WO2016173561A1 - 一种克氏针折弯装置 - Google Patents

一种克氏针折弯装置 Download PDF

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Publication number
WO2016173561A1
WO2016173561A1 PCT/CN2016/080849 CN2016080849W WO2016173561A1 WO 2016173561 A1 WO2016173561 A1 WO 2016173561A1 CN 2016080849 W CN2016080849 W CN 2016080849W WO 2016173561 A1 WO2016173561 A1 WO 2016173561A1
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WO
WIPO (PCT)
Prior art keywords
contact
kirschner wire
scraping
bending device
needle
Prior art date
Application number
PCT/CN2016/080849
Other languages
English (en)
French (fr)
Inventor
张卫星
王晓
肖艳
Original Assignee
郑州泽正技术服务有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201510214954.7A external-priority patent/CN108143478B/zh
Priority claimed from CN201510248436.7A external-priority patent/CN106137370A/zh
Application filed by 郑州泽正技术服务有限公司 filed Critical 郑州泽正技术服务有限公司
Priority to KR1020177029523A priority Critical patent/KR102045067B1/ko
Priority to CA2977851A priority patent/CA2977851A1/en
Priority to JP2017546238A priority patent/JP6558783B2/ja
Priority to EP16785989.1A priority patent/EP3289991A4/en
Publication of WO2016173561A1 publication Critical patent/WO2016173561A1/zh
Priority to US15/682,211 priority patent/US20170340373A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8861—Apparatus for manipulating flexible wires or straps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8863—Apparatus for shaping or cutting osteosynthesis equipment by medical personnel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/22—Pliers provided with auxiliary tool elements, e.g. cutting edges, nail extractors

Definitions

  • the invention relates to a forming and cutting method and a shaping cutter for a surgical component, in particular to a bending and bending scraper of a orthopedic Kirschner wire.
  • Kirschner wire is commonly used as a Kirschner wire for the fixation of broken bone.
  • the K-wire is about 20 cm, and the diameter is between 0.5 and 4 mm. It is used to fix short-fracture fractures such as short fractures or avulsion fractures, and is often used in the fixation of temporary fracture blocks during orthopedic surgery.
  • the Kirschner wire can be cut according to the size of the docking bone, and then the Kirschner wire is inserted into the drilled bone for fixation, and the bent K-wire is exposed outside the bone to prevent the needle remaining on the bone surface. The tail pierces the skin or does not enter the bone surface and cannot be removed in the future.
  • the needle holder or the clamp head is often used to complete the bending work, which is often time consuming and laborious.
  • the handle of the CN87112315U patent must be rotated 180 degrees to bend the Kirschner wire.
  • the side plane is always in contact with the Kirschner wire, making the entire bender too long and very inconvenient to use. Therefore, there is currently no bender that can fold the K-wire once to the desired angle, and even less dare to use it.
  • the bender continues to cut the Kirschner wire.
  • the previous patent applied by the company is limited by the fixed groove to the Kirschner wire. During the bending and scraping process, the K-wire is easy to escape; when the fixing groove is used as the rotating shaft, the volume of the fixed groove is small. It is difficult to continue to provide additional clamping members on the fixing groove.
  • the invention solves the technical problem of continuously applying a clamping force to a Kirschner wire during the bending or scraping of a K-wire.
  • a K-wire needle bending device comprises a positioning groove for fixing a K-wire, and a side of the positioning groove is provided with a contact for applying a bending force to a steel pin fixed by the positioning groove.
  • the positioning groove is a clamping piece of the needle-nosed pliers and the needle-nosed pliers head, and one of the two clamping pieces of the jaw is a forming core block, and the positioning groove is laterally fixed to the positioning groove.
  • the steel needle applies a bending force contact
  • the head of the needle-nosed pliers serves as a rotating shaft
  • the contact that applies a bending force to the Kirschner wire rotates around the rotating shaft, and the contact rotates in the direction of the forming core to hold the two clamping
  • the K-wire held by the sheet is bent around the forming pellet.
  • one of the two clamping pieces of the jaw is a forming core block 6, and the other clamping piece of the jaw is provided with a limiting groove 5, the limiting groove 5 and the forming core piece 6
  • the Kirschner wire is prevented from coming out during the scraping process.
  • the scraping blade 4 for scraping the K-wire of the contact 3 forms a scraping slit with the forming pellet 6, and the contact 3 bends the K-wire and then scrapes The blade 4 continues to rotate along the scraping slit to cut the clamped K-wire.
  • the head of the needle-nosed pliers serves as a rotating shaft, and the outer sleeve applies a bending force to the Kirschner wire.
  • the head 3 rotates around the rotating shaft, and the head of the needle-nosed pliers, that is, the rotating shaft, is formed into a rotating surface, and the rotating surface is sleeved with a sleeve 302, and the rotating member fixes the contact 3.
  • the rotating surface forms a conical profile, and the tapered contour is sleeved with the sleeve 302 matched thereto, so that the jaw of the needle-nosed pliers can be opened to accommodate the Kirschner wire.
  • Tube 302 secures contact 3.
  • the rotating surface forms a conical contour, and the tapered outer sleeve is sleeved with the sleeve 302 matched thereto, so that the jaw of the needle nose pliers can be opened to accommodate the Kirschner wire, and one of the two clamping pieces of the finger jaw is
  • the rotating surface forms a tapered profile, and the clamping profile forming the tapered contour is provided with a slot for receiving the other clamping piece so that the jaw of the needle nose pliers head can be opened to accommodate the K-wire.
  • the slot 62 forming the tapered profile clamping piece is two shaft holes 64 at the rotating shaft portion, and the other clamping piece is a shaft hole 65 at the rotating shaft portion, and the rotating shaft 66 passes through the two shaft holes 64 and one shaft hole. 65.
  • the sleeve 302 is provided with a limit ring 3021.
  • the limit ring 3021 prevents the sleeve 302 from coming out of the tapered profile holder 1.
  • the sleeve 302 is provided with a through groove 3029 in the circumferential direction.
  • the tapered contour clamping piece and the corresponding groove 3029 correspond to the limiting post 3028.
  • the limiting post 3028 prevents the sleeve 302 from the tapered contour clamping member 1 Get out on the top.
  • the sleeve 302 is provided with a through groove 3029 in a circumferential direction, and the tapered contour clamping piece and the corresponding groove 3029 correspond to a position limiting slider 3027, and the limiting slider 3027 prevents the sleeve 302 from the tapered contour clamping member. 1 on the out.
