CN104510505A - Centrum sampling trephine - Google Patents
Centrum sampling trephine Download PDFInfo
- Publication number
- CN104510505A CN104510505A CN201510012360.8A CN201510012360A CN104510505A CN 104510505 A CN104510505 A CN 104510505A CN 201510012360 A CN201510012360 A CN 201510012360A CN 104510505 A CN104510505 A CN 104510505A
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- trephine
- sleeve pipe
- sampling
- drilling rod
- hole
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Abstract
The invention relates to a medical instrument, particularly to a centrum sampling trephine used for extracting a sclerotin sample. The centrum sampling trephine comprises a trephine rod provided with a trephine head at the lower end, and a handle arranged at the upper end of the trephine rod, wherein the trephine rod adopts a cylindrical structure, and external threads are formed in the upper end of the trephine rod; an outer sleeve pipe is mounted on the trephine rod in a sleeving manner, the upper end of the outer sleeve is fixedly connected with a sleeve pipe grab handle, a through hole is formed in the sleeve pipe grab handle, the through hole and the inner chamber of the outer sleeve pipe are coaxially arranged, internal threads are formed in the through hole, and external threads on the drill rod are matched with the internal threads; the trephine head is composed of at least two arc-shaped blade bodies annularly arranged, and an inclined plane shrinking inward gradually is arranged on the outer surface of the arc-shaped blade body from the top to the bottom. The centrum sampling trephine has a simple structure and is convenient to use, during sampling, a sclerotin sample can be clamped tightly during sampling, and the sampling success rate is high.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, specifically a kind of vertebral body sampling trepan for extracting sclerotin sample.
Background technology
In order to the pathologic feature of clear and definite Vertebral body, to the case of difficult diagnosis and need the case accepting percutaneous vertebroplasty, need to use trepan to drill through the capable pathologic finding of vertebral body sclerotin.But in clinical practice, when pedicle punctures good, some patients still can not get vertebral body sclerotin, is unfavorable for clear and definite lesion nature.
The principle that common ring drills through out vertebral body sclerotin is: set up on the basis of works fine passage in pedicle puncture, trepan is through service aisle rotary drilling 1-1.5 centimetre forward, now, contain one section of cylindrical sclerotin in trepan, its far-end is connected with other sclerotin Intrapyramidal; In the normal situation of vertebral bone density, due to sclerotin in trepan and between trepan inwall frictional force comparatively large, now extract trepan fast, generally cylindrical sclerotin far-end can be pulled off, thus take out sclerotin.But find in clinical position, some patients due to osteoporosis and vertebral bodies destroyed comparatively serious, its sclerotin pathological destruction, loose, the frictional force thus and between trepan inwall reduces, the frictional force of extracting trepan is not enough to pull off sample sclerotin, so can not take out bone block to carry out pathological examination.
Summary of the invention
The object of this invention is to provide the vertebral body sampling trepan that a kind of structure is simple, easy to operate, sampling success rate is high.
The technical scheme that the present invention adopts for technical solution problem is:
Vertebral body sampling trepan of the present invention comprises lower end and is provided with the drilling rod of drill bit, is arranged on the handle of drilling rod upper end, and described drill bit is tubular structure, and the end of drill bit is provided with detent projection, and described drilling rod is cylindrical structure, and the upper end of drilling rod is provided with external screw thread; Trocar sheath is sleeved on drilling rod, the upper end of described trocar sheath is fixedly connected with sleeve pipe lever, and described sleeve pipe lever is provided with through hole, and the coaxial of described through hole and trocar sheath is arranged, female thread is provided with, the external screw thread on described female thread coupling drilling rod in through hole; Described drill bit is made up of the arc lamellar body of at least two panels circular array, and the outer surface of described arc lamellar body is provided with the inclined-plane inwardly shunk gradually from bottom to top.
The edge of described handle is uniformly distributed multiple chute longitudinally arranged, the lower surface of slip lid is provided with multiple claw-plate corresponding to described chute, described slip lid is positioned at the top of handle, and described claw-plate is installed in chute, and the edge of described sleeve pipe lever is provided with the draw-in groove of coupling claw-plate.
Owing to have employed said structure, this vertebral body sampling trepan structure is simple, easy to use, can clamp sclerotin sample, improve the success rate of sampling during sampling.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the upward view of drill bit.
Fig. 4 is the upward view of slip lid.
Fig. 5 is the top view of handle.
Detailed description of the invention
As shown in Figure 1 and Figure 2, vertebral body sampling trepan of the present invention comprises lower end and is provided with the drilling rod 2 of drill bit 1, is arranged on the handle 3 of drilling rod 2 upper end, described drill bit 1 is tubular structure, the end of drill bit 1 is provided with detent projection, described drilling rod 2 is cylindrical structure, the end of drill bit 1 is resisted against on vertebral body sclerotin, bone just can be cut a cannelure by detent projection time drilling rod 2 rotates on drill bit 1, this cannelure is deepened can form column sample to 1-1.5 centimetre, meet the requirement of sampling.
The upper end of drilling rod 2 is provided with external screw thread; Trocar sheath 4 is sleeved on drilling rod 2, the upper end of described trocar sheath 4 is fixedly connected with sleeve pipe lever 5, described sleeve pipe lever 5 is provided with through hole, the coaxial of described through hole and trocar sheath 4 is arranged, be provided with female thread in through hole, the external screw thread on described female thread coupling drilling rod 2, can by screw thread vertically movement on drilling rod 2 time sleeve pipe lever 5 rotates, the vertical movement of sleeve pipe lever 5 can drive again trocar sheath 4 synchronizing moving, its lower end Pressing drill 1 time trocar sheath 4 is descending.
Described drill bit 1 is made up of the arc lamellar body 6 of at least two panels circular array, the outer surface of described arc lamellar body 6 is provided with the inclined-plane 7 inwardly shunk gradually from bottom to top, when trocar sheath 4 from top to bottom extrudes arc lamellar body 6 time, arc lamellar body 6 is inwardly shunk, hold sclerotin sample tightly, easily sclerotin sample root can be pulled off, improve the success rate of sampling.
As shown in Figure 2, Figure 4 shows, the edge of described handle 3 is uniformly distributed multiple chute 10 longitudinally arranged, and the lower surface of slip lid 8 is provided with multiple claw-plate 9 corresponding to described chute 10, and the end of claw-plate 9 is provided with claw hook.Described slip lid 8 is positioned at the top of handle 3, and described claw-plate 9 is installed in chute 10, and the edge of described sleeve pipe lever 5 is provided with the draw-in groove 11 of coupling claw-plate 9, is provided with the groove of coupling claw hook in draw-in groove draw-in groove 11.Handle 3 and sleeve pipe lever 5 are aligned, make claw-plate 9 just to draw-in groove 11, slip lid 8 is pressed down and makes claw-plate 9 slip in draw-in groove 11, until claw hook sticks in groove, now namely by claw-plate 9, handle 3 and sleeve pipe lever 5 are linked together, make trocar sheath 4 and drilling rod 2 synchronous rotary, for cutting out annular incision on bone; After having cut, extract slip lid 8, claw-plate 9 is exited from draw-in groove 11, handle 3 can be separated with sleeve pipe lever 5, pin handle 3, revoling tube lever 5 makes sleeve pipe lever 5 spiral move down, the lower end extruding arc lamellar body 6 of trocar sheath 4 makes it inwardly shrink, hold sclerotin sample tightly, then hold handle 3 and sleeve pipe lever 5, upwards extract and sample root can be pulled off, take out sample.
Claims (2)
1. vertebral body sampling trepan, comprise lower end to be provided with the drilling rod (2) of drill bit (1), to be arranged on the handle (3) of drilling rod (2) upper end, described drill bit (1) is tubular structure, the end of drill bit (1) is provided with detent projection, it is characterized in that: described drilling rod (2) is cylindrical structure, the upper end of drilling rod (2) is provided with external screw thread; Trocar sheath (4) is sleeved on drilling rod (2), the upper end of described trocar sheath (4) is fixedly connected with sleeve pipe lever (5), described sleeve pipe lever (5) is provided with through hole, the coaxial of described through hole and trocar sheath (4) is arranged, female thread is provided with, the external screw thread on described female thread coupling drilling rod (2) in through hole; Described drill bit (1) is made up of the arc lamellar body (6) of at least two panels circular array, and the outer surface of described arc lamellar body (6) is provided with the inclined-plane (7) inwardly shunk gradually from bottom to top.
2. vertebral body sampling trepan according to claim 1, it is characterized in that: the edge of described handle (3) is uniformly distributed multiple chute (10) longitudinally arranged, the lower surface of slip lid (8) is provided with multiple claw-plate (9) corresponding to described chute (10), described slip lid (8) is positioned at the top of handle (3), described claw-plate (9) is installed in chute (10), and the edge of described sleeve pipe lever (5) is provided with the draw-in groove (11) of coupling claw-plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510012360.8A CN104510505B (en) | 2015-01-12 | 2015-01-12 | Vertebral body sampling trepan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510012360.8A CN104510505B (en) | 2015-01-12 | 2015-01-12 | Vertebral body sampling trepan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104510505A true CN104510505A (en) | 2015-04-15 |
| CN104510505B CN104510505B (en) | 2016-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510012360.8A Expired - Fee Related CN104510505B (en) | 2015-01-12 | 2015-01-12 | Vertebral body sampling trepan |
Country Status (1)
| Country | Link |
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| CN (1) | CN104510505B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109806022A (en) * | 2019-02-26 | 2019-05-28 | 北京交通大学 | A kind of preparation method and its pick-off unit of vertebral compression test specimen |
Citations (10)
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| US20020042624A1 (en) * | 1998-07-17 | 2002-04-11 | Johanson Mark A. | Method and apparatus for harvesting and implanting bone plugs |
| US20060167378A1 (en) * | 2002-05-31 | 2006-07-27 | Miller Larry J | Apparatus and method to access the bone marrow for oncology and stem cell applications |
| US20080119821A1 (en) * | 2006-11-17 | 2008-05-22 | Warsaw Orthopedic, Inc. | Multiport Cannula |
| US20080177200A1 (en) * | 2007-01-23 | 2008-07-24 | Jimro Co., Ltd. | Bone marrow harvesting drill |
| CN201949049U (en) * | 2011-01-18 | 2011-08-31 | 王健 | Orthopedic biopsy sampler |
| CN202015221U (en) * | 2011-02-10 | 2011-10-26 | 孙涛 | Dismal bone core extraction device capable of automatically cutting |
| CN202426557U (en) * | 2011-08-18 | 2012-09-12 | 南京大学医学院附属鼓楼医院 | Combined bone tumor minimally invasive incision biopsy device |
| US20130012946A1 (en) * | 2011-07-05 | 2013-01-10 | Johan Janssens | Combination of a bone drill and a sleeve |
| CN203943711U (en) * | 2014-03-14 | 2014-11-19 | 林健泽 | A kind of pedicle of vertebral arch is bored |
| CN204379321U (en) * | 2015-01-12 | 2015-06-10 | 周健 | Vertebral body sampling trepan |
-
2015
- 2015-01-12 CN CN201510012360.8A patent/CN104510505B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020042624A1 (en) * | 1998-07-17 | 2002-04-11 | Johanson Mark A. | Method and apparatus for harvesting and implanting bone plugs |
| US20060167378A1 (en) * | 2002-05-31 | 2006-07-27 | Miller Larry J | Apparatus and method to access the bone marrow for oncology and stem cell applications |
| US20080119821A1 (en) * | 2006-11-17 | 2008-05-22 | Warsaw Orthopedic, Inc. | Multiport Cannula |
| US20080177200A1 (en) * | 2007-01-23 | 2008-07-24 | Jimro Co., Ltd. | Bone marrow harvesting drill |
| CN201949049U (en) * | 2011-01-18 | 2011-08-31 | 王健 | Orthopedic biopsy sampler |
| CN202015221U (en) * | 2011-02-10 | 2011-10-26 | 孙涛 | Dismal bone core extraction device capable of automatically cutting |
| US20130012946A1 (en) * | 2011-07-05 | 2013-01-10 | Johan Janssens | Combination of a bone drill and a sleeve |
| CN202426557U (en) * | 2011-08-18 | 2012-09-12 | 南京大学医学院附属鼓楼医院 | Combined bone tumor minimally invasive incision biopsy device |
| CN203943711U (en) * | 2014-03-14 | 2014-11-19 | 林健泽 | A kind of pedicle of vertebral arch is bored |
| CN204379321U (en) * | 2015-01-12 | 2015-06-10 | 周健 | Vertebral body sampling trepan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109806022A (en) * | 2019-02-26 | 2019-05-28 | 北京交通大学 | A kind of preparation method and its pick-off unit of vertebral compression test specimen |
| CN109806022B (en) * | 2019-02-26 | 2020-07-28 | 北京交通大学 | Preparation method of vertebral compression test piece and piece taking device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104510505B (en) | 2016-11-16 |
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| CF01 | Termination of patent right due to non-payment of annual fee |