CN112386307B - Orthopedic labor-saving clamping bone forceps - Google Patents
Orthopedic labor-saving clamping bone forceps Download PDFInfo
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- CN112386307B CN112386307B CN202011269655.0A CN202011269655A CN112386307B CN 112386307 B CN112386307 B CN 112386307B CN 202011269655 A CN202011269655 A CN 202011269655A CN 112386307 B CN112386307 B CN 112386307B
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- arm
- connecting rod
- clamping
- rotating
- assembly
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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
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
- A61B17/282—Jaws
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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
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
- A61B17/2833—Locking means
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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
- A61B17/56—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
- A61B17/8866—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices for gripping or pushing bones, e.g. approximators
Abstract
The invention discloses an orthopedic labor-saving bone forceps, which comprises a fixed arm, a rotating arm, a transmission assembly and a clamping arm, wherein the rotating arm is rotatably connected to one side of the fixed arm, the transmission assembly is arranged between the fixed arm and the rotating arm and respectively drives the clamping arm connected with the transmission assembly to move up and down, a protection assembly for preventing the clamping arm from having overlarge force is arranged at the head end of the clamping arm, a pneumatic assembly for inflating the protection assembly is arranged in the fixed arm and comprises a piston mechanism and a check mechanism, and a driving assembly for driving the rotating arm to rotate is arranged on the fixed arm. Through the mode, the labor-saving bone forceps for orthopedics department are adopted, the rotating arms are driven to rotate through the driving assembly, the clamping arms are driven to open and close along with the rotation of the rotating arms, manual action is not needed, the labor is saved conveniently, and the air cushion assembly is arranged to prevent the clamping arms from excessively damaging a patient.
Description
Technical Field
The invention relates to the field of medical treatment, in particular to a labor-saving bone clamping forceps for orthopedics.
Background
Orthopedics is the most common department in hospitals, mainly studies anatomy and diseases related to bones, and a bone clamping forceps is one of the bone forceps commonly used in an operating room of orthopedics, mainly plays roles of clamping bones, fixing, resetting and the like, and is convenient for various operations.
Nowadays, the installation of centre gripping rongeur structure on the existing market is dismantled complicacy, and the in-process that uses because the centre gripping needs manual operation harder, causes a great deal of inconvenience to medical personnel easily, and fixed mode is unstable moreover.
The prior art discloses a centre gripping pincers for orthopedics, including activity pincers, light and dead lever, the avris of activity pincers is provided with fixed pincers, and the inboard of fixed pincers is provided with the loose axle, the tip of loose axle is provided with the stand, and the inboard of stand runs through there is the pole of inserting, the tip of stand is provided with the screw, the light is installed in the top of fixed pincers, and the inboard of light is provided with the limiting plate, the inboard of limiting plate is provided with the slider, and the outer wall of slider is provided with the connecting block, the tip of connecting block is provided with the knee, and the bottom of knee is provided with the linkage plate, the middle part of linkage plate is provided with the spring, and one side of spring is provided with first flexible piece to the opposite side of spring is provided with the flexible piece of second. Compared with the prior products, the clamping bone forceps are convenient to mount and dismount, provided with the illuminating device, flexible in adjustment of the clamping structure, high in accuracy and stable in fixing, still labor is wasted in using, manual operation is needed, force is continuously applied, a mechanism for protecting a clamped bone is not provided, and the patient is easily hurt even if the clamping force is too large.
Therefore, it is necessary to design a clamping forceps which is labor-saving, has stable structure, can realize self-locking and can protect the clamped bone.
Disclosure of Invention
In order to solve the problems that the existing bone clamping forceps are labor-consuming to use, the self-locking fixing mechanism is unstable and the structure for protecting the clamped bone is lacked, the invention provides the labor-saving bone clamping forceps for orthopedics department, which is convenient to use, labor-saving and stable in self-locking fixing structure and can protect the clamped bone.
In order to achieve the purpose, the invention adopts the technical scheme that:
a labor-saving bone forceps for orthopedics department comprises a fixed arm, a rotating arm, a transmission assembly and a clamping arm, wherein the rotating arm is rotatably connected to one side of the fixed arm, the transmission assembly is arranged between the fixed arm and the rotating arm and respectively drives the clamping arm connected with the transmission assembly to move up and down, a protection assembly for preventing the clamping arm from being too large in force is arranged at the head end of the clamping arm, a pneumatic assembly for inflating the protection assembly is arranged inside the fixed arm and comprises a piston mechanism and a non-return mechanism, and a driving assembly for driving the rotating arm to rotate is arranged on the fixed arm;
a cavity is formed in the outer end of the fixed arm and penetrates through the outer end of the fixed arm;
the drive end of the piston mechanism is provided with a reciprocating screw rod mechanism for inflating and deflating, the reciprocating screw rod mechanism comprises a screw rod, a sliding sleeve and a conical gear set, the screw rod is provided with two thread grooves with opposite rotation directions, the sliding sleeve is in sliding connection with the screw rod, the conical gear set is connected with the outer end of the screw rod, the conical gear set comprises a first conical gear in rotating connection with the outer end of the screw rod and a second conical gear in matching connection with the first conical gear, a first rotating shaft penetrating through the cavity is arranged at the center of the second conical gear, the outer end of the rotating shaft is connected with a knob, and first connecting rods connected with the outer end of the piston rod are symmetrically arranged on the inner end face of the sliding sleeve and drive the piston rod to move;
one side of the reciprocating screw rod mechanism is provided with a shaper mechanism for adjusting the reciprocating sliding speed of the sliding sleeve, the shaper mechanism comprises a second rotating shaft in transmission connection with the tail end of the first rotating shaft through a belt, a rotating disc in rotation connection with the second rotating shaft, a second connecting rod and a third connecting rod, wherein one end of the second connecting rod is hinged with the third connecting rod, a supporting seat is arranged at the rear side of the turntable, a first through hole is arranged at the upper end of the supporting seat, the second rotating shaft penetrates through the first through hole, the bottom end of the supporting seat is fixed at the bottom end of the cavity, one end of the second connecting rod is connected with the outer side of the sliding sleeve, the other end of the second connecting rod is hinged with the third connecting rod, the other end of the third connecting rod is provided with a second through hole, the third connecting rod is rotatably connected with a first connecting column arranged at the bottom end of the supporting seat, a slotted hole which is completely penetrated is formed in the center of the third connecting rod, and the third connecting rod is in sliding connection with a second connecting column arranged on the outer end face of the turntable;
the head end of the clamping arm is of an arc structure, the protection assembly comprises an air cushion connected with the lower side of the arc structure and an arc clamping piece connected with the lower side of the air cushion, the arc clamping piece is positioned under the arc structure, a self-locking mechanism is arranged on the arc clamping piece, the self-locking mechanism comprises a base, a second sliding block, a hinged fourth connecting rod and a fifth connecting rod, the upper end of the base is provided with a second sliding groove, the second sliding block is in sliding fit with the second sliding groove, one end of the fourth connecting rod is hinged to the bottom end of the arc structure, the other end of the fourth connecting rod is hinged to one end of the fifth connecting rod, the other end of the fifth connecting rod is connected with the upper end of the second sliding block, the right end of the second sliding block is connected with a sixth connecting rod, the sixth connecting rod is of a columnar rigid structure, and one end of the sixth connecting rod is fixed inside the second sliding block and can adjust the length of the sixth connecting rod inside the second sliding block, therefore, the maximum distance that the fourth connecting rod and the fifth connecting rod can descend is limited, and the other end of the sixth connecting rod sequentially penetrates through the base and the second disc structure, so that the gear column can be prevented from rotating.
Furthermore, the pneumatic assembly is arranged in the cavity, the outer end face of the fixed arm is provided with a square valve which can be opened and closed, the piston mechanism comprises a sealing cylinder, a plurality of pistons and a piston rod, the sealing cylinder is matched with the fixed arm in the fixed arm, the pistons are arranged in the sealing cylinder, the piston rod drives the pistons to move, sealing pieces are arranged between the pistons, an air outlet is formed in the inner end of the sealing cylinder, and a non-return mechanism is arranged in the air outlet.
Further, non return mechanism is including being located inside the gas outlet and rather than complex stopper mouth, by the cladding at the stopper mouth center keep off the ball, the stopper mouth is the rubber structure, the stopper mouth both ends are provided with cavity groove respectively, two the center of cavity groove contact end is provided with the bar opening, it is located to keep off the ball bar opening central point puts the department, and can follow stopper mouth round trip movement.
Furthermore, a sealing cover is arranged at the outer end of the sealing barrel, a first air inlet is formed in the sealing cover, and the piston rod penetrates through the first air inlet and is connected with a reciprocating screw rod mechanism arranged at the outer end of the sealing barrel.
Furthermore, the fixed arm width is greater than the rotor arm width, fixed arm inside portion is located the rotor arm lower extreme, and with the rotor arm cooperation, fixed arm inside portion is provided with the screw hole, and is located under the rotor arm, drive assembly includes the screw rod and connects in the compression spring of screw rod bottom, the compression spring is located in the screw hole, just the compression spring bottom with the screw hole bottom is connected.
Further, the rotor arm head end is first disc structure, first disc structure inner is provided with the circular slot structure, be provided with on the circular slot structure border and be located the ring gear that the first gear cooperation in the circular slot structure is connected, first gear center is provided with the third through-hole, and is in with the setting the third spliced pole of circular slot structure bottom rotates to be connected, first disc structure center be provided with the fourth through-hole and with fourth through-hole complex third pivot, the third pivot is passed behind the first disc structure with set up the second disc structural connection of fixed arm head end, it is provided with the gear post that the center is provided with the fifth through-hole to rotate in the third pivot, the gear post with first gear cooperation.
Furthermore, the tail ends of the clamping arms are both L-shaped structures, and the two L-shaped structures are matched, the tail end of the clamping arm is respectively provided with a first rack and a second rack which are matched with the gear column, the first rack and the second rack are arranged on the upper side and the lower side of the gear column along the vertical direction, first sliding blocks are symmetrically arranged on the inner end surfaces of the two clamping arms, the tail end of the first sliding block is provided with a square fixed block, the outer diameter of the square fixed block is larger than that of the first sliding block, a first chute of a T-shaped structure which is connected with the first slide block in a sliding way is arranged on the inner end surface of the second disc structure, and the upper end and the lower end of the second disc structure are respectively provided with an L-shaped air pipe with a telescopic function, one end of the L-shaped air pipe is connected with a first air passage arranged in the fixed arm, and the other end of the L-shaped air pipe is connected with a second air passage arranged in the clamping arm.
Further, an air release port for air release and a second air inlet for air inlet are arranged on the air cushion, and the second air inlet is connected with the tail end of the second air passage.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the labor-saving bone forceps for orthopedics department, the inflation structure is arranged in the fixing arm, the air cushion assembly is arranged on the clamping arm, the force applied to the arc clamping piece by the clamping arm can be adjusted by adjusting the size of the air cushion according to the most appropriate force required by clamping a clamped bone, meanwhile, the self-locking mechanism is arranged beside the air cushion, the minimum distance which the clamping arm and the arc clamping piece can approach can be adjusted by adjusting the length of the connecting rod, and after the preset distance is reached, the self-locking mechanism prevents the clamping arm from continuously rotating, so that self-locking is realized, and the bone of a patient is prevented from being damaged by excessive force applied to the clamping arm.
2. The clamping arm is provided with a fixed arm and a rotating arm which can rotate around the fixed arm, the fixed arm can be fixed in the using process, the clamping arm is convenient to use, the rotating arm serves as a driving end and drives the clamping arm to move up and down through a planetary gear structure and a gear rack structure, and the rotating arm can obtain a larger stroke of the clamping arm under a smaller stroke, so that the clamping arm is labor-saving and convenient to adjust.
3. According to the invention, through the structural design of the gear and the rack, the traditional mode that the clamping end is opened and closed along with the opening and closing of the force application end can be changed into the mode that the action mode of the force application end is opposite to the action mode of the clamping end, the rotating arm and the fixed arm only need to be folded by hand at the beginning, the clamping end is opened to the maximum position, then the hand is loosened, the rotating arm drives the screw rod to move upwards through the compression spring arranged in the fixed arm, the rotating arm is further driven to rotate, the application of manpower is not needed, and the labor is saved.
4. According to the labor-saving bone clamping forceps for orthopedics department, the shaping machine mechanism is connected to the sliding sleeve driving the piston rod to move, the piston rod can be slowly fed in and quickly discharged, time consumption of unnecessary strokes is reduced, the inflation efficiency is improved, and meanwhile, the action of compressed gas is slowed down, so that the inflation degree of the air cushion can be adjusted.
Drawings
FIG. 1 is an axial schematic view of the present invention;
FIG. 2 is an enlarged schematic view of A of FIG. 1;
FIG. 3 is a schematic view of a portion of an isometric view of the present invention;
FIG. 4 is an enlarged view of B in FIG. 3;
FIG. 5 is an enlarged view of C in FIG. 4;
FIG. 6 is a schematic structural view of the transmission assembly of the present invention;
FIG. 7 is a schematic top view of the present invention;
FIG. 8 is a cross-sectional view taken along line D of FIG. 7;
FIG. 9 is an enlarged view of E in FIG. 8;
FIG. 10 is a schematic view of the check mechanism of the present invention;
FIG. 11 is a cross-sectional view taken along line F of FIG. 10;
FIG. 12 is a schematic upper structural view of the present invention;
FIG. 13 is a schematic view of the drive mechanism;
FIG. 14 is a cross-sectional view of a stationary arm head end construction;
the parts in the drawings are numbered as follows: 1. a fixed arm; 11. a first air passage; 2. a rotating arm; 3. a pneumatic assembly; 311. a knob; 312. a first rotating shaft; 313. a second bevel gear; 314. a first bevel gear; 321. a sliding sleeve; 322. a lead screw; 323. a first link; 331. a second link; 332. a third link; 333. a slot; 334. a turntable; 335. a second rotating shaft; 336. belt transmission; 341. a piston rod; 342. a piston; 343. sealing the sheet; 344. an air outlet; 345. plugging the opening; 346. a sealing cylinder; 347. blocking the ball; 4. a clamp arm; 41. a first rack; 42. a second rack; 43. a first slider; 44. an arc-shaped clamping piece; 44. a first chute; 45. an air tube; 5. a drive assembly; 51. a screw; 52. a compression spring; 6. a transmission assembly; 61. a ring gear; 62. a first gear; 63. a gear post; 64. a third rotating shaft; 7. a protection component; 71. an air cushion; 72. a fourth link; 73. a fifth link; 74. a second slider; 75. a second chute; 76. and a sixth link.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Example 1
As shown in fig. 1, the labor-saving bone forceps for orthopedics department comprises a fixed arm 1, a rotating arm 2, a transmission component 6 and a clamping arm 4, wherein the rotating arm 2 is rotatably connected to one side of the fixed arm 1, the rotating arm 2 can rotate around the fixed arm 1, the transmission component 6 is arranged between the fixed arm 1 and the rotating arm 2, the transmission component 6 is positioned at the central position of the head ends of the fixed arm 1 and the clamping arm 4, the transmission component 6 respectively drives the clamping arm 4 connected with the transmission component to move up and down, so as to adjust the opening distance of the clamping arm 4 and clamp bones, the head end of the clamping arm 4 is provided with an air cushion 71 component for preventing the clamping arm 4 from having overlarge force, the pneumatic component 3 for inflating the protective component 7 is arranged inside the fixed arm 1, the size of the protective component 7 can be adjusted through the pneumatic component 3, so as to protect and buffer the clamped bones, pneumatic component 3 includes piston mechanism and non return mechanism, through pneumatic component 3 can be realized to the compression of gas to piston mechanism, and then aerifys air cushion 71 subassembly, non return mechanism can prevent the gas suck-back when piston mechanism is the return motion, be provided with the drive on the fixed arm 1 the 2 pivoted drive assembly 5 of rotor arm, the accessible drive assembly 5 drives rotor arm 2 and rotates, need not dependent manual operation.
As shown in fig. 3 to 5, in this embodiment, a cavity is formed inside the outer end of the fixing arm 1 and penetrates through the outer end of the fixing arm 1, the pneumatic assembly 3 is disposed in the cavity and is firmly fixed, an openable square air valve is disposed on the outer end surface of the fixing arm 1, communication or sealing between the cavity and the outside can be achieved by opening and closing the square air valve, the piston mechanism includes a sealing cylinder 346 engaged with the inner portion of the fixing arm 1, a plurality of pistons 342 disposed inside the sealing cylinder 346, and a piston rod 341 driving the pistons 342 to move, the outer end of the sealing cylinder 346 is located in the cavity, and its cylinder body is in sealing engagement with the inner portion of the fixing arm 1, the pistons 342 can be driven by the piston rod 341 to reciprocate inside the sealing cylinder 346, a sealing plate 343 is disposed between the plurality of pistons 342, and a sealing cavity is formed in the sealing cylinder 346, the inner end of the sealing cylinder 346 is provided with an air outlet 344 which can be communicated with the air cushion 71 assembly, and a non-return mechanism is arranged in the air outlet 344 to prevent air in the air cushion 71 assembly from being sucked back when the piston 342 returns.
As shown in fig. 7 to 12, in this embodiment, the non-return mechanism includes a plug 345 located inside the air outlet 344 and engaged therewith, and a blocking ball 347 covered at the center of the plug 345, the plug 345 is of a rubber structure and facilitates the back-and-forth movement inside the air outlet 344, hollow grooves are respectively disposed at two ends of the plug 345, a strip-shaped opening is disposed at the center of the contact end of the two hollow grooves, the blocking ball 347 is located at the center of the strip-shaped opening and forms a gap at two sides to facilitate the gas circulation, and the blocking ball 347 can move back and forth along with the plug 345, when the piston compresses air, the plug 345 is pushed to move inward, the blocking ball 347 and the air outlet 344 are separated, the gas enters, and when the piston performs the return movement, the plug 345 is pushed to move outward to drive the blocking ball 347 to block the air outlet 344, thereby preventing the gas from flowing back.
In this embodiment, a sealing cover is arranged at the outer end of the sealing barrel, a first air inlet is arranged on the sealing cover, the piston rod 341 passes through the first air inlet and is connected with a reciprocating lead screw 322 mechanism arranged at the outer end of the sealing barrel 346, the piston rod 341 can be driven by the reciprocating lead screw 322 mechanism to move back and forth, the reciprocating lead screw 322 mechanism comprises a lead screw 322 provided with two thread grooves with opposite rotation directions, a sliding sleeve 321 connected with the lead screw 322 in a sliding manner, and a conical gear set connected with the outer end of the lead screw 322, the two thread grooves on the lead screw 322 are connected with curves at two ends of the lead screw 322, threads matched with the sliding sleeve 321 are arranged inside the sliding sleeve 321, when the sliding sleeve 321 slides to two ends of the lead screw 322, the sliding sleeve 321 can be reversed to continue to slide, the conical gear set can drive the lead screw 322 to rotate, the conical gear set comprises a first conical gear 314 rotationally connected with the outer end of the lead screw 322 and a first conical gear 314 in a matching connection with the first conical gear 314 The first bevel gear 314 is arranged along the screw rod 322, the first rotating shaft 312 penetrating through the cavity is arranged in the center of the second bevel gear 313, the outer end of the rotating shaft is connected with the knob 311, the knob 311 drives the first rotating shaft 312 fixed with the rotating shaft to rotate, the second bevel gear 313 is further driven to rotate, so that the screw rod 322 is driven to rotate, the first connecting rods 323 connected with the outer end of the piston rod 341 are symmetrically arranged on the inner end face of the sliding sleeve 321, and the piston rod 341 is driven to move.
In this embodiment, one side of the reciprocating screw 322 mechanism is provided with a shaper mechanism for adjusting the reciprocating sliding speed of the sliding sleeve 321, the shaper mechanism can realize slow in and fast out of the piston rod 341 and increase the inflation efficiency, the shaper mechanism includes a second rotating shaft 335 connected to the end of the first rotating shaft 312 through a belt transmission 336, a rotating disc 334 rotatably connected to the second rotating shaft 335, a second connecting rod 331 and a third connecting rod 332 with one hinged end, a supporting seat is provided at the rear side of the rotating disc 334, a first through hole is provided at the upper end of the supporting seat, the second rotating shaft 335 penetrates through the first through hole, the bottom end of the supporting seat is fixed at the bottom end of the cavity, one end of the second connecting rod 331 is connected to the outside of the sliding sleeve 321 to drive the sliding sleeve 321 to move, the other end of the second connecting rod 331 is hinged to the third connecting rod 332, and a second through hole is provided at the other end of the third connecting rod 332, the third connecting rod 332 is provided with a through slot 333 in the center and is slidably connected with a second connecting column arranged on the outer end surface of the rotating disc 334, the third connecting rod 332 which is slidably connected with the third connecting rod is driven to rotate relatively through the rotation of the rotating disc 334, and then the second connecting rod 331 which is hinged with the third connecting rod is driven to rotate relatively, so that the sliding sleeve 321 is driven to move back and forth along the screw rod 322.
As shown in fig. 13, in combination with fig. 1 and 6, in this embodiment, the bottom of the fixing arm 1 is provided with an anti-slip structure for facilitating handling, the bottom of the fixing arm 1 is further provided with a fixing thread seat through which the fixing arm 1 can be fixed on a support frame, the width of the fixing arm 1 is greater than the width of the rotating arm 2, the inner portion of the fixing arm 1 is located at the lower end of the rotating arm 2 and is engaged with the rotating arm 2, so that when the rotating arm 2 is pressed to a position flush with the fixing arm 1, the two are pressed together, the inner portion of the fixing arm 1 is provided with a threaded hole and is located right below the rotating arm 2, the driving assembly 5 comprises a threaded rod 51 and a compression spring 52 connected to the bottom end of the threaded rod 51, the compression spring 52 is located in the threaded hole, and the bottom end of the compression spring 52 is connected to the bottom end of the threaded hole, when the rotating arm 2 and the fixed arm 1 are pressed, the compression spring 52 is compressed, the screw rod 51 moves to the inner part of the threaded hole, when the rotating arm 2 is released, the compression spring 52 is restored, the screw rod 51 connected with the compression spring is driven to move upwards slowly, the rotating arm 2 above is jacked up, and then the rotating arm 2 is driven to rotate slowly.
As shown in fig. 6, in this embodiment, the head end of the rotating arm 2 is a first disk structure, a circular groove structure is disposed at the inner end of the first disk structure, a gear ring 61 cooperatively connected with a first gear 62 located in the circular groove structure is disposed on the edge of the circular groove structure, the rotating arm 2 drives the gear ring 61 to rotate, so as to further drive the first gear 62 cooperatively connected therewith to rotate, a third through hole is disposed at the center of the first gear 62, and is rotatably connected with a third connecting column disposed at the bottom end of the circular groove structure, so as to rotate around the third connecting column, a fourth through hole and a third rotating shaft 64 cooperatively connected with the fourth through hole are disposed at the center of the first disk structure, the third rotating shaft 64 penetrates through the first disk structure and is connected with a second disk structure disposed at the head end of the fixing arm 1, a gear column 63 centrally disposed with a fifth through hole is rotatably connected to the third rotating shaft 64, the gear column 63 is engaged with the first gear 62, and the first gear 62 can drive the gear column 63 engaged therewith to rotate around the third rotating shaft 64.
In this embodiment, the tail end of the clamping arm 4 is an L-shaped structure, and two L-shaped structures are matched, the tail end of the clamping arm 4 is provided with a first rack 41 and a second rack 42 matched with the gear column 63, and the first rack 41 and the second rack 42 are arranged on the upper and lower sides of the gear column 63 along the vertical direction, so that the gear column 63 can drive the clamping arm 4 to move up and down respectively, the inner end surfaces of the two clamping arms 4 are symmetrically provided with first sliding blocks 43, the tail end of the first sliding block 43 is provided with a square fixing block, the outer diameter of the square fixing block is larger than that of the first sliding block 43, the inner end surface of the second disk structure is provided with a first sliding groove 44 of a T-shaped structure slidably connected with the first sliding block 43, the square fixing block is connected to the bottom of the first sliding groove 44, so that the clamping arm 4 and the fixing arm 1 are relatively fixed, the air cushion 71 assembly can slide along a first sliding groove 44 formed in the fixing arm 1, an L-shaped air pipe 45 with a telescopic function is arranged at each of the upper end and the lower end of the second disc structure, one end of each L-shaped air pipe 45 is connected with a first air passage 11 formed in the fixing arm 1, the other end of each L-shaped air pipe is connected with a second air passage formed in the clamping arm 4, and the air cushion 71 assembly is connected with the pneumatic assembly 3.
As shown in fig. 1 to 2 in combination with fig. 6 and 12, in this embodiment, the head end of the clamping arm 4 is an arc-shaped structure, the protection assembly 7 includes an air cushion 71 connected to the lower side of the arc-shaped structure, and an arc-shaped clamping piece 44 connected to the lower side of the air cushion 71, the arc-shaped clamping piece 44 is located under the arc-shaped structure, a self-locking mechanism is disposed on the arc-shaped clamping piece 44, the self-locking mechanism includes a base having a second sliding slot 75 at an upper end thereof, and a second sliding block 74 slidably engaged with the second sliding slot 75, a fourth connecting rod 72 and a fifth connecting rod 73 hinged thereto, one end of the fourth connecting rod 72 is hinged to the bottom end of the arc-shaped structure, the other end of the fourth connecting rod 72 is hinged to one end of the fifth connecting rod 73, the other end of the fifth connecting rod 73 is connected to the upper end of the second sliding block 74, a sixth connecting rod 76 is connected to a right end of the second sliding block 74, the sixth connecting rod 76 is a columnar rigid structure, and one end of the sixth link 76 is fixed inside the second slider 74 and can adjust the length of the sixth link 76 inside, so as to limit the maximum distance that the fourth link 72 and the fifth link 73 can descend, the other end of the sixth link 76 sequentially passes through the base and the second disc structure, so as to prevent the gear column 63 from rotating, when the air cushion 71 is adjusted to a proper size, the length of the sixth link 76 inside the second slider 74 is adjusted, so as to adjust the length of the outer part structure, and when the arc-shaped clamping piece 44 and the arc-shaped structure reach a preset minimum distance, the sixth link 76 just moves to a position that can prevent the rotating arm 2 from rotating, so as to realize self-locking.
In this embodiment, the air cushion 71 is provided with a deflation port for deflation and a second air inlet for air intake, the second air inlet is connected with the end of the second air passage, and when the air cushion is not in use, the air cushion 71 can be deflated through the deflation port.
In this way, the size of knob regulation air cushion rotates before using, simultaneously according to the pressure value size of predetermineeing, adjust the length of sixth link, set up the auto-lock condition, pressfitting rotor arm and fixed arm when using, make the centre gripping arm open, loosen the rotor arm afterwards, reset and drive the rotor arm slowly upwards rotate at compression spring, and then drive the centre gripping arm and slowly be close to, when reaching mobilizable maximum distance, reach the auto-lock condition, the rotor arm stall, the skeleton is fixed by the most suitable power centre gripping.
The above description is only for the purpose of illustrating the technical solutions of the present invention and is not intended to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; all the equivalent structures or equivalent processes performed by using the contents of the specification and the drawings of the invention, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The labor-saving bone clamping forceps for orthopedics department is characterized by comprising a fixed arm (1), a rotating arm (2), a transmission assembly (6) and a clamping arm (4), wherein the rotating arm (2) is rotatably connected to one side of the fixed arm (1), the transmission assembly (6) is arranged between the fixed arm (1) and the rotating arm (2), the transmission assembly (6) respectively drives the clamping arm (4) connected with the transmission assembly to move up and down, a protection assembly (7) for preventing the clamping arm (4) from having overlarge force is arranged at the head end of the clamping arm (4), a pneumatic assembly (3) for inflating the protection assembly (7) is arranged inside the fixed arm (1), the pneumatic assembly (3) comprises a piston mechanism and a non-return mechanism, and a driving assembly (5) for driving the rotating arm (2) to rotate is arranged on the fixed arm (1);
a cavity is formed in the outer end of the fixed arm (1) and penetrates through the outer end of the fixed arm (1);
the driving end of the piston mechanism is provided with a reciprocating screw rod mechanism for inflating and deflating, the reciprocating screw rod mechanism comprises a screw rod (322) provided with two thread grooves with opposite rotation directions, a sliding sleeve (321) in sliding connection with the screw rod (322), and a conical gear set connected with the outer end of the screw rod (322), the conical gear set comprises a first conical gear (314) rotationally connected with the outer end of the screw rod (322) and a second conical gear (313) in matched connection with the first conical gear (314), a first rotating shaft (312) penetrating through the cavity is arranged in the center of the second conical gear (313), the outer end of the rotating shaft is connected with a knob (311), a first connecting rod (323) connected with the outer end of the piston rod (341) is symmetrically arranged on the inner end surface of the sliding sleeve (321), and the piston mechanism is driven to move;
the shaping and planing machine is characterized in that one side of the reciprocating screw rod mechanism is provided with a shaping and planing machine mechanism for adjusting the reciprocating sliding speed of the sliding sleeve (321), the shaping and planing machine mechanism comprises a second rotating shaft (335) connected with the tail end of the first rotating shaft (312) through a belt transmission (336), a rotating disc (334) rotatably connected with the second rotating shaft (335), a second connecting rod (331) with one hinged end and a third connecting rod (332), a supporting seat is arranged at the rear side of the rotating disc (334), a first through hole is formed in the upper end of the supporting seat, the second rotating shaft (335) penetrates through the first through hole, the bottom end of the supporting seat is fixed at the bottom end of the cavity, one end of the second connecting rod (331) is connected with the outer side of the sliding sleeve (321), the other end of the second connecting rod (331) is hinged with the third connecting rod (332), a second through hole is formed in the other end of the third connecting rod (332), and is rotatably connected with a first connecting column arranged at the bottom end of the supporting seat, a slotted hole (333) which completely penetrates through is formed in the center of the third connecting rod (332), and the third connecting rod is in sliding connection with a second connecting column arranged on the outer end face of the rotating disc (334);
the head end of the clamping arm (4) is of an arc-shaped structure, the protection assembly (7) comprises an air cushion (71) connected with the lower side of the arc-shaped structure and an arc-shaped clamping sheet (44) connected with the lower side of the air cushion (71), the arc-shaped clamping sheet (44) is positioned under the arc-shaped structure, a self-locking mechanism is arranged on the arc-shaped clamping sheet (44), the self-locking mechanism comprises a base, a second sliding block (74), a hinged fourth connecting rod (72) and a fifth connecting rod (73), wherein the upper end of the base is provided with a second sliding groove (75), the second sliding block (74) is in sliding fit with the second sliding groove (75), one end of the fourth connecting rod (72) is hinged to the bottom end of the arc-shaped structure, the other end of the fourth connecting rod is hinged to one end of the fifth connecting rod (73), the other end of the fifth connecting rod (73) is connected with the upper end of the second sliding block (74), and the right end of the second sliding block (74) is connected with a sixth connecting rod (76), the sixth connecting rod (76) is of a columnar rigid structure, one end of the sixth connecting rod (76) is fixed inside the second sliding block (74) and the length of the sixth connecting rod (76) inside the second sliding block can be adjusted, so that the maximum distance that the fourth connecting rod (72) and the fifth connecting rod (73) can descend is limited, and the other end of the sixth connecting rod (76) penetrates through the base and the second disc structure in sequence and can prevent the gear column (63) from rotating.
2. The labor-saving bone forceps for clamping in orthopedics department according to claim 1, characterized in that the pneumatic assembly (3) is arranged in the cavity, an openable square air valve is arranged on the outer end face of the fixing arm (1), the piston mechanism comprises a sealing cylinder (346) matched with the inner portion of the fixing arm (1), a plurality of pistons (342) arranged in the sealing cylinder (346), and a piston rod (341) driving the pistons (342) to move, sealing sheets (343) are arranged among the plurality of pistons (342), an air outlet (344) is arranged at the inner end of the sealing cylinder (346), and a check mechanism is arranged in the air outlet (344).
3. The labor-saving bone forceps for clamping in orthopedics department according to claim 2, characterized in that the non-return mechanism comprises a plug port (345) which is positioned inside the air outlet (344) and matched with the air outlet, and a blocking ball (347) which is coated at the center of the plug port (345), the plug port (345) is of a rubber structure, hollow grooves are respectively arranged at two ends of the plug port (345), a strip-shaped opening is arranged at the center of the contact ends of the two hollow grooves, and the blocking ball (347) is positioned at the center of the strip-shaped opening and can move back and forth along with the plug port (345).
4. The labor-saving bone forceps for orthopedics department according to claim 3, characterized in that the outer end of the sealing cylinder (346) is provided with a sealing cover, the sealing cover is provided with an air inlet, and the piston rod (341) passes through the air inlet and is connected with a reciprocating screw mechanism arranged at the outer end of the sealing cylinder (346).
5. The labor-saving bone forceps for orthopedics department is characterized in that the width of the fixing arm (1) is larger than that of the rotating arm (2), the inner side part of the fixing arm (1) is positioned at the lower end of the rotating arm (2) and is matched with the rotating arm (2), the inner side part of the fixing arm (1) is provided with a threaded hole and is positioned under the rotating arm (2), the driving assembly (5) comprises a screw rod (51) and a compression spring (52) connected to the bottom end of the screw rod (51), the compression spring (52) is positioned in the threaded hole, and the bottom end of the compression spring (52) is connected with the bottom end of the threaded hole.
6. The labor-saving bone forceps for orthopedics department, according to claim 5, characterized in that the head end of the rotating arm (2) is a first disc structure, the inner end of the first disc structure is provided with a circular groove structure, the edge of the circular groove structure is provided with a gear ring (61) which is matched and connected with a first gear (62) positioned in the circular groove structure, the center of the first gear (62) is provided with a third through hole and is rotationally connected with a third connecting column arranged at the bottom end of the circular groove structure, the center of the first disc structure is provided with a fourth through hole and a third rotating shaft (64) matched with the fourth through hole, the third rotating shaft (64) passes through the first disc structure and is connected with a second disc structure arranged at the head end of the fixing arm (1), the third rotating shaft (64) is rotationally connected with a gear column (63) with a fifth through hole at the center, the gear post (63) is engaged with the first gear (62).
7. The labor-saving bone forceps for orthopedics department, according to claim 6, characterized in that the tail end of the holding arm (4) is L-shaped, and two L-shaped structures are matched, the tail end of the holding arm (4) is respectively provided with a first rack (41) and a second rack (42) which are matched with the gear column (63), the first rack (41) and the second rack (42) are vertically arranged at the upper side and the lower side of the gear column (63), the inner end surfaces of the two holding arms (4) are symmetrically provided with first sliding blocks (43), the tail end of each first sliding block (43) is provided with a square fixing block, the outer diameter of the square fixing block is larger than that of the first sliding block (43), the inner end surface of the second disc structure is provided with a first chute (44) of a T-shaped structure which is slidably connected with the first sliding block (43), the upper end and the lower end of the second disc structure are respectively provided with an L-shaped air pipe (45) with a telescopic function, one end of the L-shaped air pipe (45) is connected with a first air passage (11) arranged in the fixing arm (1), and the other end of the L-shaped air pipe is connected with second air passages respectively arranged in the clamping arms (4).
8. The orthopedic labor-saving bone forceps for clamping according to claim 7, characterized in that the air cushion (71) is provided with a deflation port for deflation and a second air inlet port for air intake, and the second air inlet port is connected with the tail end of the second air passage.
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| CN208876679U (en) * | 2018-05-10 | 2019-05-21 | 孔凡荣 | A kind of Gynecological tumor operation forceps |
| CN110477987A (en) * | 2019-09-17 | 2019-11-22 | 魏文海 | A kind of general surgery department surgical hemostatic pincers |
| CN211633484U (en) * | 2019-10-08 | 2020-10-09 | 杨洋 | Special operation pincers of stomach and intestine tumour |
| CN110584800A (en) * | 2019-10-14 | 2019-12-20 | 南通大学附属医院 | Clinical multi-purpose clamping device of orthopedics |
| CN110934626B (en) * | 2019-12-12 | 2023-04-14 | 王晓爱 | Pneumatic larynx tissue forceps for ENT department |
| CN111388070B (en) * | 2020-04-07 | 2020-12-15 | 中南大学湘雅二医院 | Obstetric forceps with elastic function for obstetrics and gynecology department |
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