  • the sleeve 302 is provided with a pulling handle 3022, and the pulling handle 3022 provides a bending force and a scraping force for the contact 3 and the scraping blade 4.
  • the side of the needle-nosed pliers 10 is provided with a fixed handle 3023 that cooperates with the triggering handle 3022.
  • the pulling handle 3022 and the fixed handle 3023 cooperate as a pair of hand-held handles.
  • the pulling handle 3022 is a ratchet wrench
  • the shape of the portion of the sleeve 302 and the ratchet wrench is a nut shape matched with the ratchet wrench.
  • a K-wire needle bending device includes a positioning groove, and a contact is provided above the positioning groove to apply a bending force to the steel needle, and the contact applies a force to the steel needle to be a lateral force in a side direction of the positioning groove.
  • the contact applies a lateral force in the lateral direction of the positioning groove to the steel needle, and applies a lateral force to the steel needle in a linear direction in which the contact forms an angle with the central axis of the positioning groove.
  • a bending force is formed between the contact and the corresponding side of the positioning notch to bend the steel needle.
  • the upper side of the positioning slot is configured to bend the steel needle to a desired angle limiting pad, and the contact and the limiting pad form a scraping slit to cut the bent steel needle.
  • a guide rail pair is disposed between the contact and the positioning groove.
  • the positioning slot is disposed on the frame, and the hydraulic cylinder is fixed on the frame, and the piston head of the hydraulic cylinder fixes the contact.
  • the contact is bent by a cam to be bent and scraped.
  • the positioning groove is disposed on one end surface of the clamp head in the jaw, and the bending contact is disposed on the side of the other end of the clamp head, and the two clamp heads are closed to bend the steel needle.
  • the steel needle is bent to the required angle limit pad, and the contact and the limit pad form a scraping slit, and the bent steel needle is scraped off.
  • the positioning groove is an active groove for clamping the steel needle, or a limiting groove matched with the diameter of the steel needle.
  • the movable groove of the clamping steel needle is another jaw.
  • the use of a clamp head is often performed by first clamping the steel needle and then bending it in a clamped state, which is time consuming and laborious; the present invention not only provides a one-time bending of the orthopedic steel needle.
  • the device is suitable for the case where the steel needle needs to be scraped off; and a device which can only bend the steel needle is provided, and since the force for bending the steel needle is much smaller than the scraping force, the material requirement is not High, low production cost, can be applied to the case of orthopedic steel needles only need to bend.
  • the clamp head is used, and the Kirschner wire is often clamped first, and then the other clamp is used to bend it in the clamped state, which is time-consuming and laborious.
  • the present invention firstly clamps the Kirschner wire with a clamp head, which is consistent with Usually, the clamping habit is then used to bend the cutting mechanism by the dial rotating around the rotating shaft, and the K-wire is bent around the forming core to form the desired hook-shaped elbow. If the length of the K-wire is correct after bending, then Remove the bending device. If the length of the K-wire is long after bending, continue to rotate to scrape the K-wire.
  • the K-wire is always clamped; the retaining member is provided with a limit groove on one side for easy folding.
  • the rod is removed; the ratchet wrench is set, and the bending and scraping process is labor-saving.
  • FIG. 1 is a schematic view showing the opening structure of a holding member of the present invention.
  • FIG. 2 is a schematic view showing the structure of the scraping slit formed by the closing of the clamping member, the cutting edge and the side of the forming pellet of the present invention.
  • Figure 3 is a schematic view of the clamping member of Figure 1 holding a K-wire.
  • FIG. 4 is a cross-sectional view showing the tapered sleeve of the conical sleeve and the conical sleeve fixed limit ring of the present invention.
  • Figure 4-1 Schematic diagram of the slider anti-off structure.
  • FIG. 4-2 Schematic diagram of the anti-offlet structure of the slider.
  • Figure 4-3 Schematic diagram of the anti-off structure of the limit column.
  • Figure 5 is a schematic view of the structure of a needle-nosed pliers
  • Figure 6 is a schematic view showing the structure of the sleeve or tapered sleeve fixed pulling handle of the present invention.
  • Fig. 7 is a schematic view showing the K-wire bending process of the present invention.
  • Figure 8 is a schematic view of the explosion structure of the needle-nosed pliers
  • Figure 9 is a schematic view showing the structure of the bendable device of the present invention.
  • Figure 10 is a schematic view showing the structure of the bending force provided only by the hydraulic cylinder of the bendable device
  • Figure 11 is a schematic view showing the structure of the bending force provided by only the bendable device cam
  • Figure 12 is a schematic view showing the structure of the bending force provided only by the jaws of the bendable device
  • Figure 13 is a schematic structural view of a bending and scraping device of the present invention.
  • Figure 14 is a schematic view showing the structure of the bending force of the hydraulic cylinder of the bending and scraping device
  • Figure 15 is a schematic view showing the bending force of the bending and scraping device cam
  • Figure 16 is a schematic view showing the structure of the bending force of the bending and scraping device jaws
  • Figure 17 is a schematic view showing the structure of the steel pin which is protruded from the side of the positioning groove by the screw.
  • a K-wire needle bending and scraping device as shown in FIG. 1 , FIG. 2 and FIG. 3 , includes a clamping member 1 for clamping a K-wire, and the clamping member 1 includes two opening and closing parts for clamping the K-wire.
  • the two opening and closing members of the clamping member 1 serve as a rotating shaft, which may be a cylindrical body or a cone, so that the contact 3 provided with a bending force applied to the K-wire can be rotated around the clamping member 1.
  • the contact 3 rotates around the rotating shaft, the contact 3 presses the K-wire to bend around the forming core 6, and after the K-wire is bent, if the length of the K-wire is pre-cut is suitable for the length after the bending, then The bending device is removed; the length can be long after the K-wire is bent, and the cutting edge 4 for scraping the K-wire and the forming core 6 side of the end of the clamping member 1 on the contact 3
  • the square 61 forms a scraping slit as shown in Fig. 2.
  • the scraping cutting edge 4 continues to rotate along the scraping slit, and the Kirschner wire is scraped during the rotation until the scraping cutting edge 4 is in contact with the side 61 of the forming pellet 6 (the distance may be short, The Kirschner wire is disconnected, and the clamped K-wire is scraped off.
  • the clamping member 1 comprises two clamping pieces for clamping a K-wire, and at one end of the two clamping pieces, one of the clamping pieces is provided with a limiting groove. 5.
  • the limit groove 5 prevents the Kirschner wire from coming out during the scraping process.
