CN114010291A - External fixation clamp for fracture and system thereof - Google Patents
External fixation clamp for fracture and system thereof Download PDFInfo
- Publication number
- CN114010291A CN114010291A CN202111317056.6A CN202111317056A CN114010291A CN 114010291 A CN114010291 A CN 114010291A CN 202111317056 A CN202111317056 A CN 202111317056A CN 114010291 A CN114010291 A CN 114010291A
- Authority
- CN
- China
- Prior art keywords
- leg
- clamping
- external fixation
- fracture
- clamping leg
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 33
- 208000010392 Bone Fractures Diseases 0.000 claims description 152
- 238000003780 insertion Methods 0.000 claims description 21
- 230000037431 insertion Effects 0.000 claims description 21
- 230000008859 change Effects 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 206010017076 Fracture Diseases 0.000 description 127
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 6
- 206010052428 Wound Diseases 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000035876 healing Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 208000002847 Surgical Wound Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 208000006670 Multiple fractures Diseases 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000008468 bone growth Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Images
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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The embodiment of the invention provides a fracture external fixation clamp and a system thereof, relating to the technical field of medical instruments. The embodiment of the invention provides an external fracture fixation clamp which comprises a central inserting shaft, a locking member, a first clamping leg and a second clamping leg. First press from both sides leg and second press from both sides leg and all connect in the center and insert the axle, and be formed with the centre gripping space that is used for the centre gripping bone between first press from both sides leg and the second press from both sides leg, during the use, the first press from both sides leg of accessible and second press from both sides leg directly stretch into internal the realization fixed to the centre gripping of the bone of fracture department, high durability and convenient use, the operation wound is little, the operating time is short, after the centre gripping simultaneously, the volume that this external fixation clamp of fracture is located external part is less than current external fixation medical instrument of fracture far away, can effectively reduce the influence to patient's later stage rehabilitation activity.
Description
Cross Reference to Related Applications
The present invention claims priority of chinese patent application No. 2021103498803 entitled "a fracture external fixation clamp and system thereof" filed on 31/03/2021 by the chinese patent office, and chinese patent application No. 2021206624042 entitled "a fracture external fixation clamp and system thereof" filed on 31/03/2021 by the chinese patent office, the entire contents of which are incorporated herein by reference.
Technical Field
The invention relates to the technical field of medical instruments, in particular to an external fracture fixation clamp and a system thereof.
Background
The current clinical treatment modes of fracture can be divided into internal fixation and external fixation. The internal fixation is that a steel plate attached to the surface of a bone is placed at the fracture part, the steel plate and the bone are fixed together by using a screw, and after the bone at the fracture part is completely healed, the steel plate and the screw are taken out. The fixing mode has large operation wound, long operation time and long later period recovery time, and patients are painful after two operations. The common external fixation appliances comprise plaster, splints, external fixation frames and the like, and the external fixation has the advantages of small surgical wound, no surgical wound sometimes, quick postoperative recovery and reduction of complications. However, the traditional external fixation frame has a large volume, which affects the rehabilitation activities of postoperative patients, and the fracture alignment needs to be carefully performed by doctors during the operation, so that the labor intensity of the operation is high, the operation process is also complicated, and in summary, how to make the operation of treating the fracture more convenient is a technical problem to be solved urgently by technical staff in the field.
In order to solve the problems, the invention provides an external fixation clamp system for fracture, which can be used for quickly and conveniently treating the fracture, has simple operation and small operation wound, has small volume and does not influence the later rehabilitation activities of patients.
Disclosure of Invention
Objects of the invention include, for example, providing an external fracture fixation clamp and an external fracture fixation system that ameliorate at least one of the above problems in the prior art.
Embodiments of the invention may be implemented as follows:
an embodiment of the present invention provides an external fixation clamp for bone fracture, which includes a central insertion shaft;
the first clamping leg and the second clamping leg are connected to the central inserting shaft; the first clamping leg and the second clamping leg are oppositely arranged, and a clamping space for clamping a bone is formed between the first clamping leg and the second clamping leg bracket; and
a locking member for locking or unlocking the first leg and the second leg;
wherein the first leg and the second leg are relatively fixed when the first leg and the second leg are locked; under the condition that the first clamping leg and the second clamping leg are loosened, the first clamping leg and the second clamping leg can rotate relatively around the axis of the central insertion shaft so as to change the opening degree of the clamping space.
Optionally, a first ratchet portion is disposed on the first leg, a second ratchet portion is disposed on the second leg, and the first ratchet portion is engaged with the second ratchet portion.
Optionally, the locking member includes a first elastic member for applying a pressure to the second leg toward the first leg to engage the first ratchet portion with the second ratchet portion.
Optionally, the fracture external fixation clamp further comprises a second elastic member disposed between the first clamping leg and the second clamping leg, and two ends of the second elastic member respectively act on the first clamping leg and the second clamping leg, so that the first clamping leg and the second clamping leg have a tendency of being separated from each other.
Optionally, a first ratchet part is arranged on the first leg, and a second ratchet part is arranged on the second leg; the first and second ratchet parts are engaged when the locker is in the locking state, and the second elastic member is used to make the first and second ratchet parts have a tendency to be separated from each other.
Optionally, a first mounting groove is formed in the first clamping leg, and the first ratchet portion is disposed around the first mounting groove; a second mounting groove is formed in the second clamping leg, and the second ratchet part is arranged around the second mounting groove; and two ends of the second elastic piece are respectively positioned in the first mounting groove and the second mounting groove.
Optionally, the locking member further comprises a locking nut in threaded connection with the central spindle; the central plug shaft is provided with a limiting step, and the first clamping leg and the second clamping leg are arranged between the limiting step and the locking nut.
Optionally, the first ratchet portion and the second ratchet portion are both unidirectional teeth.
Optionally, the first clamping leg includes a first operating portion, a first connecting portion and a first clamping leg, which are connected in sequence, and the first connecting portion is sleeved on the central insertion shaft, so that the first clamping leg is rotatably connected with the central insertion shaft;
the second clamping leg comprises a second operation part, a second connecting part and a second clamping leg which are sequentially connected, and the second connecting part is sleeved on the central inserting shaft so as to enable the second clamping leg to be rotatably connected with the central inserting shaft;
wherein the first clamping leg and the second clamping leg form the clamping space therebetween; the first operating part and the second operating part are respectively used for being connected with an operating tool to be operated, so that when the operating tool operates the first operating part and the second operating part to rotate relatively, the first clamping leg and the second clamping leg are driven to rotate relatively.
Optionally, the external fixation clamp for fracture further comprises a third clamping leg rotatably connected with the central insertion shaft, and in the axial direction of the central insertion shaft, the second clamping leg is located between the first clamping leg and the third clamping leg;
when the second clamping leg comprises two second clamping legs, the two second clamping legs are located on one side of the clamping space, the third clamping leg is provided with a third clamping leg, and the third clamping leg and the first clamping leg are located on the other side of the clamping space.
