CN114010291B - External fracture fixation clamp and system thereof - Google Patents
External fracture fixation clamp and system thereof Download PDFInfo
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- CN114010291B CN114010291B CN202111317056.6A CN202111317056A CN114010291B CN 114010291 B CN114010291 B CN 114010291B CN 202111317056 A CN202111317056 A CN 202111317056A CN 114010291 B CN114010291 B CN 114010291B
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- 210000000988 bone and bone Anatomy 0.000 claims abstract description 35
- 238000003780 insertion Methods 0.000 claims abstract description 27
- 230000037431 insertion Effects 0.000 claims abstract description 27
- 230000008859 change Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 208000010392 Bone Fractures Diseases 0.000 description 165
- 206010017076 Fracture Diseases 0.000 description 160
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 208000027418 Wounds and injury Diseases 0.000 description 7
- 239000000306 component Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 108010038764 cytoplasmic linker protein 170 Proteins 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 208000006670 Multiple fractures Diseases 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000035876 healing Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000008468 bone growth Effects 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
- 108010038204 cytoplasmic linker protein 190 Proteins 0.000 description 1
- 238000004880 explosion Methods 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
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—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
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- Heart & Thoracic Surgery (AREA)
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Abstract
The embodiment of the invention provides a fracture external fixation clamp and a fracture external fixation system, and relates to the technical field of medical appliances. The embodiment of the invention provides a fracture external fixation clamp which comprises a central insertion shaft, a locking piece, a first clamping leg and a second clamping leg. The first clamp leg and the second clamp leg are both connected to the central inserting shaft, a clamping space for clamping bones is formed between the first clamp leg and the second clamp leg, during use, the first clamp leg and the second clamp leg directly stretch into the body to clamp and fix bones at fracture parts, the operation wound is small, the operation time is short, and after clamping, the volume of the external fracture fixing clamp positioned at the external part is far smaller than that of the existing external fracture fixing medical instrument, so that the influence on later rehabilitation activities of patients can be effectively reduced.
Description
Cross Reference to Related Applications
The present application claims priority from China patent application No. 2021103498803, entitled "external fixation for fracture and System thereof", filed on 1, 03, 31, 2021, and China patent application No. 2021206624042, entitled "external fixation for fracture and System thereof", filed on 1, 03, 31, 2021, which are incorporated herein by reference in their entirety.
Technical Field
The invention relates to the technical field of medical appliances, 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. Internal fixation is to place a steel plate attached to the surface of a bone at a fracture site, fix the steel plate and the bone together by using a screw, and take out the steel plate and the screw after the bone at the fracture site is completely healed. The fixing mode has the advantages of large operation wound, long operation time, long recovery time in the later period and pain of patients who need to undergo two operations. The external fixation commonly used appliances comprise plaster, splints, external fixing frames and the like, and have the advantages of small operation wound, sometimes no operation wound, quick postoperative recovery and reduction of complications. However, the traditional external fixing frame has larger volume, influences the rehabilitation activity of the postoperative patient, and a doctor needs to carefully align the fracture in the operation, so that the operation labor intensity is high, the operation process is complex, and in conclusion, how to make the operation of treating the fracture more convenient is a technical problem to be solved by the technicians in the field at present.
In order to solve the problems, the invention provides an external fracture fixation clamp system, which can be used for rapidly and conveniently treating fracture, has simple operation and small operation wound, and has small volume and does not influence the rehabilitation activity of a patient in the later period.
Disclosure of Invention
The object of the present invention consists, for example, in providing an external fracture fixation clamp and an external fracture fixation system which are able to ameliorate at least one of the above problems of the prior art.
Embodiments of the invention may be implemented as follows:
Embodiments of the present invention provide an external fixation clamp for fracture, comprising 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 bones is formed between the first clamping leg and the second clamping leg bracket; and
The locking piece is used for locking or unlocking the first clamping leg and the second clamping leg;
Wherein, the first clamping leg and the second clamping leg are relatively fixed under the condition that the first clamping leg and the second clamping leg are locked; and 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 inserting shaft so as to change the opening degree of the clamping space.
Optionally, a first ratchet portion is disposed on the first clamping leg, a second ratchet portion is disposed on the second clamping leg, and the first ratchet portion is meshed with the second ratchet portion.
Optionally, the locking member includes a first elastic member for applying pressure directed toward the first clip leg to the second clip leg to engage the first ratchet portion with the second ratchet portion.
Optionally, the fracture external fixation clamp further includes a second elastic element disposed between the first clamping leg and the second clamping leg, and two ends of the second elastic element act on the first clamping leg and the second clamping leg respectively, 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 clamping leg, and a second ratchet part is arranged on the second clamping leg; the first ratchet portion and the second ratchet portion are adapted to be engaged when the locking member is in a locked state, and the second elastic member is adapted to cause the first ratchet portion and the second ratchet portion to 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 part is arranged 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; the two ends of the second elastic piece are respectively positioned in the first mounting groove and the second mounting groove.
Optionally, the locking piece further comprises a locking nut in threaded connection with the central plug shaft; the center insert 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 unidirectional teeth.