  • the limiting slot 5 is clamped on one side because the bent Kirschner wire 80 abuts against two or three sides of the forming pellet 6, as claimed in the patent claim 2015102149547.
  • the form factor 6 is laterally designed to have a draft angle, which facilitates the detachment of the shaped pellet 6 from the bent Kirschner wire 80.
  • the K-wire needle bending device, the ends of the two clamping pieces, the other clamping piece is provided with a forming core block 6, and the contact 3 applies a bending force to the Kirschner wire to surround the K-wire
  • the forming pellet 6 is a cylinder
  • the scraping edge 4 for scraping the Kirschner wire on the contact 3 forms a scraping slit on the side of the forming pellet 6, and forms a scraping with the scraping blade 4.
  • the side of the formed pellet 6 of the slit may be the intersection 61 of the two sides of the formed pellet 6, or may be an arcuate surface concentric with the rotation path of the scraping blade 4, such as the side circle of the shaped pellet 6 in the figure.
  • the shape of the shaped pellet 6 corresponds to the curved inner curved surface or inner curve of the Kirschner wire, which corresponds to the inner contour shape of the hook.
  • the two opening and closing members of the holding member 1 are opened, the K-wire 80 is inside the opening, and then the two opening and closing members of the holding member 1 are closed, as shown in Fig. 3, the K-wire 80 is The limiting groove 5 and the forming core block 6 are clamped on the side, and the contact 3 is abutted
  • the K-wire 80 is bent against the K-wire, the contact 3 is pressed, the K-wire 80 is bent to the desired bending shape, and the scraping edge 4 of the contact 3 and the side of the forming core 6 are bent.
  • the intersection line 61 forms a scraping slit, and continues to rotate the contact 3, the scraping cutting edge 4 of the contact 3 scrapes the Kirschner wire 80, and then the two opening and closing members are opened, and the forming pellet 6 is bent and scraped.
  • the Kirschner wire 80 is detached.
  • the outer sides of the two clamping pieces form a conical profile, and the tapered profile can withstand greater torque when the diameters of the end portions are the same, so that the diameter of the end portion is It may be small;
  • the tapered profile jacket is sleeved 302, and the sleeve 302 is connected to the fixed contact 3.
  • the inner contour of the sleeve 302 is contoured to the outer side of the two clamping pieces.
  • the inner contour of the sleeve 302 is a matching circular tube.
  • the outer contour of the tube 302 can be a tapered profile or a cylindrical profile.
  • the rotating surface forms a conical contour
  • the tapered contour is sleeved with the sleeve 302 matched thereto, so that the jaw of the head of the needle-nosed pliers can be opened to accommodate the Kirschner wire and the finger jaw.
  • One of the two clamping pieces forms a tapered contour for the rotating surface, and the clamping piece forming the tapered contour is provided with a slot hole 62 which accommodates the other clamping piece 63 so that the jaw of the tip of the needle-nosed pliers Can be opened to accommodate the Kirschner wire.
  • the slot 62 forming the tapered profile clamping piece is two shaft holes 64 at the rotating shaft portion, and the other clamping piece is a shaft hole 65 at the rotating shaft portion, and the rotating shaft 66 passes through the two shaft holes 64 and one shaft hole. 65.
  • the Knoop-needle bending and scraping device is provided with a limiter ring 3021.
  • the limit ring 3021 and the tapered surface together prevent the sleeve 302 from the tapered profile.
  • the clamp member 1 is detached.
  • the outer portion of the clamping member 1 may be provided with an annular boss or an annular groove, and the inner surface of the sleeve 302 is matched with an annular groove or an annular boss to prevent the sleeve 302 from coming off the clamping member 1.
  • the sleeve 302 is provided with a through groove 3029 in a circumferential direction.
  • the tapered contour clamping piece and the corresponding portion of the through groove fix the limit post 3028, and the limit post 3028 prevents the sleeve 302 from the tapered profile clamp.
  • the holder 1 is detached.
  • the sleeve 302 can also be provided with a through groove 3029 in the circumferential direction to form a conical contour clamping piece and a corresponding position fixing slot slider 3027 of the through groove, and the limit slider 3027 can prevent the sleeve. 302 is detached from the tapered profile holder 1.
  • the Kirschner wire bending and scraping device, the clamping member 1 for holding the K-wire is a needle-nosed pliers
  • FIG. 4 shows the shape of the needle-nose pliers, but the needle-nosed pliers are mutually
  • One of the two hinged parts, along the ends of the common needle-nosed hinge, is provided with a rotating body with the outer contour of the mouth of the part, leaving a groove or space for the movement of the other hinge part, so that the needle-nosed pliers head
  • the two clamping pieces of the jaws are two clamping pieces for clamping the K-wire of the clamping member 1, and the limiting groove 5 at the end of the two clamping pieces of the jaws and the forming core 6 clamp the K-wire.
  • the grip handle 10 of the needle nose pliers provides a clamping force.
  • the Kirschner wire bending and scraping device As shown in FIG. 6, the Kirschner wire bending and scraping device, the sleeve 302 is provided with a pulling handle 3022, and the pulling handle 3022 provides a bending and scraping force for the contact 3 and its scraping edge 4.
  • the gripping handle 10 of the needle-nosed pliers provides a clamping force and secures the tip.
  • the pliers and the handle 3022 provide a bending and scraping force. In this case, it is generally suitable for a K-wire having a diameter of 2 mm or less.
  • the Kirschner wire bending and scraping device as shown in FIG. 7 is provided with a fixed handle 3023 which is matched with the pulling handle 3022 on the side of the needle nose pliers 10.
  • the pulling handle 3022 and the fixed handle 3023 are matched as a pair of hands. handle. Since the pulling handle 3022 and the fixed handle 3023 are matched as a pair of hand grips, the gripping handle 10 of the needle nose pliers is substantially unaffected by the bending and scraping force provided by the pulling handle 3022. At this time, generally suitable for a diameter of 2 mm to 4 mm. K-wire.
  • the Kirschner wire bending and scraping device, the pulling handle 3022 is a ratchet wrench, and the shape of the portion of the sleeve 302 and the ratchet wrench is a nut shape matched with the ratchet wrench. Since the pulling handle 3022 is a ratchet wrench, it is more convenient to use.
  • a K-wire needle bending method includes the following steps:
  • Kirschner wire bending and scraping method of the present invention reference may be made to the embodiment of the Kirschner wire bending and scraping device.
