CN202015221U - Dismal bone core extraction device capable of automatically cutting - Google Patents
Dismal bone core extraction device capable of automatically cutting Download PDFInfo
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- CN202015221U CN202015221U CN2011200357805U CN201120035780U CN202015221U CN 202015221 U CN202015221 U CN 202015221U CN 2011200357805 U CN2011200357805 U CN 2011200357805U CN 201120035780 U CN201120035780 U CN 201120035780U CN 202015221 U CN202015221 U CN 202015221U
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Abstract
A dismal bone core extraction device capable of automatically cutting belongs to the technical field of orthopedic surgical equipment and is used for integrally extracting a bone core with the length larger than the diameter of the bone core by a few of times. The technical scheme includes that the dismal bone core extraction device comprises a positioning needle, a soft tissue separator, a positioning sleeve, a way opening trepan, a cutting trepan and a trepan handle, both the way opening trepan and the cutting trepan are cylinders, the end surface of the wall of the dismal cylinder is provided with cutting teeth arrayed circumferentially, two pin holes are arranged on the wall of the proximal cylinder, inner diameters and outer diameters of the cylinders of the way opening trepan and the cutting trepan are identical, obliquely arrayed cut-off teeth are fixed onto the inner wall of the lower end of the cutting trepan, and graduations are arranged on surfaces of outer walls of the cylinders along directions of long axes. The dismal bone core extraction device solves the difficult problem that a bone core with the length larger than the diameter of the bone core by a few of or even dozens of times cannot be integrally extracted dismally in existing orthopedic surgery, has pioneering significance, is mainly used for extracting a bone core with a complete outline from a thick bone via a blind hole, and is particularly suitable for extracting bone cores of intumescent portions of proximal or dismal femurs or proximal tibias of human bodies.
Description
Technical field
This utility model relates to the bone core extraction element in a kind of bone surgery treatment, particularly relate to a kind of device that can accurately extract length much larger than diameter several times bone core, the blind hole that is particularly useful for thicker bone piece such as near end of thighbone and far-end and proximal tibia etc. is extracted the bone core, belongs to the bone surgery equipment technical field.
Background technology
In bone surgery, the bone core that usually needs to take out patient's skeleton is used for bone transplanting or bone pathology inspection, needs the extraction element of special use when extracting the bone core.At present, these extraction elements can be divided into two types according to the bone core form that extracts: the bone core that first type of extraction element extracts is Powdered bone material, and the bone core that second type extraction element extracts is to have the cylindrical block shape bone material of bone grafting character preferably.Yet the device of second type extraction bone core is owing to lack bone core distal cut device, can't complete extraction length greater than surplus diameter several times even ten times cylindrical bone core, can not satisfy and be used for the needs that bone is transplanted or bone pathology is checked, a kind of new bone core extraction element of necessary exploitation, extract the bone core of bigger length, to satisfy clinical needs.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiency that existing bone taking device exists, provide a kind of far-end to cut bone core extraction element automatically, this device can cut bone core far-end, complete extraction is several times as much as the bone core of bone core diameter length, satisfy bone and transplant needs, when getting bone, do not destroy the offside cortical bone.
The technical scheme that solves the problems of the technologies described above is:
A kind of far-end cuts bone core extraction element automatically, it comprises the open circuit trepan, cutting trepan and drillstock, open circuit trepan and cutting trepan are the hollow thin-wall cylinder, the cylinder body wall end face upper edge circumferential row of the far-end of cylinder is shown cutting teeth, two pin-and-holes are arranged on the cylinder body wall of the near-end of cylinder, two pin-and-holes are relative along the diameter of cylinder in cylinder body wall both sides, be inserted with lock pin in the pin-and-hole, open circuit trepan and the internal diameter that cuts the trepan cylinder, external diameter is identical, on the inwall of cutting trepan lower end, be fixed with the cut-out tooth of arranged askew, the tooth height of cutting off tooth is the 1/4-2/5 of cylinder internal diameter, the transverse tooth thickness degree is more than or equal to cylindrical wall thickness, tine length is the 1/4-1 of cylinder internal diameter, and cutting off tooth 7 angular bisectors is 10o-80o with cutting trepan 2 major axis angle a, and there is the syndeton that matches with lock pin the lower end of drillstock.
Said distal ends is cut bone core extraction element automatically, the cylinder height of described open circuit trepan, cutting trepan is 100-250mm, interior diameter is 5mm-20mm, wall thickness is 0.5mm-2mm, have on the outer wall surface of cylinder along the equally distributed scale of long axis direction, open circuit trepan, cutting trepan graduated terminal position distance circle cylindrical shell bottom margin are accurately identical.
Said distal ends is cut bone core extraction element automatically, described drillstock is a cylinder, cylindrical external diameter equates with the internal diameter of the cylinder of open circuit trepan, cutting trepan, the cylindrical front end of drillstock has transverse concave groove, groove is positioned on the diameter of cylinder end face, and the width and the lock pin of groove are complementary, and there is the spanner of horizontal T shape the cylindrical rear end of drillstock, or drill chuck handle is longitudinally arranged, the dop of drill chuck handle and external electric drill is complementary.
Said distal ends is cut bone core extraction element automatically, and it also has positioning needle, and positioning needle is medical drill bit or Kirschner wire.
Said distal ends is cut bone core extraction element automatically, it also has the soft tissue separator, the soft tissue separator is hollow heavy wall cylinder, external diameter equates with the cylinder internal diameter of cutting trepan, on the cylinder central axis locating hole is arranged, the internal diameter of locating hole and the external diameter of positioning needle are complementary, and cylindrical far-end is a cone shape.
Said distal ends is cut bone core extraction element automatically, it also has locating sleeve, locating sleeve is the thin-walled hollow cylindrical tube, the internal diameter of locating sleeve equates with the cylinder external diameter of cutting trepan, the cylinder body wall end face upper edge circumferential row of locating sleeve cylinder far-end is shown cutting teeth, on the cylinder outer wall of locating sleeve cylinder far-end tapping screw thread is arranged, horizontal T shape spanner is arranged on the cylinder outer wall of locating sleeve cylinder near-end.
This utility model has solved in the bone surgery and can't have initiative meaning in the far-end complete extraction length difficult problem greater than surplus diameter several times even ten times bone core, and its usefulness is:
1. this utility model adopts the Wicresoft's bone core extraction element with guiding and measurement structure, extracting the bone core from thick bone bulk is the method that a kind of " blind hole " extracts the bone core, do not break the structure of surrounding bone material, particularly preserve the integrity on the bone core long axis direction offside bone material surface of extracting, avoided damaging the complication that articular cartilage attached to it and structures such as tendon, ligament and synovial membrane are brought.
2. this utility model can extract bone core length and can reach more than the 100mmm, can extract the bone core that same category of device can't extract the degree of depth.
3. operative incision of the present utility model is about 10mm-30mm only, is that a kind of Wicresoft extracts bone core method, and post-operative recovery is fast, and incisional scar is little.
4. this utility model can accurately extract the bone core of desired area and length.
5. this utility model can be set up bone surgery treatment passage after extracting the bone core, carries out more deep treatment or inspection.
6. this utility model can use manual or electronic mode to operate, and modular construction is simple, simple, intuitive, easy to operate.
7. this utility model can be reused, and reduces medical treatment cost and correlative charges.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2, the 3rd, the outside drawing of open circuit trepan of the present utility model and cutaway view;
Fig. 4,5, the 6th, the outside drawing of cutting trepan of the present utility model, cutaway view and axial view;
Fig. 7, the 8th, two kinds of structural representations of drillstock of the present utility model;
Fig. 9, the 10th, the outside drawing of soft tissue separator of the present utility model and cutaway view;
Figure 11, the 12nd, the outside drawing of locating sleeve of the present utility model and cutaway view;
Figure 13,14,15,16,17, the 18th, enforcement view of the present utility model.
Labelling is as follows among the figure: open circuit trepan 1, cutting trepan 2, drillstock 3, cutting teeth 4, pin-and-hole 5, lock pin 6, cut-out tooth 7, scale 8, groove 9, spanner 10, card handle 11, positioning needle 12, soft tissue separator 13, locating hole 14, locating sleeve 15, tapping screw thread 16, T type spanner 17, bone core 18.
The specific embodiment
This utility model comprises that cutting bone core extracts part, leader, measure portion and power drive part.
Cutting bone core extracts part and is made up of open circuit trepan 1 and cutting trepan 2.
Show among the figure that open circuit trepan 1 and cutting trepan 2 are the hollow thin-wall cylinder, cylinder height 100-250mm, interior diameter are 5mm-20mm, and wall thickness is 0.5mm-2mm.The cylinder body wall end face upper edge circumferential row of the far-end of cylinder is shown the cutting teeth 4 to the bone material perforation.Have 5, two pin-and-holes 5 of two pin-and-holes relative along the diameter of cylinder in cylinder body wall both sides on the cylinder body wall of the near-end of cylinder, be inserted with lock pin 6 in the pin-and-hole 5, the effect of pin-and-hole 5 and lock pin 6 is can refute to connect spanner and manually advance or connect electric-powered.
On the inwall of cutting trepan 2 lower ends, be fixed with the cut-out tooth 7 of arranged askew, the tooth height of cutting off tooth 7 is the 1/4-2/5 of cylinder internal diameter, the transverse tooth thickness degree is identical with cylindrical wall thickness or big slightly, tine length is the 1/4-1 of cylinder internal diameter, the effect of cutting off tooth 7 is when the rotation of cutting trepan 2 original places bone core 18 bottom transverse to be cut off, separate with skeleton, so that take out bone core 18.
Show among the figure that measure portion is to have along the equally distributed scale 8 of long axis direction on the outer wall surface of open circuit trepan 1 and cutting trepan 2 cylinders.Open circuit trepan 1 and to cut the terminal position distance circle cylindrical shell bottom margin of the scale 8 on trepan 2 outer walls accurately identical.
Show guide portion subpackage positioning needle 12, soft tissue separator 13 and locating sleeve 15 among the figure.
Positioning needle 12 is medical diameter 1mm-2mm drill bit or Kirschner wire.
Locating sleeve 15 is the thin-walled hollow cylinder, locating sleeve 15 internal diameters equate with the external diameter of cutting trepan 2, length 60mm-100mm, the cylinder body wall end face upper edge circumferential row of cylinder far-end is shown cutting teeth 4, in far-end 10-30mm, tapping screw thread 16 is arranged on the cylinder outer wall, horizontal T shape spanner 17 is arranged on the cylinder outer wall of locating sleeve cylinder near-end.
Show among the figure that power drive partly comprises lock pin 6, drillstock 3.
The diameter of lock pin 6 with for the pin-and-hole 5 on open circuit trepan 1 and the cutting trepan 2 is complementary, be inserted in the pin-and-hole 5, be used for being connected with drillstock 3.Drillstock 3 is a cylinder, cylindrical external diameter equates with the internal diameter of the cylinder of open circuit trepan 1, cutting trepan 2, drillstock 3 cylindrical front ends have transverse concave groove 9, groove 9 is positioned on the diameter of cylinder end face, the width of groove 9 and described lock pin 6 are complementary, there is the spanner 10 of horizontal T shape drillstock 3 cylindrical rear ends, or drill chuck handle 11 is longitudinally arranged, and drill chuck handle 11 is complementary with the dop of external electric drill.During use, front end insertion open circuit trepan 1 or cutting trepan 2 rear ends with drillstock 3 make groove 9 clamp lock pin 6.When adopting manual mode, rotating spanner 10 rotates open circuit trepan 1 or cutting trepan 2; When adopting electronic mode, drill chuck handle 11 is connected with the dop of electric drill, uses electric drill to rotate open circuit trepan 1 or cutting trepan 2.
The above all devices all adopts the medical alloy material to make, and heat-treats, to improve its hardness and to regulate its toughness.
Figure 13,14,15,16,17, the 18th, enforcement view of the present utility model.Show among the figure that the orthopedist operates by following step:
1. locate in the centre-drilling hole of getting bone core by positioning needle 12, X-ray machine blocks positioning needle 12 at the about 50mm of astragalus face place after having an X-rayed the satisfaction of position, positive side position.
2. be that central line incision length is 10mm-30mm skin with positioning needle 12, squeeze into soft tissue separator 13, separate the through surface of bone of surrounding soft tissue, end can be seen positioning needle 12 tail ends.
3. under 13 guiding of soft tissue separator, locating sleeve 15 is screwed in the bone degree of depth 10mm-20mm along orientation; Take out positioning needle 12 and soft tissue separator 13.
4. use open circuit trepan 1 to penetrate locating sleeve 15, bore and measure 180o behind the nearside cortical bone and advance drilling depth, select suitable far-end to cut bone core extraction element automatically according to the degree of depth.
Measure the method that 180o advances drilling depth: at first, open circuit trepan 1 chapter of record abutment sleeve 15 indications; Then, use 10 pairs of trepans of manual wrench axially evenly to pressurize and Rotate 180 o; At last, write down open circuit trepan 1 chapter of abutment sleeve indication this moment and it is deducted initial scale, promptly draw " 180o advances drilling depth ".
The method of selecting far-end to cut bone core extraction element automatically:, select to cut off the close far-end in tooth 7 angles of inclination and cut bone core extraction element automatically according to " 180o advances drilling depth " ratio with open circuit trepan 1 internal diameter.It is 30o, 45o and three kinds of specifications of 60o with the angle commonly used of cutting trepan 2 major axis angle a that tooth 7 angular bisectors are cut off in suggestion, if " 180o advances drilling depth " equals 1/2 with the ratio of open circuit trepan 1 internal diameter, then select 30o, if ratio equals 1, then select 45o, if ratio equals 2, then select 60o.
5. use far-end to cut the bone core that bone core extraction element extracts preseting length automatically, open circuit trepan 1 chapter of abutment sleeve 15 indications when at first writing down far-end and cutting bone core extraction element inscribe broken teeth 7 contact nearside cortical bone automatically, identical strength and method cut the degree of depth that the propelling of bone core extraction element sets automatically with far-end when using with " measure 180o and advance drilling depth ", and far-end is cut bone core extraction element automatically keep this degree of depth rotation 360o, can extract required bone core 18.
6. using thick Kirschner wire etc. that bone core 18 is cut bone core extraction element proximal port automatically from far-end releases promptly to finish and extracts 18 operations of bone core.
The utility model proposes the device that far-end has the extraction bone core of automatic cutting function, be mainly used in the bone surgery treatment and from thick bone piece, extract the complete bone core of profile, be specially adapted to extract near end of thighbone or far-end and expand the bone core of part by blind hole.This utility model possesses guiding and measurement function simultaneously, can accurately extract the bone core of the institute's position that requires and length, extracts the operating walk way that capable osseous tunnel behind the bone core can be used as further operative treatment.
Claims (6)
1. a far-end cuts bone core extraction element automatically, it is characterized in that: it comprises open circuit trepan [1], cutting trepan [2] and drillstock [3], open circuit trepan [1] and cutting trepan [2] are the hollow thin-wall cylinder, the cylinder body wall end face upper edge circumferential row of the far-end of cylinder is shown cutting teeth [4], two pin-and-holes [5] are arranged on the cylinder body wall of the near-end of cylinder, two pin-and-holes [5] are relative along the diameter of cylinder in cylinder body wall both sides, be inserted with lock pin [6] in the pin-and-hole [5], open circuit trepan [1] and the internal diameter that cuts trepan [2] cylinder, external diameter is identical, on the inwall of cutting trepan [2] lower end, be fixed with the cut-out tooth [7] of arranged askew, the tooth height of cutting off tooth [7] is the 1/4-2/5 of cylinder internal diameter, the transverse tooth thickness degree is more than or equal to cylindrical wall thickness, tine length is the 1/4-1 of cylinder internal diameter, cutting off tooth [7] angular bisector is 10o-80o with cutting trepan [2] major axis angle a, and there is the syndeton that matches with lock pin [6] lower end of drillstock [3].
2. far-end according to claim 1 cuts bone core extraction element automatically, it is characterized in that: the cylinder height of described open circuit trepan [1], cutting trepan [2] is 100-250mm, interior diameter is 5mm-20mm, wall thickness is 0.5mm-2mm, have on the outer wall surface of cylinder along the equally distributed scale of long axis direction [8], open circuit trepan [1], cutting trepan [2] graduated terminal position distance circle cylindrical shell bottom margin are accurately identical.
3. far-end according to claim 2 cuts bone core extraction element automatically, it is characterized in that: described drillstock [3] is a cylinder, cylindrical external diameter equates with the internal diameter of the cylinder of open circuit trepan [1], cutting trepan [2], the cylindrical front end of drillstock [3] has transverse concave groove [9], groove [9] is positioned on the diameter of cylinder end face, the width of groove [9] and lock pin [6] are complementary, there is the spanner [10] of horizontal T shape the cylindrical rear end of drillstock [3], or drill chuck handle [11] is longitudinally arranged, drill chuck handle [11] is complementary with the dop of external electric drill.
4. far-end according to claim 3 cuts bone core extraction element automatically, it is characterized in that: it also has positioning needle [12], and positioning needle [12] is medical drill bit or Kirschner wire.
5. far-end according to claim 4 cuts bone core extraction element automatically, it is characterized in that: it also has soft tissue separator [13], soft tissue separator [13] is hollow heavy wall cylinder, external diameter equates with the cylinder internal diameter of cutting trepan [2], locating hole [14] is arranged on the cylinder central axis, the external diameter of the internal diameter of locating hole [14] and positioning needle [12] is complementary, and cylindrical far-end is a cone shape.
6. far-end according to claim 7 cuts bone core extraction element automatically, it is characterized in that: it also has locating sleeve [15], locating sleeve [15] is the thin-walled hollow cylindrical tube, the internal diameter of locating sleeve [15] equates with the cylinder external diameter of cutting trepan [2], locating sleeve [15]] the cylinder body wall end face upper edge circumferential row of cylinder far-end shows cutting teeth [4], on the cylinder outer wall of locating sleeve [15] cylinder far-end tapping screw thread [16] is arranged, horizontal T shape spanner [17] is arranged on the cylinder outer wall of locating sleeve [15] cylinder near-end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200357805U CN202015221U (en) | 2011-02-10 | 2011-02-10 | Dismal bone core extraction device capable of automatically cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200357805U CN202015221U (en) | 2011-02-10 | 2011-02-10 | Dismal bone core extraction device capable of automatically cutting |
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| Publication Number | Publication Date |
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| CN202015221U true CN202015221U (en) | 2011-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200357805U Expired - Lifetime CN202015221U (en) | 2011-02-10 | 2011-02-10 | Dismal bone core extraction device capable of automatically cutting |
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| CN (1) | CN202015221U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102038537A (en) * | 2011-02-10 | 2011-05-04 | 孙涛 | Distal automatic cutting bone core extraction device |
| CN102579109A (en) * | 2012-03-14 | 2012-07-18 | 吴东 | Mechanical bone extractor with stop unit |
| CN104510505A (en) * | 2015-01-12 | 2015-04-15 | 周健 | Centrum sampling trephine |
| CN104523304A (en) * | 2015-01-12 | 2015-04-22 | 杨雪飞 | Medical sclerotin sampling trepan |
| CN104523303A (en) * | 2015-01-12 | 2015-04-22 | 曹兰 | Medical sclerotin sampling trephine |
| KR101870921B1 (en) | 2016-11-24 | 2018-06-25 | 서울대학교산학협력단 | Probe of aspirating biological tissue, and apparatus of aspirating biological tissue having the same |
| CN109528265A (en) * | 2018-12-19 | 2019-03-29 | 北京天星博迈迪医疗器械有限公司 | Diameter can be changed drill bit and electric drill |
| CN113244517A (en) * | 2021-07-05 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Bone tissue puncture needle for particle implantation |
-
2011
- 2011-02-10 CN CN2011200357805U patent/CN202015221U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102038537A (en) * | 2011-02-10 | 2011-05-04 | 孙涛 | Distal automatic cutting bone core extraction device |
| CN102579109A (en) * | 2012-03-14 | 2012-07-18 | 吴东 | Mechanical bone extractor with stop unit |
| CN104510505A (en) * | 2015-01-12 | 2015-04-15 | 周健 | Centrum sampling trephine |
| CN104523304A (en) * | 2015-01-12 | 2015-04-22 | 杨雪飞 | Medical sclerotin sampling trepan |
| CN104523303A (en) * | 2015-01-12 | 2015-04-22 | 曹兰 | Medical sclerotin sampling trephine |
| CN104510505B (en) * | 2015-01-12 | 2016-11-16 | 周健 | Vertebral body sampling trepan |
| KR101870921B1 (en) | 2016-11-24 | 2018-06-25 | 서울대학교산학협력단 | Probe of aspirating biological tissue, and apparatus of aspirating biological tissue having the same |
| CN109528265A (en) * | 2018-12-19 | 2019-03-29 | 北京天星博迈迪医疗器械有限公司 | Diameter can be changed drill bit and electric drill |
| CN113244517A (en) * | 2021-07-05 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Bone tissue puncture needle for particle implantation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111026 Effective date of abandoning: 20120523 |