CN113100872A - Fixed guiding device - Google Patents
Fixed guiding device Download PDFInfo
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- CN113100872A CN113100872A CN202110495674.3A CN202110495674A CN113100872A CN 113100872 A CN113100872 A CN 113100872A CN 202110495674 A CN202110495674 A CN 202110495674A CN 113100872 A CN113100872 A CN 113100872A
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- 238000001125 extrusion Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 210000002445 nipple Anatomy 0.000 claims 2
- 210000000988 bone and bone Anatomy 0.000 abstract description 9
- 238000004080 punching Methods 0.000 abstract description 9
- 238000005553 drilling Methods 0.000 abstract description 6
- 230000002980 postoperative effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 238000012800 visualization 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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8866—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices for gripping or pushing bones, e.g. approximators
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Abstract
The invention provides a fixed guide device, which comprises a base body, a guide rod and a guide rod, wherein the base body is used for connecting other components; the guide rod is arranged in the base body and used for fixing the fracture block; the arc-shaped guider and the guide rod are arranged on the same plane, are connected with one end of the base body through an elastic telescopic structure, are matched with the guide rod to fix the fracture block and guide the drilling; the friction fixing structure is arranged at the other end of the base body and is used for fixing the guide rod through friction force; and a friction driving structure which is arranged in the base body and moves the guide rod through friction force. When the fracture of a patient needs to be fixed, the fixing and guiding device enables the guide rod and the arc-shaped guider to be respectively arranged at two ends of the fracture block, and drives the friction driving structure to move the guide rod, so that the fracture block can be firmly fixed with the non-fractured bone block; thereby carry out good interim fixed to the fracture piece to for punching provide accurate direction, reduced the operation risk, resume to provide good basis for patient's postoperative.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a fixed guide device.
Background
Fracture refers to a disease in which the integrity of bone is impaired or continuously lost due to trauma or pathology. It is common to children and the elderly, and also occurs in young people. After the fracture occurs, most patients can recover the function through timely and effective treatment, and a few patients can possibly leave sequelae with different degrees.
To better restore the integrity and continuity of bone, the fracture site is typically reduced using an open surgical approach that allows direct visualization of the fracture site. In the operation, the fracture part needs to be reset, then the fracture block is temporarily fixed, then the hole is drilled, and finally the fracture block and the normal bone body are fixed together by using a steel needle or a screw. However, when the final fixation is performed, the fracture piece is often moved again due to the temporary fixation weakness, which makes the fixation difficult.
At present, the bone forceps are generally used for temporarily fixing a fracture block clinically, but the bone forceps need a doctor to apply force to hold the fracture block all the time in the use process, the fracture block can be shifted due to slight looseness or vibration caused in drilling, the fracture block needs to be reset again and fixed again after being shifted, and time and labor are wasted.
In addition, when drilling, because of lack of accurate direction, the doctor can only punch holes by experience, often can appear some deviations to injure tissues such as nearby nerve, blood vessel, muscle and meat, and probably because of the fixed effect of the not positive influence of the direction of punching, even need punch again.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical defects that no tool specially used for temporarily fixing a fracture block and providing accurate guide for punching is available in the prior art, so that the temporary fixing is time-consuming and labor-consuming, and the punching cannot be accurately controlled, thereby providing a fixing and guiding device which can stably and temporarily fix the fracture block and a normal bone body together and has the function of accurate guide for punching.
To this end, the invention provides a method comprising:
the base body is provided with an inner cavity, a first opening and a second opening, wherein the first opening and the second opening are communicated with the inner cavity and are oppositely arranged;
the guide rod is provided with a hollow inner cavity extending along the axial direction of the guide rod and is installed on the base body in a pluggable mode through the first opening and the second opening;
the arc-shaped guider is arranged outside the first opening through a connecting structure and is provided with a positioning tip end opposite to the end part of the guide rod penetrating out of the first opening;
the friction fixing structure is arranged outside the second opening and used for fixing the guide rod through extrusion friction force;
and the friction driving structure is arranged on the base body and used for driving the guide rod to overcome the friction force of the friction fixing structure through friction force and move forwards.
Preferably, the friction fixing structure comprises a friction fixing plate, which is provided with a fixing through hole for the guide rod to pass through;
one end of the friction fixing plate, which is positioned above the fixing through hole, is rotatably arranged on the base body, the other end of the friction fixing plate, which is positioned below the fixing through hole, is connected with the base body through a first elastic piece, and a pressing section is formed at the tail end of the friction fixing plate;
when the first elastic piece is in an extended state, the friction fixing plate is pushed to rotate to a set position relative to the base body, and the inner wall of the fixing through hole is in pressing contact with the guide rod;
when the first elastic piece is in a compressed state by pressing the friction fixing plate, the inner wall of the fixing through hole is released from contact with the guide rod.
As a preferable scheme, two opposite side surfaces of the guide rod are vertical surfaces which are parallel to each other, and the opposite top surface and the bottom surface are arc-shaped surfaces which are convex outwards; two opposite side surfaces of the fixing through hole are vertical surfaces which are parallel to each other, and the opposite top surface and the bottom surface are arc surfaces which are convex outwards.
As a preferable scheme, an inserting plate is formed above the friction fixing plate, an inserting hole is formed in the base body, and the inserting plate is inserted into the inserting hole to form a rotatable connection;
or an inserting plate is formed above the friction fixing plate, a rotating shaft is formed on the base body, and the inserting plate is sleeved on the rotating shaft to form rotatable connection.
As a preferable aspect, the friction driving structure includes:
the friction driving plate is positioned in the inner cavity, and the middle part of the friction driving plate is provided with a driving through hole for the guide rod to pass through;
one end of the second elastic piece is abutted against the friction driving plate, the other end of the second elastic piece is abutted against the inner wall of the inner cavity, and the middle part of the second elastic piece is provided with a second elastic piece inner cavity for the guide rod to pass through;
and the driving handle is rotatably arranged on the base body and is used for shifting the friction driving plate to act.
As a preferable scheme, two opposite side surfaces of the guide rod are vertical surfaces which are parallel to each other, and the opposite top surface and the bottom surface are arc-shaped surfaces which are convex outwards; two opposite side surfaces of the driving through hole are vertical surfaces which are parallel to each other, and the opposite top surface and the bottom surface are arc surfaces which are convex outwards.
As a preferable scheme, a limiting groove is arranged on the inner wall of the inner cavity for abutting against the friction driving plate and at the position opposite to the upper end and the lower end of the friction driving plate.
As a preferable scheme, the limiting device is used for abutting against the inner wall of the inner cavity of the friction driving plate, and a limiting protrusion is arranged on the friction driving plate opposite to the limiting groove;
when the second elastic piece is in an extending state, the limiting protrusion is matched and inserted with the limiting groove, and the inner wall of the driving through hole is not in contact with the guide rod inserted into the base body.
As a preferred aspect, the arc guide comprises:
a connection section having a connection fitting mounted on the base body by a connection structure;
one end of the extending section is connected with the connecting section, and the other end of the extending section extends outwards;
and one end of the positioning section is connected with the other end of the extension section, and the other end of the positioning section is provided with the positioning tip.
As a preferable aspect, the connection structure includes:
the cylindrical block is fixedly arranged at the first opening position, and the middle part of the cylindrical block is provided with a through cavity for the guide rod to extend out;
the annular groove track is arranged on the outer side wall of the cylindrical block in a surrounding mode;
at least one positioning blind hole is formed in the annular groove track;
the elastic telescopic structure is arranged on the connecting joint and is provided with a positioning column; the positioning column has a first state and a second state;
when the positioning column is in a first state, the positioning column can be inserted into the positioning blind hole, and the arc-shaped guider is limited and fixed at a set position;
when the positioning column is in a second state, the positioning column can be drawn out from the positioning blind hole and slides through the annular groove track, so that the angle of the arc-shaped guider on the positioning column is changed.
As a preferred scheme, the device also comprises a sliding groove which is communicated with the annular groove track; when the positioning column is in the second state, the positioning column can slide out through the sliding-out groove, and at the moment, the arc-shaped guider is separated from contact with the cylindrical block.
Preferably, the handle is fixedly arranged below the base body and is opposite to the driving handle.
The technical scheme provided by the invention has the following advantages:
1. the fixed guide device comprises a base body, a guide rod, a friction fixing structure, a friction driving structure and an arc-shaped guider, wherein the guide rod penetrates through the inner cavity of the base body; the base body is used for connecting other structural components; the guide rod is used for being matched with the arc-shaped guider to abut against the fracture block for temporary fixation and providing accurate guide for drilling; the friction fixing structure is used for fixing the guide rod, and when the guide rod abuts against the fracture block, the friction fixing structure fixes the guide rod through friction force so as to fix the fracture block; the friction driving structure is used for driving the guide rod to overcome the friction force of the friction fixing structure and move forwards, so that the fractured bone block is pressed and fixed on the fractured bone block;
the fixing and guiding device can stably and temporarily fix a fracture block, provides accurate guiding for drilling, reduces operation errors, improves operation efficiency, can relieve pain of a patient, and enables the patient to recover better after an operation.
2. The friction fixing structure comprises a friction fixing plate and a first elastic piece, wherein the friction fixing plate is provided with a fixing through hole for a guide rod to pass through, one end of the friction fixing plate is rotatably connected with the base body, and the other end of the friction fixing plate forms a pressing section; one end of the first elastic piece is connected with the base body, the other end of the first elastic piece is fixedly connected with the position, below the fixing through hole, of the friction fixing plate, and the first elastic piece is in a compression state and an extension state;
when the first elastic piece is in an extension state, the fixing through hole is in extrusion contact with the guide rod, and the guide rod is fixed by friction force between the fixing plate and the guide rod; when first elastic component is in compression state, fixed through-hole and guide bar remove the contact, and the frictional force between friction fixed plate and the guide bar disappears, and the guide bar can move, can switch over two kinds of states of first elastic component through pressing and unclamping the section of pressing.
Through above-mentioned friction fixed plate and first elastic component, can fix the guide bar in optional position and fixed firm, convenient to use at any time.
3. The friction driving structure comprises a friction driving plate, a second elastic piece and a driving handle, wherein a driving through hole for a guide rod to pass through is formed in the middle of the friction driving plate; the middle part of the second elastic part is provided with a second elastic part inner cavity for the guide rod to pass through; the driving handle is rotatably arranged on the base body and is used for poking the friction driving plate to act. When the guide rod needs to be driven to move forwards (for example, when the fracture block needs to be pressed and fixed), the driving handle is pressed, the driving handle stirs one end of the friction driving plate to enable the friction driving plate to incline, and at the moment, the driving through hole is in pressing contact with the guide rod, so that the guide rod is driven to compress the second elastic piece to move forwards; at this time, the guide rod is actually driven to move forwards through the friction force between the driving through hole and the guide rod; when the driving handle is loosened, the friction driving plate returns to be normal, the contact area of the driving through hole and the guide rod is small or no longer contacted, the second elastic piece independently pushes the friction driving plate and the driving handle to return, and one-time forward movement of the guide rod is completed.
The friction driving structure drives the guide rod to move forwards through friction force, the guide rod can be driven to continuously move to any length, and after the operation is stopped, the guide rod is fixed by the friction fixing structure, so that the use is very convenient; in addition, if the front resistance is large and is larger than the friction force between the driving through hole and the guide rod, the driving through hole and the guide rod can slip, so that the guide rod can be prevented from moving forwards too much, and further, the surgical accidents are avoided.
Drawings
To more clearly illustrate the technical solutions in the prior art or the embodiments of the present invention, the drawings used in the description of the prior art or the embodiments are briefly introduced below.
FIG. 1 is a schematic view of the overall structure of the fixed guide of the present invention with the arcuate guide removed;
FIG. 2 is a schematic view of the structure of the substrate of FIG. 1;
FIG. 3 is a schematic structural view of the friction fixing plate of FIG. 1;
FIG. 4 is a schematic structural view of the friction drive plate of FIG. 1;
FIG. 5 is a schematic view of the construction of the arcuate guide of the present invention;
fig. 6 is a schematic view of the structure of the connection structure of fig. 5.
Reference numerals: 1. a substrate; 11. an inner cavity; 12. a first opening; 13. a second opening; 14. a jack; 2. a guide bar; 21. a hollow interior cavity; 3. an arc-shaped guider; 31. positioning the tip; 32. a connecting section; 33. an extension section; 34. a positioning section; 35. connecting a joint; 4. a friction fixing plate; 41. a fixing through hole; 42. a first elastic member; 43. a pressing section; 44. inserting plates; 5. a friction drive plate; 51. a drive through hole; 52. a second elastic member; 54. a drive handle; 55. a groove; 6. a handle; 7. a cylindrical block; 71. a cavity is communicated; 72. an annular groove track; 73. positioning the blind hole; 74. sliding out of the groove; 8. and a positioning column.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings.
Examples
The present embodiment provides a fixed guide device, as shown in fig. 1, including: the device comprises a base body 1, a guide rod 2, an arc-shaped guide 3 (see figure 5), a friction fixing structure and a friction driving structure. Wherein:
the base body 1 has an inner cavity 11, and a first opening 12 and a second opening 13 which are communicated with the inner cavity 11 and are oppositely arranged. The guide rod 2 has a hollow inner cavity 21 extending in the axial direction thereof, and is mounted on the base body 1 in a pluggable manner through the first opening 12 and the second opening 13.
The hollow cavity 21 of the guide rod 2 can directly provide guidance, or a guide rod with a guide hole is arranged in the hollow cavity 21 for guidance (providing guide hole diameters with different sizes).
The arc guider 3 is detachably connected with the base body 1, is used for abutting against the other end of the limb opposite to the fracture block, is matched with the guide rod 2, extrudes and fixes the fracture block together, and provides accurate guide for punching.
The friction fixing structure is arranged on the outer side of the second opening 13, and the friction fixing structure fixes the guide rod 2 at any time by applying friction force to the guide rod 2 and can also maintain the pressing and fixing state of the guide rod 2 on the fracture block.
The friction drive structure sets up on base member 1, and the friction drive structure is used for driving guide bar 2 to overcome the frictional force of friction fixed knot structure to guide bar 2, and then drives guide bar 2 and move forward to move guide bar 2 to the position that offsets with the fracture piece.
The fixing and guiding device can stably and temporarily fix a fracture block, provides accurate guiding for drilling, can reduce operation errors, improves operation efficiency, can relieve pain of a patient, and enables the patient to recover better after an operation.
As shown in fig. 1 to 3, the friction fixing structure includes a friction fixing plate 4 having a fixing through-hole 41 for passing the guide bar 2 therethrough; one end of the friction fixing plate 4 above the fixing through hole 41 is rotatably mounted on the base 1, the other end below the fixing through hole 41 is connected with the base 1 through a first elastic member 42, and a pressing section 43 is formed at the tail end; the first elastic piece 42 is arranged on the base body 1, one end of the first elastic piece is connected with the base body 1, and the other end of the first elastic piece is abutted against the position, below the fixing through hole 41, of the friction fixing plate 41, and has two states of compression and extension;
in the initial state, the first elastic member 42 is in the extended state, and the inner wall of the fixing through hole 41 is in pressing contact with the guide rod 2, applying a frictional force to the guide rod 2, and fixing the guide rod 2 at the set position.
When the pressing section 43 is pressed to compress the first elastic member 42, the fixing through hole 41 is released from the guide rod 2, and the friction fixing plate 4 no longer fixes the guide rod 2, so that the guide rod 2 can move.
The friction fixing plate 4 and the base body 1 are rotatably connected in the present embodiment by: an insert plate 44 is formed above the friction fixing plate 4, an insertion hole 14 is formed on the base body 1, and the insert plate 44 is inserted into the insertion hole 14 to form a rotatable connection.
The friction fixing plate 4 and the base body 1 can be rotatably connected in the following manner: an inserting plate 44 is formed above the friction fixing plate 4, a rotating shaft is formed on the base body 1, and the inserting plate 44 is sleeved on the rotating shaft to form rotatable connection.
The guide rod 2 can be fixed at any position at any time and firmly fixed through the friction fixing plate 4 and the first elastic piece 42, and the use is convenient.
In this embodiment, two opposite side surfaces of the guide rod 2 are vertical surfaces parallel to each other, and the opposite top and bottom surfaces are arc surfaces protruding outwards; two opposite side surfaces of the fixing through hole 41 are vertical surfaces parallel to each other, and opposite top and bottom surfaces are arc-shaped surfaces protruding outwards.
The two arc surfaces of the top surface and the bottom surface of the fixing through hole 41 of the friction fixing plate 4 are controlled by changing the state of the first elastic piece 42, and are contacted with or not contacted with the two arc surfaces of the top surface and the bottom surface of the guide rod 2, so that the guide rod 2 is fixed or released; this facilitates the movement of the guide bar 2 when the first elastic member 42 is in a compressed state.
As shown in fig. 1, 2 and 4, the friction drive structure includes: a friction driving plate 5 located inside the cavity 11, a second elastic member 52 abutting between the inner wall of the cavity 11 and the friction driving plate 5, and a driving knob 54 rotatably mounted on the base body 1. The friction driving plate 5 is provided with a driving through hole 51 for the guide rod 2 to pass through, the second elastic element 52 is provided with a second elastic element inner cavity for the guide rod 2 to pass through, and the driving handle 54 is used for driving the friction driving plate 5 to move.
When the friction driving structure needs to be operated to drive the guide rod 2 to move, the driving handle 54 is pressed, one end of the driving handle 54 stirs one end of the friction driving plate 5, so that the friction driving plate 5 inclines, the driving through hole 51 is in pressing contact with the guide rod 2, and the guide rod 2 is driven to compress the second elastic piece 52 to move forwards.
Preferably, the inner wall of the inner cavity 11 for abutting against the friction driving plate 5 is respectively provided with a groove 55 at the position opposite to the upper end and the lower end of the friction driving plate 5; the lower groove 55 is used for accommodating one end of the driving handle 54, when the driving handle 54 just drives the friction driving plate 5 to incline, the upper groove 55 can accommodate the upper end of the friction driving plate 5, so that the friction driving plate 5 is rapidly inclined and then is in extrusion contact with the guide rod 2, and extrusion hard grinding between the upper end of the friction driving plate 5 and the inner side surface of the base body 1 is avoided.
Preferably, a limiting groove is arranged on the inner wall of the inner cavity 11 for abutting against the friction drive plate 5, and a limiting bulge is arranged on the friction drive plate 5 opposite to the limiting groove; when the second elastic member 52 is in an extended state, the limiting protrusion is inserted into the limiting groove in a matching manner, so that the position of the friction drive plate 5 is limited, the inner wall of the drive through hole 51 formed in the friction drive plate 5 is not in contact with the outer wall of the guide rod 2, and the guide rod 2 is moved more easily when the pressing section 43 is pressed to enable the first elastic member 42 to be in a compressed state.
The friction driving structure drives the guide rod 2 to move forwards through friction force, the guide rod 2 can be driven to continuously move to any length, and after the operation is stopped, the guide rod 2 is fixed by the friction fixing structure, so that the use is very convenient; in addition, if the front resistance is large and is larger than the friction force between the driving through hole 51 and the guide rod 2, the driving through hole 51 and the guide rod 2 will slip, so that the guide rod 2 can be prevented from moving forward too much, and further, the surgical accident can be avoided.
In this embodiment, two opposite side surfaces of the driving through hole 51 are vertical surfaces parallel to each other, and the opposite top and bottom surfaces are arc surfaces protruding outward. The distance between the two opposite side surfaces of the driving through-hole 51 is greater than the distance between the two opposite side surfaces of the guide bar 2.
The two arc surfaces of the top surface and the bottom surface of the driving through hole 51 of the friction driving plate 5 are controlled by the driving handle 54 to be in contact with or not in contact with the two arc surfaces of the top surface and the bottom surface of the guide rod 2, so as to drive or remove the driving guide rod 2; this facilitates the movement of the guide bar 2 when the driving knob 54 is in the initial state.
Preferably, one end of the guide rod 2, which is used for abutting against the fracture block, is provided with a sharp tooth structure, so that the fracture block can be clamped, the fracture block can be prevented from falling off, and the fixation is firmer.
As shown in fig. 5 to 6, the arc guide 3 includes a connecting section 32, an extending section 33 connected to the connecting section 32, and a positioning section 34 connected to the extending section 33; the connecting section 32 is provided with a connecting joint 35, and the connecting section 32 is detachably connected with the base body 1 through the connecting joint 35; the positioning section 34 has a positioning tip 31, and the positioning tip 31 is used for abutting against the other end of the limb opposite to the fracture block, and can firmly fix the fracture block and the limb after being matched with the guide rod 2.
The connection structure includes: the positioning device comprises a cylindrical block 7 arranged at the position of the first opening 12, an annular groove track 72 arranged on the outer side wall of the cylindrical block 7, a positioning blind hole 73 arranged on the annular groove track 72, and an elastic telescopic structure arranged on the connecting joint 35, wherein the elastic telescopic structure is provided with a positioning column 8.
When the positioning column 8 is inserted into the positioning blind hole 73, the arc-shaped guider 3 is connected with the cylindrical block 7, and the rotating position of the arc-shaped guider 3 is fixed; when the positioning column 8 is drawn out of the positioning blind hole 73, the arc-shaped guide 3 can rotate around the cylindrical block 7 along the annular groove track 72, and the rotating position of the arc-shaped guide 3 can be adjusted.
The connection part of the arc-shaped guider 3 and the base body 1 is provided with a sliding-out groove 74, and the sliding-out groove 74 is connected with the annular groove track 72. When the positioning post 8 is withdrawn from the blind positioning hole 73, the positioning post 8 can slide out of the annular groove track 72 through the slide-out groove 74 to be separated from the positioning post 8.
The elastic telescopic structure is shown in fig. 6 and is provided with a positioning column 8 and a push column; the positioning column 8 is connected with an elastic piece, and when the positioning column 8 is in an initial state, namely a first state, the positioning column can be inserted into the positioning blind hole 73 to fix the arc-shaped guider 3 and the base body 1 together; the pushing post is pushed to make the positioning post 8 in the second state, and at this time, the positioning post 8 slides outwards to be separated from the positioning blind hole 73, and the connection between the arc-shaped guider 3 and the base body 1 is released.
In this embodiment, the handle 6 fixedly connected with the base 1 is further included, so that an operator can conveniently hold and operate the handle.
The use method of the fixed guide device in the embodiment is as follows:
when the fracture block needs to be reset and fixed, the arc-shaped guider 3 is firstly installed on the base body 1, and the arc-shaped wire guider 3 is adjusted to rotate to a proper angle, so that the positioning tip 31 is abutted against a proper position of the other end of the limb opposite to the fracture block;
pressing the friction fixing plate 4 to remove the contact between the friction fixing plate 4 and the guide rod 2, and preliminarily adjusting the position of the guide rod 2 to enable the guide rod 2 to be opposite to the fracture block;
the driving handle 54 is operated to further drive the friction driving plate 5, the guide rod 2 is driven to move forwards through the friction force of the upper end and the lower end of the driving through hole 51 to the guide rod 2, and the fracture block and the limb are extruded and fixed;
a punching tool penetrates through the guide rod 2, and punching is carried out under the guiding action of the hollow inner cavity 21 or a guide pipe sleeved in the hollow inner cavity;
after punching, dismantle arc wire guide 3 from base member 1, specifically be: the positioning column 8 is retracted by pressing the push column, and after the positioning column 8 is drawn out from the positioning blind hole 73, the positioning column rotates along the annular groove track 72 and slides out from the sliding-out groove 74, so that the arc-shaped guider 3 is separated from the base body 1.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A stationary guide, comprising:
the base body (1) is provided with an inner cavity (11), and a first opening (12) and a second opening (13) which are communicated with the inner cavity (11) and are oppositely arranged;
a guide rod (2) having a hollow inner cavity (21) extending along the axial direction thereof, and being mounted on the base body (1) in a pluggable manner through the first opening (12) and the second opening (13);
the arc-shaped guide (3) is arranged outside the first opening (12) through a connecting structure and is provided with a positioning tip (31) opposite to the end part of the guide rod (2) penetrating out of the first opening (12);
a friction fixing structure arranged outside the second opening (13) and used for fixing the guide rod (2) by extrusion friction force;
and the friction driving structure is arranged on the base body (1) and used for driving the guide rod (2) to overcome the friction force of the friction fixing structure through friction force and move forwards.