  • a steel needle bending device as shown in FIG. 9 and FIG. 10, includes a positioning groove 101 for positioning a steel needle, and a contact 103 for applying a bending force to the steel needle is disposed above the positioning groove 1, and the contact 103 is provided a scraping cutting edge 104 for bending a steel needle; one side of the positioning groove 101 is provided with a steel needle bent to a bending pad 105 requiring an angle, and the right side of the bending pad 105 is lower than the movement to the upper side of the steel needle
  • the scraper cutting edge 104 on the head 103 has a distance of at least one steel needle diameter, and the upper surface of the bending pad 105 and the scraping cutting edge 104 that moves to the upper side maintain a distance of at least one steel needle diameter.
  • a bending force is formed between the contact 103 and the corresponding side of the positioning groove 1, that is, the contact 103 and the right side of the bending pad 105 form a bending force to bend the steel needle.
  • the steel needle can be bent at different angles as the point of the supporting steel pin changes and the angle of the bending pad changes.
  • a guide rail 1010 is disposed between the contact 103 and the positioning slot 101, so that the movement of the contact is straighter, the positioning slot 1 is disposed on the frame 10502, the hydraulic cylinder 108 is fixed on the frame 10502, and the piston head 10801 of the hydraulic cylinder 108 is fixed.
  • Contact 103 is disposed between the contact 103 and the positioning slot 101, so that the movement of the contact is straighter, the positioning slot 1 is disposed on the frame 10502, the hydraulic cylinder 108 is fixed on the frame 10502, and the piston head 10801 of the hydraulic cylinder 108 is fixed.
  • the steel needle When the invention is used, the steel needle is first positioned, and the steel needle positioning finger clamps the steel needle in the positioning groove matched with the diameter of the steel needle or in the movable groove as shown in FIG. 17, so that the steel needle can resist the bending force.
  • the contact 103 applying the bending force applies a bending force to the steel needle along a linear direction forming an angle with the central axial direction of the positioning groove 101, since the right side of the bending pad 105 is touched
  • the scraping cutting edge on the head is low, so when the scraping cutting edge moves to the protruding steel needle, the steel needle is bent, and the steel needle is bent and padded on the limiting pad, due to the height and movement of the left side of the limiting pad
  • the upper scraping edge 104 maintains at least one steel needle diameter, so the scraping blade can only continue to bend the steel needle and cannot scrape it. Since the force of bending the steel needle is much smaller than the scraping force, the device has low material requirements and low manufacturing cost, and
  • the contact 103 is pushed by the cam 109 for bending.
  • the positioning groove 101 is disposed at a tip end surface of one of the jaws 1010 in the jaw 1010, and the bending contact 103 is disposed at the side of the end of the other jaw 10102, and the two jaws are closed to the steel.
  • the needle is bent, and the bending force is the force in the direction of the circular arc applied to the steel needle when the two clamp heads are closed.
  • a device capable of bending and bending a steel needle as shown in FIGS. 13 to 16, different from the above-described device capable of bending only a steel needle, the right side of the bending pad 105 is lower than the movement to
  • the scraping cutting edge 104 on the contact 103 above the steel needle has a distance of at least one steel needle diameter, and the left side of the bending pad 105 is connected to the limiting pad 102, and the upper surface of the limiting pad 102 and the scraping blade that moves to the upper side Contact, form a scraping slit, and cut the bent steel needle.
  • the steel needle With the change of the supporting steel needle point and the change of the angle of the bending pad and the limiting pad, the steel needle can be bent into different angles and scraped and cut. .
  • the use of the present invention to bend a steel needle includes the following steps:
  • the steel needle positioning finger clamps the steel needle in the positioning groove matched with the diameter of the steel needle or in the movable groove as shown in FIG. 17 so that the steel needle can resist the bending force and the scraping
  • the cutting force exposes one end to be bent, and the lateral force of the side of the positioning groove is applied to the steel pin by the contact 103 to bend the steel needle, and the bent steel needle pad is placed on the limiting pad 105, the contact
  • the doctor blade 104 on 103 continues to apply a scraping force to cut the steel needle.
  • the contact to which the bending force is applied applies a bending force to the steel needle in a linear direction forming an angle with the central axis of the positioning groove, and the cutting force is a bending force in a straight line direction.
  • the steel needle is positioned at one of the two jaw ends 10101, and the bending force in step 2 is the side of the end of the other jaw 10102, which is applied to the steel needle when closed.
  • the force in the direction of the circular arc, the direction in which the scraping force continues to be applied in step 4 is the continuation of the force in the direction of the circular arc in step 2.
  • the positioning groove 101 is a movable groove for clamping the steel needle, that is, one side wall of the groove is moved and clamped, and one side wall of the groove in FIG. 17 protrudes from the end surface 10111 of the screw bolt rod to clamp the steel needle to prevent the steel needle from being folded. Move or pull out of the limit slot when bending and cutting.
  • the movable groove for clamping the steel needle can also be another jaw, that is, the two side walls of the movable groove are disposed on one clamp head, and the other clamp head
  • the bending contact is provided, the two clamping heads form a jaw, which can be folded to bend or scrape the steel needle; another jaw is provided to clamp the two side walls of the movable groove, so that the two side walls are tightened. For bending and scraping.
  • the limit groove matched with the diameter of the steel needle.
  • the limit groove restricts the steel needle from coming out of the limit groove.
