CN2283465Y - Bennase franture from skin penetration needle outer fixator - Google Patents
Bennase franture from skin penetration needle outer fixator Download PDFInfo
- Publication number
- CN2283465Y CN2283465Y CN 96226847 CN96226847U CN2283465Y CN 2283465 Y CN2283465 Y CN 2283465Y CN 96226847 CN96226847 CN 96226847 CN 96226847 U CN96226847 U CN 96226847U CN 2283465 Y CN2283465 Y CN 2283465Y
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- screw
- fixed cover
- fracture
- bennase
- pressure rod
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Abstract
The utility model relates to a Bennase fracture from skin penetration needle outer fixer, which comprises a Kirschner needle, lock needle clamps, a fixing sleeve, an extending pressure rod and fastening screws. The utility model is characterized in that two sets of lock needle clamps 1, 2 are respectively and integrally connected with both ends of each of the fixed sleeve 4 and the extending pressure rod 5 through the fastening screws 3. The lock needle clamps can be locked at any point of a plane within 180 DEG, and the plane is parallel to the needle. The length of the rod 5 is adjustable, and the rod can be rotated to the left and right. A Kirschner needle which penetrates through a first metacarpal bone and the far end of the radius through skin is locked by the lock needle clamps 1, 2, and directly acts on the bone by traction or pressure. The contraposition of the fracture is stable, and the fracture position is relatively resting; thus the healing of the fracture is accelerated, and the residual shift after the resetting can also be solved. The utility model has the advantages of simple and practical operation, reliable fixing, etc.
Description
This utility model belongs to medical apparatus and instruments, and external fixation of fracture usefulness belongs to A61F 5/04 class, is used for the treatment of Bennase fracture or first metacarpal bone basilar part comminuted fracture.
Bennase fracture (Bennett) is meant the carpometacarpal dislocation of first metacarpal bone basilar part fracture, is the common damage of hand, easy, the fixing difficulty of reduction in clinical, and late complication is many.Adopt the manual reduction backboard to fix to the Bennase treatment of fractures at present, plaster fixation or open reduction Kirschner wire steel wire internal fixation are though above method can be that Therapeutic Method does not solve this class fracture because have preferably in each hospital application so far more.Can produce the compressing skin ulcer as backboard is fixing, closed-plaster method causes ankylosis, and employing open reduction Kirschner wire is fixed, the fixation with steel wire method also is at a loss what to do to syntripsis.This class fracture is used methods solutions such as patent CN2170745Y and 2109184U also just makes the reduction of the fracture by unidirectional thumb traction and pressurized, and the fixed degree of reliability still is not ideal enough.
The purpose of this utility model provides a kind of percutaneous pinning external fixator for the treatment of the Bennase fracture, with solving this difficult point, makes the fracture para-position stable, accelerating union of bone fracture.
Bennase fracture percutaneous pinning external fixator is according to biology and Mechanics of Machinery principle design.It comprises purl folder 1,2, fixed cover 4 and extension pressure rod 5 and holding screw 3,6,7, it is characterized in that the two ends that two cover purls folders 1,2 are connected to fixed cover 4 by holding screw 3 and extend pressure rod 5 form one, the circular arc of each part termination makes between two cover purls folders 1,2 and fixed cover 4 and the pressure rod 5 and can a bit lock arbitrarily in 180 ° of degree on the face parallel with pin.
This holder has solved the stable problem in the fixing back of the Bennase reduction of the fracture in the past.Its feature is to use four pieces of Kirschner wires that percutaneous penetrates skeleton to combine with external fixator, pin folder 1,2 locking percutaneous penetrate the Kirschner wire of first metacarpal bone and distal radius, because pull strength or pressure directly act on diaphysis, make the fracture para-position stable, thus the static relatively healing of quickening fracture of fracture.Fixed cover 4 can a bit lock arbitrarily in 180 ° of scopes on the face parallel with pin after but the cylinder end semicircular body arc that can make body extending or cripetura pressurization and left-right rotation, purl folder 2 and fixed cover 4 after pressure rod 5 cooperates and extend pressure rod 5 matches with extending.These characteristics make this holder have adjustability, and can solve the remnants displacement after resetting, and through clinical verification, have advantage such as reliable easy to operation, fixing.
