CN109394292B - Clip applying device of blood vessel clip applying device - Google Patents
Clip applying device of blood vessel clip applying device Download PDFInfo
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- CN109394292B CN109394292B CN201810915634.8A CN201810915634A CN109394292B CN 109394292 B CN109394292 B CN 109394292B CN 201810915634 A CN201810915634 A CN 201810915634A CN 109394292 B CN109394292 B CN 109394292B
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- push rod
- nail
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- positioning pin
- rod
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- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 21
- 230000000149 penetrating effect Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 210000000080 chela (arthropods) Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 206010052428 Wound Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 230000029663 wound healing Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002357 laparoscopic surgery Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
- A61B17/1285—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips for minimally invasive surgery
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a clamping device of a blood vessel clamping device, which is characterized in that a clamp mouth pull rod is fixedly arranged in an outer tube, the front end of the clamp mouth pull rod is combined with a clamping mouth part extending out of the outer tube, a track for accommodating more than two clamping nails is arranged behind the clamping mouth part, a nail pusher is arranged behind the clamping nails, the top of the nail pusher is provided with a propelling elastic sheet, an upper nail push rod is arranged in the outer tube and provided with a plurality of propelling holes capable of propelling the propelling elastic sheet, when the upper nail push rod moves forwards and backwards, the nail pusher can be sequentially pushed forwards by the propelling holes to enable the clamping nails to respectively enter the clamping mouth part, the clamping mouth part is driven by the clamp mouth part to clamp the clamping nails, the clamping device is formed by a structure which has fewer parts and does not need a spring to propel the nail pusher, and the effect of reducing the diameter and miniaturizing the clamping device is achieved.
Description
Technical Field
The invention relates to a structure of a surgical instrument, in particular to a clamping device of a blood vessel clamping applicator, which has fewer parts and can reduce the pipe diameter of the device.
Background
In the performance of laparoscopic surgery, it is necessary to close blood vessels to prevent blood loss from the incision at the surgical site, and surgical instruments for closing blood vessels, such as a blood vessel clip applier, are used to close the blood vessels. The use mode of the blood vessel clip applier is mainly that a long rod-shaped clip applying unit of the blood vessel clip applier extends into a human body from an opening cut on the surface of the human body, then a part of an operation handle drives the clip applying unit to act, and a blood vessel clamp is pressed on a blood vessel to close the blood vessel in a mode that a clamping part at the front end of the clip applying unit clamps and sequentially conveys the blood vessel clamp to the inner side of the clamping part.
The prior blood vessel clip applier is used for extending a long rod-shaped clip applying unit at the front end into a human body during operation, for example, taiwan patent application No. 104118985 "automatic clip applier" invention patent application (publication No. 201642812), in which a clip applying unit is provided inside an outer sleeve, the front end of the clamping unit is provided with a clamping part, a clamping unit which pushes each vascular clamp to move forwards is arranged in cooperation with the clamping part, a first sleeve and a second sleeve are respectively sleeved at the front and rear positions of the rear end part of the clamping unit, the clamping part is driven to be clamped by the forward movement of the first sleeve, the second sleeve is driven to move forward by the front section of the forward movement process of the first sleeve, the second sleeve is separated from the state of synchronous movement with the first sleeve at the rear section of the forward movement process of the first sleeve, at this time, the second sleeve can be driven to move backwards, and the action of the second sleeve moving forwards and backwards can drive the clamping unit to push a vascular clamp into the inner side of the clamping part for clamping the clamping part.
The clamping unit of the prior automatic clamping device drives the first sleeve and the second sleeve by the holding unit. However, since the conventional clip applying unit includes many parts and requires a large space for assembling the parts, the assembled pipe diameter is about 10mm in width, and the pipe diameter of the clip applying unit structure cannot be further reduced in consideration of the strength required for the structure. However, when the clamping unit with the tube diameter of 10mm is used for operation, a large wound needs to be formed on a human body before the clamping unit can be inserted into the human body for operation, and thus, the wound of a patient can heal slowly after the operation. The structure of the existing clamping unit can not provide better instruments for users to use, and the wound healing effect after the operation can not be improved.
Disclosure of Invention
Because the existing clamping device has more parts, the pipe diameter of the blood vessel clamping device extending out of the clamp cannot be miniaturized, and better instruments for operation cannot be provided. Therefore, the invention designs the clamping device with fewer parts, and achieves the effect of reducing the diameter of the clamp tube of the blood vessel clamping device.
To achieve the above object, the present invention provides a clip applying device of a blood vessel clip applier, which comprises:
an outer tube which is a round long tube body extending along the front-back direction;
a nail feeding assembly of a clamp mouth, which is arranged in the outer tube in a penetrating way and is fixedly provided with a clamp mouth pull rod in the outer tube, the clamp mouth pull rod is a long sheet body extending along the front-back direction, the front end of the clamp mouth is penetrated out of the front end of the outer tube, the front end of the clamp mouth is provided with a clamp mouth part, two clamp mouth ribs are formed at the left side and the right side of the bottom surface of the clamp mouth part, the top surface of the clamp mouth pull rod is fixedly provided with a nail groove, a track extending along the front-back direction is formed in the nail groove, the front end of the track is right opposite to the rear end of the clamp mouth part, the bottom surface of the nail groove is provided with a plurality of nail pusher positioning holes in a front-back equal interval arrangement way, more than two clamps are arranged in the track from front to back in a connecting way, a nail pusher is arranged in the track in a sliding way, the bottom and the top of the nail pusher are respectively provided with a positioning elastic sheet and a propelling elastic sheet, the free end of the positioning elastic sheet is clamped against one of the nail, the free end of the pushing elastic sheet faces upwards and extends out of the nail groove backwards, and the front end of the nail pusher is used for pushing the rearmost clamping nail;
the upper nail push rod is arranged in the outer pipe in a penetrating way and attached to the top surface of the nail groove, a plurality of pushing holes are formed in the upper nail push rod in a front-back equal interval arrangement mode, and the free end of each pushing elastic sheet is positioned in one of the pushing holes; and
the covered push rod assembly is provided with a covered push rod, the covered push rod penetrates through the outer pipe and is attached to the bottom surface of the clamp mouth pull rod, the front end of the covered push rod is provided with a clamp mouth clamp, a clamp groove with an opening in the front is formed in the clamp mouth clamp, and the front end of the clamp groove is sleeved at the rear ends of the two clamp mouth ribs.
Furthermore, the front end of the upper nail pushing rod is provided with a nail pulling sheet, the top of the nail pusher protrudes upwards to form a stop block, the top side of the front end part of the rail is matched with the stop block to form a stop part with a width narrower than that of the stop block, and the stop part can stop the stop block to prevent the nail pusher from moving out of the rail forwards.
Furthermore, the rear ends of the upper nail push rod and the upper nail push rod respectively penetrate out of the rear end of the outer tube backwards, an upper nail push rod rear long hole and an upper nail push rod hole are respectively arranged at the front and rear positions of the rear end part of the upper nail push rod in a penetrating mode, the position of the upper nail push rod rear long hole is matched with the position of the upper nail push rod rear long hole, an upper nail push rod hole is arranged at the rear end part of the upper nail push rod in a penetrating mode, a hook piece part extends backwards from the rear end of the upper nail push rod, a notch is formed by inwards recessing the side of the hook piece part, a barb is formed at the rear end of the hook piece part and is adjacent to the rear side of the notch, the height of the barb is smaller than the depth of the notch, and the front and rear positions of the upper nail push rod hole are located.
Furthermore, the rear end of the outer tube is combined with a sliding sleeve, the sliding sleeve is a tube body extending along the front-rear direction, the front end part of the sliding sleeve is sleeved and fixed at the rear end part of the outer tube, the positions of the upper nail push rod rear long hole and the covering push rod hole are matched, the sliding sleeve penetrates through a covering push rod positioning pin long hole, the positions of the upper nail push rod hole and the notch are matched, the sliding sleeve penetrates through a feeding rod positioning pin long hole, and the front end of the feeding rod positioning pin long hole forms an inclined plane; a covered push rod sliding sleeve is sleeved at the position of the outer pipe, which is provided with the long hole of the covered push rod positioning pin, the covered push rod sliding sleeve penetrates through a covered push rod positioning pin hole, a covered push rod positioning pin is inserted and fixed in the covered push rod positioning pin hole, the covered push rod positioning pin penetrates through the rear long hole of the upper nail push rod, and the covered push rod positioning pin is inserted in the covered push rod hole; the material loading rod positioning pin hole is a long hole in the same direction as the tangential direction of the sliding sleeve pipe, a material loading rod positioning pin is inserted in the material loading rod positioning pin hole, the material loading rod positioning pin penetrates through the notch, and the material loading rod positioning pin is inserted in the nail loading push rod hole.