Optionally, the first clamping leg includes a first operation portion, a first connection portion, and a first clamping leg that are sequentially connected, where the first connection portion is sleeved with the central insertion shaft, so that the first clamping leg is rotationally connected with the central insertion shaft;
The second clamping leg comprises a second operation part, a second connection part and a second clamping leg which are sequentially connected, and the second connection part is sleeved with the central inserting shaft so that the second clamping leg is rotationally connected with the central inserting shaft;
Wherein the clamping space is formed between the first clamping leg and the second clamping leg; the first operation part and the second operation part are respectively used for being connected with an operation tool to drive the first clamping leg and the second clamping leg to rotate relatively when the operation tool operates the first operation part and the second operation part to rotate relatively.
Optionally, the fracture external fixation clamp further comprises a third clamping leg rotatably connected with the central insertion shaft, and the second clamping leg is positioned between the first clamping leg and the third clamping leg in the axial direction of the central insertion shaft;
When the second clamping legs comprise two second clamping legs, the two second clamping legs are positioned 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 positioned on the other side of the clamping space.
Optionally, a fourth ratchet portion is provided on the third leg, a third ratchet portion is provided on the second 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 blade, the end of the second clamping leg is provided with a second blade, and an opening communicated with the clamping space is formed between the first blade and the second blade.
Optionally, a first operation hole is formed in the first operation part, and the first operation hole is used for being spliced with the surgical tool; the second operation part is provided with a second operation hole which is used for being inserted with the operation tool.
Optionally, the first clamping leg is fixedly connected with the central inserting shaft.
The embodiment of the invention also provides an external fracture fixation system. The fracture external fixation system comprises a connecting rod and at least two fracture external fixation clamps, wherein the connecting rod is connected with at least two fracture external fixation clamps simultaneously so as to fix the at least two fracture external fixation clamps into a whole.
Optionally, the central insertion shaft is provided with a through hole, and the through hole extends along the axial direction of the central insertion shaft; the fracture external fixation clamp further comprises a side hole screw, a side hole communicated with the through hole is formed in the central insertion shaft, the side hole screw is in threaded connection with the side hole, and one end of the side hole screw is located in the through hole and used for locking a connecting rod penetrating through the through hole.
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 fracture external fixation clamps, and threads at two ends of the connecting rod are opposite in rotation direction.
The fracture external fixation clamp and the system thereof of the embodiment of the invention have the beneficial effects that:
the embodiment of the invention provides a fracture external fixation clamp which comprises a central insertion shaft, a locking piece, a first clamping leg and a second clamping leg. The first clamp leg and the second clamp leg are both connected to the central inserting shaft, a clamping space for clamping bones is formed between the first clamp leg and the second clamp leg, during use, the first clamp leg and the second clamp leg directly stretch into the body to clamp and fix bones at fracture parts, the operation wound is small, the operation time is short, and after clamping, the volume of the external fracture fixing clamp positioned at the external part is far smaller than that of the existing external fracture fixing medical instrument, so that the influence on later rehabilitation activities of patients is reduced. The locking piece 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 failure of bone fixation caused by loosening of the fracture external fixation clamp in the use process is avoided; when the first clamping leg and the second clamping leg are loosened, 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 an external fracture fixation system, which comprises the external fracture fixation clamp. Since the external fracture fixation system comprises the external fracture fixation clamp, the external fracture fixation system also 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 that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an assembly structure of a first external fracture fixation clamp according to an embodiment of the present invention;
FIG. 2 is a schematic view of an exploded construction of a first external fracture fixation clamp according to an embodiment of the present invention;
FIG. 3 is a schematic view showing an assembly structure of a second external fixator for fracture according to an embodiment of the present invention;
FIG. 4 is a schematic view of an exploded construction of a second external fracture fixation clamp according to an embodiment of the present invention;
FIG. 5 is a schematic view of a second leg of a second external fracture fixation clamp according to an embodiment of the present invention;
FIG. 6 is a schematic view of an assembled structure of a third external fixator for fracture according to an embodiment of the present invention;
FIG. 7 is a schematic view of a third external fixator for fracture according to an embodiment of the present invention in a second view;
FIG. 8 is a schematic view of a second leg of a third external fracture fixation clamp according to an embodiment of the present invention;
FIG. 9 is a schematic structural view of a first external fracture fixation system according to an embodiment of the present invention;
FIG. 10 is a schematic structural view of a second external fracture fixation system according to an embodiment of the present invention;
FIG. 11 is a schematic structural view of a third external fracture fixation system according to 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 fixation system for fracture; 100-external fixation clamps for fracture; 110-a central plug shaft; 111-through holes; 112-side holes; 113-limiting steps; 114-a threaded portion; 120-first clamping legs; 121-a first operation part; 122-a first operation hole; 123-first connection; 124-a first clamping leg; 125-a first blade portion; 126-a first ratchet portion; 130, 130' -second clamp leg; 131-a second operation section; 132-a second operation hole; 133-a second connection; 134-a second clamping leg; 135-a second blade; 136-a second ratchet portion; 137-a third ratchet portion; 140-third clamp leg; 141-a third operation section; 142-a third connection; 143-third clamping legs; 144-fourth ratchet portions; 150-locking piece; 151-lock nut; 152-a first elastic member; 161-clamping space; 162-opening; 163-side hole screw; 170-a first fracture external fixation clip; 180-a second fracture external fixation clip; 190-third fracture external fixation clip; 191-a second elastic member; 192-a second mounting groove; 200-connecting rods; 211-screwing head; 212-a first threaded rod; 213-a second threaded rod.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the 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 invention, as 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 made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a 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 a schematic diagram of an assembly structure of a first external fracture fixation clamp 170 according to this embodiment, and fig. 2 is a schematic diagram of an explosion structure of the first external fracture fixation clamp 170 according to this embodiment. Referring to fig. 1 and 2 in combination, the present embodiment provides an external fixation clamp 100 for fracture.
The fracture external fixation clip 100 includes a central insertion shaft 110, a locking member 150, a first leg 120, and a second leg 130. The first clamping leg 120 and the second clamping leg 130 are both connected to the central inserting shaft 110, and a clamping space 161 for clamping bones is formed between the first clamping leg 120 and the second clamping leg 130, when the bone fracture external fixation clamp is used, the first clamping leg 120 and the second clamping leg 130 directly extend into a body to clamp and fix bones at fracture parts, the bone fracture external fixation clamp is convenient to use, small in operation wound and short in operation time, and meanwhile after clamping, the volume of the external fracture external fixation clamp 100 positioned at the external part is far smaller than that of the existing external fracture external fixation medical instrument, so that the influence on the later rehabilitation activities of patients is reduced. The locking member 150 is used for locking or unlocking the first clamping leg 120 and the second clamping leg 130, and 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 failure of bone fixation caused by loosening of the fracture external fixation clamp 100 in the use process is avoided; when the first and second legs 120 and 130 are released, the first and second legs 120 and 130 may be rotated relative to each other to change the opening degree of the clamping space 161.
The external fracture fixation clip 100 will be further described by taking the structure of the first external fracture fixation clip 170 according to the present embodiment as an example:
Referring to fig. 1 and 2 in combination, in the present embodiment, the central plug 110 is a cylindrical rod-shaped member, and a through hole 111 penetrating the central plug 110 along the axial direction of the central plug 110 is disposed therein, i.e. the axis of the central plug 110 coincides with the axis of the through hole 111. The first and second legs 120 and 130 are rotatable about the axis of the through hole 111 with respect to the center plug shaft 110, respectively. Since the through holes 111 are provided, the plurality of fracture external fixation clips 100 are integrally connected by the connecting rod 200 by penetrating the connecting rod 200 into the through holes 111 of the plurality of fracture external fixation clips 100, and the coaxial arrangement of the central insertion shafts 110 of the plurality of fracture external fixation clips 100 is ensured.
In this embodiment, the first clamping leg 120 includes a first operation portion 121, a first connection portion 123, and a first clamping leg 124 that are sequentially connected, where the first connection portion 123 is sleeved with the central plug shaft 110, so that the first clamping leg 120 is rotationally connected with the central plug shaft 110. Specifically, the first connection portion 123 has a ring shape, and is formed with a first connection hole through which the central shaft 110 is inserted, thereby connecting the first clip leg 120 to the central shaft 110.
Optionally, the first clamping leg 120 is fixedly connected to the central plug shaft 110. Specifically, after the central insertion shaft 110 is inserted into the first connection hole, the first clamping leg 120 is welded and fixed to the central insertion shaft 110, so that the number of moving parts included in the whole fracture external fixation clamp 100 is reduced. It will be appreciated that in other embodiments, the first clamping leg 120 may be movably connected to the central plug shaft 110, or the first clamping leg 120 may be fixedly connected to the central plug shaft 110 in other manners, for example, the first clamping leg 120 may be integrally formed with the central plug shaft 110, as required.
Similarly, the second clamping leg 130 includes a second operating portion 131, a second connecting portion 133, and a second clamping leg 134, which are sequentially connected. The second connecting portion 133 is sleeved on the central inserting shaft 110, so that the second clamping leg 130 is rotatably connected with the central inserting shaft 110. Specifically, the second connection portion 133 is annular, and has a second connection hole formed therein, and the central shaft 110 is disposed through the second connection hole, so as to movably connect the second leg 130 to the central shaft 110. After connection, the second clamping leg 130 can rotate around the axis of the central plug-in shaft 110, so that when the second clamping leg 130 rotates relative to the central plug-in shaft 110, the second clamping leg 130 rotates relative to the first clamping leg 120, and the second clamping leg 130 can slide relative to the central plug-in shaft 110 around the axial direction of the central plug-in shaft 110.
The first clamping leg 124 and the second clamping leg 134 are each arc-shaped, and the first clamping leg 124 and the second clamping leg 134 are disposed opposite to each other, thereby forming a clamping space 161 for clamping bone between the first clamping leg 124 and the second clamping leg 134. The first and second operating parts 121 and 131 are respectively connected to a surgical tool (not shown) to drive the first and second clamping legs 124 and 134 to rotate relatively when the surgical tool manipulates the first and second operating parts 121 and 131 to rotate relatively, thereby changing the size of the clamping space 161 formed between the first and second clamping legs 124 and 134 and thus achieving clamping or releasing of bone. Alternatively, the surgical tool is a surgical clamp, through which the first and second clamping legs 120 and 130 are operated, thereby clamping or releasing the bone.
Specifically, when the first and second operating parts 121 and 131 are relatively rotated under the manipulation of the surgical tool, the first and second clamping legs 120 and 130 are integrally relatively rotated, and simultaneously when the first and second operating parts 121 and 131 are rotated in a relatively approaching direction by the surgical tool, the first and second clamping legs 124 and 134 are relatively approaching, and the clamping space 161 is relatively narrowed, 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 a relatively distant direction by the surgical tool, the first and second clamping legs 124 and 134 are relatively distant, and the clamping space 161 is relatively enlarged, so that the bone located in the clamping space 161 can be released or the bone located outside the clamping space 161 can be introduced into the clamping 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 inserted into a surgical tool, the second operation portion 131 is provided with a second operation hole 132, and the second operation hole 132 is used for being inserted into the surgical tool, so that the first operation portion 121 and the second operation portion 131 can be conveniently assembled and disassembled with the surgical tool, and the operation is more convenient. Specifically, the first operation portion 121 and the second operation portion 131 are both cylindrical, the first operation hole 122 is disposed coaxially with the first operation portion 121, and the axis of the first operation hole 122 is parallel to the axis of the center plug shaft 110; the second operation hole 132 is disposed coaxially with the second operation portion 131, and an axis of the second operation hole 132 is parallel to an axis of the center plug shaft 110.
Meanwhile, a first blade portion 125 is provided at an end of the first clamping leg 124 remote from the first connection portion 123, that is, a first blade portion 125 is provided at an end of the first clamping leg 124; the first of the second clamping leg 134 remote from the second connection portion 133 is provided with a second blade portion 135, i.e. the end of the second clamping leg 134 is provided with a second blade portion 135. When the locking member 150 locks the first and second legs 120 and 130, the tip of the first blade 125 is disposed directly opposite the tip of the second blade 135, i.e., the line between the tip of the first blade 125 and the tip of the second blade 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 are rotated relative to each other, the distance between the first blade 125 and the second blade 135 changes, and the size of the opening 162 changes.
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 the tissues such as skin, internal muscles and the like, 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 of the fracture external fixation clamp 100 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 tangential plane provided at the end of the first clamping leg 124; the second blade 135 is a sharp blade structure formed by a diagonal surface provided at the end of the second clamping leg 134.
With continued reference to fig. 1 and 2, in this embodiment, the external fracture fixation clip 100 further includes a locking member 150, and the locking member 150 cooperates with the first leg 120 and/or the second leg 130 to lock or unlock the first leg 120 and the second leg 130. In the case that the first and second legs 120 and 130 are locked, the first and second legs 120 and 130 are relatively fixed, i.e., the first and second legs 120 and 130 cannot relatively rotate at this time; in the case where the first and second legs 120 and 130 are released, the first and second legs 120 and 130 can be rotated relatively so that the distance between the first and second blade parts 125 and 135 is changed, thereby realizing a change in the opening degree of the clamping space 161. In the description of the present embodiment, the "opening degree of the clamping space 161" refers to the size of the opening 162 of the clamping space 161.
Optionally, the locking member 150 includes a locking nut 151 screwed to the central shaft 110, and the central shaft 110 is provided with a limiting step 113, and the first and second legs 120 and 130 are installed between the limiting step 113 and the locking nut 151. Specifically, the center plug 110 has a structure similar to a bolt, and has a cylindrical rod member, one end peripheral surface of which protrudes 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 connected with a lock nut 151 through the screw portion 114. Further, an anti-wrench plane is provided on the limiting step 113, and when the lock nut 151 is screwed, the plane on the limiting step 113 can be clamped by a wrench, so that the center insert shaft 110 is prevented from synchronously rotating along with the lock nut 151.
The part of the rod member between the thread part 114 and the limiting step 113 is a polished rod part, and the first clamping leg 120 and the second clamping leg 130 are sleeved at the polished rod part. When the lock nut 151 is tightened, the lock nut 151 applies a force directed toward the limit step 113 to the first and second legs 120 and 130, thereby clamping the first and second legs 120 and 130 between the lock nut 151 and the limit step 113 to lock the first and second legs 120 and 130.
Further, the locking member 150 further includes a first elastic member 152 disposed between the second leg 130 and the locking nut 151, the first elastic member 152 for applying 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 limiting step 113, the first clamping leg 120, the second clamping leg 130, the first elastic member 152, and the lock nut 151 are sequentially disposed along the axial direction of the center plug shaft 110. When the lock nut 151 is tightened, the first elastic member 152 is elastically deformed by the pressing force applied from the lock nut 151, and applies a force to the second leg 130 to move toward the first leg 120, thereby pressing the second leg 130 against the first leg 120 and 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 clamp leg 130 by the first elastic member 152 is reduced, and the first clamp leg 120 and the second clamp leg 130 can generate relative rotational movement 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 structure of the first elastic member 152 may be specifically configured according to needs, 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, first ratchet portion 126 is disposed on first coupling portion 123 and second ratchet portion 136 is disposed on second coupling portion 133. When the first and second legs 120 and 130 are rotated relatively by manipulating the first and second manipulating parts 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 ratchets of the first ratchet part 126 and the second ratchet part 136 are separated from each other, the first clamp leg 120 and the second clamp leg 130 generate relative rotation, and after the first clamp leg 120 and the second clamp leg 130 relatively rotate by an angle corresponding to a central angle of the ratchets, the first ratchet part 126 and the second ratchet part 136 are meshed with each other again under the elastic force of the first elastic member 152, if the first clamp leg 120 and the second clamp leg 130 continue to receive the rotation force applied by the surgical tool at this time, the above process is repeated until the first clamp leg 120 and the second clamp leg 130 rotate to the required position, so that during the adjustment process, the first ratchet part 126 and the second ratchet part 136 continuously repeat the meshing and separating process, and the second clamp leg 130 continuously jumps in the axial direction relative to the first clamp leg 120.
Referring again to fig. 2 in conjunction with fig. 1, in this embodiment, the external fracture fixation clip 100 further includes a side hole screw 163. The center insert shaft 110 is provided with a side hole 112 communicated with the through hole 111, the side hole screw 163 is in threaded connection with the side hole 112, and one end of the side hole screw 163 is positioned in the through hole 111 so as to be used for locking a screw rod penetrating through the through hole 111, and further, relative displacement between the connecting rod 200 and the center insert shaft 110 is avoided in the use process. Specifically, the axis of the side hole 112 extends in the radial direction of the through hole 111, and in use, the connection rod 200 is inserted into the through hole 111 of the central insertion shaft, and the side hole screw 163 is screwed to the side hole 112, and as the side hole screw 163 is screwed, one end of the side hole screw 163 gradually extends into the through hole 111 and abuts against the connection rod 200, thereby locking the connection rod 200 to the central insertion shaft 110.
According to the fracture external fixation clamp 100 provided in this embodiment, the working principle of the fracture external fixation clamp 100 is:
In use, the fracture external fixation clamp 100 is placed outside a bone to be fixed according to the requirement, and the surgical tool is connected with the first operation part 121 and the second operation part 131, so that 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, thereby placing the bone into the clamping space 161, and then the surgical tool is operated to drive the first clamping leg 120 and the second frame body to rotate reversely, so that the opening of the clamping space 161 is reduced, the first blade part 125 and the second blade part 135 pierce the skin into the body, so that the first clamping leg 124 and the second clamping leg 134 are clamped and fixed on the bone surface, and meanwhile, in the clamping process, medical staff can adjust the puncture positions of the first blade part 125 and the second blade part 135 according to experience, so as 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 piece 152 is elastically deformed, the first clamping leg 124 and the second clamping leg 134 are pressed between the first elastic piece 152 and the limiting step 113, and simultaneously, the meshing effect of the first ratchet part 126 and the second ratchet part 136 is matched, so that the first clamping leg 124 and the second clamping leg 134 can be effectively prevented from being relatively displaced, and further the reliability of bone clamping is ensured.
The above process is repeated to clamp the fracture external fixation clamp 100 at other fractured bones, then the connecting rod 200 is sequentially inserted into the through holes 111 of the fracture external fixation clamp 100, and the connecting rod 200 is fixed with the central insertion shaft 110 through the side hole screws 163 on the central insertion 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 healing process are avoided.
The external fixation clamp 100 for fracture provided in this embodiment has at least the following advantages:
The fracture external fixation clamp 100 according to the present embodiment is configured to directly clamp a bone by inserting the clamping legs into the body, and then locking the first clamping leg 120 and the second clamping leg 130 by the locking member 150, so as to fix the first clamping leg 120 and the second clamping leg 130 together, and simultaneously, the first ratchet portion 126 and the second ratchet portion 136 on the first clamping leg 120 and the second clamping leg 130 are engaged with each other, so that the possibility of relative displacement of the first clamping leg 120 and the second clamping leg 130 in the locked condition is further avoided. The fracture external fixation clamp 100 can rapidly and conveniently treat fracture, is simple in operation and small in wound, is beneficial to relieving pain of a patient, is small in size, and can effectively avoid influencing rehabilitation activities of the later stage of the patient.
Example 2
Fig. 3 is a schematic diagram illustrating an assembly structure of a second external fracture fixation clamp 180 according to the present embodiment, fig. 4 is a schematic diagram illustrating an exploded structure of the second external fracture fixation clamp 180 according to the present embodiment, and fig. 5 is a structure of a second leg 130' of the second external fracture fixation clamp 180 according to the present embodiment. Referring to fig. 1-5 in combination, a second external fracture fixation clamp 180 is provided in this embodiment, and the second external fracture fixation clamp 180 has substantially the same structure as the first external fracture fixation clamp 170 provided in embodiment 1, and the differences are not repeated, but include 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 inserting shaft 110, so as to be rotationally connected with the central inserting shaft 110, and can slide relative to the central inserting shaft 110 along the axial direction of the central inserting shaft 110 under the action of external force. The first leg 120, the second leg 130', and the third leg 140 are sequentially disposed along the axial direction of the center plug 110, i.e., the second leg 130' is located between the first leg 120 and the third leg 140 in the axial direction of the center plug 110, thus disposing the first elastic member 152 between the third leg 140 and the locking 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 fracture fixation clamp 180 has a different structure from the second leg 130 of the first external fracture fixation clamp 170, specifically, the second leg 130 of the first external fracture fixation clamp 170 includes one second clamping leg 134, and the second leg 130' of the second external fracture fixation clamp 180 includes two second clamping legs 134. In other words, the second leg has different technical states in the first fracture external fixation clamp 170 and the second fracture external fixation clamp 180.
