Hair-buckling safety device of continuous hair clip applier
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to run a fire and execute knot of clamp and send out safeties.
Background
Clip appliers are a common medical device generally used in surgical procedures for clipping blood vessels to stop bleeding, and are also called hemostatic clips. When the existing continuous hair clip applier pushes a closed clip in a storage bin, the feeding device and the pushing handle respectively complete the actions of pushing the closed clip and clamping the closed clip, and in the operation process, due to the fact that the feeding device and the pushing handle are close in installation distance, the feeding device is easily touched, the misoperation of the continuous hair clip applier is caused, the feeding device is made to retreat, the closed clip in the storage bin is loosened to cause displacement, and the continuous use of the continuous hair clip applier is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need for a hair-fastening safety device for a hair clip of a lockable feeding device with a simple structure.
A hair buckling safety device of a continuous hair clip applier is used for sending a closed clip, the clip applier comprises a push handle, a pipe rod and a binding clip arranged at the front end of the pipe rod, a feeding device, a push-pull rod and a storage bin are arranged in the pipe rod, the feeding device comprises a conveying piece, the hair buckling safety device comprises a fixing piece, a gear assembly and a safety shaft, the gear assembly is used for pushing the conveying piece to move, the gear assembly is arranged on the fixing piece through the safety shaft and rotates relative to the fixing piece, and the safety shaft is used for locking or unlocking the gear assembly; the safety shaft comprises an elastic piece, a base and a shaft pin which are oppositely arranged and are connected through threads, the elastic piece is supported between the fixing piece and the base, and when the shaft pin and the base are screwed tightly, the base is tightly attached to the gear assembly, so that the gear assembly cannot rotate; and the engagement between the shaft pin and the base is released, the elastic piece pushes the base to release the gear assembly, and the gear assembly rotates freely.
Further, the push handle is connected with a mounting pipe, the conveying piece is arranged in the mounting pipe, the rear end of the conveying piece is provided with a tooth stripe, and a rack groove is formed in the position, corresponding to the tooth stripe, of the mounting pipe.
Further, the gear assembly includes a gear extending into the rack slot and engaging the rack thread, and a wheel handle remote from the gear for rotating the gear assembly.
Furthermore, the fixing piece is fixedly arranged on two sides of the rack slot in the length direction respectively, and is provided with a first fixing hole and a safety hole, and the safety hole is arranged between the rack slot and the first fixing hole; the gear assembly is provided with a second fixing hole and an arc-shaped through hole, the direction of the arc-shaped through hole is the same as that of the gear, and the arc-shaped through hole is arranged between the gear and the second fixing hole.
Furthermore, the gear assembly is arranged between the two fixing pieces, the position of the first fixing hole corresponds to the position of the second fixing hole, the distance from the safety hole to the first fixing hole is consistent with the radius from the arc-shaped through hole to the second fixing hole, and when the gear assembly rotates, the arc-shaped through hole is overlapped with the safety hole.
Further, a fixed shaft penetrates through the second fixed hole and the first fixed hole, and the gear assembly rotates by taking the fixed shaft as a shaft; the safety shaft penetrates through the safety hole and the arc-shaped through hole.
Further, the shaft pin of the safety shaft is provided with an external thread, the base is provided with a threaded hole, and the shaft pin is fixedly arranged in the base in a threaded rotation mode.
Further, the base includes first nut and screw post, first nut is located the outside top of screw post, the external diameter of screw post with distance between two inside walls of arc through-hole is the same, the top of screw post has the pylon, the diameter of pylon is less than distance between two inside walls of arc through-hole.
Further, the diameter of the first nut is larger than that of the threaded column, a groove is formed in the inner side of the first nut, a concave table is arranged at the top end of the outer side of the safety hole, the diameter of the concave table is larger than that of the safety hole, and two ends of the elastic piece are respectively arranged at the bottom of the groove and the bottom of the concave table in a propping mode.
Further, the shaft pin comprises a second nut and a bolt column, the second nut is arranged at the top end of the outer side of the bolt column, the diameter of the second nut is larger than that of the bolt column, a protruding handle is arranged on the outer side of the second nut, and the handle is used for rotating the shaft pin.
In the hair-buckling safety device of the continuous hair clip applier, the feeding device of the continuous hair clip applier pushes the closing clip in the storage bin to enter the tong head, the push handle pulls the push-pull rod to enable the tong head to clamp the closing clip, the feeding device and the push handle work alternately, when the push handle acts, the safety shaft locks the driving piece, so that the driving piece cannot push the conveying piece to move, and the phenomenon that the conveying piece retreats when the continuous hair clip applier is normally used to cause the closing clip in the storage bin to move loosely can be prevented; the driving piece can be prevented from pushing the conveying piece to advance due to misoperation, the closing clamp is caused to enter the clamp head, and the closing clamp is clamped by the clamp head. The hair-buckling safety device enables the continuous hair clip applier to be safer, more reliable and smoother to use. The utility model has the advantages of simple structure, easily realize, low cost, facilitate promotion.
Drawings
Fig. 1 is a cross-sectional view of a hair-catching safety device of a continuous hair clip applier in accordance with an embodiment of the present invention.
Fig. 2 is a cross-sectional view of a safety shaft of a hair-catching safety device of a hair-repeating clip applier in accordance with an embodiment of the present invention.
Fig. 3 is an exploded view of the structure of the hair-fastening safety device of the continuous hair clip applier of the present invention.
Fig. 4 is a schematic structural view of a hair-fastening safety device of the continuous hair clip applier of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and drawings.
Referring to fig. 1, 3 and 4, a hair fastening safety device 100 of a continuous hair clip applier is shown, the continuous hair clip applier 1000 is used for dispensing a closed clip, the continuous hair clip applier 1000 comprises a pushing handle 200, a pipe rod 300 and a jaw 400 mounted at the front end of the pipe rod 300, a feeding device 500, a push-pull rod and a storage bin are arranged in the pipe rod 300, the feeding device 500 comprises a conveying member, the hair fastening safety device comprises a fixing member 10, a gear assembly 20 and a safety shaft 30, the gear assembly 20 is used for pushing the conveying member to move, the gear assembly 20 is mounted on the fixing member 10 through the safety shaft 30 and rotates relative to the fixing member 10, and the safety shaft 30 is used for locking or unlocking the gear assembly 20; the safety shaft 30 comprises an elastic member 33, and a base 31 and a shaft pin 32 which are oppositely arranged and connected through a thread, wherein the elastic member 33 is supported between the fixing member 10 and the base 31, and when the shaft pin 32 is screwed with the base 31, the base 31 is tightly attached to the gear assembly 20, so that the gear assembly 20 cannot rotate; the engagement between the shaft pin 32 and the base 31 is released, the elastic member 33 pushes the base 31 to release the gear assembly 20, and the gear assembly 20 rotates freely.
Please refer to the chinese patent application with application number 201810646052.4, which is applied by huangrongquan at 2018, 6, 21, and the detailed structure of the clip applier 1000 is not described herein.
Specifically, in this embodiment, the side of the continuous hair clip applier near the bit 400 is the front end, and the side opposite to the front end is the rear end.
Further, the pushing handle 200 is connected with a mounting tube 210, the conveying member is arranged in the mounting tube 210, the rear end of the conveying member is provided with a tooth stripe 510, and a rack groove is formed in the mounting tube 210 corresponding to the tooth stripe 510. The gear assembly 20 includes a gear 21 and a wheel handle 22 at a side remote from the gear 21, the gear 21 extends into the rack slot and engages with the teeth stripes 510, and the wheel handle 22 is used to rotate the gear assembly 20. The fixing part 10 is respectively and fixedly arranged at two sides of the length direction of the rack slot, the fixing part 10 is provided with a first fixing hole 11 and a safety hole 12, and the safety hole 12 is arranged between the rack slot and the first fixing hole 11; the gear assembly 20 has a second fixing hole 24 and an arc through hole 23, and the arc through hole 23 is in the same direction as the gear 21 and is disposed between the gear 21 and the second fixing hole 24. The gear assembly 20 is arranged between the two fixing pieces 10, the position of the first fixing hole 11 corresponds to the position of the second fixing hole 24, the distance from the safety hole 12 to the first fixing hole 11 is consistent with the radius from the arc-shaped through hole 23 to the second fixing hole 24, and when the gear assembly 20 rotates, the arc-shaped through hole 23 coincides with the safety hole 12.
Specifically, the gear 21 and the arc through hole 23 are respectively disposed on concentric circles having different radiuses and centered on the second fixing hole 24, when the gear assembly 20 rotates, the gear 21 and the arc through hole 23 rotate synchronously, the gear 21 is used for pushing the conveying member to move to the front end, and the safety hole 12 coincides with the arc through hole 23 from beginning to end so as to control the rotating angle of the gear assembly 20, thereby controlling the moving distance of the conveying member to the front end.
Further, a fixed shaft 40 penetrates through the second fixed hole 24 and the first fixed hole 11, and the gear assembly 20 rotates around the fixed shaft 40; the safety shaft 30 penetrates through the safety hole 12 and the arc-shaped through hole 23.
Further, referring to fig. 2, the shaft pin 32 of the safety shaft 30 has an external thread, the base 31 has a threaded hole, and the shaft pin 32 is rotatably fixed in the base 31 through a thread. The base 31 comprises a first nut 311 and a threaded column 312, the first nut 311 is arranged at the top end of the outer side of the threaded column 312, the outer diameter of the threaded column 312 is equal to the distance between the two inner side walls of the arc-shaped through hole 23, the top end of the threaded column 312 is provided with a column table 3121, and the diameter of the column table 3121 is smaller than the distance between the two inner side walls of the arc-shaped through hole 23. The diameter of first nut 311 is greater than the diameter of screw post 312, first nut 311 inboard has recess 3111, the top of the safety hole 12 outside has the concave station, the diameter of concave station is greater than the diameter of safety hole 12, locate respectively in the both ends of elastic component 33 top recess 3111 with the bottom of concave station. The shaft pin 32 comprises a second nut 321 and a bolt column 322, the second nut 321 is arranged at the top end of the outer side of the bolt column 322, the diameter of the second nut 321 is larger than that of the bolt column 322, a protruding handle is arranged on the outer side of the second nut 321, and the handle is used for rotating the shaft pin 32.
Specifically, the second nut 321 is rotated to loosen the engagement between the shaft pin 32 and the base 31, the elastic member 33 ejects the base 31 from the arc-shaped through hole 23, and the gear assembly 20 can rotate freely; after the gear assembly 20 is rotated to a desired position, the second nut 321 is screwed to tightly engage the shaft pin 32 with the base 31, the elastic member 33 is compressed, the outer side wall of the base 31 is tightly attached to the inner side wall of the arc-shaped through hole 23, and the gear assembly 20 cannot rotate, so that the gear assembly 20 is locked.
In the hair-fastening safety device 100 of the continuous hair clip applier, the feeding device 500 of the continuous hair clip applier pushes the closing clip in the storage bin to enter the binding clip 400, the push-pull rod is pulled by the push-pull handle 200 to enable the binding clip 400 to clamp the closing clip, when the feeding device 500 and the push-pull handle 200 work alternately, the safety shaft 30 locks the driving element when the push-pull handle 200 acts, so that the driving element cannot push the conveying element to move, and the conveying element can be prevented from moving back when the continuous hair clip applier is normally used, and the closing clip in the storage bin is prevented from moving; the driving part is prevented from pushing the conveying part to advance due to misoperation, so that a closing clamp enters the clamp head 400, and the clamp head 400 is prevented from clamping the closing clamp. The hair-buckling safety device enables the continuous hair clip applier to be safer, more reliable and smoother to use. The utility model has the advantages of simple structure, easily realize, low cost, facilitate promotion.
It should be noted that the present invention is not limited to the above embodiments, and other changes can be made by those skilled in the art according to the spirit of the present invention, and all the changes made according to the spirit of the present invention should be included in the scope of the present invention.