Furthermore, the rear end of the sliding sleeve penetrates through a spring positioning pin hole, a spring positioning pin is inserted and fixed in the spring positioning pin hole, a spring hook hole is formed in the inverted hook in a penetrating mode, and a covering spring is arranged between the spring hook hole and the spring positioning pin in a hooking and buckling mode, so that the covering push rod positioning pin abuts against the rear end of the long hole of the covering push rod positioning pin.
Furthermore, the rear end part of the outer tube penetrates through an outer tube fixing long hole, and a clamp mouth pull rod fixing hole is arranged in the clamp mouth pull rod in a penetrating mode corresponding to the position of the outer tube fixing long hole; the upper nail push rod penetrates through a front long hole of the upper nail push rod corresponding to the position of the outer pipe fixing long hole, and the front long hole of the upper nail push rod is positioned in front of a rear long hole of the upper nail push rod; a covering push rod long hole is arranged in the covering push rod in a penetrating way corresponding to the position of the outer pipe fixing long hole; the shape of the outer tube fixing long hole is matched, two embedding blocks are respectively formed on two opposite sides of the inner peripheral surface of the outer tube, the embedding blocks are embedded into the outer tube fixing long hole for positioning, a fixing bolt hole penetrates through the position where the embedding blocks are arranged on the sliding sleeve, a fixing bolt penetrates through the fixing bolt hole, the fixing bolt penetrates through the upper nail push rod front long hole and the covering push rod long hole, the fixing bolt penetrates through the clamp mouth pull rod fixing hole, and the position of the clamp mouth pull rod is fixedly arranged in the outer tube.
Furthermore, the sliding sleeve comprises two buckled half-tube shells, the spring positioning pin holes are arranged at the rear ends of the two half-tube shells in a penetrating manner, a fixing sleeve is sleeved at the rear ends of the two half-tube shells, a bolt hole is arranged in the fixing sleeve in a penetrating manner, and two ends of the spring positioning pin are inserted into the bolt hole fixed on the fixing sleeve.
Furthermore, the rear end of the forceps mouth pull rod penetrates out of the rear end of the outer tube backwards, a forceps mouth pull rod long hole is formed in the rear end of the forceps mouth pull rod in a penetrating mode, and the covering push rod positioning pin penetrates through the forceps mouth pull rod long hole.
When the nail pusher is used, the upper nail push rod is driven to move forwards, the rear end edge of one of the pushing holes abuts against the free end of the nail pusher, the nail pusher is pushed forwards to the position where the positioning elastic sheet is clamped and abutted against the positioning hole of the next nail pusher, the frontmost clamping nail is pushed into the clamping mouth part by the front end of the nail pusher in the process, then the upper nail push rod is driven to move backwards, so that the free end of the pushing elastic sheet of the nail pusher which moves forwards falls into the pushing hole which pushes the nail pusher forwards, and the nail pusher is driven to move forwards next time. When the foremost clamping nail enters the clamping mouth part, the covering push rod is driven to move forwards, the covering push rod pushes the clamp mouth clamping device to move forwards, and the clamping groove of the clamp mouth clamping device is utilized to tightly press the two clamping mouth ribs to tightly drive the clamping mouth part to clamp the clamping nail.
The invention has the beneficial effects that:
the nail pusher and the jaw part of the forceps nozzle nail feeding assembly in the outer tube can be driven to finish the nail feeding and clamping operation only by the nail feeding push rod and the covering push rod, and compared with the existing clamping device, the used parts are fewer and do not need the space for assembling a spring, so that the diameter of the formed clamping device can be reduced to 5mm, the clamping device can be miniaturized, and the invention can be stretched into a small wound formed by a human body for operation when being applied to an instrument for operation, can improve the wound healing effect of a patient after the operation, has a simpler structure, is low in cost and has lower unit price.
Drawings
FIG. 1 is a perspective view of a preferred embodiment of the present invention;
FIG. 2 is an exploded view of the preferred embodiment of the present invention;
FIG. 3 is an exploded view of the engagement drive assembly in accordance with the preferred embodiment of the present invention;
FIG. 4 is a top view of the preferred embodiment of the present invention;
FIG. 5 is a bottom view of the preferred embodiment of the present invention;
FIG. 6 is a schematic diagram of a later stage of the preferred embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating the operation of pushing the staple pusher according to the preferred embodiment of the present invention;
FIG. 8 is a schematic diagram of the operation of the present invention to clamp the nozzle portion.
Description of the symbols:
10 outer tube 11 outer tube fixing long hole
20 pincers mouth is gone up nail subassembly 21 pincers mouth pull rod
211 jaw pull rod long hole 212 jaw pull rod fixing hole
22 pincer nozzle 221 nozzle clamping part
222 gripper bar 23 nail groove
231 track 232 stop
233 nail pusher positioning hole 234 stopper
24 nail clamping 25 nail pusher
251 positioning spring 252 pushing spring
30 nail pushing rod 31 pushing hole
32 nail pulling sheet 33 nail pushing rod rear long hole
34 nail pushing rod hole 35 nail pushing rod front long hole
40 advancing ram assembly 41 advancing ram
411 into the push rod hole 412 into the push rod slot
413 hook piece 414 notch
415 barb 416 spring hook hole
42 pincer mouth clamp 421 clamping groove
50 link up drive assembly 51 sliding sleeve pipe
511 insert 512 fixing bolt hole
513 imbedding push rod positioning pin long hole 514 feeding rod positioning pin long hole
515 bevel 516 spring dowel hole
52 fixed bolt 53 covers push rod sliding sleeve
531 into the push rod positioning pin hole 54 into the push rod positioning pin
55 material loading pole sliding sleeve 551 material loading pole locating pin hole
56 feeding rod positioning pin 57 fixing sleeve
571 latch hole 58 spring positioning pin
59 cover into spring A half tube shell
Detailed Description
So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings.
In the preferred embodiment of the present invention as shown in fig. 1 to 5, the present invention provides a clamping device of a blood vessel clamping device, which comprises an outer tube 10, a jaw nail feeding assembly 20 penetrating into the outer tube 10, a nail feeding rod 30 penetrating into the outer tube 10, a push rod covering assembly 40 penetrating into the outer tube 10, and a connecting driving assembly 50 connected to the rear end of the outer tube 10, wherein:
the outer tube 10 is a circular long tube body extending in the front-rear direction, an outer tube fixing long hole 11 penetrates through a rear end portion of the outer tube 10 in the radial direction of the outer tube 10, and the outer tube fixing long hole 11 is a long hole extending in the front-rear direction.
As shown in fig. 2 and 3, the forceps nozzle nailing assembly 20 is fixedly provided with a forceps nozzle pull rod 21 in the outer tube 10, the forceps nozzle pull rod 21 is a long plate extending in the front-back direction, the rear end of the forceps nozzle pull rod 21 passes through the rear end of the outer tube 10, a forceps nozzle pull rod long hole 211 is formed in the rear end of the forceps nozzle pull rod 21, a forceps nozzle pull rod fixing hole 212 is formed in the forceps nozzle pull rod 21 corresponding to the position of the outer tube fixing long hole 11, a forceps nozzle 22 is connected to the front end of the forceps nozzle pull rod 21, the front end of the forceps nozzle 22 passes through the front end of the outer tube 10, a clamping nozzle portion 221 is formed in the front end of the forceps nozzle 22, two clamping nozzle ribs 222 are formed on the left and right sides of the bottom surface of the clamping nozzle portion 221, a nail groove 23 is fixedly provided on the top surface of the forceps nozzle pull rod 21, the nail groove 23 is a long groove extending in the front-back direction, a rail 231 extending in the nail groove 23 is formed, and the front end of the rail 231 faces the rear end of the clamping nozzle portion 231, a stopper 232 is formed on the top side of the front end of the rail 231, and a plurality of nail pusher positioning holes 233 are formed in the bottom surface of the nail groove 23 in a front-rear equally spaced arrangement.
More than two nails 24 are successively arranged in the track 231 from front to back, a nail pusher 25 is slidably arranged in the track 231, a positioning elastic sheet 251 and a pushing elastic sheet 252 are respectively arranged at the back end of the bottom and the back side of the top of the nail pusher 25, the free end of the positioning elastic sheet 251 is clamped and positioned in one nail pusher positioning hole 233 of the nail pusher positioning holes 233, the free end of the pushing elastic sheet 252 faces upwards and extends backwards out of the nail groove 23, a stop block 234 is formed by upward protruding at the front side of the top of the nail pusher 25, the width of the stop block 234 is narrower than that of the stop part 232, so that the stop part 232 can stop the stop block 234 to prevent the nail pusher 25 from moving forwards out of the track 231, and the front end of the nail pusher 25 is used for pushing the rearmost nail 24.