2. The fixed guide of claim 1, wherein the friction fixing structure comprises a friction fixing plate (4) having a fixing through hole (41) for the guide rod (2) to pass through;
one end of the friction fixing plate (4) above the fixing through hole (41) is rotatably arranged on the base body (1), the other end of the friction fixing plate below the fixing through hole (41) is connected with the base body (1) through a first elastic piece (42), and a pressing section (43) is formed at the tail end of the friction fixing plate;
when the first elastic piece (42) is in an extended state, the friction fixing plate (4) is pushed to rotate to a set position relative to the base body (1), and the inner wall of the fixing through hole (41) is in pressing contact with the guide rod (2);
when the first elastic member (42) is in a compressed state by pressing the friction fixing plate (4), the inner wall of the fixing through hole (41) is released from contact with the guide rod (2).
3. The fixed guide of claim 2, wherein: two opposite side surfaces of the guide rod (2) are vertical surfaces which are parallel to each other, and the opposite top surface and the bottom surface are arc surfaces which are convex outwards; two opposite side surfaces of the fixing through hole (41) are vertical surfaces which are parallel to each other, and the opposite top surface and the bottom surface are arc-shaped surfaces which protrude outwards.
4. The fixed guide of claim 2, wherein:
an inserting plate (44) is formed above the friction fixing plate (4), an inserting hole (14) is formed in the base body (1), and the inserting plate (44) is inserted into the inserting hole (14) to form rotatable connection;
or, an inserting plate (44) is formed above the friction fixing plate (4), a rotating shaft is formed on the base body (1), and the inserting plate (44) is sleeved on the rotating shaft to form rotatable connection.
5. The fixed guide of claim 1, wherein the friction drive structure comprises:
a friction driving plate (5) which is positioned in the inner cavity (11) and is provided with a driving through hole (51) in the middle for the guide rod (2) to pass through;
one end of the second elastic piece (52) is abutted against the friction driving plate (5), the other end of the second elastic piece is abutted against the inner wall of the inner cavity (11), and the middle part of the second elastic piece is provided with a second elastic piece inner cavity for the guide rod (2) to pass through;
the driving handle (54) is rotatably arranged on the base body (1) and used for shifting one end of the friction driving plate (5) to enable the friction driving plate (5) to incline, the driving through hole (51) is in pressing contact with the guide rod (2), and then the guide rod (2) is driven to compress the second elastic piece (52) to move forwards.
6. The fixed guide of claim 5, wherein: two opposite side surfaces of the guide rod (2) are vertical surfaces which are parallel to each other, and the opposite top surface and the bottom surface are arc surfaces which are convex outwards; two opposite side surfaces of the driving through hole (51) are vertical surfaces which are parallel to each other, and the opposite top surface and the bottom surface are arc-shaped surfaces which are convex outwards.
7. The fixed guide of claim 5, wherein: and grooves (55) with openings facing the friction driving plate (5) are respectively arranged on the inner wall of the inner cavity (11) for abutting against the friction driving plate (5) and at the positions opposite to the upper end and the lower end of the friction driving plate (5).
8. The fixed guide of claim 5, wherein: a limiting groove is formed in the inner wall of the inner cavity (11) used for abutting against the friction driving plate (5), and a limiting bulge is formed on the friction driving plate (5) opposite to the limiting groove;
when the second elastic piece (52) is in an extending state, the limiting protrusion is matched and inserted with the limiting groove, and the inner wall of the driving through hole (51) is not contacted with the guide rod (2) inserted into the base body (1).
9. The fixed guide of claim 1, wherein the arc-shaped guide (3) comprises:
a connecting section (32) having a connecting nipple (35), the connecting nipple (35) being mounted on the base body (1) by means of a connecting structure;
an extension section (33) having one end connected to the connection section (32) and the other end extending outward;
and one end of the positioning section (34) is connected with the other end of the extension section (33), and the other end of the positioning section is provided with the positioning tip (31).
10. The fixed guide of claim 9, wherein the connection structure comprises:
the cylindrical block (7) is fixedly arranged at the position of the first opening (12), and the middle part of the cylindrical block is provided with a through cavity (71) for the guide rod (2) to extend out;
the annular groove track (72) is arranged on the outer side wall of the cylindrical block (7) in a surrounding mode;
at least one positioning blind hole (73) is arranged on the annular groove track (72);
the elastic telescopic structure is arranged on the connecting joint (35) and is provided with a positioning column (8); the positioning column has a first state and a second state;
when the positioning column (8) is in a first state, the positioning column can be inserted into the positioning blind hole (73) to limit and fix the arc-shaped guider (3) at a set position;
when the positioning column (8) is in the second state, the positioning column can be drawn out from the positioning blind hole (73) and slides through the annular groove track (72), so that the angle of the arc-shaped guider (3) on the positioning column (8) is changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110495674.3A CN113100872A (en) | 2021-05-07 | 2021-05-07 | Fixed guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110495674.3A CN113100872A (en) | 2021-05-07 | 2021-05-07 | Fixed guiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113100872A true CN113100872A (en) | 2021-07-13 |
Family
ID=76721261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110495674.3A Pending CN113100872A (en) | 2021-05-07 | 2021-05-07 | Fixed guiding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113100872A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440238A (en) * | 2021-07-27 | 2021-09-28 | 山东大学齐鲁医院(青岛) | Steel wire tightening device |
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| CA2072059A1 (en) * | 1992-02-19 | 1993-08-20 | A. Frank Trott | Surgical drill guide |
| US6017342A (en) * | 1998-08-05 | 2000-01-25 | Beere Precision Medical Instrumnets, Inc. | Compression and distraction instrument |
| CN1374846A (en) * | 1999-09-15 | 2002-10-16 | 库尔斯恩蒂斯股份公司 | Repositioning device for bone fragments |
| CN111839711A (en) * | 2020-08-19 | 2020-10-30 | 吴丹凯 | Gun type lifting forceps capable of effectively pressurizing fracture broken ends |
| CN211904732U (en) * | 2020-03-24 | 2020-11-10 | 沈阳民盛环境检测有限公司 | Positioning type water quality sampling device for environment detection |
| US20200352581A1 (en) * | 2019-05-07 | 2020-11-12 | Martin Russi | Osteotomy protection and guidance device |
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- 2021-05-07 CN CN202110495674.3A patent/CN113100872A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2072059A1 (en) * | 1992-02-19 | 1993-08-20 | A. Frank Trott | Surgical drill guide |
| US6017342A (en) * | 1998-08-05 | 2000-01-25 | Beere Precision Medical Instrumnets, Inc. | Compression and distraction instrument |
| CN1374846A (en) * | 1999-09-15 | 2002-10-16 | 库尔斯恩蒂斯股份公司 | Repositioning device for bone fragments |
| US20200352581A1 (en) * | 2019-05-07 | 2020-11-12 | Martin Russi | Osteotomy protection and guidance device |
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| CN111839711A (en) * | 2020-08-19 | 2020-10-30 | 吴丹凯 | Gun type lifting forceps capable of effectively pressurizing fracture broken ends |
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| CN113440238A (en) * | 2021-07-27 | 2021-09-28 | 山东大学齐鲁医院(青岛) | Steel wire tightening device |
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Application publication date: 20210713 |