The two second clamping legs 134 of the second clamping leg 130' are disposed at intervals along the axial direction of the second connecting portion 133, so that when the second connecting portion 133 is sleeved on the central plug shaft 110, the two second clamping legs 134 are disposed at intervals along the axial direction of the central plug shaft 110 and are located at the same side of the clamping space 161. Two pairs of clamping legs distributed along the axial direction of the center insert shaft 110 are thus formed, and the tips of the clamping legs of each pair are disposed in a facing relationship. Two pairs of clamping legs can increase the clamping area, further guarantee the clamping 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 the surgical tool can be simultaneously inserted into the first operation hole 122 and the third operation hole, thereby driving the first clamping leg 120 and the third clamping leg 140 to synchronously rotate.
Further, a fourth ratchet portion 144 is provided on the third leg 140, a third ratchet portion 137 is provided on the second leg 130', and the third ratchet portion 137 is engaged with the fourth ratchet portion 144. Specifically, the fourth ratchet portion 144 is disposed on the third connecting portion 142, the third ratchet portion 137 is disposed on the second connecting portion 133, and the third ratchet portion 137 is located at a side of the second connecting portion 133 near the third connecting portion 142.
Example 3
Fig. 6 is a schematic structural view of a third external fracture fixation clamp 190 according to the present embodiment at a first viewing angle, fig. 7 is a schematic structural view of the third external fracture fixation clamp 190 according to the present embodiment at a second viewing angle, and fig. 8 is a schematic structural view of a second leg 130 in the third external fracture fixation clamp 190 according to the present embodiment. Referring to fig. 1-8 in combination, a third external fracture fixation clamp 190 is provided in this embodiment, and the third external fracture fixation clamp 190 has substantially the same structure as the first external fracture fixation clamp 170 provided in embodiment 1, and the difference is that the positions of the elastic members are different.
Specifically, the elastic member in the third fracture external fixation clamp 190 is a second elastic member 191, the second elastic member 191 is disposed between the first and second clamp legs 120 and 130, and both ends of the second elastic member 191 act on the first and second clamp legs 120 and 130, respectively, so that the first and second clamp legs 120 and 130 have a tendency to separate from each other, such that when the locking member 150 does not clamp the first and second clamp legs 120 and 130 completely, the first ratchet portion 126 on the first clamp leg 120 and the second ratchet portion 136 on the second clamp leg 130 remain separated under the action of the second elastic member 191, and simultaneously, when the locking member 150 is in the locked state, the second elastic member 191 is compressed under the locking force, and the first ratchet portion 126 is engaged with the second ratchet portion 136.
Optionally, the second elastic member 191 is a coil spring, and it is understood that in other embodiments, the structural type of the second elastic member 191 may be set according to the requirement, and an elastic force can be applied to the first leg 120 and the second leg 130, so that the first leg 120 and the second leg 130 have a tendency to be far away from each other.
Further, the first leg 120 is provided with a first mounting groove, the first ratchet portion 126 is provided around the first mounting groove, and similarly, the second leg 130 is provided with a second mounting groove 192, and the second ratchet portion 136 is provided around the second mounting groove 192. The both ends of second elastic component 191 are located first mounting groove and second mounting groove 192 respectively, and are spacing through first mounting groove and second mounting groove 192 to the both ends of second elastic component 191 like this, guarantee the positional stability of second elastic component 191, simultaneously, first mounting groove and second mounting groove 192 can form the space that holds second elastic component 191, avoid second elastic component 191 to cause the influence to the meshing of first ratchet portion 126 and second ratchet portion 136.
Alternatively, the first ratchet portion 126 and the second ratchet portion 136 are unidirectional teeth, such that when the first ratchet portion 126 and the second ratchet portion 136 are engaged, the relative rotation of the first ratchet portion 126 and the second ratchet portion 136 in one direction is locked, and only the relative rotation in the other direction is possible, specifically, when in use, the direction of the relative rotation of the first ratchet portion 126 and the second ratchet portion 136 that is locked after the engagement is used as the direction in which the first clamp leg 120 and the second clamp leg 130 are released, and the direction of the relative rotation of the first ratchet portion 126 and the second ratchet portion 136 that is rotatable after the engagement is used as the direction in which the first clamp leg 120 and the second clamp leg 130 are clamped, so that the third fracture external fixation clamp 190 can be effectively prevented from loosening.
The third external fixation clamp for fracture 190 according to example 3 is operated as follows:
In operation, the third fracture external fixation clamp 190 is clamped to the bone to be clamped by the surgical tool, and at this time, the first clamping leg 120 and the second clamping leg 130 are kept separated under the action of the elastic force exerted by the second elastic member 191 due to the second elastic member 191, so that the first ratchet portion 126 and the second ratchet portion 136 are separated from each other, and the first clamping leg 120 and the second clamping leg 130 can be opened or closed at will under the action of external force, so that the operation is convenient.
When the medical staff finds a proper position to clamp the third fracture external fixation clamp 190 on the bone and keep the third fracture external fixation clamp 190 at a certain clamping force on the bone, the locking nut 151 is rotated by the other hand, and the first clamping leg 120 and the second clamping leg 130 are forced to be close to each other under the compression action of the locking nut 151, so that the second elastic piece 191 is pressed to compress, and the first ratchet part 126 and the second ratchet part 136 are contacted and meshed.
Because the first ratchet portion 126 and the second ratchet portion 136 are unidirectional teeth, when the first ratchet portion 126 is engaged with the second ratchet portion 136, the movement of the first clamping leg 120 and the second clamping leg 130, which rotate to the open state, is locked, so that the third fracture external fixation clamp 190 keeps clamping the bone even if the surgical tool is loosened, and a continuous clamping force is applied to the bone, thereby avoiding the problem of loosening in the subsequent process.
Example 4
Fig. 9 is a schematic structural view of a first external fracture fixation system 10 according to the present embodiment. Referring to fig. 9, the present embodiment also provides an external fracture fixation system 10, wherein the external fracture fixation system 10 adopts the external fracture fixation clamp as a core component, specifically, it includes 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 by the connecting rod 200. When in use, the connecting rod 200 is simultaneously penetrated through the through holes 111 of the at least two fracture external fixation clamps 100, and the connecting rod 200 and the central insertion shaft 110 are fixed through the side hole screws 163 on the fracture external fixation clamps 100, so that the at least two fracture external fixation clamps 100 are fixed into a whole, further the fixation of fracture broken bones can be effectively realized, and further the condition of relative displacement in the healing process is avoided.
Specifically, in the external fracture fixation system 10 shown in fig. 9, the number of external fracture fixation clamps 100 is two, and both external fracture fixation clamps 100 are the first external fracture fixation clamps 170. When in use, the two external fracture fixation clamps 100 are respectively clamped on two broken bones at the fracture position, and then the connecting rod 200 sequentially passes through the through holes 111 of the two external fracture fixation clamps 100, so that the two external fracture fixation clamps 100 are fixed into a whole, and relative displacement such as relative rotation and the like of the two external fracture fixation clamps 100 in the bone healing growth process is avoided.
It should be noted that, in the first external fracture fixation system 10 provided in this embodiment, the number of external fracture fixation clips 100 is two, and the two external fracture fixation clips 100 are each a first external fracture fixation clip 170 (as shown in fig. 1), it will be understood that in other embodiments, the structure and type of the external fracture fixation clips 100 may be set according to the requirement, for example, when the fracture of the bone is three, the number of external fracture fixation clips 100 may be set to three, and the three external fracture fixation clips 100 are respectively clamped and fixed on the three broken bones. Meanwhile, the structure of the external fracture fixation clip 100 in the external fracture fixation system 10 may be specifically set according to the needs, for example, the second external fracture fixation system 10 provided in the present embodiment shown in fig. 10 includes two external fracture fixation clips 100 that are both the second external fracture fixation clip 180 (shown in fig. 3), or the third external fracture fixation system 10 provided in the present embodiment shown in fig. 11 includes two external fracture fixation clips 100 that are each a first external fracture fixation clip 170 (shown in fig. 1) and a second external fracture fixation clip 180 (shown in fig. 3), or the fourth external fracture fixation system 10 provided in the present embodiment shown in fig. 12 includes two external fracture fixation clips 100 that are both the third external fracture fixation clip 190 (shown in fig. 6 and fig. 7).
Further, in the first external fracture fixation system 10 shown in fig. 9, the connection rod 200 is a k-wire, which has a smooth surface, so that the central insertion shaft 110 is locked and fixed with the connection rod 200 by the side hole screw 163 installed on the central insertion shaft 110 of the first external fracture fixation clip 170.
It will be appreciated that in other embodiments, other means of connecting the connecting rod 200 to the external fracture fixation clip 100 may be used.
Fig. 13 is a schematic view showing an exploded structure of the fourth fracture external fixation system 10 according to the present embodiment. In the structures shown in fig. 12 and 13, the axial both ends of the connection rod 200 are provided with threads, respectively, that is, the connection rod 200 has a first threaded rod 212 and a second threaded rod 213 at the axial both ends, respectively. The central insertion shaft 110 of the external fracture fixation clamp 100 has a screw hole screw-coupled with one end of the connection rod 200, so that the first and second screw rods 212 and 213 are respectively screw-coupled with the corresponding external fracture fixation clamps 100 to be stable, thereby achieving the coupling fixation of the two external fracture fixation clamps 100. And the first threaded rod 212 is inversely threaded to the second threaded rod 213, so that when the connection rod 200 is rotated, one of the first threaded rod 212 and the second threaded rod 213 is unscrewed and the other of the first threaded rod 212 and the second threaded rod 213 is screwed. Obviously, the through hole 111 may be configured as a threaded hole in the first external fracture fixation clamp 170 and the second external fracture 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 hole may be configured as a smooth through hole in the third external fracture fixation clamp 190, and the locking fixation of the central insertion shaft 110 and the k-wire may be achieved by providing a side hole screw on the side surface.
Further, the connection rod 200 further includes a screwing head 211 located between the first threaded rod 212 and the second threaded rod 213, and the rotation of the connection rod 200 is manipulated by operating the screwing head 211. Specifically, in operation, one of the external fracture fixation clamps 100 is first fixed to the bone, and then the length-adapted connection rod 200 is selected, and the first threaded rod 212 of the connection rod 200 is screwed into the fixed external fracture fixation clamp 100. Then another external fracture fixation clamp 100 is fixed, after the fixation, the connecting rod 200 is reversely screwed, so that the first threaded rod 212 is screwed out of the external fracture fixation clamp 100 fixed firstly, and the second threaded rod 213 is screwed into the external fracture fixation clamp 100 fixed later, thus the two external fracture fixation clamps 100 can be fixed together, and the operation is simple, convenient and quick.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. An external fixation clamp for fracture, comprising:
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 bones is formed between the first clamping leg and the second clamping leg; and
The locking piece is used for locking or unlocking the first clamping leg and the second clamping leg;
Wherein, the first clamping leg and the second clamping leg are relatively fixed under the condition that the first clamping leg and the second clamping leg are locked; the first clamping leg and the second clamping leg can relatively rotate around the axis of the central inserting shaft under the condition that the first clamping leg and the second clamping leg are loosened so as to change the opening degree of the clamping space; the first clamping leg is provided with a first ratchet part, the second clamping leg is provided with a second ratchet part, and the first ratchet part is meshed with the second ratchet part; the locking member comprises a first elastic member for applying pressure directed to the first clip leg to the second clip leg so as to engage the first ratchet portion with the second ratchet portion; the fracture external fixation clamp further comprises a second elastic piece arranged between the first clamping leg and the second clamping leg, and two ends of the second elastic piece 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 mutual separation trend; the first ratchet portion and the second ratchet portion are adapted to be engaged when the locking member is in a locked state, and the second elastic member is adapted to cause the first ratchet portion and the second ratchet portion to have a tendency to be separated from each other.
2. The external fracture fixation clip of claim 1, wherein the first leg is provided with a first mounting groove, the first ratchet portion being 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; the two ends of the second elastic piece are respectively positioned in the first mounting groove and the second mounting groove.
3. The external fracture fixation clip of claim 1 or 2, wherein the locking member further comprises a locking nut threadably coupled to the central plug; the center insert 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.
4. The external fracture fixation clip of claim 1, wherein the first and second ratchet portions are unidirectional teeth.
5. The external fixation clamp for fracture according to claim 1, wherein the first clamping leg comprises a first operation part, a first connection part and a first clamping leg which are sequentially connected, and the first connection part is sleeved with 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 connection part and a second clamping leg which are sequentially connected, and the second connection part is sleeved with the central inserting shaft so that the second clamping leg is rotationally connected with the central inserting shaft;
Wherein the clamping space is formed between the first clamping leg and the second clamping leg; the first operation part and the second operation part are respectively used for being connected with an operation tool to drive the first clamping leg and the second clamping leg to rotate relatively when the operation tool operates the first operation part and the second operation part to rotate relatively.
6. The external fracture fixation clip of claim 5, further comprising a third leg rotatably connected to the central hub, and wherein the second leg is located between the first leg and the third leg in the axial direction of the central hub; 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 legs comprise two second clamping legs, the two second clamping legs are positioned 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 positioned on the other side of the clamping space.
7. The external fixator for fracture according to claim 5, wherein the end of the first clamping leg is provided with a first blade portion and the 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.
8. The external fixator for fracture according to claim 5, wherein the first operation portion is provided with a first operation hole for inserting the surgical tool; the second operation part is provided with a second operation hole which is used for being inserted with the operation tool.
9. The external fracture fixation clip of claim 1, wherein the first leg is fixedly connected to the central hub.
10. A fracture external fixation system comprising a connecting rod and at least two fracture external fixation clamps according to any one of claims 1-9, the connecting rod being connected to at least two of the fracture external fixation clamps simultaneously to fix at least two of the fracture external fixation clamps as one.
11. The external fracture fixation system of claim 10, wherein the central plug has a through bore extending axially of the central plug; the fracture external fixation clamp further comprises a side hole screw, a side hole communicated with the through hole is formed in the central insertion shaft, the side hole screw is in threaded connection with the side hole, and one end of the side hole screw is located in the through hole and used for locking a connecting rod penetrating through the through hole.
12. The external fracture fixation system of claim 10, wherein the central plug has a threaded bore extending axially of the central plug; the connecting rod is used for being in threaded connection with two adjacent fracture external fixation clamps, and threads at two ends of the connecting rod are opposite in rotation direction.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120662404 | 2021-03-31 | ||
| CN202110349880.3A CN112914700A (en) | 2021-03-31 | 2021-03-31 | External fixation clamp for fracture and system thereof |
| CN2021206624042 | 2021-03-31 | ||
| CN2021103498803 | 2021-03-31 |
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| Publication Number | Publication Date |
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| CN114010291A CN114010291A (en) | 2022-02-08 |
| CN114010291B true CN114010291B (en) | 2024-05-24 |
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| CN202111317056.6A Active CN114010291B (en) | 2021-03-31 | 2021-11-09 | External fracture fixation clamp and system thereof |
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Families Citing this family (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 |
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| CN114010291A (en) | 2022-02-08 |
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