The upper nail pushing rod 30 is a long strip-shaped piece extending along the front-back direction, the upper nail pushing rod 30 is inserted into the outer tube 10 and attached to the top surface of the nail groove 23, a plurality of pushing holes 31 are arranged at equal intervals in the front half of the upper nail pushing rod 30, the free end of the pushing spring 252 of the nail pusher 25 is located in one of the pushing holes 31, a nail pulling sheet 32 is arranged at the front end of the upper nail pushing rod 30, the rear end of the upper nail pushing rod 30 passes through the rear end of the outer tube 10 backwards, an upper nail pushing rod rear long hole 33 and an upper nail pushing rod hole 34 are respectively inserted in the front-back position of the rear end of the upper nail pushing rod 30, the upper nail pushing rod rear long hole 33 is a long hole extending along the front-back direction, the upper nail pushing rod rear long hole 33 is overlapped with the outer tube jaw pulling rod long hole 211 up and down, corresponding to the position of the fixing long hole 11, an upper nail pushing rod 35 is inserted in front of the upper nail pushing rod 30, the upper nail pushing rod front long hole 35 is positioned in front of the upper nail pushing rod rear long hole 33, and the jaw pull rod fixing hole 212 is positioned below the front end part of the upper nail pushing rod front long hole 35.
The covered push rod assembly 40 is provided with a covered push rod 41 in the outer tube 10, the covered push rod 41 is a long strip-shaped sheet body extending along the front-back direction and clings to the bottom surface of the forceps mouth pull rod 21, the rear end of the covered push rod 41 passes through the rear end of the outer tube 10 backwards, the position of the upper nail push rod rear long hole 33 is matched, a covered push rod hole 411 is arranged at the rear end part of the covered push rod 41, a covered push rod long hole 412 is arranged at the covered push rod 41 corresponding to the position of the outer tube fixing long hole 11, the covered push rod 41 is arranged with a covered push rod long hole 412, the forceps mouth pull rod fixing hole 212 is arranged above the front end part of the covered push rod long hole 412, a hook piece part 413 extends backwards at the rear end of the covered push rod 41, a notch 414 is formed inwards beside the side of the hook piece part 413, the front-back position of the upper nail push rod hole 34 is arranged in the range of the notch 414, the rear end of the upper push rod 30 bends towards the, so that the upper nail pushing rod hole 34 is located in the inner side of the notch 414, a barb 415 is formed at the rear end of the hook piece 413 adjacent to the rear side of the notch 414, the height of the barb 415 is narrower than the depth of the notch 414, and a spring hook hole 416 is formed through the barb 415.
A jaw clamp 42 is combined with the front end of the advancing push rod 41, the jaw clamp 42 is a long bar-shaped block extending along the front-back direction, a clamping groove 421 opened in the front is formed at the top of the jaw clamp 42, and the front end of the clamping groove 421 is sleeved on the rear end of the two jaw ribs 222.
The linking driving assembly 50 is provided with a sliding sleeve 51, the sliding sleeve 51 is a circular tube extending in the front-back direction and includes two half-tube shells a fastened together up and down, and in accordance with the shape of the outer tube fixing slot 11, two insertion blocks 511 are respectively formed on two opposite sides of the inner peripheral surface of the front end portion of the outer tube 10, and the insertion blocks 511 are inserted into the outer tube fixing slot 11 for positioning, so that the front end portion of the sliding sleeve 51 is fixed to the rear end portion of the outer tube 10 in a sleeved manner, a fixing bolt hole 512 is formed through the insertion block 511 on the sliding sleeve 51, a fixing bolt 52 is inserted into the fixing bolt hole 512, the fixing bolt 52 is inserted through the front end portion of the upper nail pushing rod front slot 35 and the front end portion of the covering pushing rod slot 412, the middle of the fixing bolt 52 is inserted into the forceps mouth pulling rod fixing hole 212 of the forceps mouth pulling rod 21, and the forceps mouth pulling rod 21 is fixed in the outer tube 10.
Matching the positions of the upper nail pushing rod rear long hole 33, the forceps mouth pull rod long hole 211 and the covering push rod hole 411, a covering push rod positioning pin long hole 513 penetrates through the sliding sleeve pipe 51 along the radial direction, the covering push rod positioning pin long hole 513 is a long hole extending along the front-rear direction, matching the positions of the upper nail pushing rod hole 34 and the notch 414, a feeding rod positioning pin long hole 514 penetrates through the sliding sleeve pipe 51 along the radial direction, the feeding rod positioning pin long hole 514 is a long hole extending along the front-rear direction, and an inclined surface 515 is formed at the front end of the feeding rod positioning pin long hole 514.