Optionally, a fourth ratchet portion is arranged on the third clamping leg, a third ratchet portion is arranged on the second clamping leg, and the third ratchet portion is meshed with the fourth ratchet portion.
Optionally, the end of the first clamping leg is provided with a first edge part, the end of the second clamping leg is provided with a second edge part, and an opening communicated with the clamping space is formed between the first edge part and the second edge part.
Optionally, a first operation hole is formed in the first operation portion, and the first operation hole is used for being inserted into the surgical tool; and a second operation hole is formed in the second operation part and is used for being connected with the surgical tool in an inserting mode.
Optionally, the first clamping leg is fixedly connected with the central inserting shaft.
The embodiment of the invention also provides a fracture external fixation system. The external fracture fixing system comprises a connecting rod and at least two external fracture fixing clamps, wherein the connecting rod is connected with the at least two external fracture fixing clamps simultaneously so as to fix the at least two external fracture fixing clamps into a whole.
Optionally, the central spindle has a through hole, and the through hole extends along the axial direction of the central spindle; the external fixation clamp for fracture further comprises a side hole screw, the central insert shaft is provided with a side hole communicated with the through hole, the side hole screw is in threaded connection with the side hole, one end of the side hole screw is located in the through hole, and therefore the connecting rod of the through hole is locked.
Optionally, the central plug shaft is provided with a threaded hole, and the threaded hole extends along the axial direction of the central plug shaft; the connecting rod is used for being in threaded connection with two adjacent external fracture fixing clamps, and the thread turning directions of the two ends of the connecting rod are opposite.
The external fracture fixation clamp and the system thereof provided by the embodiment of the invention have the beneficial effects of, for example:
the embodiment of the invention provides an external fracture fixation clamp which comprises a central inserting shaft, a locking member, a first clamping leg and a second clamping leg. First press from both sides leg and second press from both sides leg and all connect in the center and insert the axle, and be formed with the centre gripping space that is used for the centre gripping bone between first press from both sides leg and the second press from both sides leg, during the use, the first press from both sides leg of accessible and second press from both sides leg directly stretch into internal the realization fixed to the centre gripping of the bone of fracture department, high durability and convenient use, the operation wound is little, the operating time is short, after the centre gripping simultaneously, the volume that this external fixation clamp of fracture is located external part is less than current external fixation medical instrument of fracture far away, reduce the influence to patient's later stage rehabilitation activity. The locking part is used for locking or loosening the first clamping leg and the second clamping leg, and when the first clamping leg and the second clamping leg are locked, the first clamping leg and the second clamping leg are relatively fixed, so that the problem of bone fixation failure caused by looseness of the fracture external fixation clamp in the use process is avoided; when the first clamping leg and the second clamping leg are released, the first clamping leg and the second clamping leg can rotate relatively to change the opening degree of the clamping space.
The embodiment of the invention also provides a fracture external fixing system which comprises the fracture external fixing clamp. Since the external fracture fixation system comprises the external fracture fixation clamp, the external fracture fixation clamp has all the beneficial effects of the external fracture fixation clamp.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a first external fixation clamp for bone fracture according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating an exploded view of a first external fixation clamp for bone fractures according to an embodiment of the present invention;
FIG. 3 is a schematic view of the second external fixation clamp for bone fracture according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of a second external fixation clamp for bone fractures according to an embodiment of the present invention in an exploded configuration;
FIG. 5 is a schematic structural view of a second leg of a second external fixation clamp for bone fractures according to an embodiment of the present invention;
FIG. 6 is a schematic view of a third external fixation clamp for bone fractures according to an embodiment of the present invention in an assembled configuration from a first perspective;
FIG. 7 is a schematic structural view of a third external fixation clamp for bone fractures according to an embodiment of the present invention, shown in a second perspective;
FIG. 8 is a schematic structural view of a second leg of a third external fixation clamp for bone fractures in accordance with an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a first external fracture fixation system provided by an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a second external fracture fixation system provided by an embodiment of the present invention;
FIG. 11 is a schematic structural view of a third external fracture fixation system provided by an embodiment of the present invention;
FIG. 12 is a schematic view of an assembled structure of a fourth external fracture fixation system according to an embodiment of the present invention;
fig. 13 is an exploded view of a fourth external fracture fixation system according to an embodiment of the present invention.
Icon: 10-external fracture fixation systems; 100-fracture external fixation clamp; 110-central spiale; 111-a via; 112-a side hole; 113-a limit step; 114-a threaded portion; 120-a first clamping leg; 121-a first operating part; 122-a first access hole; 123-a first connection; 124-a first clamping leg; 125-a first blade; 126-first ratchet portion; 130, 130' -a second leg; 131-a second operating part; 132-a second access hole; 133-a second connecting portion; 134-a second clamping leg; 135-a second blade; 136-a second ratchet portion; 137-third ratchet portion; 140-a third leg; 141-a third operating part; 142-a third connection portion; 143-a third clamping leg; 144-a fourth ratchet portion; 150-a retaining member; 151-locking nut; 152-a first resilient member; 161-a clamping space; 162-an opening; 163-side hole screw; 170-first external fixation clamp for fracture; 180-second fracture external fixation clamp; 190-third fracture external fixation clamp; 191-a second elastic member; 192-a second mounting groove; 200-a connecting rod; 211-screwing head; 212-a first threaded rod; 213-second threaded rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
Fig. 1 is an assembly structure diagram of a first external fixation clamp 170 for fracture according to this embodiment, and fig. 2 is an exploded structure diagram of the first external fixation clamp 170 for fracture according to this embodiment. Referring to fig. 1 and 2, the present embodiment provides an external fracture fixation clamp 100.
The external fracture fixation clamp 100 includes a central shaft 110, a retaining member 150, a first leg 120 and a second leg 130. First press from both sides leg 120 and second press from both sides leg 130 and all connect in central inserting shaft 110, and be formed with the centre gripping space 161 that is used for the centre gripping bone between first press from both sides leg 120 and the second press from both sides leg 130, during the use, the first press from both sides leg 120 of accessible and second press from both sides leg 130 directly stretch into internal the realization fixed to the centre gripping of the bone of fracture department, high durability and convenient use, the operation wound is little, the operation time is short, simultaneously after the centre gripping, the volume that this external fixation clamp of fracture 100 lies in external part is less than current external fixation medical instrument of fracture far away, reduce the influence to the recovered activity in patient later stage. The locking member 150 is used for locking or unlocking the first clamping leg 120 and the second clamping leg 130, when the first clamping leg 120 and the second clamping leg 130 are locked, the first clamping leg 120 and the second clamping leg 130 are relatively fixed, so that the problem of bone fixation failure caused by loosening of the fracture external fixation clamp 100 in the using process is avoided; when the first and second legs 120 and 130 are released, the first and second legs 120 and 130 may be relatively rotated to change the opening degree of the clamping space 161.
The external fixation clamp 100 will be further described with reference to the structure of the first external fixation clamp 170 provided in this embodiment:
referring to fig. 1 and fig. 2, in the present embodiment, the central shaft 110 is a cylindrical rod-shaped member, and a through hole 111 penetrating through the central shaft 110 along the axial direction of the central shaft 110 is disposed therein, that is, the axis of the central shaft 110 coincides with the axis of the through hole 111. The first leg 120 and the second leg 130 are respectively rotatable about the axis of the through hole 111 with respect to the central spindle 110. Due to the arrangement of the through hole 111, the connecting rod 200 is arranged in the through hole 111 of the plurality of fracture external fixation clamps 100 in a penetrating manner, so that the plurality of fracture external fixation clamps 100 are connected into a whole through the connecting rod 200, and the central insertion shafts 110 of the plurality of fracture external fixation clamps 100 are coaxially arranged.
In this embodiment, the first clamping leg 120 includes a first operating portion 121, a first connecting portion 123 and a first clamping leg 124 connected in sequence, and the first connecting portion 123 is sleeved on the central insertion shaft 110, so that the first clamping leg 120 is rotatably connected to the central insertion shaft 110. Specifically, the first connection portion 123 has a ring shape, and is formed with a first connection hole through which the center pin 110 is inserted, so as to connect the first leg 120 to the center pin 110.
Optionally, the first leg 120 is fixedly connected to the central spindle 110. Specifically, after the central insertion shaft 110 is inserted through the first connection hole, the first leg 120 is welded and fixed to the central insertion shaft 110, so as to reduce the number of moving parts included in the whole fracture external fixation clamp 100. It is understood that in other embodiments, the first clamping leg 120 may be movably connected to the central shaft 110, or the first clamping leg 120 may be fixedly connected to the central shaft 110 by other methods, for example, the first clamping leg 120 is integrally formed with the central shaft 110.
Similarly, the second clamping leg 130 includes a second operating portion 131, a second connecting portion 133 and a second clamping leg 134 connected in sequence. The second connecting portion 133 is disposed around the central shaft 110, so that the second leg 130 is rotatably connected to the central shaft 110. Specifically, the second connecting portion 133 has a ring shape, and a second connecting hole is formed in the second connecting portion, and the central insertion shaft 110 is inserted through the second connecting hole, so that the second clamping leg 130 is movably connected to the central insertion shaft 110. After connection, the second leg 130 can rotate around the axis of the central shaft 110, so that when the second leg 130 rotates relative to the central shaft 110, the second leg 130 rotates relative to the first leg 120, and the second leg 130 can slide relative to the central shaft 110 around the axial direction of the central shaft 110.
First clamping leg 124 and second clamping leg 134 are each arcuate in shape, and first clamping leg 124 and second clamping leg 134 are oppositely disposed, thereby forming a clamping space 161 between first clamping leg 124 and second clamping leg 134 for clamping a bone. The first operation portion 121 and the second operation portion 131 are respectively used for being connected with a surgical tool (not shown) so as to drive the first clamping leg 124 and the second clamping leg 134 to rotate relatively when the surgical tool manipulates the first operation portion 121 and the second operation portion 131 to rotate relatively, thereby changing the size of the clamping space 161 formed between the first clamping leg 124 and the second clamping leg 134, and further realizing the clamping or releasing of the bone. Optionally, the surgical tool is a forceps, and the first leg 120 and the second leg 130 are manipulated by the forceps to clamp or release the bone.
Specifically, when the first operating portion 121 and the second operating portion 131 are relatively rotated under the manipulation of the surgical tool, the first clamping leg 120 and the second clamping leg 130 are relatively rotated as a whole, and when the first operating portion 121 and the second operating portion 131 are rotated in a relatively approaching direction by the surgical tool, the first clamping leg 124 and the second clamping leg 134 are relatively approached, and the clamping space 161 is relatively reduced, so that the bone located in the clamping space 161 can be clamped. When the first and second operating parts 121 and 131 are rotated in the relatively distant direction by the operation tool, the first and second holding legs 124 and 134 are relatively distant, and the holding space 161 is relatively enlarged, so that the bone located in the holding space 161 can be released or the bone located outside the holding space 161 can be moved into the holding space 161.
Optionally, the first operation portion 121 is provided with a first operation hole 122, the first operation hole 122 is used for being plugged with an operation tool, the second operation portion 131 is provided with a second operation hole 132, and the second operation hole 132 is used for being plugged with the operation tool, so that the first operation portion 121, the second operation portion 131 and the operation tool can be conveniently detached, and the operation is more convenient. Specifically, the first operating portion 121 and the second operating portion 131 are both cylindrical, the first operating hole 122 is coaxially disposed with the first operating portion 121, and an axis of the first operating hole 122 is parallel to an axis of the central insert shaft 110; the second operation hole 132 is coaxially disposed with the second operation portion 131, and an axis of the second operation hole 132 is parallel to an axis of the center spindle 110.
Meanwhile, one end of the first clamping leg 124, which is far away from the first connecting portion 123, is provided with a first blade portion 125, that is, the end of the first clamping leg 124 is provided with the first blade portion 125; the second blade 135 is disposed at the first end of the second clamping leg 134 away from the second connecting portion 133, that is, the second blade 135 is disposed at the end of the second clamping leg 134. When the locking member 150 locks the first clamping leg 120 and the second clamping leg 130, the tip of the first edge portion 125 is opposite to the tip of the second edge portion 135, that is, a connecting line between the tip of the first edge portion 125 and the tip of the second edge portion 135 is perpendicular to the axis of the central plug 110. An opening 162 communicating with the clamping space 161 is formed between the first blade 125 and the second blade 135, and when the first clamping leg 124 and the second clamping leg 134 rotate relatively, the distance between the first blade 125 and the second blade 135 changes, and the size of the opening 162 changes accordingly.
Because the first clamping leg 124 and the second clamping leg 134 are respectively provided with the first blade portion 125 and the second blade portion 135, when in use, the first blade portion 125 and the second blade portion 135 can directly pierce tissues such as skin and internal muscles, so that the first blade portion 125 and the second blade portion 135 extend into the body, thereby clamping the bone in the body into the clamping space 161, ensuring the stable connection between the external fixation clamp 100 for fracture and the bone, and simultaneously, the operation process is more convenient and faster. Specifically, the first blade 125 is a sharp blade structure formed by an oblique cutting surface provided at the end of the first clamping leg 124; the second blade 135 is a sharp blade structure formed by an oblique section provided at the end of the second clamping leg 134.
With continued reference to fig. 1 and 2, in the present embodiment, the external fracture fixation clamp 100 further includes a locking member 150 for locking or unlocking the first leg 120 and the second leg 130 by the engagement of the locking member 150 with the first leg 120 and/or the second leg 130. Under the condition that the first clamping leg 120 and the second clamping leg 130 are locked, the first clamping leg 120 and the second clamping leg 130 are relatively fixed, namely, the first clamping leg 120 and the second clamping leg 130 cannot relatively rotate at the moment; in a case where the first and second legs 120 and 130 are released, the first and second legs 120 and 130 may be relatively rotated such that the distance between the first blade 125 and the second blade 135 is changed, thereby achieving a change in the opening degree of the clamping space 161. Note that, in the description of the present embodiment, "the opening degree of the clamping space 161" means the size of the opening 162 of the clamping space 161.
Optionally, the locking member 150 includes a locking nut 151 threadedly coupled to the central spindle 110, the central spindle 110 is provided with a limit step 113, and the first leg 120 and the second leg 130 are mounted between the limit step 113 and the locking nut 151. Specifically, the central spindle 110 is constructed similarly to a bolt, and has a cylindrical rod member having one end peripheral surface thereof projected radially outward to form a limit step 113 having a radial dimension larger than that of the rod member itself, and one end of the rod member remote from the limit step 113 is provided with a screw portion 114 so as to be coupled with a lock nut 151 via the screw portion 114. Further, the limiting step 113 is provided with a wrench resisting plane, and when the locking nut 151 is screwed, the plane on the limiting step 113 can be clamped by a wrench, so that the central spindle 110 is prevented from synchronously rotating along with the locking nut 151.
The part of the rod located between the threaded portion 114 and the limiting step 113 is a polished rod portion, and the first clamping leg 120 and the second clamping leg 130 are sleeved on the polished rod portion. When the locking nut 151 is tightened, the locking nut 151 applies a force directed to the stopping step 113 to the first leg 120 and the second leg 130, thereby clamping the first leg 120 and the second leg 130 between the locking nut 151 and the stopping step 113 to lock the first leg 120 and the second leg 130.
Further, the locker 150 further includes a first elastic member 152 disposed between the second leg 130 and the lock nut 151, and the first elastic member 152 is used to apply an elastic force directed toward the first leg 120 to the second leg 130 to lock the first leg 120 and the second leg 130.
Specifically, the limit step 113, the first leg 120, the second leg 130, the first elastic member 152 and the lock nut 151 are sequentially disposed along the axial direction of the central spindle 110. When the locking nut 151 is tightened, the first elastic member 152 is elastically deformed by the pressing force applied by the locking nut 151, and applies a force to the second leg 130 moving toward the first leg 120, so as to press the second leg 130 against the first leg 120, thereby locking the first leg 120 and the second leg 130. When the lock nut 151 is loosened, the pressing force applied to the first elastic member 152 is reduced, and accordingly, the elastic force applied to the second leg 130 by the first elastic member 152 is reduced, and the first leg 120 and the second leg 130 are relatively rotated under the manipulation of the surgical tool for operation. Alternatively, the first elastic member 152 is a wave spring, and it is understood that in other embodiments, the first elastic member 152 may be specifically configured according to requirements, for example, configured as a coil spring.
The first leg 120 is provided with a first ratchet portion 126, the second leg 130 is provided with a second ratchet portion 136, and the first ratchet portion 126 is engaged with the second ratchet portion 136. Specifically, the first ratchet portion 126 is provided on the first connection portion 123, and the second ratchet portion 136 is provided on the second connection portion 133. When the first and second legs 120 and 130 are relatively rotated by manipulating the first and second manipulating portions 121 and 131 with the first and second legs 120 and 130 being released, first the first and second legs 120 and 130 have a tendency to be relatively apart in the axial direction of the center insert shaft 110 and compress the first elastic member 152; after the ratchet teeth of the first ratchet portion 126 and the second ratchet portion 136 are disengaged from each other, the first leg 120 and the second leg 130 are relatively rotated, and after the first leg 120 and the second leg 130 are relatively rotated by an angle corresponding to a central angle corresponding to one ratchet tooth, the first ratchet portion 126 and the second ratchet portion 136 are engaged with each other again under the elastic force of the first elastic member 152, and if the first leg 120 and the second leg 130 continue to receive the rotational force applied by the surgical tool at this time, the above process is repeated until the first leg 120 and the second leg 130 are rotated to a desired position, so that during the adjustment process, the first ratchet portion 126 and the second ratchet portion 136 continuously repeat the engaging and disengaging process, and the second leg 130 continuously jumps in the axial direction relative to the first leg 120.
Referring again to fig. 1 and 2 in combination, in this embodiment, the external fracture fixation clamp 100 further includes a side hole screw 163. The central plug shaft 110 is provided with a side hole 112 communicated with the through hole 111, a side hole screw 163 is in threaded connection with the side hole 112, and one end of the side hole screw 163 is located in the through hole 111 to lock a screw rod penetrating through the through hole 111, so that relative displacement between the connecting rod 200 and the central plug shaft 110 is avoided in the using process. Specifically, the axis of the side hole 112 extends in the radial direction of the through hole 111, and in use, the connecting rod 200 is inserted into the through hole 111 of the central spindle, and the side hole screw 163 is screwed into the side hole 112, and as the side hole screw 163 is tightened, one end of the side hole screw 163 gradually extends into the through hole 111 and interferes with the connecting rod 200, thereby locking the connecting rod 200 to the central spindle 110.
According to the external fixation clamp 100 for fracture provided by the embodiment, the working principle of the external fixation clamp 100 for fracture is as follows:
when the external fixation clamp 100 is used, the external fixation clamp 100 is placed outside a bone to be fixed according to requirements, a surgical tool is connected with the first operation part 121 and the second operation part 131, the surgical tool is operated to drive the first clamping leg 120 and the second clamping leg 130 to rotate relatively to open the clamping space 161, so that the bone is placed in the clamping space 161, then the surgical tool is operated to drive the first clamping leg 120 and the second frame body to rotate reversely to reduce the opening degree of the clamping space 161, the first blade part 125 and the second blade part 135 penetrate through the skin to enter the body, so that the first clamping leg 124 and the second clamping leg 134 are clamped and fixed on the surface of the bone, and meanwhile, in the clamping process, medical staff can adjust the penetrating positions of the first blade part 125 and the second blade part 135 according to experience to avoid nerves, blood vessels and the like. After the first clamping leg 124 and the second clamping leg 134 reach the required positions, the locking nut 151 is screwed, under the extrusion of the locking nut 151, the first elastic part 152 is elastically deformed, the first clamping leg 124 and the second clamping leg 134 are pressed between the first elastic part 152 and the limiting step 113, and meanwhile, the first ratchet part 126 and the second ratchet part 136 are matched with the meshing effect, so that the relative displacement of the first clamping leg 124 and the second clamping leg 134 can be effectively prevented, and the reliability of bone clamping is further ensured.
The process is repeated to clamp the fracture external fixation clamp 100 at other fracture positions, then the connecting rod 200 sequentially penetrates through the through hole 111 of the fracture external fixation clamp 100 and is fixed with the central inserting shaft 110 through the side hole screw 163 on the central inserting shaft 110, so that at least two fracture external fixation clamps 100 are fixed together, and the problems of relative displacement and dislocation in the bone growth and healing process are avoided.
