CN105640624A - Quick coupling of medical internal and external fixators for department of orthopaedics - Google Patents
Quick coupling of medical internal and external fixators for department of orthopaedics Download PDFInfo
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- CN105640624A CN105640624A CN201410626490.6A CN201410626490A CN105640624A CN 105640624 A CN105640624 A CN 105640624A CN 201410626490 A CN201410626490 A CN 201410626490A CN 105640624 A CN105640624 A CN 105640624A
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Abstract
The invention relates to the technical field of medical apparatus and instruments for the department of orthopaedics, and in particular relates to a quick coupling of medical internal and external fixators for the department of orthopaedics. The quick coupling comprises a three-jaw annular grip for maintaining the alignment of fracture after reduction, a tapping drill bit for drilling threaded bone holes in the fracture alignment part, a graduated ruler for measuring the depth of the threaded bone holes, a clamping device for tightly clamping the tapping drill bit, and a quick coupling part for rapidly replacing the clamping device. The quick coupling has the advantages that with the adoption of the quick coupling, the three-jaw annular grip for realizing the alignment of the fracture, the tapping drill bit for drilling the threaded bone holes, and the clamping device for tightly clamping the tapping drill bit are rapidly and accurately butted, so that the iatrogenic injury is reduced to the greatest extent, the operation time is shortened, the pain born by a patient is alleviated, and the operation is rapid and safe.
Description
Technical field
The present invention relates to orthopedic medical device technical field, particularly the rapid-acting coupling of a kind of orthopaedic medical treatment internal and external fixators.
Background technology
The various orthopedic medical devices being used for the treatment of four limbs backbone, intertrochanteric fracture and Hip fracture at present have had many progress, such as patent of invention ZL200710012279.5 " single side adjustable external fixing rack and combinationally use device "; Patent of invention ZL200810012533.6 " function type Colles's fracture combined fixator ", both provides good orthopedic medical device. Carry out between average of operation periods at the installation inside and outside fixing apparatus of orthopaedic medical treatment, the three-jaw annular of fracture reduction is grabbed, the threading drill bit of auger shell line bone hole, the brill jig three of card this threading drill bit tight must be docked, need corresponding special tool to match with it, could accurately dock, make surgical effect better. Can only docking by hand at present, operation is relatively not slow, very inconvenient yet.
Summary of the invention
It is an object of the invention to provide a kind of easy to use and can ensure to receive the rapid-acting coupling of the orthopaedic medical treatment internal and external fixators of better surgical effect, to reduce iatrogenic injury as far as possible, shorten operating time, alleviate the misery that patient to be born, make operation fast, complete safely.
The object of the present invention is achieved like this:
The rapid-acting coupling of the orthopaedic medical treatment internal and external fixators of the present invention, comprise the three-jaw annular maintaining the fracture reduction after resetting to grab, this fracture reduction position is carried out the threading drill bit of auger shell line bone hole, the brill jig of card this threading drill bit tight, change this rapid-acting coupling boring jig fast, synthetism nail or synthetism pin are delivered to the bitch flexible casing in described screw thread bone hole, back-out the pipe of back-outing of the disconnecting nail being arranged in described screw thread bone hole or disconnecting spicule, the stubborn bar of straight type is revolved in the left and right that pipe of back-outing with this mates mutually or the stubborn bar of ratchet is revolved in left and right, with revolve straight type about this and twist bar or left and right and revolve ratchet and twist short stubborn bar that bar matches or long twist bar, it is characterized in that described rapid-acting coupling is by steel-fastening pearl tapering spindle, pass perpendicularly through the card pin screw mandrel of this steel-fastening pearl tapering spindle, with the dress steel ball taper sheath that this steel-fastening pearl tapering spindle socket-connects, the spring being sleeved on this dress steel ball taper sheath, the degree of tightness steel ball sleeve being sleeved on this spring, the steel ball being located between this degree of tightness steel ball sleeve and steel-fastening pearl tapering spindle, connect this degree of tightness steel ball sleeve and the card pin screw of dress steel ball taper sheath, and the axis of cone overcoat socket-connected with the cylindrical portion of described steel-fastening pearl tapering spindle is formed.
It is provided with axially extending bore in the axle of described steel-fastening pearl tapering spindle, the middle section of this steel-fastening pearl tapering spindle is shell portion, one end is short cone section, the other end is oval cone segments, it is provided with close to oval cone segments place at this shell portion and it is perpendicular in axis silk hole, in this, match with described card pin screw mandrel in silk hole, this oval cone segments be provided with close to shell portion place be perpendicular to axis around this oval cone concave-curve groove of a week, this concave-curve groove is done to roll with described steel ball and is coordinated, in the brill card of this short cone section and described brill jig, in core tail end portion, group makes wringing fit,
Described card pin screw mandrel is made up of thread segment and shell portion, and the end face of this shell portion is provided with the screw edge of a knife,
The end of described card pin screw is the threaded rod of round boss, and the front portion of this threaded rod is thin circle bar, and this external diameter carefully justifying bar is less than the root footpath of described threaded rod, is provided with inner hexagonal hole on the end face of described round boss,
Described dress steel ball taper sheath is the step cylindrical sleeve being made up of thick external diameter section and thin external diameter section, the interior hole of this thick external diameter section and the drill pipe section wringing fit of described threading drill bit, afterbody in this thick external diameter section is provided with one to radial silk hole, the internal taper hole of this thin external diameter section mates with the oval cone segments of described steel-fastening pearl tapering spindle, tail end in this thin external diameter section is provided with and is perpendicular to axis and the U shape opening through with internal taper hole and external diameter, the termination of this U shape opening is semicircular arc, the shell portion of this U shape opening and described card pin screw mandrel is slidably matched, this U shape open bottom of this thin external diameter section and this corresponding be circumferentially provided with three equally distributed steel ball holes, running fit made by this steel ball hole and steel ball, the narrow shape groove communicated with internal taper hole it is provided with at the position corresponding with steel ball hole of this thin external diameter section, the thin round bar of this narrow shape groove and described card pin screw is slidably matched,
Described degree of tightness steel ball sleeve is the round pipe fitting of end with boss, being made up of taper hole section and cylindrical hole section in the middle of the outer taper hole section of the big tapering continued successively, Small Taper without boss end at this circle pipe fitting, in the middle of this Small Taper, the side of taper hole section is provided with a radial internal thread hole, there is a step outer end of this radial internal thread hole, the round boss of this step and described card pin screw is slidably matched, card pin screw thread bar is meshed with this internal thread hole
Described axis of cone overcoat is the round pipe fitting of end with boss, and interior hole is ladder hole, and macropore and the described degree of tightness steel ball interplanting in this ladder hole are slidably matched, and the aperture in this ladder hole and the mediate cylindrical section of described steel-fastening pearl tapering spindle make wringing fit.
It is an advantage of the invention that:
Owing to have employed the rapid-acting coupling of above-mentioned orthopaedic medical treatment internal and external fixators, the three-jaw annular of fracture reduction is grabbed, the threading drill bit of auger shell line bone hole, the brill jig three of card this threading drill bit tight is fast, accurately dock, iatrogenic injury can be reduced as far as possible, shorten operating time, alleviate the misery that patient to be born, make that operation is quick, safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of the rapid-acting coupling of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structural representation of steel ball tapering spindle,
Fig. 4 is the structural representation of steel ball taper sheath,
Fig. 5 is the B-B view of Fig. 4,
Fig. 6 is the structural representation of steel ball sleeve.
Embodiment
Below in conjunction with the embodiment given by accompanying drawing, the specific embodiment of the present invention is described further.
Prestige person as shown in figures 1 to 6, the rapid-acting coupling of the internal and external fixation instrument for orthopaedic medical treatment of the present invention, comprise the three-jaw annular maintaining the fracture reduction after resetting to grab, this fracture reduction position is carried out the threading drill bit of auger shell line bone hole, the brill jig of card this threading drill bit tight, change this rapid-acting coupling boring jig fast, synthetism nail or synthetism pin are delivered to the bitch flexible casing in described screw thread bone hole, back-out the pipe of back-outing of the disconnecting nail being arranged in described screw thread bone hole or disconnecting spicule, the stubborn bar of straight type is revolved in the left and right that pipe of back-outing with this mates mutually or the stubborn bar of ratchet is revolved in left and right, with revolve straight type about this and twist bar or left and right and revolve ratchet and twist short stubborn bar that bar matches or long twist bar, it is characterized in that described rapid-acting coupling is by steel-fastening pearl tapering spindle 6, pass perpendicularly through the card pin screw mandrel 5 of this steel-fastening pearl tapering spindle 6, with the dress steel ball taper sheath 2 that this steel-fastening pearl tapering spindle 6 socket-connects, the spring 3 being sleeved on this dress steel ball taper sheath 2, the degree of tightness steel ball sleeve 1 being sleeved on this spring 3, the steel ball being located between this degree of tightness steel ball sleeve 1 and steel-fastening pearl tapering spindle 2, connect this degree of tightness steel ball sleeve 1 and the card pin screw 4 of dress steel ball taper sheath 1, and the axis of cone overcoat 7 socket-connected with the cylindrical portion of described steel-fastening pearl tapering spindle 6 is formed,
Such as Fig. 1, shown in 2, it is provided with axially extending bore 8 in the axle of described steel-fastening pearl tapering spindle 6, the middle section of this steel-fastening pearl tapering spindle 6 is shell portion, one end is short cone section, the other end is oval cone segments, it is provided with close to oval cone segments place at this shell portion and it is perpendicular in axis silk hole 11, in this, match with described card pin screw mandrel 9 in silk hole 12, this oval cone segments be provided with close to shell portion place be perpendicular to axis around this oval cone concave-curve groove 12 of a week, this concave-curve groove 12 is done to roll with described steel ball and is coordinated, in the brill card of this short cone section and described brill jig, core tail end portion makes wringing fit,
Described card pin screw mandrel 5 is made up of thread segment and shell portion, and the end face of this shell portion is provided with the screw edge of a knife,
The end of described card pin screw 4 is the threaded rod of round boss, and the front portion of this threaded rod is thin circle bar, and this external diameter carefully justifying bar is less than the root footpath of described threaded rod, is provided with inner hexagonal hole on the end face of described round boss,
Such as Fig. 2, 3, shown in 4, described dress steel ball taper sheath 2 is the step cylindrical sleeve being made up of thick external diameter section and thin external diameter section, the interior hole of this thick external diameter section and the drill pipe section wringing fit of described threading drill bit, afterbody in this thick external diameter section is provided with one to radial silk hole, the internal taper hole of this thin external diameter section mates with the oval cone segments of described steel-fastening pearl tapering spindle 6, tail end in this thin external diameter section is provided with and is perpendicular to axis and the U shape opening 13 through with internal taper hole and external diameter, the termination of this U shape opening is semicircular arc, the shell portion of this U shape opening and described card pin screw mandrel is slidably matched, this U shape open bottom of this thin external diameter section and this corresponding be circumferentially provided with three equally distributed steel ball holes 8, running fit is made with steel ball in this steel ball hole 8, the narrow shape groove 9 communicated with internal taper hole it is provided with at the position corresponding with steel ball hole 8 of this thin external diameter section, this narrow shape groove 9 is slidably matched with the thin round bar of described card pin screw,
As shown in Figure 1,5, described degree of tightness steel ball sleeve 1 is the round pipe fitting of end with boss, being made up of taper hole section 15 and cylindrical hole section 16 in the middle of the outer taper hole section 14 of the big tapering continued successively, Small Taper without boss end at this circle pipe fitting, in the middle of this Small Taper, the side of taper hole section is provided with a radial internal thread hole, there is a step outer end of this radial internal thread hole, the round boss of this step and described card pin screw is slidably matched, and card pin screw thread bar is meshed with this internal thread hole
Such as Fig. 1, shown in 6, described axis of cone overcoat 7 is the round pipe fitting of end with boss, interior hole is ladder hole, macropore and the described degree of tightness steel ball sleeve 1 in this ladder hole are slidably matched, the aperture in this ladder hole and the mediate cylindrical section of described steel-fastening pearl tapering spindle make wringing fit, when pulling degree of tightness steel ball sleeve 1, the contraction of spring 3 makes the control of the cone that the internal diameter of steel ball disengaging degree of tightness steel ball sleeve 1 is less, stir steel-fastening pearl tapering spindle 6, steel ball just exits in the concave-curve groove 12 of steel-fastening pearl tapering spindle 6, get final product sharp separation rapid-acting coupling and bore jig, otherwise can connect fast.Owing to being that cone-shaped body connects, ensure that the stability of coaxial line.
Claims (5)
1. the rapid-acting coupling of an orthopaedic medical treatment internal and external fixators, comprise the three-jaw annular maintaining the fracture reduction after resetting to grab, this fracture reduction position is carried out the threading drill bit of auger shell line bone hole, the brill jig of card this threading drill bit tight, change this rapid-acting coupling boring jig fast, synthetism nail or synthetism pin are delivered to the bitch flexible casing in described screw thread bone hole, back-out the pipe of back-outing of the disconnecting nail being arranged in described screw thread bone hole or disconnecting spicule, the stubborn bar of straight type is revolved in the left and right that pipe of back-outing with this mates mutually or the stubborn bar of ratchet is revolved in left and right, with revolve straight type about this and twist bar or left and right and revolve ratchet and twist short stubborn bar that bar matches or long twist bar, it is characterized in that described rapid-acting coupling is by steel-fastening pearl tapering spindle, pass perpendicularly through the card pin screw mandrel of this steel-fastening pearl tapering spindle, with the dress steel ball taper sheath that this steel-fastening pearl tapering spindle socket-connects, the spring being sleeved on this dress steel ball taper sheath, the degree of tightness steel ball sleeve being sleeved on this spring, the steel ball being located between this degree of tightness steel ball sleeve and steel-fastening pearl tapering spindle, connect this degree of tightness steel ball sleeve and the card pin screw of dress steel ball taper sheath, and the axis of cone overcoat socket-connected with the cylindrical portion of described steel-fastening pearl tapering spindle is formed.
2. the rapid-acting coupling of orthopaedic medical treatment internal and external fixators according to claim 1, it is characterized in that being provided with axially extending bore in the axle of described steel-fastening pearl tapering spindle, the middle section of this steel-fastening pearl tapering spindle is shell portion, one end is short cone section, the other end is oval cone segments, it is provided with close to oval cone segments place at this shell portion and it is perpendicular in axis silk hole, in this, match with described card pin screw mandrel in silk hole, this oval cone segments be provided with close to shell portion place be perpendicular to axis around this oval cone concave-curve groove of a week, this concave-curve groove is done to roll with described steel ball and is coordinated, in the brill card of this short cone section and described brill jig, in core tail end portion, group makes wringing fit.
3. the rapid-acting coupling of orthopaedic medical treatment internal and external fixators according to claim 1, it is characterised in that described card pin screw mandrel is made up of thread segment and shell portion, and the end face of this shell portion is provided with the screw edge of a knife,
The end of described card pin screw is the threaded rod of round boss, and the front portion of this threaded rod is thin circle bar, and this external diameter carefully justifying bar is less than the root footpath of described threaded rod, is provided with inner hexagonal hole on the end face of described round boss.
4. the rapid-acting coupling of orthopaedic medical treatment internal and external fixators according to claim 1, it is characterized in that described dress steel ball taper sheath is the step cylindrical sleeve being made up of thick external diameter section and thin external diameter section, the interior hole of this thick external diameter section and the drill pipe section wringing fit of described threading drill bit, afterbody in this thick external diameter section is provided with one to radial silk hole, the internal taper hole of this thin external diameter section mates with the oval cone segments of described steel-fastening pearl tapering spindle, tail end in this thin external diameter section is provided with and is perpendicular to axis and the U shape opening through with internal taper hole and external diameter, the termination of this U shape opening is semicircular arc, the shell portion of this U shape opening and described card pin screw mandrel is slidably matched, this U shape open bottom of this thin external diameter section and this corresponding be circumferentially provided with three equally distributed steel ball holes, running fit made by this steel ball hole and steel ball, the narrow shape groove communicated with internal taper hole it is provided with at the position corresponding with steel ball hole of this thin external diameter section, the thin round bar of this narrow shape groove and described card pin screw is slidably matched.
5. the rapid-acting coupling of orthopaedic medical treatment internal and external fixators according to claim 1, it is characterized in that described degree of tightness steel ball sleeve is the round pipe fitting of end with boss, being made up of taper hole section and cylindrical hole section in the middle of the outer taper hole section of the big tapering continued successively, Small Taper without boss end at this circle pipe fitting, in the middle of this Small Taper, the side of taper hole section is provided with a radial internal thread hole, there is a step outer end of this radial internal thread hole, the round boss of this step and described card pin screw is slidably matched, card pin screw thread bar is meshed with this internal thread hole
Described axis of cone overcoat is the round pipe fitting of end with boss, and interior hole is ladder hole, and macropore and the described degree of tightness steel ball interplanting in this ladder hole are slidably matched, and the aperture in this ladder hole and the mediate cylindrical section of described steel-fastening pearl tapering spindle make wringing fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410626490.6A CN105640624A (en) | 2014-11-10 | 2014-11-10 | Quick coupling of medical internal and external fixators for department of orthopaedics |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410626490.6A CN105640624A (en) | 2014-11-10 | 2014-11-10 | Quick coupling of medical internal and external fixators for department of orthopaedics |
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| CN105640624A true CN105640624A (en) | 2016-06-08 |
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| CN201410626490.6A Pending CN105640624A (en) | 2014-11-10 | 2014-11-10 | Quick coupling of medical internal and external fixators for department of orthopaedics |
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| CN (1) | CN105640624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113017812A (en) * | 2021-02-26 | 2021-06-25 | 仉建国 | Broken rod connector and system |
-
2014
- 2014-11-10 CN CN201410626490.6A patent/CN105640624A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113017812A (en) * | 2021-02-26 | 2021-06-25 | 仉建国 | Broken rod connector and system |
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Application publication date: 20160608 |
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| WD01 | Invention patent application deemed withdrawn after publication |