  • the rest are A limit groove that matches the diameter of the steel needle.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Wire Processing (AREA)
  • Mechanical Engineering (AREA)
  • Surgical Instruments (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

一种克氏针折弯装置，其包括定位槽，该定位槽用于固定克氏针(80)，定位槽侧方设有向定位槽固定的钢针(80)施加折弯力的触头(3，103)。相对于现有技术中采用钳头，往往是先钳住钢针(80)，然后在钳住状态下再用力将其折弯，费时费力；本申请不但提供了一种一次性将骨科钢针(80)折弯刮断的装置，其适用于需要将钢针(80)刮断的案例；还提供了一种仅可以将钢针(80)折弯的装置，由于使钢针(80)折弯的力远小于刮断力，因此其对材料要求不高，制作成本低，可适用于骨科钢针(80)只需折弯的案例中。

Description

一种克氏针折弯装置 技术领域
本发明涉及一种外科手术部件的成型截断方法和成型截断器，尤其涉及一种骨科克氏针的折弯及折弯刮断器。
背景技术
在骨科手术中常用克氏针作为断骨对接固定的克氏针，一般克氏针在二十公分左右，直径在0.5～4毫米之间有不同的几种规格。用于固定短小骨折或撕脱骨折等应力不大的骨折固定，也常被用在骨科手术中临时骨折块的固定中。在手术中可根据对接骨骼的大小，对克氏针进行剪裁，而后将克氏针插入钻空的骨骼中进行固定，并将折弯克氏针露出骨骼外，以防止留在骨表面的针尾刺出皮肤或没入骨面而无法在日后取出。目前常应用持针器或钳头来完成折弯工作，往往比较费时费力，公开号为CN87212315U专利中的手柄必须旋转180度才能够将克氏针折弯，在折弯过程中，压针块的侧平面始终与克氏针接触，使得整个折弯器长度太长，使用起来非常不方便，所以，目前没有能够将克氏针一次折为所需角度的折弯器，更不敢想使用折弯器继续进行对克氏针截断。本公司申请的上一个专利，由于是固定槽对克氏针进行限位，在折弯刮断过程中，克氏针容易脱出；当固定槽作为旋转轴时，固定槽两侧体积很小，很难继续在固定槽上设置附加夹持件。
发明内容
本发明解决克氏针折弯或刮断过程中，对克氏针持续施加夹持力的技术问题。
一种克氏针折弯装置，包括定位槽，该定位槽用于固定克氏针，定位槽侧方设有向定位槽固定的钢针施加折弯力的触头。
所述定位槽为尖嘴钳及尖嘴钳头部的钳口两个夹持片，钳口两个夹持片之一为成形芯块，所述定位槽侧方设有向定位槽固定的钢针施加折弯力的触头，尖嘴钳的头部作为旋转轴，外套向克氏针施加折弯力的触头围绕旋转轴转动，触头向成形芯块方向旋转将两个夹持片夹持的克氏针绕成形芯块折弯。
所述的克氏针折弯刮断装置，所述钳口两个夹持片之一为成形芯块6，钳口另一个夹持片上设限位槽5，限位槽5与成形芯块6配合夹持克氏针时防止刮切过程中克氏针脱出。
所述的克氏针折弯装置，所述触头3上用于刮切克氏针的刮切刃4与成形芯块6形成刮切口，触头3将克氏针折弯后，刮切刃4沿刮切口继续旋转将夹持的克氏针刮切断。
所述的克氏针折弯装置，所述尖嘴钳的头部作为旋转轴，外套向克氏针施加折弯力的触 头3围绕旋转轴转动，为尖嘴钳的头部即旋转轴制成回转面，回转面外套设套管302，转动件固定触头3。
所述的克氏针折弯装置，所述回转面形成锥形轮廓，锥形轮廓外套接与其配合的套管302，使得尖嘴钳的头部的钳口能够张开容纳克氏针，套管302固定触头3。
回转面形成锥形轮廓，锥形轮廓外，套接与其配合的套管302，使得尖嘴钳的头部的钳口能够张开容纳克氏针，指钳口两个夹持片之一为回转面形成锥形轮廓，形成锥形轮廓的夹持片设槽孔，该槽孔容纳另一夹持片，使得尖嘴钳头部的钳口能够张开容纳克氏针。
所述形成锥形轮廓夹持片的槽孔62在转轴部位是两个轴孔64，另一夹持片在转轴部位是一个轴孔65，转轴66穿过两个轴孔64和一个轴孔65。
所述的克氏针折弯装置，所述套管302设置限位档环3021，在刮切时，限位档环3021防止套管302从锥形轮廓夹持件1上脱出。
所述套管302沿圆周方向设置通槽3029，所述形成锥形轮廓夹持片与通槽3029对应部位固定限位柱3028，限位柱3028防止套管302从锥形轮廓夹持件1上脱出。
所述套管302沿圆周方向设置通槽3029，所述形成锥形轮廓夹持片与通槽3029对应部位固定限位滑块3027，限滑块3027防止套管302从锥形轮廓夹持件1上脱出。
所述的克氏针折弯装置，所述套管302设置扳动手柄3022，扳动手柄3022为触头3及其刮切刃4提供折弯力和刮断力。
所述的克氏针折弯装置，所述尖嘴钳10的侧方设置与扳动手柄3022配合的固定手柄3023，扳动手柄3022与固定手柄3023配合为一对手握的手柄。
所述的克氏针折弯刮断装置，所述扳动手柄3022是棘轮扳手，所述套管302与棘轮扳手配合的部位的外形为与棘轮扳手配合的螺母外形。
一种克氏针折弯装置，包括定位槽，定位槽上方设有向钢针施加折弯力的触头，所述触头向钢针施加力为定位槽侧面方向的侧向力。
所述触头向钢针施加定位槽侧面方向的侧向力，为触头沿着与定位槽的中心轴形成夹角的直线方向对钢针施加侧向力。
所述触头与定位槽口的相应侧之间形成折弯力，将钢针折弯。
所述定位槽口上方一侧，设将钢针折弯到所需角度限位垫板，所述触头与限位垫板形成刮切口，将折弯的钢针刮切断。所述触头与定位槽之间设导轨副。
所述定位槽设在机架上，机架上固定液压缸，液压缸的活塞头固定触头。
所述触头由凸轮推动进行折弯并刮切。
所述定位槽设在钳口中的一个钳头端头端面，折弯触头设置在另一个钳头端头侧方，两个钳头合拢将钢针折弯。定位槽口上方一侧，设将钢针折弯到所需角度限位垫板，所述触头与限位垫板形成刮切口，将折弯的钢针刮切断。所述定位槽为夹紧钢针的活动槽，或者为与钢针直径配合的限位槽。所述夹紧钢针的活动槽为另一个钳口。
现有技术中采用钳头，往往是先钳住钢针，然后在钳住状态下再用力将其折弯，费时费力；本发明不但提供了一种一次性将骨科钢针折弯刮断的装置，其适用于需要将钢针刮断的案例；还提供了一种将仅可以将钢针折弯的装置，由于使钢针折弯的力远小于刮断力，因此其对材料要求不高，制作成本低，可适用于骨科钢针只需折弯的案例中。
现有技术中采用钳头，往往是先钳住克氏针，然后在钳住状态下再用另一个钳子将其折弯，费时费力，本发明首先采用钳头将克氏针夹紧，符合通常夹持习惯，然后采用折弯刮切机构由绕转轴转动的拨块拨动克氏针绕成型芯块弯曲形成所需的钩状弯头，如果克氏针折弯之后长度合适，那么就取下折弯装置，如果克氏针折弯之后长度长，继续旋转将克氏针刮断，刮切过程中，始终将克氏针夹紧；夹持件单侧设置限位槽，方便折弯刮断后脱出；设置棘轮扳手，折弯刮断过程省力。
附图说明
图1是本发明的夹持件张开结构示意图。
图2是本发明的夹持件闭合、刮切刃与成形芯块侧方形成一种刮切口结构示意图。
图3是图1夹持件夹持克氏针示意图。
图4是本发明的锥形套管套锥形转轴及锥形套管固定限位档环剖视结构示意图。
图4-1滑块防脱结构示意图。
图4-2滑块防脱爆炸结构示意图。
图4-3限位柱防脱结构示意图。
图5是尖嘴钳结构示意图。
图6是本发明的套管或者锥形套管固定扳动手柄结构示意图。
图7是本发明的克氏针折弯过程中示意图。
图8是尖嘴钳爆炸结构示意图。
图9是本发明仅可折弯装置的结构示意图；
图10是仅可折弯装置液压缸提供折弯力结构示意图；
图11是仅可折弯装置凸轮提供折弯力结构示意图；
图12是仅可折弯装置钳口提供折弯力结构示意图；
图13是本发明折弯和刮断装置的结构示意图；
图14是折弯和刮断装置液压缸提供折弯力结构示意图；
图15是折弯和刮断装置凸轮提供折弯力结构示意图；
图16是折弯和刮断装置钳口提供折弯力结构示意图；
图17是定位槽侧方伸出螺杆夹紧钢针结构示意图。
具体实施方式
一种克氏针折弯刮断装置，如图1图2图3，包括夹持克氏针的夹持件1，夹持件1包括两个开合的部件用于夹持克氏针，夹持件1的两个开合部件作为旋转轴，该旋转轴可以为圆柱体，也可以为圆锥体，能够使得设有向克氏针施加折弯力的触头3围绕夹持件1转动就行，也就是触头3围绕旋转轴转动，触头3压迫克氏针绕成形芯块6折弯，克氏针折弯后，如果克氏针预先剪断的长度合适折弯之后长度，那么就取下折弯装置；也可以克氏针折弯之后预留长度长，触头3上用于刮切克氏针的刮切刃4与夹持件1一侧端部的成形芯块6侧方61形成刮切口如图2，刮切刃4沿刮切口继续旋转，旋转的过程中刮切克氏针，直至刮切刃4与成形芯块6侧方61接触(也可以距离很短，使得克氏针断开就行)，将夹持的克氏针刮切断。
所述的克氏针折弯刮断装置，所述夹持件1包括夹持克氏针的两个夹持片，在两个夹持片的端部，其中一个夹持片上设限位槽5，限位槽5防止刮切过程中克氏针脱出。在一侧夹持片设限位槽5，是因为折弯后的克氏针80，抵靠成形芯块6的两个面或者三个面，如本专利要求优先权专利号为2015102149547的专利，将折弯的克氏针80刮断后，需要从成形芯块6脱出，成形芯块6夹持克氏针的面设槽，不利于克氏针从成形芯块6脱出，当然，可以在成形芯块6侧方设计脱模斜度，便于成形芯块6与折弯刮断的克氏针80脱离。
所述的克氏针折弯刮断装置，所述两个夹持片的端部，另一个夹持片上设成形芯块6，触头3向克氏针施加折弯力使克氏针围绕成形芯块6折弯后，成形芯块6为柱体，触头3上用于刮切克氏针的刮切刃4与成形芯块6侧方形成刮切口，与刮切刃4形成刮切口的成形芯块6的侧方，可以是成形芯块6两个侧面的交线61，也可以是与刮切刃4旋转路径同心的圆弧面，例如图中成形芯块6的侧圆弧面，刮切刃4沿刮切口继续旋转将折弯的克氏针刮切断。成形芯块6的形状与克氏针弯曲的内曲面或者内曲线对应，所述内曲面或者内曲线，相当于弯钩的内轮廓形状。
此时，如图1，夹持件1的两个开合部件张开，克氏针80至于开口内，然后，夹持件1的两个开合部件闭合，如图3克氏针80被限位槽5和成形芯块6对应侧面夹持，触头3抵 靠在克氏针上，旋转触头3，触头3压迫克氏针80弯曲，克氏针80弯曲至所需折弯形状，触头3的刮切刃4与成形芯块6两个侧面的交线61形成刮切口，继续旋转触头3，触头3的刮切刃4将克氏针80刮切断，，然后，两个开合部件张开，成形芯块6与折弯刮断的克氏针80脱离。
所述的克氏针折弯刮断装置，所述两个夹持片的外侧形成锥形轮廓，端部直径相同的情况下，锥形轮廓能够承受更大的扭矩，使得端部的直径尽可能小；锥形轮廓外套接套管302，套管302连接固定触头3。所述套管302的内轮廓与两个夹持片的外侧形成锥形轮廓匹配，当然，如果两个夹持片的外侧形成圆柱体，那么套管302的内轮廓是匹配的圆管，套管302的外轮廓可以是锥形轮廓，也可以是柱状轮廓。
如图5—图8所述回转面形成锥形轮廓，锥形轮廓外，套接与其配合的套管302，使得尖嘴钳的头部的钳口能够张开容纳克氏针，指钳口两个夹持片之一为回转面形成锥形轮廓，形成锥形轮廓的夹持片设槽孔62，该槽孔62容纳另一夹持片63，使得尖嘴钳的头部的钳口能够张开容纳克氏针。
所述形成锥形轮廓夹持片的槽孔62在转轴部位是两个轴孔64，另一夹持片在转轴部位是一个轴孔65，转轴66穿过两个轴孔64和一个轴孔65。
如图4所述的克氏针折弯刮断装置，所述套管302设置限位档环3021，在刮切时，限位档环3021与锥形面共同防止套管302从锥形轮廓夹持件1上脱出。当然夹持件1外部可以设环状凸台或者环状凹槽，套管302内表面匹配环状凹槽或者环状凸台，防止套管302从夹持件1上脱出。
如图4-3，套管302沿圆周方向设置通槽3029，所述形成锥形轮廓夹持片与通槽对应部位固定限位柱3028，限位柱3028防止套管302从锥形轮廓夹持件1上脱出。
如图4-1和图4-2，还可以套管302沿圆周方向设置通槽3029，形成锥形轮廓夹持片与通槽对应部位固定限位滑块3027，限滑块3027防止套管302从锥形轮廓夹持件1上脱出。
如图4图5，克氏针折弯刮断装置，所述夹持克氏针的夹持件1是尖嘴钳，图4显示尖嘴钳剖视的形状，但是该尖嘴钳是相互铰接的两个部件的一个，沿普通尖嘴钳铰轴两端，设置与该部件嘴部外轮廓的回转体，留出供另一个铰接部件活动的沟槽或者空间，使得尖嘴钳头部的钳口两个夹持片即为夹持件1夹持克氏针的两个夹持片，钳口两个夹持片端部的限位槽5与成形芯块6夹持克氏针，尖嘴钳的夹持手柄10提供夹持力。
如图6，克氏针折弯刮断装置，所述套管302设置扳动手柄3022，扳动手柄3022为触头3及其刮切刃4提供折弯刮断力。这样，尖嘴钳的夹持手柄10提供夹持力并固定尖嘴 钳，扳动手柄3022提供折弯刮断力，此时，一般适合直径2mm及以下的克氏针。
如图7所述的克氏针折弯刮断装置，所述尖嘴钳10的侧方设置与扳动手柄3022配合的固定手柄3023，扳动手柄3022与固定手柄3023配合为一对手握的手柄。由于扳动手柄3022与固定手柄3023配合为一对手握的手柄，尖嘴钳的夹持手柄10基本不受扳动手柄3022提供折弯刮断力的影响，此时，一般适合直径2mm-4mm的克氏针。
克氏针折弯刮断装置，扳动手柄3022是棘轮扳手，所述套管302与棘轮扳手配合的部位的外形为与棘轮扳手配合的螺母外形。由于扳动手柄3022是棘轮扳手，使用更方便。
一种克氏针折弯刮切方法，包括以下步骤：
⑴将克氏针夹紧在转轴端头，克氏针露出需折弯刮切的一端；
⑵在需折弯刮切的一端施加绕转轴旋转的折弯力，将克氏针折弯；
⑶折弯到需要角度后的克氏针被限制继续折弯，克氏针被转轴端头的芯块限制继续折弯；
⑷绕转轴旋转的刀刃继续施加刮切力将克氏针刮切断。
本发明对克氏针折弯刮切方法的解释，可以参考所述克氏针折弯刮断装置的实施方式。
一种钢针折弯装置，如图9、图10所示，包括定位钢针的定位槽101，定位槽1上方设有向钢针施加折弯力的触头103，该触头103上设用于折弯钢针的刮切刃104；定位槽101的一侧设置钢针折弯到需要角度的折弯垫板105，折弯垫板105右侧高度低于运动至钢针上方的触头103上的刮切刃104至少一个钢针直径的距离，折弯垫板105上表面与运动至上方的刮切刃104至少保持一个钢针直径的距离。触头103与定位槽1口的相应侧之间形成折弯力，即触头103与折弯垫板105右侧形成折弯力，将钢针折弯。随着支撑钢针点的变化和折弯垫板角度的变化，可以将钢针折为不同角度的弯曲。
触头103与定位槽101之间设导轨付1010，这样使触头的移动更直，定位槽1设在机架10502上，机架10502上固定液压缸108，液压缸108的活塞头10801固定触头103。
本发明使用时，首先将钢针定位，将钢针定位指将钢针夹紧在与钢针直径配合的定位槽中或如图17所示的活动槽中，使钢针能够抵抗折弯力，露出需折弯的一端，施加折弯力的触头103沿着与定位槽101的中心轴向形成夹角的直线方向对钢针施加折弯力，由于折弯垫板105右侧较触头上的刮切刃低，因此当刮切刃移动至突出的钢针时，将钢针折弯，钢针折弯后垫于限位垫板上，由于限位垫板左侧高度与运动至上方的刮切刃104至少保持一个钢针直径的距离，因此刮切刃只能将钢针继续折弯而不能将其刮断。由于使钢针折弯的力远小于刮断力，因此此装置对材料要求不高，制作成本低，可适用于骨科钢针只需折弯的案例中。
如图11所示，所述触头103由凸轮109推动进行折弯。
如图12所示，所述定位槽101设在钳口1010中的一个钳头10101端头端面，折弯触头103设置在另一个钳头10102端头侧方，两个钳头合拢将钢针折弯，折弯力为两个钳头合拢时对钢针施加的圆弧线方向的力。
一种可以将钢针折弯刮断的装置，如图13～16所示，与上述仅可以将钢针折弯的装置不同的是，所述折弯垫板105右侧高度低于运动至钢针上方的触头103上的刮切刃104至少一个钢针直径的距离，折弯垫板105左侧连接限位垫板102，限位垫板102上表面与运动至上方的刮切刃接触，形成刮切口，将折弯的钢针刮切断，随着支撑钢针点的变化和折弯垫板与限位垫板角度的变化，可以将钢针折为不同角度的弯曲并刮切断。使用本发明将钢针折弯刮切包括以下几个步骤：
⑴将钢针定位，钢针露出需折弯刮切的一端；
⑵在需折弯刮切的一端施加折弯力，将钢针折弯；
⑶折弯到需要角度后的钢针被限制继续折弯；
⑷由刮切刃继续施加刮切力将钢针刮切断。
具体为：首先将钢针定位(将钢针定位指将钢针夹紧在与钢针直径配合的定位槽中或如图17所示的活动槽中，使钢针能够抵抗折弯力和刮切力)，露出需折弯的一端，由触头103向钢针施加定位槽侧面方向的侧向力将钢针折弯，折弯后的钢针垫于限位垫板105上，触头103上的刮切刃104继续施加刮切力将钢针刮切断。
如图13、14及15所示，施加折弯力的触头沿着与定位槽的中心轴向形成夹角的直线方向对钢针施加折弯力，刮切力为直线方向的折弯力的延续。
如图16所示，将钢针定位在两个钳头中的一个钳头端头10101，步骤2中的折弯力为另一个钳头10102端头侧方，在合拢时对钢针施加的圆弧线方向的力，步骤4中继续施加的刮切力的方向是步骤2中圆弧线方向的力的延续。
所述定位槽101为夹紧钢针的活动槽，即槽的一个侧壁移动夹紧，图17中槽的一个侧壁伸出旋拧螺栓杆的端面10111夹紧钢针，防止钢针折弯刮切时移动或脱出限位槽。
在两个钳头合拢折弯钢针的实施例中，夹紧钢针的活动槽还可为另一个钳口，即活动槽的两个侧壁设在一个钳头上，另一个钳头上设折弯触头，两个钳头形成一个钳口，可以合拢将钢针折弯或刮断；另设一个钳口可以夹持活动槽的两个侧壁，使两侧壁加紧钢针，以便折弯和刮断。
或者为与钢针直径配合的限位槽，当钢针被施加折弯力和刮切力时，限位槽限制钢针脱出限位槽，说明书附图中除图17之外，其余都是与钢针直径配合的限位槽。

Claims (25)

  1. 一种克氏针折弯装置，其特征在于：包括定位槽，该定位槽用于固定克氏针，定位槽侧方设有向定位槽固定的钢针施加折弯力的触头。
  2. 如权利要求1所述的克氏针折弯装置，其特征在于：所述定位槽为尖嘴钳及尖嘴钳头部的钳口两个夹持片，钳口两个夹持片之一为成形芯块(6)，所述定位槽侧方设有向定位槽固定的钢针施加折弯力的触头，尖嘴钳的头部作为旋转轴，外套向克氏针施加折弯力的触头(3)围绕旋转轴转动，触头(3)向成形芯块(6)方向旋转将两个夹持片夹持的克氏针绕成形芯块(6)折弯。
  3. 如权利要求1或者2所述的克氏针折弯装置，其特征在于：所述钳口两个夹持片之一为成形芯块(6)，钳口另一个夹持片上设限位槽(5)，限位槽(5)与成形芯块(6)配合夹持克氏针时防止刮切过程中克氏针脱出。
  4. 如权利要求3所述的克氏针折弯装置，其特征在于：所述触头(3)上用于刮切克氏针的刮切刃(4)与成形芯块(6)形成刮切口，触头(3)将克氏针折弯后，刮切刃(4)沿刮切口继续旋转将夹持的克氏针刮切断。
  5. 如权利要求4所述的克氏针折弯装置，其特征在于：所述尖嘴钳的头部作为旋转轴，外套向克氏针施加折弯力的触头(3)围绕旋转轴转动，为尖嘴钳的头部即旋转轴制成回转面，回转面外套设套管(302)，转动件固定触头(3)。
  6. 如权利要求5所述的克氏针折弯装置，其特征在于：所述回转面形成锥形轮廓，锥形轮廓外，套接与其配合的套管(302)，使得尖嘴钳的头部的钳口能够张开容纳克氏针，套管(302)固定触头(3)。
  7. 如权利要求6所述的克氏针折弯装置，其特征在于：所述回转面形成锥形轮廓，锥形轮廓外，套接与其配合的套管(302)，使得尖嘴钳的头部的钳口能够张开容纳克氏针，指钳口两个夹持片之一为回转面形成锥形轮廓，形成锥形轮廓的夹持片设槽孔(62)，该槽孔(62)容纳另一夹持片(63)，使得尖嘴钳的头部的钳口能够张开容纳克氏针。
  8. 如权利要求7所述的克氏针折弯装置，其特征在于：所述形成锥形轮廓夹持片的槽孔(62)在转轴部位是两个轴孔(64)，另一夹持片在转轴部位是一个轴孔(65)，转轴(66)穿过两个轴孔(64)和一个轴孔(65)。
  9. 如权利要求8所述的克氏针折弯装置，其特征在于：所述套管(302)设置限位档环(3021)，在刮切时，限位档环(3021)防止套管(302)从锥形轮廓夹持件(1)上脱出。
  10. 如权利要求8所述的克氏针折弯装置，其特征在于：所述套管(302)沿圆周方向设置通槽(3029)，所述形成锥形轮廓夹持片与通槽(3029)对应部位固定限位柱(3028)，限位 柱(3028)防止套管(302)从锥形轮廓夹持件(1)上脱出。
  11. 如权利要求8所述的克氏针折弯装置，其特征在于：所述套管(302)沿圆周方向设置通槽(3029)，所述形成锥形轮廓夹持片与通槽(3029)对应部位固定限位滑块(3027)，限滑块(3027)防止套管(302)从锥形轮廓夹持件(1)上脱出。
  12. 如权利要求8所述的克氏针折弯装置，其特征在于：所述套管(302)设置扳动手柄(3022)，扳动手柄(3022)为触头(3)及其刮切刃(4)提供折弯力和刮断力。
  13. 如权利要求12所述的克氏针折弯刮断装置，其特征在于：所述尖嘴钳(10)的侧方设置与扳动手柄(3022)配合的固定手柄(3023)，扳动手柄(3022)与固定手柄(3023)配合为一对手握的手柄。
  14. 如权利要求13所述的克氏针折弯装置，其特征在于：所述扳动手柄(3022)是棘轮扳手，所述套管(302)与棘轮扳手配合的部位的外形为与棘轮扳手配合的螺母外形。
  15. 如权利要求1所述的克氏针折弯装置，其特征在于：所述定位槽(101)上方设有向钢针施加折弯力的触头(103)，所述触头(103)向钢针施加力为定位槽(101)侧面方向的侧向力。
  16. 如权利要求15所述的克氏针折弯装置，其特征在于：所述触头(103)向钢针施加定位槽(101)侧面方向的侧向力，为触头(103)沿着与定位槽(101)的中心轴形成夹角的直线方向对钢针施加侧向力。
  17. 如权利要求16所述的克氏针折弯装置，其特征在于：所述触头(103)与定位槽口的相应侧之间形成折弯力，将钢针折弯。
  18. 如权利要求17所述的克氏针折弯装置，其特征在于：所述定位槽口上方一侧，设将钢针折弯到所需角度限位垫板(102)，所述触头与限位垫板形成刮切口，将折弯的钢针刮切断。
  19. 如权利要求17所述的克氏针折弯装置，其特征在于：所述触头(103)与定位槽(101)之间设导轨副(1010)。
  20. 如权利要求19所述的克氏针折弯装置，其特征在于：所述定位槽(101)设在机架(10502)上，机架(10502)上固定液压缸(108)，液压缸(108)的活塞头(10801)固定触头(103)。
  21. 如权利要求19所述的克氏针折弯装置，其特征在于：所述触头(103)由凸轮(109)推动进行折弯并刮切。
  22. 如权利要求15所述的克氏针折弯装置，其特征在于：所述定位槽(101)设在钳口 (1010)中的一个钳头(10101)端头端面，折弯触头(103)设置在另一个钳头(10102)端头侧方，两个钳头合拢将钢针折弯。
  23. 如权利要求22所述的克氏针折弯装置，其特征在于：所述定位槽口上方一侧，设将钢针折弯到所需角度限位垫板(102)，所述触头(103)与限位垫板形成刮切口，将折弯的钢针刮切断。
  24. 如权利要求15所述的克氏针折弯装置，其特征在于：所述定位槽(101)为夹紧钢针的活动槽，或者为与钢针直径配合的限位槽。
  25. 如权利要求22或24所述的克氏针折弯装置，其特征在于：所述夹紧钢针的活动槽为另一个钳口。
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