Accompanying drawing 1 is the front view of Bennase fracture percutaneous pinning external fixator;
Accompanying drawing 2 is vertical views of Bennase fracture percutaneous pinning external fixator;
Accompanying drawing 4 is side views of Bennase fracture percutaneous pinning external fixator;
Bennase fracture percutaneous pinning external fixator comprises Kirschner wire, purl folder 1,2, fixed cover 4 and extension pressure rod 5 and holding screw 3,6,7, and each parts all processes with rustless steel.The fix bone pin is generally used 1.2mm or 1.5mmShi pin.The feature of holder is that the two ends that two cover purls folders 1,2 are connected to fixed cover 4 by holding screw 3 and extend pressure rod 5 form one, purl folder 2 and fixed cover 4, as can be on the face parallel between the depression bar 5 with pin some locking arbitrarily in 180 ° of degree.Purl folder 1 is a semicircular body, and it is cylinder that purl presss from both sides 2 middle parts, and two ends are the relative semicircular body of section, 1 and 2 are having vertical with it screw in the middle part of the section separately, have four semicircular arcs to lack in the section side, divide two groups to be positioned at the screw both sides perpendicular to axis, screw 7 cooperates with screw.Fixed cover 4 is a cylindrical body, annular boss is arranged and a screw is arranged in the external diameter part near the nozzle end, cooperates with screw 6; Extending pressure rod 5 is cylinder, and one end diameter increases, and the other end cooperates with fixed cover 4, can prolong, shortens or adjust angle, with screw 6 location.The feature that each part interosculates is: A: the cylinder end that purl presss from both sides 2 other ends, fixed cover 4 and extension pressure rod 5 diameters increase end is respectively semicircular body, and the screw perpendicular to section is all arranged in the middle, and its termination is that circular arc becomes radius with screw; B: purl presss from both sides the semicircular body of 2 cylindrical ends and fixed cover 4, extend the semicircular body that pressure rod 5 diameters increase is 180 ° of opposite directions.C: the screw on fixed cover (4) the nozzle end boss and the section of other end semicircular body are axis normal.
The using method of this holder is as follows:
Patient generally adopts brachial plexus or local anesthesia, manual reduction under the TV X-ray monitors makes fracture anatomical reduction as far as possible, and observation pierces the first metacarpal bone locking pin after resetting and being satisfied with, the position should be about first metacarpal bone head 0.8cm, and two needle gages are decided from lacking according to purl grip hold arc shape.Length according to external fixator extension pressure rod pierces the distal radius locking pin and then, distance is decided according to purl grip hold arc shape is scarce between two pins, four pieces of pins should be in same horizontal plane, a little error is by the external fixator adjustment, but fixed cover 4 can make body extending or cripetura pressurization and left-right rotation with extending after pressure rod 5 cooperates.Should avoid thumb, extensor hallucis brevis tendon when threading a needle, cephalic vein and radial nerve,superficial, depth of needle is to see through offside cortical bone 1mm for well.
Fastening purl folder screw 7 loosens holding screw 3,6 after above-mentioned the finishing, and external fixator is in loosens adjustable state, maneuver eutopic reduction fracture, after the observation good apposition, locking holding screw 3,6, aseptic wrapping sealing needle track art finishes.
Claims (4)
1, a kind of Bennase fracture percutaneous pinning external fixator, comprise Kirschner wire purl folder (1), (2), fixed cover (4) and extension pressure rod (5) and holding screw (3), (6), (7) is characterized in that the two ends formation one that two cover purls folders (1), (2) are connected to fixed cover (4) by holding screw (3) and extend pressure rod (5).
2, Bennase fracture percutaneous pinning external fixator according to claim 1, it is characterized in that purl folder (1) is a semicircular body, purl folder (2) middle part is a cylinder, two ends are the relative semicircular body of section, (1), (2) are having vertical with it screw in the middle part of the section separately, have four semicircular arcs to lack in the section side, divide two groups to be positioned at the screw both sides perpendicular to axis, screw (7) cooperates with screw.
3, Bennase fracture percutaneous pinning external fixator according to claim 1 is characterized in that fixed cover (4) is cylindrical body, annular boss is arranged and a screw is arranged in the external diameter part near the nozzle end, cooperates with screw (6); Extending pressure rod (5) is cylinder, and one end diameter increases, and the other end cooperates with fixed cover (4), with screw (6) location.
4, Bennase fracture percutaneous pinning external fixator according to claim 1, it is characterized in that A: the cylinder end that purl folder (2) other end, fixed cover (4) other end and extension pressure rod (5) diameter increase end is respectively semicircular body, screw perpendicular to section is all arranged in the middle, and its termination is that circular arc becomes radius with screw; B: the semicircular body that semicircular body of purl folder (2) cylindrical end and fixed cover (4), extension pressure rod (5) diameter increase is 180 ° of opposite directions; C: the screw on fixed cover (4) the nozzle end boss and the section of other end semicircular body are axis normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226847 CN2283465Y (en) | 1996-07-10 | 1996-07-10 | Bennase franture from skin penetration needle outer fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226847 CN2283465Y (en) | 1996-07-10 | 1996-07-10 | Bennase franture from skin penetration needle outer fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2283465Y true CN2283465Y (en) | 1998-06-10 |
Family
ID=33905106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96226847 Expired - Fee Related CN2283465Y (en) | 1996-07-10 | 1996-07-10 | Bennase franture from skin penetration needle outer fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2283465Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104531615A (en) * | 2015-01-05 | 2015-04-22 | 山东中医药大学 | Method for collecting mesenchymal stem cells through rat stress fracture model |
| CN104523349A (en) * | 2015-01-05 | 2015-04-22 | 山东中医药大学 | Non-connection model building method for hypertrophy bone connected with femoral shaft gristle of big mouse |
| CN104546090A (en) * | 2015-01-30 | 2015-04-29 | 成永忠 | Combined joint movement apparatus |
| CN104840241A (en) * | 2015-06-10 | 2015-08-19 | 哈尔滨邦美医疗科技有限公司 | Micro external fixator with two dynamically-adjustable arms |
| CN111568518A (en) * | 2020-04-16 | 2020-08-25 | 洪磊 | External fixation support for minimally invasive percutaneous wrist scaphoid fixation |
-
1996
- 1996-07-10 CN CN 96226847 patent/CN2283465Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104531615A (en) * | 2015-01-05 | 2015-04-22 | 山东中医药大学 | Method for collecting mesenchymal stem cells through rat stress fracture model |
| CN104523349A (en) * | 2015-01-05 | 2015-04-22 | 山东中医药大学 | Non-connection model building method for hypertrophy bone connected with femoral shaft gristle of big mouse |
| CN104523349B (en) * | 2015-01-05 | 2017-09-22 | 山东中医药大学 | A kind of method for building up of the hypertrophy bone nonunion model of the dry cartilage connection of rat femur |
| CN104531615B (en) * | 2015-01-05 | 2018-05-01 | 山东中医药大学 | A kind of method that mescenchymal stem cell is raised by rat stress fracture model |
| CN104546090A (en) * | 2015-01-30 | 2015-04-29 | 成永忠 | Combined joint movement apparatus |
| CN104840241A (en) * | 2015-06-10 | 2015-08-19 | 哈尔滨邦美医疗科技有限公司 | Micro external fixator with two dynamically-adjustable arms |
| CN111568518A (en) * | 2020-04-16 | 2020-08-25 | 洪磊 | External fixation support for minimally invasive percutaneous wrist scaphoid fixation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |