CN203915012U - A kind of femur head necrosis boring decompression is bored and is supporting with bone cement enhancing rod - Google Patents
A kind of femur head necrosis boring decompression is bored and is supporting with bone cement enhancing rod Download PDFInfo
- Publication number
- CN203915012U CN203915012U CN201420314470.0U CN201420314470U CN203915012U CN 203915012 U CN203915012 U CN 203915012U CN 201420314470 U CN201420314470 U CN 201420314470U CN 203915012 U CN203915012 U CN 203915012U
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- bone cement
- rod
- head necrosis
- femur
- break
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Abstract
This utility model provides a kind of femur head necrosis boring decompression brill and supporting with bone cement enhancing rod, comprise that soft brill and bone cement strengthen rod, soft brill front end is provided with spring and drill bit, soft brill outside is provided with bit guide, it in bit guide, is break-in conduit, break-in catheter proximal end forms lateral openings after turning round, and in bone cement enhancing rod, is provided with central passage, and front end side is provided with multiple side openings; The lateral openings direction of described break-in catheter proximal end becomes 120～140 degree angles with main pipe direction; Bone cement strengthens excellent rear end and is provided with screw thread; Bit guide rear end is provided with handle.This utility model is simple in structure, easy and simple to handle, be applicable to I-II option share head necrosis, no matter femur head necrosis size, all can make femur head necrosis part thoroughly reduce pressure and not reduce neck of femur sclerotin intensity, being screwed into femoral head bone cement and strengthening rod after having reduced pressure, low sticky bone cement is injected in pressurization, after bone cement sclerosis, can strengthen femoral head intensity, delay or stop necrotic femoral head to destroy and subside.
Description
Technical field
This utility model belongs to medical instruments field, relates in particular to a kind of femur head necrosis boring decompression brill and supporting with bone cement enhancing rod.
Background technology
Ischemic necrosis of femoral head is the destructive disease of carrying out property of one, be apt to occur in 20-50 year adult, if do not take positive treatment, most conditions of patients can continue progress, finally cause subchondral bone and articular step-off, occur that activity of daily living is limited, even lose, need to row Replacement of Hip Joint, cause the painful and heavy financial burden of huge body to patient.The reasons such as at present femoral head osteonecrosis is without special effect medicine therapeutic, and also without unified therapeutic method of surgery, great majority operation is because wound strengthens, and the high and curative effect of surgical technic requirement is unpredictable cannot be promoted clinically.The Minimally Invasive Surgery of at present femoral head osteonecrosis relatively being commonly used comprises Drilling decompression (can bone grafting or implant various cytokines), and tantalum rod is implanted and supported two kinds.Tradition Drilling decompression comprises knows a little about two kinds of single hole decompression and the many empty decompressions of thin passage, above two kinds of each relief passages of mode all need through neck of femur, as relief passage quantity does not have thorough effect of easing stress at least, increase relief passage and reduce neck of femur and femoral head intensity, easily cause neck of femur and fracture of the femoral head, can partly increase femoral head intensity although carry out bone grafting after boring decompression, but thin passage decompression bone grafting difficulty, know a little about decompression bone grafting and be confined in passage, cannot reach whole necrotic zone.Tantalum rod is implanted to support and can be strengthened femoral head intensity, delays the collapse of the femoral head time, but tantalum rod price is high, and ordinary people is difficult to bear, and femur head necrosis area when larger tantalum rod be difficult to whole necrotic area to be supported, curative effect declines to a great extent.It is one of direction for the treatment of at present femoral head osteonecrosis that application bone cement is filled femur head necrosis district, but adopt cut joint more at present, and femoral head is filled bone cement after windowing and striking off slough, and wound is larger, and operating difficulty is large, is difficult to promote.
Utility model content
This utility model provides a kind of femur head necrosis boring decompression brill and supporting with bone cement enhancing rod in order to address the above problem.
The technical solution of the utility model is achieved in that a kind of femur head necrosis boring decompression brill and supporting with bone cement enhancing rod, comprise that soft brill and bone cement strengthen rod, soft brill front end is provided with spring and drill bit, soft brill outside is provided with bit guide, it in bit guide, is break-in conduit, break-in catheter proximal end forms lateral openings after turning round, and in bone cement enhancing rod, is provided with central passage, and front end side is provided with multiple side openings;
The lateral openings direction of described break-in catheter proximal end becomes 120～140 degree angles with main pipe direction;
Bone cement strengthens excellent rear end and is provided with screw thread;
Bit guide rear end is provided with handle.
The beneficial effects of the utility model are: this utility model is simple in structure, easy and simple to handle, be applicable to I-II option share head necrosis, no matter femur head necrosis size, all can make femur head necrosis part thoroughly reduce pressure and not reduce neck of femur intensity, being screwed into femoral head bone cement and strengthening rod after having reduced pressure, low sticky bone cement is injected in pressurization, after bone cement sclerosis, can strengthen femoral head intensity, delay or stop necrotic femoral head to subside.
Brief description of the drawings
Fig. 1 is the structural representation that this utility model decompression is bored;
Fig. 2 is that this utility model bone cement strengthens excellent structural representation;
Fig. 3 is that the A-A of this utility model Fig. 2 is to generalized section;
Fig. 4 is that this utility model bone cement strengthens excellent left side view;
Fig. 5 is the applicable necrotic femoral head boring decompression schematic diagram of this utility model;
Fig. 6 is that the B-B of this utility model Fig. 5 is to generalized section.
Part explanation: 1, handle, 2, break-in conduit, 3, femur, 4, femur hole, 5, bit guide, 6, soft brill, 7, spring, 8, drill bit, 9, screw thread, 10, side opening, 11, bone cement strengthens rod, and 12, central passage, 13, lateral openings, 14, interior hexagonal groove.
Detailed description of the invention
For Comprehension and Implementation better, below in conjunction with accompanying drawing, this utility model is further described: a kind of femur head necrosis boring decompression is bored and be supporting with bone cement enhancing rod, comprise that soft brill 6 and bone cement strengthen rod 11, soft brill 6 front ends are provided with spring 7 and drill bit 8, soft brill 6 outsides are provided with bit guide 5, it in bit guide 5, is break-in conduit 2, after turning round, break-in conduit 2 front ends form lateral openings 13, lateral openings 13 directions become 130 degree angles with main pipe direction, drill bit 8 can be by the lateral openings 13 of break-in conduit 2 front ends, after spring 7 turns round, can promote drill bit 8 and continue straight ahead, break-in conduit 2 rear ends are provided with handle 1, can change by operating grip 1 direction of the lateral openings 13 of break-in conduit 2 front ends, to get out the femur hole 4 of different directions, in bone cement enhancing rod 11, be provided with central passage 12, front end side is provided with multiple side openings 10, rear end is provided with screw thread 9, tail end is interior hexagonal groove 14.
Patient's dorsal position, below femoral greater trochanter, 5cm makes the through femur of the long longitudinal incision of 1cm, in suitable neck of femur, lower 1/3 pierces common guide pin, side position perspective confirms that guide pin is positioned at central authorities, do bone passage with diameter 1cm core drill through apart from femoral head subchondral bone 0.5cm place, exit core drill and guide pin, insert bit guide 5, soft brill 6 is placed in bit guide 5, under 2 guiding of break-in conduit, soft brill 6 reduces pressure in femoral head internal drilling, note not boring femoral head subchondral bone, change the direction of the lateral openings 13 of break-in conduit 2 front ends by operating grip 1, can hole to femoral head different directions, change break-in conduit 2 degree of depth, can in femoral head, different aspects boring reduce pressure, thoroughly decompression after the femur hole 4 of femoral head different directions is bored well, exit soft brill 6 and bit guide 5, be screwed into bone cement and strengthen rod 11, notice that bone cement strengthens 11 far away sections of side opening 10 parts of rod upwards, strengthen excellent 11 tail end central passages 12 at bone cement and connect bone cement injector, low sticky bone cement is strengthened to rod 11 central passage 12 and side opening 10 through bone cement to be injected in the femur hole 4 that femoral head bores, make it to be full of each bone road in femoral head, after bone cement sclerosis, sew up the incision, finish operation.Increase for avoiding bone cement when injection femoral head being intrinsic pressure, can be before injection strengthening above rod with 1-2 vent of thin Kirschner wire brill.This utility model is simple in structure, easy and simple to handle, belongs to Minimally Invasive Surgery, just can complete operation through simple study, be convenient to promote at basic hospital.
Claims (4)
1. a femur head necrosis boring decompression brill and supporting with bone cement enhancing rod, comprise that soft brill (6) and bone cement strengthen rod (11), soft brill (6) front end is provided with spring (7) and drill bit (8), it is characterized in that soft brill (6) outside is provided with bit guide (5), it in bit guide (5), is break-in conduit (2), after turning round, break-in conduit (2) front end forms lateral openings (13), in bone cement enhancing rod (11), be provided with central passage (12), front end side is provided with multiple side openings (10).
2. a kind of femur head necrosis boring decompression according to claim 1 is bored and is supporting with bone cement enhancing rod, it is characterized in that lateral openings (13) direction of described break-in conduit (2) front end becomes 120～140 degree angles with main pipe direction.
3. a kind of femur head necrosis boring decompression according to claim 1 is bored and is supporting with bone cement enhancing rod, it is characterized in that bone cement strengthens rod (11) rear end and is provided with screw thread (9).
4. a kind of femur head necrosis boring decompression according to claim 1 is bored and is supporting with bone cement enhancing rod, it is characterized in that bit guide (5) rear end is provided with handle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314470.0U CN203915012U (en) | 2014-06-13 | 2014-06-13 | A kind of femur head necrosis boring decompression is bored and is supporting with bone cement enhancing rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314470.0U CN203915012U (en) | 2014-06-13 | 2014-06-13 | A kind of femur head necrosis boring decompression is bored and is supporting with bone cement enhancing rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203915012U true CN203915012U (en) | 2014-11-05 |
Family
ID=51810907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420314470.0U Expired - Fee Related CN203915012U (en) | 2014-06-13 | 2014-06-13 | A kind of femur head necrosis boring decompression is bored and is supporting with bone cement enhancing rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203915012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103989502A (en) * | 2014-06-13 | 2014-08-20 | 王京生 | Femoral head necrosis drilling and decompression drill and bone cement stiffening bar matched with drill in use |
-
2014
- 2014-06-13 CN CN201420314470.0U patent/CN203915012U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103989502A (en) * | 2014-06-13 | 2014-08-20 | 王京生 | Femoral head necrosis drilling and decompression drill and bone cement stiffening bar matched with drill in use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20160613 |