A covering push rod sliding sleeve 53 is sleeved at the position where the sliding sleeve pipe 51 is provided with the covering push rod positioning pin long hole 513, the covering push rod sliding sleeve 53 axially penetrates through a covering push rod positioning pin hole 531, a covering push rod positioning pin 54 is inserted and fixed in the covering push rod positioning pin hole 531, the covering push rod positioning pin 54 penetrates through the upper nail push rod rear long hole 33 and the forceps mouth pull rod long hole 211, the covering push rod positioning pin 54 is inserted in the covering push rod hole 411 of the covering push rod 41, and the covering push rod 41 can be driven to advance through the covering push rod positioning pin 54 when the covering push rod sliding sleeve 53 advances.
As shown in fig. 2 to 5, a feeding rod sliding sleeve 55 is sleeved on the sliding sleeve pipe 51 at a position where the feeding rod positioning pin long hole 514 is provided, a feeding rod positioning pin hole 551 axially penetrates through the feeding rod sliding sleeve 55, a feeding rod positioning pin 56 is inserted and fixed in the feeding rod positioning pin hole 551, the feeding rod positioning pin 56 penetrates through the notch 414, and the feeding rod positioning pin 56 is inserted and fixed in the upper nail pushing rod hole 34 at the rear end of the upper nail pushing rod 30. As shown in fig. 6, since the feeding rod positioning pin 56 is close to the inner side of the notch 414, when the advancing pushing rod 41 is driven by the advancing pushing rod sliding sleeve 53 to advance, the inverted hook 415 at the rear end of the advancing pushing rod 41 can hook the feeding rod positioning pin 56, so that the feeding rod pushing rod 30 and the advancing pushing rod 41 advance together, when the feeding rod positioning pin 56 advances to the inclined plane 515, it will move along the inclined plane 515 and disengage from the inverted hook 415, at this time, the feeding rod sliding sleeve 55 can be driven to move backward, and the feeding rod positioning pin 56 drives the feeding rod pushing rod 30 to move backward, so that the feeding rod pushing rod 30 moves forward and backward once. When the entry pushing rod 41 returns to the original position, the barb 415 returns to the position where it can hook the loading rod positioning pin 56 forward.
A spring positioning pin hole 516 is penetrated through the rear end of the sliding sleeve 51, the spring positioning pin hole 516 is penetrated through the rear ends of the two half shell cases a, a fixing sleeve 57 is sleeved on the rear ends of the two half shell cases a, a bolt hole 571 is penetrated through the fixing sleeve 57, a spring positioning pin 58 is penetrated through the bolt hole 571, the spring positioning pin 58 is inserted into the spring positioning pin hole 516, and a covering spring 59 is hooked between the spring hook hole 416 at the rear end of the covering push rod 41 and the spring positioning pin hole 516, so that the covering push rod positioning pin 54 abuts against the rear end of the covering push rod positioning pin long hole 513.
When the first preferred embodiment of the present invention is used, the driving mechanism such as the holding unit of the existing automatic clip applier is used to drive the advancing pushing rod sliding sleeve and the feeding rod sliding sleeve 55 to move, but the driving mechanism for driving the preferred embodiment is not limited to the existing holding unit, and any mechanism can drive the advancing pushing rod 41 and the feeding nail pushing rod 30 according to the operation of the preferred embodiment.
As shown in fig. 6, when the first preferred embodiment of the present invention is used, the advancing push rod sliding sleeve 53 is driven to advance, the advancing push rod sliding sleeve 53 drives the advancing push rod 41 to move forward by the advancing push rod positioning pin 54, the barb 415 at the rear end of the advancing push rod 41 hooks the feeding rod positioning pin 56 during the forward movement of the advancing push rod 41, so that the feeding rod push rod 30 and the advancing push rod 41 advance together, when the feeding rod positioning pin 56 advances to the inclined plane 515, the feeding rod positioning pin will move along the inclined plane 515 and disengage from the barb 415, at this time, the advancing push rod 41 still continues to advance, the advancing push rod 41 continues to advance while driving the feeding rod sliding sleeve 55 to move backward, so that the feeding rod sliding sleeve 55 drives the feeding rod push rod 30 to move backward by the feeding rod positioning pin 56. The upper staple pusher 30 moves back and forth once throughout the advancement of the advancement ram 41.
When the upper nail pushing rod 30 moves forward and backward once, as shown in fig. 7, the pushing hole 31 where the free end of the pushing elastic sheet 252 is located moves forward, the rear end edge of the pushing hole 31 abuts against the free end of the pushing elastic sheet 252, the nail pusher 25 is pushed forward together, so that the nail pusher 25 pushes the foremost nail 24 from the back forward into the mouth portion 221, and then the upper nail pushing rod 30 moves backward, so that the free end of the pushing elastic sheet 252 of the nail pusher 25 which has moved forward is located in the front pushing hole 31 of the pushing hole 31 which just pushes the nail pusher 25 forward. In the process of advancing the advancing push rod 41, as shown in fig. 8, when the foremost nail 24 is fed into the jaw portion 221, the advancing push rod 41 continuously pushes the jaw clamp 42 forward, so that the jaw portion 221 clamps the nail 24 in a manner that the clamping groove 421 of the jaw clamp 42 tightly presses the two jaw ribs 222.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A clip applier device for a blood vessel clip applier, comprising:
an outer tube which is a round long tube body extending along the front-back direction;
a nail feeding assembly of a clamp mouth, which is arranged in the outer tube in a penetrating way and is fixedly provided with a clamp mouth pull rod in the outer tube, the clamp mouth pull rod is a long sheet body extending along the front-back direction, the front end of the clamp mouth is penetrated out of the front end of the outer tube, the front end of the clamp mouth is provided with a clamp mouth part, two clamp mouth ribs are formed at the left side and the right side of the bottom surface of the clamp mouth part, the top surface of the clamp mouth pull rod is fixedly provided with a nail groove, a track extending along the front-back direction is formed in the nail groove, the front end of the track is right opposite to the rear end of the clamp mouth part, the bottom surface of the nail groove is provided with a plurality of nail pusher positioning holes in a front-back equal interval arrangement way, more than two clamps are arranged in the track from front to back in a connecting way, a nail pusher is arranged in the track in a sliding way, the bottom and the top of the nail pusher are respectively provided with a positioning elastic sheet and a propelling elastic sheet, the free end of the positioning elastic sheet is clamped against one of the nail, the free end of the pushing elastic sheet faces upwards and extends out of the nail groove backwards, and the front end of the nail pusher is used for pushing the rearmost clamping nail;
the upper nail push rod is arranged in the outer pipe in a penetrating way and attached to the top surface of the nail groove, a plurality of pushing holes are formed in the upper nail push rod in a front-back equal interval arrangement mode, and the free end of each pushing elastic sheet is positioned in one of the pushing holes;
the covered push rod assembly is provided with a covered push rod, the covered push rod penetrates through the outer pipe and is attached to the bottom surface of the clamp mouth pull rod, the front end of the covered push rod is provided with a clamp mouth clamp, a clamping groove with an opening in the front is formed in the clamp mouth clamp, and the front end of the clamping groove is sleeved at the rear ends of the two clamp mouth ribs; and
the rear ends of the upper nail push rod and the upper nail push rod respectively penetrate out of the rear end of the outer tube backwards, an upper nail push rod rear long hole and an upper nail push rod hole are respectively arranged at the front and rear positions of the rear end part of the upper nail push rod in a penetrating manner, the position of the upper nail push rod rear long hole is matched, an upper nail push rod covering hole is arranged at the rear end part of the upper nail push rod in a penetrating manner, a hook piece part extends backwards from the rear end of the upper nail push rod, a notch is formed by inwards recessing the side of the hook piece part, a barb is formed at the rear end of the hook piece part adjacent to the rear side of the notch, the height of the barb is narrower than the depth of the notch, and the front and rear positions of the upper nail push rod hole are located in the range of the notch;
the rear end of the outer pipe is combined with a sliding sleeve pipe, the sliding sleeve pipe is a pipe body extending along the front-rear direction, the front end part of the sliding sleeve pipe is sleeved and fixed at the rear end part of the outer pipe, the positions of the upper nail push rod rear long hole and the covering push rod hole are matched, the sliding sleeve pipe penetrates through a covering push rod positioning pin long hole, the positions of the upper nail push rod hole and the notch are matched, the sliding sleeve pipe penetrates through a feeding rod positioning pin long hole, and the front end of the feeding rod positioning pin long hole forms an inclined plane; a covered push rod sliding sleeve is sleeved at the position of the outer pipe, which is provided with the long hole of the covered push rod positioning pin, the covered push rod sliding sleeve penetrates through a covered push rod positioning pin hole, a covered push rod positioning pin is inserted and fixed in the covered push rod positioning pin hole, the covered push rod positioning pin penetrates through the rear long hole of the upper nail push rod, and the covered push rod positioning pin is inserted in the covered push rod hole; the material loading rod positioning pin hole is a long hole in the same direction as the tangential direction of the sliding sleeve pipe, a material loading rod positioning pin is inserted in the material loading rod positioning pin hole, the material loading rod positioning pin penetrates through the notch, and the material loading rod positioning pin is inserted in the nail loading push rod hole.
2. The clip applying device of claim 1, wherein a nail pulling plate is disposed at the front end of the upper nail pushing rod, a stop is formed at the top of the nail pushing rod and protrudes upward, the stop is located in front of the pushing spring plate, and a stop portion with a width narrower than that of the stop is formed at the top side of the front end of the rail and is engaged with the stop, so as to prevent the nail pushing rod from moving forward out of the rail.
3. The clip applier of claim 2, wherein a spring positioning pin hole is formed through a rear end of said slide sleeve, a spring positioning pin is inserted and fixed in said spring positioning pin hole, a spring hook hole is formed through said inverted hook, and an advancing spring is hooked between said spring hook hole and said spring positioning pin, so that said advancing push rod positioning pin abuts against a rear end of said advancing push rod positioning pin long hole.
4. The clip applying device of claim 3, wherein an outer tube fixing slot is formed through the rear end of the outer tube, and a jaw pull rod fixing hole is formed through the jaw pull rod at a position corresponding to the outer tube fixing slot; the upper nail push rod penetrates through a front long hole of the upper nail push rod corresponding to the position of the outer pipe fixing long hole, and the front long hole of the upper nail push rod is positioned in front of a rear long hole of the upper nail push rod; a covering push rod long hole is arranged in the covering push rod in a penetrating way corresponding to the position of the outer pipe fixing long hole; the shape of the outer tube fixing long hole is matched, two embedding blocks are respectively formed on two opposite sides of the inner peripheral surface of the outer tube, the embedding blocks are embedded into the outer tube fixing long hole for positioning, a fixing bolt hole penetrates through the position where the embedding blocks are arranged on the sliding sleeve, a fixing bolt penetrates through the fixing bolt hole, the fixing bolt penetrates through the upper nail push rod front long hole and the covering push rod long hole, the fixing bolt penetrates through the clamp mouth pull rod fixing hole, and the position of the clamp mouth pull rod is fixedly arranged in the outer tube.
5. The clip applying device of blood vessel clip applier according to claim 4, wherein said sliding sleeve comprises two half-tube shells which are fastened together, said spring positioning pin hole is inserted through the rear ends of said two half-tube shells, a fixing sleeve is sleeved on the rear ends of said two half-tube shells, a pin hole is inserted through said fixing sleeve, and both ends of said spring positioning pin are inserted into said pin hole fixed on said fixing sleeve.
6. The device of claim 5, wherein the rear end of the jaw pull rod extends rearward beyond the rear end of the outer tube, a jaw pull rod slot is formed in the rear end of the jaw pull rod, and the push rod positioning pin extends through the jaw pull rod slot.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106128192A TWI645831B (en) | 2017-08-18 | 2017-08-18 | Blood clip applier |
| TW106128192 | 2017-08-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109394292A CN109394292A (en) | 2019-03-01 |
| CN109394292B true CN109394292B (en) | 2021-06-15 |
Family
ID=65464322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810915634.8A Expired - Fee Related CN109394292B (en) | 2017-08-18 | 2018-08-13 | Clip applying device of blood vessel clip applying device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109394292B (en) |
| TW (1) | TWI645831B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111685844A (en) * | 2019-03-15 | 2020-09-22 | 台湾先进手术医疗器材股份有限公司 | Automatic unhooking blood vessel clamping device |
| WO2020186378A1 (en) * | 2019-03-15 | 2020-09-24 | 台湾先进手术医疗器材股份有限公司 | Automatically-detaching vascular clamp applicator |
| WO2021114170A1 (en) * | 2019-12-12 | 2021-06-17 | 台湾先进手术医疗器材股份有限公司 | Sliding-type uncovering grip device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7052504B2 (en) * | 2002-11-19 | 2006-05-30 | Teleflex Incorporated | Automated-feed surgical clip applier and related methods |
| CN103190939A (en) * | 2008-08-29 | 2013-07-10 | 柯惠Lp公司 | Endoscopic surgical clip applier with clip retention |
-
2017
- 2017-08-18 TW TW106128192A patent/TWI645831B/en active
-
2018
- 2018-08-13 CN CN201810915634.8A patent/CN109394292B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7052504B2 (en) * | 2002-11-19 | 2006-05-30 | Teleflex Incorporated | Automated-feed surgical clip applier and related methods |
| CN103190939A (en) * | 2008-08-29 | 2013-07-10 | 柯惠Lp公司 | Endoscopic surgical clip applier with clip retention |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109394292A (en) | 2019-03-01 |
| TWI645831B (en) | 2019-01-01 |
| TW201912116A (en) | 2019-04-01 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210615 |