The external fixation clamp 100 for fracture provided by the embodiment has at least the following advantages:
the external fixation clamp 100 for fracture provided by this embodiment is used for directly clamping bone by inserting the clamping leg into the body, and locking the first leg 120 and the second leg 130 by the locking member 150 after clamping to fix the first leg 120 and the second leg 130 together, and further avoiding the possibility of relative displacement of the first leg 120 and the second leg 130 under the locking condition by the mutual engagement of the first ratchet portion 126 and the second ratchet portion 136 on the first leg 120 and the second leg 130. This external fixation clamp for fracture 100 can carry out quick convenient treatment to the fracture, and operation easy operation, wound are little, help alleviateing patient's misery, and small in size can effectively avoid causing the influence to the recovered activity in patient's later stage moreover.
Example 2
Fig. 3 is an assembly structure diagram of a second external fixation clamp for fracture 180 according to this embodiment, fig. 4 is an exploded structure diagram of the second external fixation clamp for fracture 180 according to this embodiment, and fig. 5 is a structure of a second leg 130' in the second external fixation clamp for fracture 180 according to this embodiment. Referring to fig. 1 to 5, the present embodiment provides a second external fixation clamp for fracture 180, the second external fixation clamp for fracture 180 has substantially the same structure as the first external fixation clamp for fracture 170 provided in embodiment 1, and the difference includes a second leg 130' and a third leg 140.
The third clamping leg 140 has substantially the same structure as the first clamping leg 120, specifically, the third clamping leg 140 includes a third operating portion 141, a third connecting portion 142 and a third clamping leg 143, which are sequentially disposed, and similarly, the end of the third clamping leg 143 is also provided with a blade portion. The third connecting portion 142 is sleeved on the central shaft 110, so as to be rotatably connected to the central shaft 110, and can slide along the axial direction of the central shaft 110 relative to the central shaft 110 under the action of an external force. The first leg 120, the second leg 130 'and the third leg 140 are sequentially disposed along the axial direction of the central spindle 110, that is, the second leg 130' is located between the first leg 120 and the third leg 140 in the axial direction of the central spindle 110, such that the first elastic member 152 is disposed between the third leg 140 and the lock nut 151. The first clamping leg 124, the second clamping leg 134 and the third clamping leg 143 together form a clamping space 161, and the first clamping leg 124 and the third clamping leg 143 are located on the same side of the clamping space 161, and the second clamping leg 134 is located on the other side of the clamping space 161.
Further, the second leg 130 'of the second external fixation clamp 180 has a different structure from the second leg 130 of the first external fixation clamp 170, specifically, the second leg 130 of the first external fixation clamp 170 includes one second clamping leg 134, and the second leg 130' of the second external fixation clamp 180 includes two second clamping legs 134. In other words, the second leg has a different state of the art in the first 170 and second 180 external fixation clamps.
The two second clamping legs 134 of the second clamping leg 130' are spaced apart from each other along the axial direction of the second connecting portion 133, so that when the second connecting portion 133 is sleeved on the central shaft 110, the two second clamping legs 134 are spaced apart from each other along the axial direction of the central shaft 110 and are located on the same side of the clamping space 161. Two pairs of clamping legs are formed so as to be distributed along the axial direction of the central spindle 110, and the cutting edges of each pair of clamping legs are arranged to face each other. Two pairs of centre gripping legs can increase the centre gripping area, further guarantee the centre gripping effect.
The third operation portion 141 is provided with a third operation hole, and the third operation hole is coaxially disposed with the first operation hole 122, so that a surgical tool can be simultaneously inserted into the first operation hole 122 and the third operation hole, thereby driving the first leg 120 and the third leg 140 to synchronously rotate.
Further, a fourth ratchet portion 144 is disposed on the third leg 140, and a third ratchet portion 137 is disposed on the second leg 130', and the third ratchet portion 137 is engaged with the fourth ratchet portion 144. Specifically, the fourth ratchet part 144 is disposed on the third connection part 142, the third ratchet part 137 is disposed on the second connection part 133, and the third ratchet part 137 is located at a side of the second connection part 133 close to the third connection part 142.
Example 3
Fig. 6 is a schematic structural view of a third external fixation clamp for fracture 190 provided in this embodiment at a first viewing angle, fig. 7 is a schematic structural view of the third external fixation clamp for fracture 190 provided in this embodiment at a second viewing angle, and fig. 8 is a schematic structural view of the second leg 130 in the third external fixation clamp for fracture 190 provided in this embodiment of the present invention. Referring to fig. 1 to 8, a third external fixation clamp 190 for fracture is provided in the present embodiment, and the third external fixation clamp 190 for fracture has substantially the same structure as the first external fixation clamp 170 provided in embodiment 1, and the same points are not repeated, but the elastic elements are located at different positions.
Specifically, the elastic member in the third external fixation clamp 190 for fracture is the second elastic member 191, the second elastic member 191 is disposed between the first leg 120 and the second leg 130, and both ends of the second elastic member 191 respectively act on the first leg 120 and the second leg 130, so that the first leg 120 and the second leg 130 have a tendency to separate from each other, so that when the locking member 150 does not completely clamp the first leg 120 and the second leg 130, the first ratchet part 126 on the first leg 120 and the second ratchet part 136 on the second leg 130 are kept in a separated state by the second elastic member 191, and meanwhile, when the locking member 150 is in a locked state, the second elastic member 191 is compressed by a locking force, and the first ratchet part 126 is engaged with the second ratchet part 136.
Optionally, the second elastic member 191 is a coil spring, and it is understood that in other embodiments, the second elastic member 191 may be configured according to a type of structure required to apply an elastic force to the first leg 120 and the second leg 130, so that the first leg 120 and the second leg 130 tend to move away from each other.
Further, a first mounting groove is formed on the first leg 120, the first ratchet portion 126 is disposed around the first mounting groove, and similarly, a second mounting groove 192 is formed on the second leg 130, and the second ratchet portion 136 is disposed around the second mounting groove 192. Both ends of the second elastic member 191 are respectively located in the first mounting groove and the second mounting groove 192, so that both ends of the second elastic member 191 are limited through the first mounting groove and the second mounting groove 192, the positioning stability of the second elastic member 191 is ensured, and meanwhile, the first mounting groove and the second mounting groove 192 can form a space for accommodating the second elastic member 191, thereby avoiding the influence of the second elastic member 191 on the engagement of the first ratchet part 126 and the second ratchet part 136.
Alternatively, the first ratchet portion 126 and the second ratchet portion 136 are both unidirectional teeth, so that when the first ratchet portion 126 and the second ratchet portion 136 are engaged, the first ratchet portion 126 and the second ratchet portion 136 are locked from relative rotation in one direction and can only be rotated relative to each other in the other direction, specifically, when in use, the locked relative rotation direction after the first ratchet portion 126 and the second ratchet portion 136 are engaged is used as the direction for releasing the first leg 120 and the second leg 130, and the relatively rotatable direction after the first ratchet portion 126 and the second ratchet portion 136 are engaged is used as the direction for clamping the first leg 120 and the second leg 130, so that the third external fixation clamp 190 can be effectively prevented from loosening.
The operation of the third external fixation clamp for fracture 190 provided in this embodiment 3 is as follows:
during operation, the third fracture external fixation clamp 190 is clamped onto the bone to be clamped by using an operation tool, at this time, the first clamping leg 120 and the second clamping leg 130 are kept separated due to the second elastic piece 191 arranged between the first clamping leg 120 and the second clamping leg 130 and under the action of the elastic force exerted by the second elastic piece 191, so that the first ratchet part 126 and the second ratchet part 136 are separated from each other, the first clamping leg 120 and the second clamping leg 130 can be opened or closed at will under the action of the external force, and the operation is convenient.
When the medical staff finds a proper position to clamp the third external fixation clamp 190 on the bone and maintain a certain clamping force of the third external fixation clamp 190 on the bone, the locking nut 151 is rotated with the other hand, and the first leg 120 and the second leg 130 are forced to approach each other by the compression of the locking nut 151, so that the second elastic member 191 is compressed, and the first ratchet portion 126 and the second ratchet portion 136 are brought into contact engagement.
Since the first ratchet portion 126 and the second ratchet portion 136 are both unidirectional teeth, when the first ratchet portion 126 is engaged with the second ratchet portion 136, the rotation between the first leg 120 and the second leg 130 to the open state is locked, so that even if the surgical tool is loosened, the third fracture external fixation clamp 190 keeps clamping the bone, applying a continuous clamping force to the bone, and avoiding the subsequent loosening problem.
Example 4
Fig. 9 is a schematic structural diagram of a first external fracture fixation system 10 provided in this embodiment. Referring to fig. 9, the present embodiment also provides an external fracture fixation system 10, wherein the external fracture fixation system 10 uses the external fracture fixation clamp as a core component, and specifically, the external fracture fixation system comprises a connecting rod 200 and at least two external fracture fixation clamps 100, and the at least two external fracture fixation clamps 100 are connected into a whole through the connecting rod 200. During the use, connecting rod 200 wears to establish two at least fracture external fixation clamp 100's through-hole 111 simultaneously to it is fixed with connecting rod 200 and central plug shaft 110 through side hole screw 163 on fracture external fixation clamp 100, thereby fixes two at least fracture external fixation clamps 100 as an organic whole, and then can effectively realize the fixed of fracture department's broken bone, and then avoids the condition of relative displacement to appear in the healing process.
Specifically, in the external fracture fixation system 10 shown in fig. 9, the number of the external fracture fixation clamps 100 is two, and both of the two external fracture fixation clamps 100 are the first external fracture fixation clamps 170. During the use, two external fixation clamps 100 of fracture centre gripping respectively on two broken bones of fracture department, then pass two external fixation clamps 100 of fracture's through-hole 111 with connecting rod 200 in proper order to fix two external fixation clamps 100 of fracture as an organic whole, avoid in bone healing growth process, two external fixation clamps 100 of fracture take place relative displacement such as relative rotation.
It should be noted that, in the first external fixation system for fracture 10 provided in this embodiment, the number of the external fixation clamps 100 is two, and the first external fixation clamp 170 (shown in fig. 1) is adopted for both of the two external fixation clamps 100, it can be understood that, in other embodiments, the structure and type of the external fixation clamps 100 may be set according to the requirement, for example, when the skull is broken into three segments, the number of the external fixation clamps 100 may be three, and the three external fixation clamps 100 are respectively clamped and fixed on the three segments of broken bone. Meanwhile, the structure of the fracture external fixation clamp 100 in the fracture external fixation system 10 can also be specifically configured according to the requirements, such as the second fracture external fixation system 10 provided in the embodiment shown in fig. 10, both of the fracture external fixation clamps 100 contained therein are a second fracture external fixation clamp 180 (shown in fig. 3), or a third fracture external fixation system 10 provided in the present embodiment as shown in fig. 11, two fracture external fixation clamps 100 are included therein, respectively, a first fracture external fixation clamp 170 (shown in fig. 1) and a second fracture external fixation clamp 180 (shown in fig. 3), or a fourth fracture external fixation system 10 provided in the present embodiment as shown in fig. 12, both of the external fixation clamps 100 for fractures contained therein are a third external fixation clamp for fractures 190 (shown in the configuration of fig. 6 and 7).
Further, in the first external fixation system for fracture 10 shown in fig. 9, the connecting rod 200 is a kirschner wire, and the surface thereof is smooth, so that the central shaft 110 is locked and fixed with the connecting rod 200 by the side hole screw 163 installed on the central shaft 110 of the first external fixation clip for fracture 170.
It will be appreciated that in other embodiments, other means may be used to secure the connecting rod 200 to the external fixation clamp 100.
Fig. 13 is an exploded view of a fourth external fracture fixation system 10 according to the present embodiment. In the structure shown in fig. 12 and 13, both axial ends of the connecting rod 200 are respectively provided with threads, i.e., the connecting rod 200 has a first threaded rod 212 and a second threaded rod 213 respectively located at both axial ends. The central insert shaft 110 of the external fixation clamp 100 for fracture has a threaded hole which is threadedly coupled with one end of the connecting rod 200, so that the first threaded rod 212 and the second threaded rod 213 are respectively used for being stably threadedly coupled with the corresponding external fixation clamp 100 for fracture, thereby achieving the connection fixation of the two external fixation clamps 100 for fracture. And the first and second threaded rods 212 and 213 are rotated in opposite directions, so that when the connecting rod 200 is rotated, one of the first and second threaded rods 212 and 213 is rotated out, and the other of the first and second threaded rods 212 and 213 is rotated in. Obviously, the through holes 111 may be provided as threaded holes in the first external fixation clamp 170 and the second external fixation clamp 180, so that the connection is achieved by the connecting rod 200 having the first threaded rod 212 and the second threaded rod 213, and similarly, the threaded holes may be provided as smooth through holes in the third external fixation clamp 190, so that the central insertion shaft 110 is locked and fixed with the kirschner wire by providing side hole screws.
Further, the connecting rod 200 further includes a screw head 211 between the first and second threaded rods 212 and 213, and the rotation of the connecting rod 200 is manipulated by operating the screw head 211. Specifically, during operation, one of the external fixation clamps 100 is fixed on the bone, and then the connecting rod 200 with the matched length is selected, and the first threaded rod 212 of the connecting rod 200 is screwed into the fixed external fixation clamp 100. Then, another external fixation clamp 100 for fracture is fixed, and after fixation, the connecting rod 200 is reversely screwed, so that the first threaded rod 212 is screwed out from the external fixation clamp 100 for fracture which is fixed first, and the second threaded rod 213 is screwed into the external fixation clamp 100 for fracture which is fixed later, so that the two external fixation clamps 100 for fracture can be fixed together, and the operation is simple and fast.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (16)
1. An external fixation clamp for bone fractures, comprising:
a central spindle is inserted;
the first clamping leg and the second clamping leg are connected to the central inserting shaft; the first clamping leg and the second clamping leg are oppositely arranged, and a clamping space for clamping a bone is formed between the first clamping leg and the second clamping leg; and
a locking member for locking or unlocking the first leg and the second leg;
wherein the first leg and the second leg are relatively fixed when the first leg and the second leg are locked; under the condition that the first clamping leg and the second clamping leg are loosened, the first clamping leg and the second clamping leg can rotate relatively around the axis of the central insertion shaft so as to change the opening degree of the clamping space.
2. The external fixation clamp for bone fracture according to claim 1, wherein said first leg has a first ratchet portion disposed thereon and said second leg has a second ratchet portion disposed thereon, said first ratchet portion engaging said second ratchet portion.
3. The external fixation clamp of claim 2, wherein said locking member includes a first resilient member for applying pressure to said second leg toward said first leg to engage said first ratchet portion with said second ratchet portion.
4. The external fixation clamp of claim 1, further comprising a second elastic member disposed between the first leg and the second leg, wherein two ends of the second elastic member respectively act on the first leg and the second leg to cause the first leg and the second leg to have a tendency to separate from each other.
5. The external fixation clamp for bone fractures of claim 4, wherein said first leg is provided with a first ratchet portion and said second leg is provided with a second ratchet portion; the first and second ratchet parts are engaged when the locker is in the locking state, and the second elastic member is used to make the first and second ratchet parts have a tendency to be separated from each other.
6. The external fixation clamp for bone fracture according to claim 5, wherein said first leg is provided with a first mounting groove, and said first ratchet portion is disposed around said first mounting groove; a second mounting groove is formed in the second clamping leg, and the second ratchet part is arranged around the second mounting groove; and two ends of the second elastic piece are respectively positioned in the first mounting groove and the second mounting groove.
7. The external fixation clamp for bone fracture according to any one of claims 2-6, wherein said locking member further comprises a locking nut threadedly coupled to said central spindle; the central plug shaft is provided with a limiting step, and the first clamping leg and the second clamping leg are arranged between the limiting step and the locking nut.
8. The external fixation clip of claim 2 or 5, wherein the first and second ratchet portions are both unidirectional teeth.
9. The external fixation clamp for bone fracture according to claim 1, wherein the first clamping leg comprises a first operating part, a first connecting part and a first clamping leg which are connected in sequence, the first connecting part is sleeved on the central insertion shaft so as to connect the first clamping leg with the central insertion shaft;
the second clamping leg comprises a second operation part, a second connecting part and a second clamping leg which are sequentially connected, and the second connecting part is sleeved on the central inserting shaft so as to enable the second clamping leg to be rotatably connected with the central inserting shaft;
wherein the first clamping leg and the second clamping leg form the clamping space therebetween; the first operating part and the second operating part are respectively used for being connected with an operating tool to be operated, so that when the operating tool operates the first operating part and the second operating part to rotate relatively, the first clamping leg and the second clamping leg are driven to rotate relatively.
10. The external fixation clamp of claim 9, further comprising a third leg rotatably connected to the central shaft, wherein the second leg is located between the first leg and the third leg in the axial direction of the central shaft; a fourth ratchet part is arranged on the third clamping leg, a third ratchet part is arranged on the second clamping leg, and the third ratchet part is meshed with the fourth ratchet part;
when the second clamping leg comprises two second clamping legs, the two second clamping legs are located on one side of the clamping space, the third clamping leg is provided with a third clamping leg, and the third clamping leg and the first clamping leg are located on the other side of the clamping space.
11. The external fixation clamp for bone fracture as claimed in claim 9, wherein the distal end of the first clamping leg is provided with a first blade portion, the distal end of the second clamping leg is provided with a second blade portion, and an opening communicating with the clamping space is formed between the first blade portion and the second blade portion.
12. The external fixation clamp for bone fracture as claimed in claim 9, wherein the first operation portion has a first operation hole for inserting the surgical tool; and a second operation hole is formed in the second operation part and is used for being connected with the surgical tool in an inserting mode.
13. The external fixation clamp of claim 1, wherein the first leg is fixedly connected to the central shaft.
14. An external fixation system for bone fractures, comprising a connecting rod and at least two external fixation clamps for bone fractures according to any one of claims 1 to 13, wherein the connecting rod is connected to at least two of the external fixation clamps for bone fractures simultaneously to fix the at least two external fixation clamps into a single body.
15. The external bone fracture fixation system of claim 14, wherein the central insertion shaft has a through hole extending in an axial direction of the central insertion shaft; the external fixation clamp for fracture further comprises a side hole screw, the central insert shaft is provided with a side hole communicated with the through hole, the side hole screw is in threaded connection with the side hole, one end of the side hole screw is located in the through hole, and therefore the connecting rod of the through hole is locked.
16. The external bone fracture fixation system of claim 14, wherein the central insertion shaft has a threaded bore extending axially along the central insertion shaft; the connecting rod is used for being in threaded connection with two adjacent external fracture fixing clamps, and the thread turning directions of the two ends of the connecting rod are opposite.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021206624042 | 2021-03-31 | ||
| CN2021103498803 | 2021-03-31 | ||
| CN202120662404 | 2021-03-31 | ||
| CN202110349880.3A CN112914700A (en) | 2021-03-31 | 2021-03-31 | External fixation clamp for fracture and system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114010291A true CN114010291A (en) | 2022-02-08 |
| CN114010291B CN114010291B (en) | 2024-05-24 |
Family
ID=80062610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111317056.6A Active CN114010291B (en) | 2021-03-31 | 2021-11-09 | External fracture fixation clamp and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114010291B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114601546A (en) * | 2022-03-01 | 2022-06-10 | 上海黑焰医疗科技有限公司 | Combined clavicle fixing plate |
| CN115153804A (en) * | 2022-06-24 | 2022-10-11 | 上海黑焰医疗科技有限公司 | Bone clamp structure and bone clamp system |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1635137A (en) * | 1927-01-11 | 1927-07-05 | Clarence E Mullens | Bone clamp |
| GB470579A (en) * | 1936-02-18 | 1937-08-18 | Roger Anderson | Improvements in or relating to splints for use in the reduction of fractures of bones having ball and socket articulation |
| GB483903A (en) * | 1937-07-29 | 1938-04-27 | Henri Meyer | Setting apparatus for the treatment of bone fractures in the limbs |
| EP0457017A1 (en) * | 1990-05-15 | 1991-11-21 | Synthes AG, Chur | Fixations system for clamps |
| DE19520464C1 (en) * | 1995-06-03 | 1997-02-27 | Univ Schiller Jena | Spike-type external fixator for broken bones |
| WO2000062693A1 (en) * | 1999-04-21 | 2000-10-26 | Eaves Felmont F Iii | Bone fracture fixation clip |
| US6589241B1 (en) * | 2000-10-12 | 2003-07-08 | Zimmer, Inc. | Bone clamp |
| CN101040796A (en) * | 2006-03-20 | 2007-09-26 | 德普伊产品公司 | Bone fracture fixation plate shaping system |
| CN201006622Y (en) * | 2007-02-06 | 2008-01-16 | 鑫爵实业股份有限公司 | Ceramic tile tongs structure improvement |
| CN201642267U (en) * | 2010-01-20 | 2010-11-24 | 丁文鸽 | Tibiofibular syndesmosis separation and tibial plateau fracture resetting maintainer |
| US8685037B1 (en) * | 2009-12-22 | 2014-04-01 | Christopher Jordan | Bone reduction and plate clamp assembly |
| DE202017004226U1 (en) * | 2017-08-11 | 2017-10-04 | Cardiomedical Gmbh | Surgical instrument |
| US20180168707A1 (en) * | 2016-12-20 | 2018-06-21 | Mohammad Javad Shariati | Bone reduction and internal fixation apparatus and method for using same |
| CN110226963A (en) * | 2019-07-15 | 2019-09-13 | 南京市第一医院 | The combined type reduction forceps that a kind of closed reduction uses when fracturing |
| CN111012467A (en) * | 2019-12-31 | 2020-04-17 | 河北医科大学第三医院 | Automatic traction device for tibia fracture coaptation operation |
| CN111493995A (en) * | 2020-03-27 | 2020-08-07 | 单国华 | Clamp for fracture operation |
| US20210007823A1 (en) * | 2019-07-12 | 2021-01-14 | Olaf Storz | Fast-action clamping device with locking mechanism, and surgical device |
-
2021
- 2021-11-09 CN CN202111317056.6A patent/CN114010291B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1635137A (en) * | 1927-01-11 | 1927-07-05 | Clarence E Mullens | Bone clamp |
| GB470579A (en) * | 1936-02-18 | 1937-08-18 | Roger Anderson | Improvements in or relating to splints for use in the reduction of fractures of bones having ball and socket articulation |
| GB483903A (en) * | 1937-07-29 | 1938-04-27 | Henri Meyer | Setting apparatus for the treatment of bone fractures in the limbs |
| EP0457017A1 (en) * | 1990-05-15 | 1991-11-21 | Synthes AG, Chur | Fixations system for clamps |
| CH681422A5 (en) * | 1990-05-15 | 1993-03-31 | Synthes Ag | |
| DE19520464C1 (en) * | 1995-06-03 | 1997-02-27 | Univ Schiller Jena | Spike-type external fixator for broken bones |
| WO2000062693A1 (en) * | 1999-04-21 | 2000-10-26 | Eaves Felmont F Iii | Bone fracture fixation clip |
| US6589241B1 (en) * | 2000-10-12 | 2003-07-08 | Zimmer, Inc. | Bone clamp |
| CN101040796A (en) * | 2006-03-20 | 2007-09-26 | 德普伊产品公司 | Bone fracture fixation plate shaping system |
| CN201006622Y (en) * | 2007-02-06 | 2008-01-16 | 鑫爵实业股份有限公司 | Ceramic tile tongs structure improvement |
| US8685037B1 (en) * | 2009-12-22 | 2014-04-01 | Christopher Jordan | Bone reduction and plate clamp assembly |
| CN201642267U (en) * | 2010-01-20 | 2010-11-24 | 丁文鸽 | Tibiofibular syndesmosis separation and tibial plateau fracture resetting maintainer |
| US20180168707A1 (en) * | 2016-12-20 | 2018-06-21 | Mohammad Javad Shariati | Bone reduction and internal fixation apparatus and method for using same |
| DE202017004226U1 (en) * | 2017-08-11 | 2017-10-04 | Cardiomedical Gmbh | Surgical instrument |
| US20210007823A1 (en) * | 2019-07-12 | 2021-01-14 | Olaf Storz | Fast-action clamping device with locking mechanism, and surgical device |
| CN110226963A (en) * | 2019-07-15 | 2019-09-13 | 南京市第一医院 | The combined type reduction forceps that a kind of closed reduction uses when fracturing |
| CN111012467A (en) * | 2019-12-31 | 2020-04-17 | 河北医科大学第三医院 | Automatic traction device for tibia fracture coaptation operation |
| CN111493995A (en) * | 2020-03-27 | 2020-08-07 | 单国华 | Clamp for fracture operation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114601546A (en) * | 2022-03-01 | 2022-06-10 | 上海黑焰医疗科技有限公司 | Combined clavicle fixing plate |
| CN115153804A (en) * | 2022-06-24 | 2022-10-11 | 上海黑焰医疗科技有限公司 | Bone clamp structure and bone clamp system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114010291B (en) | 2024-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8728079B2 (en) | Clamp for temporary or definitive external orthopaedic fixation, and external fixation system comprising said clamp | |
| US10299830B2 (en) | Clamping assembly for external fixation system | |
| CN114010291A (en) | External fixation clamp for fracture and system thereof | |
| JP4215511B2 (en) | Sternum fixation device | |
| US8377060B2 (en) | Fixation device and multiple-axis joint for a fixation device | |
| EP0686375B1 (en) | Surgical instrument for use during connection of a fractured bone | |
| JP2004523300A5 (en) | ||
| US20060089651A1 (en) | Apparatus and method for anchoring a surgical rod | |
| US20130110110A1 (en) | Polyaxial external fixator and method of using the same | |
| US20160270822A1 (en) | External fixation system | |
| EP3243455A1 (en) | External fixator assembly | |
| AU2014298953B2 (en) | Anchoring group for an external fixator | |
| US5674221A (en) | External fixator with improved clamp and methods for use | |
| CN112914700A (en) | External fixation clamp for fracture and system thereof | |
| CN107049466B (en) | Bone surgery screwdriver | |
| JPH04319348A (en) | High-speed wrench for surgery | |
| CN219422941U (en) | General fracture reduction fixing device | |
| EP3372178A1 (en) | External fixator assembly | |
| JP2004350774A (en) | External fixation device and piercing pin attaching/detaching joint | |
| CN216675837U (en) | Surgical instrument with reusable handle | |
| US20240188993A1 (en) | Connecting apparatus for connecting pins and/or rod elements of an external fixator, external fixator, and device for outpatient emergency care | |
| CN114176704A (en) | A hemostasis rescue device for hospital intracardiac branch of academic or vocational study |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221109 Address after: No. 1628, Suzhao Road, Minhang District, Shanghai 200100 Applicant after: Shanghai Yanyi Digital Medical Technology Co.,Ltd. Applicant after: SHANGHAI HEIYAN MEDICAL TECHNOLOGY CO.,LTD. Address before: 200131 309, No.2, Lane 166, Tianxiong Road, Pudong New Area, China (Shanghai) pilot Free Trade Zone, Shanghai Applicant before: SHANGHAI HEIYAN MEDICAL TECHNOLOGY CO.,LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |