CN113729845A - Kirschner wire auxiliary guiding diaphysis fracture operation reduction device - Google Patents
Kirschner wire auxiliary guiding diaphysis fracture operation reduction device Download PDFInfo
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- CN113729845A CN113729845A CN202110947102.4A CN202110947102A CN113729845A CN 113729845 A CN113729845 A CN 113729845A CN 202110947102 A CN202110947102 A CN 202110947102A CN 113729845 A CN113729845 A CN 113729845A
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- sliding
- clamping plate
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- guide sleeve
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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
- A61B17/16—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
- A61B17/171—Guides or aligning means for drills, mills, pins or wires for external fixation
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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
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
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Abstract
The invention relates to the technical field of biomedical equipment. The Kirschner wire auxiliary guide diaphysis fracture operation reduction device comprises a reduction forceps body, a guide assembly and a positioning assembly, wherein the reduction forceps body comprises an upper splint and a lower splint which are arranged up and down; a guide hole is formed in the guide sleeve; the upper clamping plate is provided with a sliding chute for slidably connecting the guide assembly, the upper part and the lower part of the sliding chute are both provided with openings, the sliding chute is slidably connected with the guide sleeve, and the locking nut is in threaded connection with the guide sleeve; the lower clamping plate is provided with a strip-shaped opening which is arranged corresponding to the sliding groove up and down. This patent is through optimizing the structure of pincers that reset, through guide assembly, spout and strip open-ended combination, leads to the drill bit, prevents that the drill bit from taking place the displacement, and the fixed diaphysis fracture of kirschner wire of being convenient for further avoids shifting.
Description
Technical Field
The invention relates to the technical field of biomedical equipment, in particular to a device for assisting in guiding diaphysis fracture operation reduction by a kirschner wire.
Background
The fracture refers to the continuous complete or partial fracture of the bone structure, most of which is caused by high-energy injury and mostly occurs in young and old people, and researches show that the fracture of a single part of a patient is often caused, the fracture of multiple parts of the patient is caused in part of the patients, the fracture treatment is proper and timely, and most of the patients can recover to the original state and function.
The diaphysis is a part which is very easy to cause fracture injury, the fracture of the diaphysis part greatly affects the functions of a patient and often needs surgical treatment, most of the diaphysis parts are subjected to forceps holder resetting by adopting resetting forceps, and after the shape of the diaphysis is maintained, steel plate steel nails are implanted into the fracture parts for strong fixation, so that the stability of the fracture parts is ensured, and the functional recovery after the operation is ensured.
The existing reduction forceps device (such as the reduction device for the operation of the fracture of the bone trunk disclosed by the publication number CN 209645045U) solves the following problems of the traditional reduction forceps device that 1) the structure is complex, the function is simple, the meshing part of the reduction forceps is not provided with a concave-convex clamping groove, the biting force is not enough, the fracture end is not easy to be fixed and the displacement of the fracture end is easy to cause after the reduction forceps is contacted with the fracture part of the bone trunk. 2) After the fracture part is reset and fixed, the reduction forceps still need to be held by an operator, and cannot be locked by the operator, so that the reduction forceps are inconvenient to use.
However, the drill holes cannot be guided, and the corresponding angle of guidance cannot be obtained, the fixation of the kirschner wires of the drill holes is easy to deviate or even deviate, effective fixation is difficult to obtain, and the long-time reduction and fixation operation and the maintenance state can increase the trauma of tissues around the fracture, cause discomfort to patients, and increase the pain experience of the patients.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a Kirschner wire auxiliary-guiding diaphysis fracture operation reduction device, which is used for solving at least one technical problem.
In order to achieve the purpose, the invention provides a Kirschner wire auxiliary guide diaphysis fracture operation reduction device which comprises a reduction forceps body, wherein the reduction forceps body comprises an upper splint and a lower splint which are arranged up and down;
a guide hole is formed in the guide sleeve;
the upper clamping plate is provided with a sliding groove for connecting the guide assembly in a sliding manner, the upper part and the lower part of the sliding groove are both provided with openings, the sliding groove is connected with the guide sleeve in a sliding manner, and the locking nut is connected with the guide sleeve in a threaded manner;
the lower clamping plate is provided with a strip-shaped opening, and the strip-shaped opening and the sliding groove are arranged in an up-and-down corresponding mode.
This patent is through optimizing the structure of pincers that reset, through guide assembly, spout and strip open-ended combination, leads to the drill bit, prevents that the drill bit from taking place the displacement, and the fixed backbone fracture of kirschner wire of being convenient for further avoids shifting, has practiced thrift the time of operation greatly, has improved the fixed operating efficiency of kirschner wire.
Further preferably, the outer wall of the outer convex part comprises two planes parallel to each other;
the plane is a contact surface in sliding connection with the sliding groove.
The guide sleeve is prevented from rotating in the sliding groove.
Further preferably, the included angle between the central axis of the guide hole and the central axis of the outer wall of the guide sleeve is 0-45 degrees.
The guiding in different inclination directions is convenient to realize. When the Kirschner wire needs to be driven at a specific inclination angle, the guide hole with the corresponding inclination angle is selected.
Or the central axis of the outer wall of the guide sleeve is parallel to the central axis of the guide hole;
the outer wall of the guide sleeve is further sleeved with a cushion block, and the nut is abutted to the cushion block.
The nut is convenient to realize the limiting and fixing of the guide sleeve which is obliquely arranged.
The adjustable sleeve comprises a sliding part and an adjusting part, the sliding part is connected with the adjusting part through an angle adjusting mechanism, the sliding part and the adjusting part are provided with through holes which are communicated with each other, and the sliding part and the through holes of the adjusting part are communicated with each other to form an adjustable guide hole;
the cross section of the through hole of the sliding part is in a waist circle shape;
the bottom of sliding part is equipped with protrudingly, sliding part with spout sliding connection, just sliding part with the rotatory joint of spout.
The guide angle of the guide sleeve can be adjusted conveniently according to different requirements.
Preferably, the angle adjusting mechanism comprises a screw, and the sliding part and the adjusting part are both provided with a rotating shaft hole for passing through the screw;
the sliding part and the rotating shaft hole of the adjusting part penetrate through the screw to be locked.
The outer wall of the sliding part provided with the rotating shaft hole is provided with a datum line;
the outer wall of the adjusting part provided with the rotating shaft hole is provided with an angle marking line.
The relative rotation angle of the sliding part and the adjusting part can be visually observed conveniently.
Further preferably, the length direction of the sliding groove of the upper clamping plate is the left-right direction;
the device also comprises a replacement splint group, wherein the replacement splint group comprises an auxiliary upper splint and an auxiliary lower splint which are arranged up and down;
the auxiliary upper clamping plate is provided with an auxiliary sliding groove used for being connected with the guide sleeve in a sliding mode, and the guide direction of the auxiliary sliding groove and the left-right direction form an acute angle or a right angle;
the auxiliary lower clamping plate is provided with an auxiliary strip-shaped opening which is vertically and correspondingly arranged with the auxiliary sliding chute;
the auxiliary upper clamping plate and the auxiliary lower clamping plate are detachably connected with the first clamp handle and the second clamp handle.
Is convenient for the disassembly and the combination of different splints.
Preferably, the locking mechanism comprises an arc-shaped bent connecting rod, the lower end of the connecting rod is fixedly connected with the second forceps handle, and a thread groove is formed in the upper end of the connecting rod;
and a channel for the connecting rod to pass through is clamped on the first clamp handle, and the connecting rod passes through the channel and is connected with the nut.
The relative limiting locking of the first clamp handle and the second clamp handle is convenient to realize, and then the upper clamp plate and the lower clamp plate are realized.
Preferably, a rubber leather sheath is glued to the right ends of the first forceps handle and the second forceps handle.
Further preferably, concave-convex clamping grooves are formed in the inner sides of the upper clamping plate and the lower clamping plate. The clamping can be convenient at the concave-convex position.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 3 is a top view of embodiment 1 of the present invention;
FIG. 4 is another top view of embodiment 1 of the present invention;
FIG. 5 is a cross-sectional view of a guide sleeve according to embodiment 1 of the present invention;
fig. 6 is a cross-sectional view of a fitting portion of a guide sleeve according to a second embodiment of the present invention;
FIG. 7 is a schematic structural view of an adjustable guide sleeve according to embodiment 1 of the present invention;
fig. 8 is a schematic view of the rotational clamping of the limiting portion according to embodiment 1 of the present invention.
Wherein: 1 is a first clamp handle; 2 is a limiting block; 3 is a nut; 4 is a rubber leather sheath; 5 is a thread groove; 6 is a connecting rod; 7 is a second clamp handle; 8 is a rotating shaft; 9 is a lower splint; 10 is an external convex part; 11 is an upper splint; 12 is a guide sleeve; 13 is a locking nut; 14 is a concave-convex clamping groove, 15 is a guide hole, 16 is a cushion block, 17 is a sliding part, 18 is an adjusting part, and 20 is a limiting part.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
In specific embodiment 1, referring to fig. 1 to 8, the reduction device for the k-wire assisted guided bone fracture surgery comprises a reduction forceps body, the reduction forceps body comprises an upper splint 11 and a lower splint 9 which are arranged up and down, the reduction forceps further comprises a first forceps handle 1 and a second forceps handle 7 which are hinged to each other through a rotating shaft 8, the first forceps handle 1 is connected with the upper splint 11, the second forceps handle 7 is connected with the lower splint 9, the first forceps handle 1 and the second forceps handle 7 are connected through a locking mechanism, the reduction device further comprises a guide assembly, the guide assembly comprises a guide sleeve 12 and a locking nut 13 for limiting and fixing the guide sleeve 12 on the upper splint 11, and an outer convex part 10 is arranged at the bottom of the guide sleeve 12; a guide hole for guiding the direction of the drill bit is formed in the guide sleeve 12; offer the spout that is used for sliding connection guide assembly on the punch holder 11, the equal opening about the spout, spout and guide sleeve 12 sliding connection, lock nut 13 and guide sleeve 12 threaded connection. See B in fig. 2. The lower clamping plate 9 is provided with a strip-shaped opening which is arranged corresponding to the sliding groove up and down. This patent is through optimizing the structure of pincers that reset, through guide assembly, spout and strip open-ended combination, leads to the drill bit (the kirschner wire is also guided in the uide bushing), prevents that the drill bit from taking place the displacement, and the diaphysis fracture is fixed to the kirschner wire of being convenient for, further avoids shifting, has practiced thrift the time of operation greatly, has improved the fixed operating efficiency of kirschner wire.
The locking mechanism comprises an arc-shaped bent connecting rod 6, the lower end of the connecting rod 6 is fixedly connected with a second clamp handle 7, a limiting block 2 is arranged at the top of the connecting rod 6, and a threaded groove 5 is formed in the upper end of the connecting rod 6; the first forceps handle 1 is clamped with a channel for the connecting rod 6 to pass through, and the connecting rod 6 passes through the channel to be connected with the nut 3. The relative limiting and locking of the first clamp handle 1 and the second clamp handle 7 can be conveniently realized, and then the upper clamping plate 11 and the lower clamping plate 9 can be realized. The right ends of the first forceps handle 1 and the second forceps handle 7 are glued with a rubber leather sheath 4. The inner sides of the upper clamping plate 11 and the lower clamping plate 9 are provided with concave-convex clamping grooves 14. The clamping can be convenient at the concave-convex position.
The outer wall of the male part 10 comprises two planes parallel to each other; the plane is a contact surface in sliding connection with the sliding groove. Rotation of the guide sleeve 12 in the slide groove is prevented.
Several solutions exist for the guide sleeve 12:
in the first scheme, the first step is that,
referring to fig. 5, the central axis of the guide hole 15 is at an angle of 0 ° to 45 ° to the central axis of the outer wall of the guide sleeve 12. The guiding in different inclination directions is convenient to realize. When the Kirschner wire needs to be driven at a specific inclination angle, the guide hole with the corresponding inclination angle is selected.
In the second scheme, the first step is that,
referring to fig. 6, the central axis of the outer wall of the guide sleeve 12 is parallel to the central axis of the guide hole; the outer wall of the guide sleeve 12 is also sleeved with a cushion block, and the nut abuts against the cushion block 16. The nut is convenient to realize the limiting and fixing of the guide sleeve 12 which is obliquely arranged. The lower surface of the cushion block is propped against the upper side of the upper clamping plate, and the upper surface of the cushion block is propped against the nut. The included angle between the upper surface of the cushion block and the lower surface of the cushion block is an acute angle. The central axis of the guide hole is obliquely arranged. That is, the central axis of the guide hole forms an acute angle with the upper surface of the upper clamping plate.
Referring to fig. 7, an adjustable sleeve with an adjustable guiding angle may also be adopted, and specifically, the adjustable sleeve further includes an adjustable sleeve, the adjustable sleeve includes a sliding portion and an adjusting portion 18, the sliding portion 17 is connected with the adjusting portion 18 through an angle adjusting mechanism, the sliding portion 17 and the adjusting portion 18 are provided with through holes that are mutually communicated, and the sliding portion 17 and the through hole of the adjusting portion 18 are mutually communicated to form an adjustable guiding hole for guiding the direction of the drill bit; the cross section of the through hole of the sliding portion 17 is shaped like a kidney-shaped circle. The length direction of the waist circular hole is parallel to the rotatable rotation central line direction of the sliding part and the adjusting part. The bottom of sliding part 17 is equipped with the arch, sliding part 17 and spout sliding connection, sliding part and the rotatory joint of spout. The structure to rotatory joint, that is to say the spout from last to including upper portion, middle part and lower part down, the sliding part is including the cylinder portion and the spacing portion that set up from top to bottom, the external diameter and the width phase-match on upper portion of cylinder portion, and the cross section of spacing portion is the rectangle that a diagonal angle is the circular arc, the distance of the long avris of rectangle and the width phase-match in middle part, and the length of the short avris of rectangle is greater than the width on upper portion. The sliding part can be clamped in the sliding groove in a rotating manner conveniently. The lower part is a channel for the K-wire to pass through. The width of the lower portion may match the width of the upper portion. Referring to fig. 8, the limiting part 20 on the left side of the arrow is a schematic view of sliding into the chute, and the limiting part on the right side of the arrow is a schematic view of rotating and clamping in the chute. The waist hole on the stopper portion is not shown. The angle adjusting mechanism comprises a screw, and rotating shaft holes for passing through the screw are formed in the sliding part 17 and the adjusting part 18; the sliding part 17 and the rotating shaft hole of the adjusting part 18 are locked by passing through a screw. The screw is provided with two, sets up oppositely. The outer wall of the sliding part 17 provided with the rotating shaft hole is provided with a datum line; the outer wall of the adjusting part 18 provided with the rotating shaft hole is provided with an angle marking line. The relative rotation angle of the sliding portion 17 and the adjusting portion 18 can be visually observed.
In specific embodiment 2, based on the specific embodiment 1, the length direction of the sliding groove of the upper clamping plate is the left-right direction; the replaceable clamping plate group comprises an upper auxiliary clamping plate and a lower auxiliary clamping plate which are arranged up and down; the auxiliary upper clamping plate is provided with an auxiliary sliding chute used for being connected with the guide sleeve in a sliding manner, the upper part and the lower part of the auxiliary sliding chute are provided with openings, and the guide direction of the auxiliary sliding chute and the left-right direction form an acute angle or a right angle; the auxiliary lower clamping plate is provided with an auxiliary strip-shaped opening which is vertically and correspondingly arranged with the auxiliary sliding chute; the auxiliary upper clamping plate and the auxiliary lower clamping plate are detachably connected with the first clamp handle and the second clamp handle. Is convenient for the disassembly and the combination of different splints.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. The Kirschner wire auxiliary guide diaphysis fracture operation resetting device comprises a resetting clamp body, wherein the resetting clamp body comprises an upper clamping plate and a lower clamping plate which are arranged up and down, the resetting clamp further comprises a first clamp handle and a second clamp handle which are hinged with each other, the first clamp handle is connected with the upper clamping plate, the second clamp handle is connected with the lower clamping plate, the first clamp handle and the second clamp handle are connected through a locking mechanism, the resetting device is characterized by further comprising a guide assembly, the guide assembly comprises a guide sleeve and a locking nut for limiting and fixing the guide sleeve on the upper clamping plate, and an outer convex part is arranged at the bottom of the guide sleeve;
a guide hole is formed in the guide sleeve;
the upper clamping plate is provided with a sliding groove for connecting the guide assembly in a sliding manner, the upper part and the lower part of the sliding groove are both provided with openings, the sliding groove is connected with the guide sleeve in a sliding manner, and the locking nut is connected with the guide sleeve in a threaded manner;
the lower clamping plate is provided with a strip-shaped opening, and the strip-shaped opening and the sliding groove are arranged in an up-and-down corresponding mode.
