the left end of each guide sheet (25) is fixedly connected with a clamping device (8), extrusion spring (26) have been cup jointed in the outside activity of guide vane (25), and the right-hand member and locating plate (23) fixed connection of extrusion spring (26), the left end and latch device (8) fixed connection of extrusion spring (26), seted up spacing groove (27) and through-hole (28) on the left end face of extension tube (21).
4. A medical device for minimally invasive surgery according to claim 3, characterized in that: the separation device (3) comprises a butt joint barrel (31), the right end face of the butt joint barrel (31) is in contact connection with the left end face of the extension pipe (21), an inserting protrusion (32) is arranged on the right end face of the butt joint barrel (31), the inserting protrusion (32) is movably inserted in a limiting groove (27), a pulling rod (33) is inserted in the inner movable portion of the butt joint barrel (31), the right end of the pulling rod (33) penetrates through a through hole (28) and extends to the inner portion of the extension pipe (21), an inserting groove (34) is formed in the right end of the pulling rod (33), and a separation head (35) is fixedly mounted at the left end of the butt joint barrel (31).
5. A medical device for minimally invasive surgery according to claim 2, characterized in that: tightening device (4) are including locating piece (41), the inner wall fixed connection of locating piece (41) and fixed section of thick bamboo (15), installation cavity (42) have been seted up to the inside of locating piece (41), well core rod (43) have been cup jointed in the activity on the inner wall of installation cavity (42), distortion spring (44) have been cup jointed in the outside activity of well core rod (43), the fixed cover in the outside of well core rod (43) has connect take-up pulley (45), the inner wall fixed connection of the one end of distortion spring (44) and installation cavity (42), the other end and take-up pulley (45) fixed connection of distortion spring (44), the outside winding of take-up pulley (45) has transmission rope (46), the tip fixed connection of transmission rope (46) is on the surface of take-up pulley (45).
6. A medical device for minimally invasive surgery according to claim 2, characterized in that: clamping device (5) are including location slide bar (51), the top of location slide bar (51) and the top surface fixed connection of fixed cylinder (15) inner chamber, the bottom of location slide bar (51) and the bottom surface fixed connection of fixed cylinder (15) inner chamber, the outside activity of location slide bar (51) has cup jointed pressure spring (52) and has executed clamp plate (53), the one end of pressure spring (52) and the inner wall fixed connection of fixed cylinder (15), the other end and the pressure plate (53) fixed connection of pressure spring (52), fixedly connected with wear-resisting piece (54) on the another side of pressure plate (53), arc wall (55) have been seted up on the another side of wear-resisting piece (54), arc wall (55) lock is in the outside of extension pipe (21), the inner wall and the surface contact of extension pipe (21) of arc wall (55) are connected.
7. A medical device for minimally invasive surgery according to claim 2, characterized in that: drive arrangement (6) are including actuating lever (61) and adaptation groove (64), the one end of actuating lever (61) is cup jointed with the inner wall activity of solid fixed cylinder (15), the other end fixedly connected with trip lever (62) of actuating lever (61), the tip of trip lever (62) is connected with the surface contact who applies pressure plate (53), the outside fixed of actuating lever (61) has cup jointed driving strip (63), adaptation groove (64) are seted up on the bottom surface of solid fixed cylinder (15), adaptation groove (64) and fixedly connected with curved plate (65) are passed to the bottom of driving strip (63), torque spring (66) have been cup jointed in the outside activity of actuating lever (61), the one end of torque spring (66) and the inner wall fixed connection of solid fixed cylinder (15), the other end and driving strip (63) fixed connection of torque spring (66).
8. A medical device for minimally invasive surgery according to claim 2, characterized in that: the transmission device (7) comprises a transmission block (701), the transmission block (701) is in sliding connection with the inner wall of the fixed barrel (15), one end of a pulling line (19) is fixedly connected with the right side face of the transmission block (701), a central hole (702) is formed in the middle of the side face of the transmission block (701), an extension pipe (21) is movably inserted in the central hole (702), an accommodating groove (703) is formed in the transmission block (701), a rotating shaft (704) is movably sleeved on the inner wall of the accommodating groove (703), a restoring spring (705) is movably sleeved on the outer portion of the rotating shaft (704), one end of the restoring spring (705) is fixedly connected with the surface of the rotating shaft (704), the other end of the restoring spring (705) is fixedly connected with the inner wall of the accommodating groove (703), a limiting gear (706) and a winding wheel (707) are fixedly sleeved on the outer portion of the rotating shaft (704), and a winding line (708), fixedly connected with wire wheel (709) on the inner wall of centre bore (702), wire wheel (709) slip grafting is in the inside of track groove (22), it takes turns (709) looks adaptation to alternate groove (24), the other end of driving line (708) passes track groove (22) and bypasses wire wheel (709) and passes behind slot (24) and with latch device (8) fixed connection, buffer chamber (710) have been seted up to the inside of driving block (701), the inner wall of buffer chamber (710) is connected with buffer board (712) through buffer spring (711) transmission, buffer board (712) and the inner wall sliding connection of buffer chamber (710), the another side fixed connection of buffer board (712) has spacing head (713), the other end of spacing head (713) extends to the inside of holding tank (703) and meshes with spacing gear (706), the one end of driving rope (46) passes division board (17) and extends to the inside of buffer chamber (710) and with buffer board (712) fixed connection.
9. A medical device for minimally invasive surgery according to claim 3, characterized in that: the clamping device (8) comprises an adapter plate (801), the adapter plate (801) is connected with the inner wall of the extension pipe (21) in a sliding mode, the right side face of the adapter plate (801) is fixedly connected with one end of a transmission line (708), the upper face and the lower face of the adapter plate (801) are both provided with buckling grooves (802), the buckling grooves (802) are communicated with rail grooves (22), the buckling grooves (802) are matched with wire guide wheels (709), the inner wall of the buckling grooves (802) is provided with fixing grooves (803), the interior of the adapter plate (801) is provided with positioning cavities (804), the positioning cavities (804) are fixedly communicated with the fixing grooves (803), the left side face of the adapter plate (801) is provided with bearing holes (805), the right end of a traction rod (33) is movably inserted into the bearing holes (805), the insertion grooves (34) are located inside the bearing holes (805), the inner wall of the positioning cavities (804) is provided with fixing holes (806), the fixing hole (806) corresponds to the inserting groove (34), a fixing vertical rod (807) is fixedly connected between the upper surface and the lower surface of the inner cavity of the positioning cavity (804), a force accumulation spring (808) and a force accumulation plate (809) are movably sleeved outside the fixing vertical rod (807), one end of the force accumulation spring (808) is fixedly connected with the inner wall of the positioning cavity (804), the other end of the force accumulation spring (808) is fixedly connected with the force accumulation plate (809), a clamping joint (810) is fixedly connected to the bottom surface of the force accumulation plate (809), the bottom end of the clamping joint (810) penetrates through the fixing hole (806) and is movably inserted into the inserting groove (34), a fixing vertical plate (811) is fixedly connected to the bottom surface of the inner cavity of the positioning cavity (804), a fixing pin (812) is movably inserted into the fixing vertical plate (811), a lifting plate (813) is movably sleeved outside the fixing pin (812) and is lifted, and the lifting plate (813) is connected with the bottom surface of the inner cavity of the, the lifting plate (813) is provided with a clamping groove (814), the clamping groove (814) is movably clamped on the clamping joint (810), the left end of the lifting plate (813) is fixedly connected with a stress strip (815), the other end of the stress strip (815) penetrates through a fixing groove (803) and extends to the inside of the clamping groove (802), the stress strip (815) corresponds to a wire guide wheel (709), the stress strip (815) is movably inserted with an arc-shaped sliding rod (816), one end of the arc-shaped sliding rod (816) is fixedly connected with the bottom surface of an inner cavity of the positioning cavity (804), the other end of the arc-shaped sliding rod (816) is fixedly connected with a reinforcing block (817), the top end of the reinforcing block (817) is fixedly connected with the top surface of the inner cavity of the positioning cavity (804), a reset spring (818) is movably sleeved outside the arc-shaped sliding rod (816), one end of the reset spring (818) is fixedly connected with the bottom surface of the inner cavity of the positioning cavity (804), and the other end of the reset spring (.
Technical Field
The invention relates to the field of medical instruments, in particular to a medical instrument for minimally invasive surgery.
Background
The minimally invasive surgery is an operation of tiny wounds as the name implies, which is an operation performed by using modern medical instruments such as laparoscopes, thoracoscopes and related equipment, has the advantages of small wounds, light pain, quick recovery, short hospitalization time, less bleeding and the like, is very popular with patients needing the operation, and the medical instruments needed to be used in the minimally invasive surgery process mainly comprise a veress needle, a trocar, separating forceps, an electric hook electric shovel, a lithotomy forceps, a bent scissors, grasping forceps, scissors, a clip applier, a clip and the like, wherein the separating forceps mainly comprise a separating head, an outer sleeve, an inner pull rod, an operating handle and the like, the separating head is fixedly connected with one end of the outer sleeve, the inner pull rod is movably inserted in the inner sleeve and is in transmission connection with the separating head, the operating handle is fixedly connected with the other end of the outer sleeve, the other end of the inner pull rod is fixedly connected with a driving piece in the operating handle, when the minimally, the operation handle is pinched by the hand, then the operation handle draws the inner pull rod, then the separation head is drawn by the inner pull rod, then the separation head does the occlusion action and clamps the tissue to be separated, and then the tissue to be separated is separated out.
However, the length of the existing separation forceps is fixed, the applicability is poor, and the separation forceps cannot be adjusted according to specific operation conditions, use habits and height conditions of a main scalpel, when the separation forceps are too long, the main scalpel doctor needs to operate by a high table arm, and is easy to fatigue, when the separation forceps are too short, the main scalpel doctor needs to bend down deeply to operate and is also easy to fatigue, and misoperation is easy to occur in a fatigue state, so that danger is caused to the life safety of a patient, and therefore, a medical instrument for minimally invasive surgery needs to be designed urgently.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide a medical instrument for minimally invasive surgery, which aims to solve the problems that the length of the existing separating forceps in the prior art is fixed, the applicability is poor, the existing separating forceps can not be adjusted according to specific surgery conditions, the using habits and height conditions of a main surgeon, when the separating forceps are too long, the main surgeon needs to operate by a high table arm and is easy to fatigue, when the separating forceps are too short, the main surgeon needs to bend down deeply to operate and is also easy to fatigue, wrong operation is easy to perform in a fatigue state, and danger is caused to the life safety of a patient.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A medical instrument for minimally invasive surgery comprises a holding device, wherein an extending device is arranged inside the holding device.
Preferably, the holding device comprises a fixed handle, a turning shaft is movably inserted on the fixed handle, an occlusion handle is fixedly sleeved on the turning shaft, the top end of the occlusion handle is fixedly connected with an occlusion plate, the top end of the fixed handle is fixedly connected with a fixed cylinder, the occlusion plate is in contact connection with the right end face of the fixed cylinder, a turning wheel is fixedly connected on the right side face of the inner cavity of the fixed cylinder, a tightening device is arranged inside the fixed cylinder, clamping device and drive arrangement, fixedly connected with is located the left division board of clamping device and drive arrangement on the inner wall of fixed cylinder, and the left surface of division board is connected with transmission through compression spring transmission, and the left surface fixedly connected with of interlock board pulls off the line, and the other end that pulls off the line extends to the inside of fixed cylinder and bypasses the interlock board and pass behind the division board with transmission fixed connection, and the left end fixed intercommunication of fixed cylinder has the conical tube.
Preferably, the extension device comprises an extension pipe which is movably inserted in the conical pipe, the fixed cylinder and the transmission device, compression spring, the division board, clamping device's inside, the right-hand member of extension extends out from the right-hand member of a fixed section of thick bamboo, set up flutedly on the top surface of interlock board, recess activity joint is in the outside of extension, the left end of extension is equipped with separator, the track groove has all been seted up on the upper and lower both sides of extension, the inner wall fixedly connected with locating plate of extension, all set up the interlude groove with track groove intercommunication on the upper and lower both sides of locating plate, the activity is pegged graft on the locating plate has the guide vane, the left end fixedly connected with latch device of guide vane, the outside activity of guide vane has cup jointed the extrusion spring, the right-hand member and the locating plate fixed connection of extrusion spring, the left end and the latch device fixed connection of extrusion spring, spacing groove and interlude hole have been.
Preferably, the separating device comprises a butt joint barrel, the right end face of the butt joint barrel is in contact connection with the left end face of the extension pipe, an inserting protrusion is arranged on the right end face of the butt joint barrel, the inserting protrusion is movably inserted into the limiting groove, a traction rod is movably inserted into the butt joint barrel, the right end of the traction rod penetrates through the through hole and extends to the inside of the extension pipe, an inserting groove is formed in the right end of the traction rod, and a separating head is fixedly mounted at the left end of the butt joint barrel.
Preferably, the tightening device includes the locating piece, the inner wall fixed connection of locating piece and fixed section of thick bamboo, the installation cavity has been seted up to the inside of locating piece, activity has cup jointed well core rod on the inner wall of installation cavity, well core rod's outside activity has cup jointed the distortion spring, well core rod's outside fixed cover has cup jointed the take-up pulley, the one end of distortion spring and the inner wall fixed connection of installation cavity, the other end and the take-up pulley fixed connection of distortion spring, the outside winding of take-up pulley has the driving rope, the tip fixed connection of driving rope is on the surface of take-up pulley.
Preferably, clamping device includes the location slide bar, the top of location slide bar and the top surface fixed connection of solid fixed cylinder inner chamber, the bottom of location slide bar and the bottom surface fixed connection of solid fixed cylinder inner chamber, pressure spring and the board of exerting pressure have been cup jointed in the outside activity of location slide bar, the one end of pressure spring and the inner wall fixed connection of solid fixed cylinder, pressure spring's the other end and the board fixed connection of exerting pressure, the wear-resisting piece of fixedly connected with on the another side of the board of exerting pressure, the arc wall has been seted up on the another side of wear-resisting piece, the arc wall lock is in the outside of extension, the inner wall of arc wall and the surface contact of extension.
Preferably, drive arrangement includes actuating lever and adaptation groove, and the one end of actuating lever cup joints with the inner wall activity of a solid fixed cylinder, the other end fixedly connected with trip bar of actuating lever, and the tip of trip bar is connected with the surface contact of applying the clamp plate, and the outside fixed of actuating lever has cup jointed the drive strip, and the adaptation groove is seted up on the bottom surface of a solid fixed cylinder, and adaptation groove and fixedly connected with curved plate are passed to the bottom of drive strip, and torque spring has been cup jointed in the outside activity of actuating lever, torque spring's one end and the inner wall fixed connection of a solid fixed cylinder, torque spring's the other end and drive strip fixed connection.
Preferably, the transmission device comprises a transmission block, the transmission block is connected with the inner wall of the fixed cylinder in a sliding manner, one end of a pulling line is fixedly connected with the right side face of the transmission block, a central hole is formed in the middle of the side face of the transmission block, an extension pipe is movably inserted into the central hole, a containing groove is formed in the transmission block, a rotating shaft is movably sleeved on the inner wall of the containing groove, a restoring spring is movably sleeved on the outer portion of the rotating shaft, one end of the restoring spring is fixedly connected with the surface of the rotating shaft, the other end of the restoring spring is fixedly connected with the inner wall of the containing groove, a limiting gear and a winding wheel are fixedly sleeved on the outer portion of the rotating shaft, a transmission line is wound on the outer portion of the winding wheel, a wire guide wheel is fixedly connected to the inner wall of the central hole and is inserted into the track groove in a sliding manner, the inserting groove is, the cushion chamber has been seted up to the inside of driving block, and the inner wall of cushion chamber is connected with the buffer board through the buffer spring transmission, the inner wall sliding connection of buffer board and cushion chamber, and the another side fixed connection of buffer board has spacing head, and the other end of spacing head extends to the inside of holding tank and with the stop gear meshing, the one end of driving rope pass the division board and extend to the inside of cushion chamber and with buffer board fixed connection.
Preferably, the clamping device comprises an adapter plate, the adapter plate is connected with the inner wall of the extension pipe in a sliding manner, the right side surface of the adapter plate is fixedly connected with one end of the transmission line, the upper surface and the lower surface of the adapter plate are respectively provided with a buckling groove, the buckling grooves are communicated with the rail grooves and are matched with the wire guide wheels, the inner wall of each buckling groove is provided with a fixed groove, the inside of the adapter plate is opened and closed with a positioning cavity, the positioning cavity is fixedly communicated with the fixed grooves, the left side surface of the adapter plate is provided with a bearing hole, the right end of the traction rod is movably inserted into the bearing hole, the insertion groove is positioned inside the bearing hole, the inner wall of the positioning cavity is provided with a fixed hole, the fixed hole corresponds to the insertion groove, a fixed vertical rod is fixedly connected between the upper surface and the lower surface of the inner cavity of the positioning cavity, the outside of the fixed vertical rod is movably sleeved with, the other end of the force storage spring is fixedly connected with the force storage plate, the bottom surface of the force storage plate is fixedly connected with a clamping joint, the bottom end of the clamping joint penetrates through a fixing hole and is movably inserted into the insertion groove, the bottom surface of the inner cavity of the positioning cavity is fixedly connected with a fixing vertical plate, a fixing pin is movably inserted into the fixing vertical plate, a lifting plate is movably sleeved outside the fixing pin and is in contact connection with the bottom surface of the inner cavity of the positioning cavity, a clamping groove is formed in the lifting plate, the clamping groove is movably clamped on the clamping joint, the left end of the lifting plate is fixedly connected with a stress strip, the other end of the stress strip penetrates through a fixing groove and extends into the locking groove, the stress strip corresponds to the wire guide wheel, an arc-shaped slide rod is movably inserted into the stress strip, one end of the arc-shaped slide rod is fixedly connected with the bottom surface of the inner cavity of the positioning cavity, the other end of the arc-shaped slide rod is, the outside activity of arc slide bar has cup jointed reset spring, and reset spring's one end and the bottom surface fixed connection of location intracavity chamber, reset spring's the other end and atress strip fixed connection.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
the extension device is clamped and fixed through the matching of the clamping device and the driving device, so that a doctor can quickly adjust the extending length of the extension device, through the matching of the separating device and the clamping device, a doctor can quickly fix the separating device and the extending device together, through the matching of the tightening device, the clamping device and the driving device, the doctor can remove the limitation on the transmission device, ensure that the transmission distance between the transmission device and the clamping device can be correspondingly changed according to the extending length of the extending device, therefore, the purpose of adjusting the length of the medical instrument for minimally invasive surgery is achieved, a doctor can adjust the length of the medical instrument for minimally invasive surgery according to specific surgery conditions, self use habits and height conditions, the applicability is better, and the practicability of the medical instrument for minimally invasive surgery is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the internal structure of the extension device of FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the internal structure of the clamping device shown in FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention;
FIG. 6 is a top view of the lift plate of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view showing the internal structure of the tightening mechanism of FIG. 2 according to the present invention;
FIG. 8 is a cross-sectional view taken at B-B of FIG. 7 in accordance with the present invention;
FIG. 9 is a schematic view of the clamping device of FIG. 2 according to the present invention;
FIG. 10 is a cross-sectional view taken at C-C of FIG. 9 in accordance with the present invention;
FIG. 11 is a schematic view of the internal structure of the transmission of FIG. 2 according to the present invention;
FIG. 12 is a cross-sectional view taken at D-D of FIG. 11 in accordance with the present invention;
FIG. 13 is an enlarged view of the structure of FIG. 11 at E in accordance with the present invention.
The reference numbers in the figures illustrate:
1. a holding device; 10. a tapered tube; 11. fixing a handle; 12. a turning shaft; 13. an occlusive handle; 14. a bite plate; 15. a fixed cylinder; 16. a turning wheel; 17. a separator plate; 18. a compression spring; 19. a pulling wire; 2. an extension device; 21. an extension pipe; 22. a track groove; 23. positioning a plate; 24. inserting the slot; 25. a guide piece; 26. a compression spring; 27. a limiting groove; 28. inserting holes; 3. a separation device; 31. a docking barrel; 32. inserting and connecting the bulges; 33. a traction rod; 34. inserting grooves; 35. a separation head; 4. a tightening device; 41. positioning blocks; 42. a mounting cavity; 43. a center pole; 44. a torsion spring; 45. a take-up pulley; 46. a drive rope; 5. a clamping device; 51. positioning the slide bar; 52. a pressure applying spring; 53. pressing a plate; 54. a wear-resistant block; 55. an arc-shaped slot; 6. a drive device; 61. a drive rod; 62. a turning rod; 63. a drive bar; 64. an adaptation groove; 65. a curved plate; 66. a torsion spring; 7. a transmission device; 701. a transmission block; 702. a central bore; 703. accommodating grooves; 704. a rotating shaft; 705. restoring the clockwork spring; 706. a limit gear; 707. a reel; 708. a drive line; 709. a wire guide wheel; 710. a buffer chamber; 711. a buffer spring; 712. a buffer plate; 713. a limiting head; 8. a clamping device; 801. a switching disk; 802. buckling the groove; 803. fixing grooves; 804. a positioning cavity; 805. a socket hole; 806. a fixing hole; 807. fixing the vertical rod; 808. a power storage spring; 809. a force storage plate; 810. a clamping head; 811. fixing a vertical plate; 812. fixing the pin; 813. lifting the plate; 814. a clamping groove; 815. a stress strip; 816. an arc-shaped sliding rod; 817. a reinforcing block; 818. a return spring.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; rather than all embodiments. Based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
Referring to fig. 1-13, a medical apparatus for minimally invasive surgery includes a holding device 1, and an
The holding device 1 comprises a fixed
The extension device 2 comprises an extension pipe 21, the extension pipe 21 is movably inserted in the tapered pipe 10, the fixed cylinder 15, the transmission device 7, the compression spring 18, the isolation plate 17 and the clamping device 5, the right end of the extension pipe 21 extends out from the right end of the fixed cylinder 15, the top surface of the occlusal plate 14 is provided with a groove, the groove is movably clamped outside the extension pipe 21, the left end of the extension pipe 21 is provided with the separation device 3, the upper and lower surfaces of the extension pipe 21 are both provided with track grooves 22, the inner wall of the extension pipe 21 is fixedly connected with a positioning plate 23, the upper and lower surfaces of the positioning plate 23 are both provided with insertion grooves 24 communicated with the track grooves 22, the positioning plate 23 is movably inserted with a guide sheet 25, the left end of the guide sheet 25 is fixedly connected with the clamping device 8, the outer part of the guide sheet 25 is movably sleeved with an extrusion spring 26, the right end of the extrusion spring 26 is fixedly connected with the positioning plate 23, the, the left end surface of the extension pipe 21 is provided with a limit groove 27 and a through hole 28.
The
Tightening
Clamping
Drive
The transmission device 7 comprises a transmission block 701, the transmission block 701 is connected with the inner wall of the fixed cylinder 15 in a sliding manner, one end of a pulling line 19 is fixedly connected with the right side surface of the transmission block 701, the middle part of the side surface of the transmission block 701 is provided with a central hole 702, an extension pipe 21 is movably inserted into the central hole 702, the inside of the transmission block 701 is provided with an accommodating groove 703, the inner wall of the accommodating groove 703 is movably sleeved with a rotating shaft 704, the outside of the rotating shaft 704 is movably sleeved with a restoring spring 705, one end of the restoring spring 705 is fixedly connected with the surface of the rotating shaft 704, the other end of the restoring spring 705 is fixedly connected with the inner wall of the accommodating groove 703, the outside of the rotating shaft 704 is fixedly sleeved with a limit gear 706 and a winding wheel 707, the outside of the winding wheel 707 is wound with a transmission line 708, the inner wall of the central hole 702 is fixedly connected with, the other end of the transmission line 708 penetrates through the rail groove 22, bypasses the wire guide wheel 709 and penetrates through the insertion groove 24 and then is fixedly connected with the clamping device 8, a buffer cavity 710 is formed in the transmission block 701, the inner wall of the buffer cavity 710 is connected with a buffer plate 712 in a transmission mode through a buffer spring 711, the buffer plate 712 is connected with the inner wall of the buffer cavity 710 in a sliding mode, a limiting head 713 is fixedly connected to the other side of the buffer plate 712, the other end of the limiting head 713 extends into the accommodating groove 703 and is meshed with the limiting gear 706, one end of the transmission rope 46 penetrates through the isolation plate 17 and extends into the buffer cavity 710 and is fixedly connected with the buffer plate 712, and when the transmission block 701 is in contact with the inner wall of the tapered tube 10, the transmission rope 46 is completely released from the.
The clamping device 8 comprises an adapter plate 801, the adapter plate 801 is connected with the inner wall of the extension pipe 21 in a sliding manner, the right side surface of the adapter plate 801 is fixedly connected with one end of a transmission line 708, the upper surface and the lower surface of the adapter plate 801 are respectively provided with a buckling groove 802, the buckling grooves 802 are communicated with the rail grooves 22, the buckling grooves 802 are matched with wire guide wheels 709, the inner wall of the buckling grooves 802 is provided with fixing grooves 803, the inside of the adapter plate 801 is opened and closed with a positioning cavity 804, the positioning cavity 804 is fixedly communicated with the fixing grooves 803, the left side surface of the adapter plate 801 is provided with a bearing hole 805, the right end of the traction rod 33 is movably inserted in the bearing hole 805, the insertion groove 34 is positioned in the bearing hole 805, the inner wall of the positioning cavity 804 is provided with a fixing hole 806, the fixing hole 806 corresponds to the insertion groove 34, a fixing vertical rod 807 is fixedly connected between the upper surface and the lower surface of the inner cavity of the positioning cavity 804, one end of a power storage spring 808 is fixedly connected with the inner wall of the positioning cavity 804, the other end of the power storage spring 808 is fixedly connected with a power storage plate 809, the bottom surface of the power storage plate 809 is fixedly connected with a clamping joint 810, the bottom end of the clamping joint 810 passes through a fixing hole 806 and is movably inserted in the insertion groove 34, the bottom surface of the inner cavity of the positioning cavity 804 is fixedly connected with a fixed vertical plate 811, a fixed pin 812 is movably inserted in the fixed vertical plate 811, a lifting plate 813 is movably sleeved outside the fixed pin 812, the lifting plate 813 is in contact connection with the bottom surface of the inner cavity of the positioning cavity 804, a clamping groove 814 is formed in the lifting plate 813, the clamping groove 814 is movably clamped on the clamping joint 810, a stress strip 815 is fixedly connected with the left end of the lifting plate 813, the other end of the stress strip 815 passes through the fixing groove 803 and extends into the clamping groove 802, the stress strip 815 corresponds to a wire wheel 709, and an arc-shaped sliding, one end of the arc-shaped sliding rod 816 is fixedly connected with the bottom surface of the inner cavity of the positioning cavity 804, the other end of the arc-shaped sliding rod 816 is fixedly connected with a reinforcing block 817, the top end of the reinforcing block 817 is fixedly connected with the top surface of the inner cavity of the positioning cavity 804, a return spring 818 is movably sleeved outside the arc-shaped sliding rod 816, one end of the return spring 818 is fixedly connected with the bottom surface of the inner cavity of the positioning cavity 804, and the other end of the return spring 818 is fixedly connected with a stress bar 815.
The working principle is as follows:
firstly, holding the fixed handle 11 by hand and buckling the curved plate 65 to the right by fingers, then the curved plate 65 turns over counterclockwise by the driving bar 63, the driving bar 61 and the overturning bar 62, then the overturning bar 62 applies thrust to the pressing plate 53, then the pressing plate 53 carries the wear-resistant block 54 to be far away from the extension pipe 21 and applies work to the pressing spring 52, so that the elastic potential energy of the pressing spring 52 is increased, then the arc-shaped groove 55 is separated from the extension pipe 21, then the extension pipe 21 is released, in the process, the pressing plate 53 applies thrust to the driving rope 46, then the driving rope 46 bends and deforms and pulls the buffer plate 712, then the buffer plate 712 carries the limiting head 713 to move towards the inside of the buffer chamber 710, then the limiting head 713 is separated from the limiting gear 706, the limitation on the rotating shaft 704 is released, then the extension pipe 21 is pulled leftwards, then the extension pipe 21 moves leftwards, then the extension pipe 21 extends out of length, until the extended length of the left end of the extension pipe 21 reaches the target length, in the process, the extension pipe 21 carries the clamping device 8 to move leftwards relative to the transmission device 7 through the positioning plate 23 and the pressing spring 26, then the adapter plate 801 pulls the transmission line 708, then the transmission line 708 is released from the outside of the reel 707 and drives the reel 707 to rotate, then the reel 707 carries the rotating shaft 704 to rotate, the rotating shaft 704 works on the restoring spring 705, the torsional potential energy of the restoring spring 705 is increased, then the rotating shaft 704 carries the limiting gear 706 to rotate, the transmission distance between the clamping device 8 and the transmission device 7 automatically performs corresponding adjustment along with the change of the extended length of the left end of the extension pipe 21, then the curved plate 65 is loosened, then the driving strip 63 is overturned clockwise through the driving rod 61 under the torsional force of the torsion spring 66, then the pressing plate 53 carries the wear-resisting block 54 to move towards the extension pipe 21 under the elastic force of the pressing spring, then the arc-shaped groove 55 is buckled on the surface of the extension pipe 21, the inner wall of the arc-shaped groove 55 is attached to the surface of the extension pipe 21, the extension pipe 21 is fixed by utilizing the friction force between the inner wall of the arc-shaped groove 55 and the surface of the extension pipe 21, then the buffer plate 712 drives the limiting head 713 to move towards the inside of the accommodating groove 703 under the action of the elastic force of the buffer spring 711, then the limiting head 713 is meshed with the limiting gear 706, the limiting gear 706 is fixed, the transmission distance between the transmission device 7 and the clamping device 8 is fixed, the length of the medical instrument for minimally invasive surgery is adjusted, then the butt joint barrel 31 is held by hand, the right end of the pulling rod 33 is aligned with the through insertion hole 28, then the separation device 3 is moved towards the extension pipe 21, then the right end of the pulling rod 33 passes through the through insertion hole 28 and is inserted into the through insertion hole 805, meanwhile, the butt joint barrel 31 is rotated, and the, then the pulling rod 33 applies pushing force to the clamping head 810, then the clamping head 810 moves towards the inside of the positioning cavity 804, then the clamping head 810 is aligned with the insertion groove 34, then the force accumulation plate 809 drives the clamping head 810 to move towards the inside of the insertion groove 34 under the action of the elastic force of the force accumulation spring 808, the pulling rod 33 is clamped, at the moment, the right end face of the butt joint cylinder 31 is contacted with the left end face of the extension pipe 21, the insertion protrusion 32 is inserted into the limiting groove 27, the butt joint cylinder 31 cannot rotate relative to the extension pipe 21, splicing and fixing of the separation device 3 are completed, then the meshing handle 13 is buckled, then the meshing handle 13 drives the meshing plate 14 to rotate clockwise by taking the overturning shaft 12 as a central shaft, then the meshing plate 14 pulls the pulling wire 19 rightwards, then the pulling wire 19 pulls the transmission device 7 rightwards, then the transmission device 7 pulls the rightwards to the clamping device 8, then the pulling device 8 pulls the, then the separating head 35 performs an engagement action, in the process, the transmission device 7 moves rightwards to enable the transmission rope 46 to be loosened, then the take-up pulley 45 rotates under the torsional force of the torsion spring 44, then the transmission rope 46 winds the outside of the take-up pulley 45 to ensure that the transmission rope 46 is always in a stretched state and cannot wind with other parts, then the engagement handle 13 is loosened, then the transmission device 7 moves leftwards under the elastic force of the compression spring 18 and pulls the transmission rope 46 and the pulling wire 19, then the transmission rope 46 is released from the outside of the take-up pulley 45, the pulling wire 19 pulls the engagement plate 14 leftwards, the engagement plate 14 carries the engagement handle 13 to turn anticlockwise by taking the turning shaft 12 as a central shaft until the engagement plate 14 is contacted with the right end face of the fixed cylinder 15, then the clamping device 8 carries the pulling rod 33 to move leftwards under the elastic force of the extrusion spring 26, then the separating head 35, the separating head 35 is opened and closed by reciprocating in this way, when the separating device 3 needs to be disassembled, the driving device 6 is buckled, the extending device 2 is pushed to move rightwards, the wire guide wheel 709 penetrates through the inserting slot 24 and is inserted into the buckling slot 802, then the wire guide wheel 709 applies thrust to the force bearing strip 815, then the force bearing strip 815 drives the lifting plate 813 to rotate anticlockwise by taking the fixing pin 812 as a central shaft, then the lifting plate 813 jacks up the force storage plate 809, then the force storage plate 809 drives the clamping head 810 to move towards the inside of the positioning cavity 804, then the clamping head 810 is separated from the inserting slot 34, the limitation on the separating device 3 is removed, and then the separating device 3 can be disassembled by pulling the separating device 3 leftwards.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
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