2. The kirschner wire-assisted guided diaphysis fracture surgical reduction device of claim 1, wherein: the outer wall of the outer convex part comprises two planes which are parallel to each other;
the plane is a contact surface in sliding connection with the sliding groove.
3. The kirschner wire-assisted guided diaphysis fracture surgical reduction device of claim 1, wherein: the included angle between the central axis of the guide hole and the central axis of the outer wall of the guide sleeve is 0-45 degrees.
4. The kirschner wire-assisted guided diaphysis fracture surgical reduction device of claim 1, wherein: the central axis of the outer wall of the guide sleeve is parallel to the central axis of the guide hole;
the outer wall of the guide sleeve is further sleeved with a cushion block, and the nut is abutted to the cushion block.
5. The kirschner wire-assisted guided diaphysis fracture surgical reduction device of claim 1, wherein: the adjustable sleeve comprises a sliding part and an adjusting part, the sliding part is connected with the adjusting part through an angle adjusting mechanism, the sliding part and the adjusting part are provided with through holes which are communicated with each other, and the sliding part and the through holes of the adjusting part are communicated with each other to form an adjustable guide hole;
the cross section of the through hole of the sliding part is in a waist circle shape;
the bottom of sliding part is equipped with protrudingly, sliding part with spout sliding connection, just sliding part with the rotatory joint of spout.
6. The kirschner wire-assisted guided diaphysis fracture surgical reduction device of claim 5, wherein: the angle adjusting mechanism comprises a screw, and the sliding part and the adjusting part are both provided with rotating shaft holes for penetrating through the screw;
the sliding part and the rotating shaft hole of the adjusting part penetrate through the screw to be locked.
7. The kirschner wire-assisted guided shaft fracture reduction device of claim 6, wherein: the outer wall of the sliding part provided with the rotating shaft hole is provided with a datum line;
the outer wall of the adjusting part provided with the rotating shaft hole is provided with an angle marking line.
8. The kirschner wire-assisted guided diaphysis fracture surgical reduction device of claim 1, wherein: the length direction of the sliding groove of the upper clamping plate is the left-right direction;
the device also comprises a replacement splint group, wherein the replacement splint group comprises an auxiliary upper splint and an auxiliary lower splint which are arranged up and down;
the auxiliary upper clamping plate is provided with an auxiliary sliding groove used for being connected with the guide sleeve in a sliding mode, and the guide direction of the auxiliary sliding groove and the left-right direction form an acute angle or a right angle;
the auxiliary lower clamping plate is provided with an auxiliary strip-shaped opening which is vertically and correspondingly arranged with the auxiliary sliding chute;
the auxiliary upper clamping plate and the auxiliary lower clamping plate are detachably connected with the first clamp handle and the second clamp handle.
9. The kirschner wire-assisted guided diaphysis fracture surgical reduction device of claim 1, wherein: the locking mechanism comprises an arc-shaped bent connecting rod, the lower end of the connecting rod is fixedly connected with the second clamp handle, and a thread groove is formed in the upper end of the connecting rod;
and a channel for the connecting rod to pass through is clamped on the first clamp handle, and the connecting rod passes through the channel and is connected with the nut.
10. The kirschner wire-assisted guided diaphysis fracture surgical reduction device of claim 1, wherein: and rubber leather sleeves are glued at the right ends of the first forceps handle and the second forceps handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110947102.4A CN113729845A (en) | 2021-08-18 | 2021-08-18 | Kirschner wire auxiliary guiding diaphysis fracture operation reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110947102.4A CN113729845A (en) | 2021-08-18 | 2021-08-18 | Kirschner wire auxiliary guiding diaphysis fracture operation reduction device |
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| CN113729845A true CN113729845A (en) | 2021-12-03 |
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| CN202110947102.4A Pending CN113729845A (en) | 2021-08-18 | 2021-08-18 | Kirschner wire auxiliary guiding diaphysis fracture operation reduction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114983550A (en) * | 2022-05-24 | 2022-09-02 | 中国人民解放军空军军医大学 | Fracture treatment kirschner wire positioning device |
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2021
- 2021-08-18 CN CN202110947102.4A patent/CN113729845A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114983550A (en) * | 2022-05-24 | 2022-09-02 | 中国人民解放军空军军医大学 | Fracture treatment kirschner wire positioning device |
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