CN104523304A - Medical sclerotin sampling trepan - Google Patents
Medical sclerotin sampling trepan Download PDFInfo
- Publication number
- CN104523304A CN104523304A CN201510012537.4A CN201510012537A CN104523304A CN 104523304 A CN104523304 A CN 104523304A CN 201510012537 A CN201510012537 A CN 201510012537A CN 104523304 A CN104523304 A CN 104523304A
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- China
- Prior art keywords
- sclerotin
- prism shape
- polygon prism
- pipe
- drill bit
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Abstract
The invention relates to medical equipment, in particular to a medical sclerotin sampling trepan. The medical sclerotin sampling trepan comprises a drill rod with one end provided with a drill bit and a handle connected to the drill rod, the end of the drill bit is provided with a tooth-shaped protrusion, the other end of the drill rod is provided with a sclerotin obtaining tube, the sclerotin obtaining tube is of a tubular structure matched with the drill bit, the inner wall of the sclerotin obtaining tube is provided with a plurality of barbs in an annular mode, the bottoms of the barbs are connected to through holes in the tube wall of the sclerotin obtaining tube, and the tops of the barbs incline towards an inner cavity of the sclerotin obtaining tube, the axis of the drill rod is provided with a multi-prism-shaped cavity, and the lower end of the handle is fixedly connected with a multi-prism-shaped tube inserted in the multi-prism-shaped cavity. The medical sclerotin sampling trepan is simple in structure, convenient to use and capable of clamping a sclerotin sample in the sampling process, or cutting an annual groove at the root of the sclerotin sample, a sample cylinder can be extracted conveniently, and the sampling success rate is increased.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, specifically a kind of medical sclerotin sampling trepan.
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:
Medical sclerotin sampling trepan of the present invention comprises one end and is provided with the drilling rod of drill bit, the handle be connected on drilling rod, described drill bit is tubular structure, the end of drill bit is provided with detent projection, the other end of described drilling rod is provided with gets bone pipe, described bone pipe of getting is the tubular structure mating drill bit, the inwall getting bone pipe distributes multiple agnail ringwise, and the bottom of described agnail is connected in the through hole being opened in and getting on bone tube wall, and the top of agnail is to getting cavity dumping in bone pipe; The axial location of drilling rod is provided with polygon prism shape chamber, and the lower end of described handle is fixedly connected with the polygon prism shape pipe be inserted in polygon prism shape chamber.
Be provided with push-pull bar in the inner chamber of described polygon prism shape pipe, the upper end of described push-pull bar is connected on draw ring through handle, and the lower end of polygon prism shape pipe is hinged with flip body, and the lower end of described push-pull bar is hinged on flip body by fork.
Described polygon prism shape pipe is cross section outline is foursquare stylostome, described flip body is symmetrically arranged two pieces of rectangular block shape structures, the outside of flip body is hinged on the outer wall of polygon prism shape pipe, and the lower end of the hinged fork in inner side of flip body, the upper end thereof of described fork is on push-pull bar.
Owing to have employed said structure, this medical sclerotin sampling trepan structure is simple, easy to use, can clamp sclerotin sample, or the root of sclerotin sample is cut annular groove, be convenient to extract sample cylinder, 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 structural representation that polygon prism shape pipe lower end flip body closes up state.
Fig. 4 is the structural representation of polygon prism shape pipe lower end flip body open mode.
Detailed description of the invention
As shown in Figure 1 and Figure 2, medical sclerotin sampling trepan of the present invention comprises one end and is provided with the drilling rod 2 of drill bit 1, the handle 3 be connected on drilling rod 2, described drill bit 1 is tubular structure, the end of drill bit 1 is provided with detent projection, 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, is deepened by this cannelure can form column sample to 1-1.5 centimetre, meets the requirement of sampling.
The other end of described drilling rod 2 is provided with gets bone pipe 4, described bone pipe 4 of getting is the tubular structures mating drill bit 1, the inwall getting bone pipe 4 distributes multiple agnail 5 ringwise, and the bottom of described agnail 5 is connected in the through hole being opened in and getting on bone pipe 4 tube wall, and the top of agnail 5 is to getting cavity dumping in bone pipe 4; The axial location of drilling rod 2 is provided with polygon prism shape chamber, and the lower end of described handle 3 is fixedly connected with the polygon prism shape pipe 6 be inserted in polygon prism shape chamber.Polygon prism shape pipe 6 matches with the shape and size in polygon prism shape chamber, and polygon prism shape pipe 6 can insert or extract, and drilling rod 2 can be driven to rotate together time polygon prism shape pipe 6 rotates.
Polygon prism shape pipe 6 only can rely on friction fit with the connection in polygon prism shape chamber.Also as shown in Figure 3, Figure 4, can be provided with push-pull bar 7 in the inner chamber of described polygon prism shape pipe 6, the upper end of described push-pull bar 7 is connected on draw ring 8 through handle 3, push-pull bar 7 can be pulled to move axially by draw ring 8.The lower end of polygon prism shape pipe 6 is hinged with flip body 9, and the lower end of described push-pull bar 7 is hinged on flip body 9 by fork 10.
Described polygon prism shape pipe 6 is cross section outlines is foursquare stylostome, described flip body 9 is symmetrically arranged two pieces of rectangular block shape structures, the outside of flip body 9 is hinged on the outer wall of polygon prism shape pipe 6, the lower end of the hinged fork 10 in inner side of flip body 9, the upper end thereof of described fork 10 is on push-pull bar 7.As shown in Figure 3, time push-pull bar 7 is positioned at a high position, by the inner side pull-up of fork 10 by flip body 9, two flip bodies 9 close up the formation cylinder the same with polygon prism shape pipe 6 outline, do not affect polygon prism shape pipe 6 sliding axially in polygon prism shape chamber; As shown in Figure 4, time push-pull bar 7 is positioned at low level, pushed away downwards by the inner side of fork 10 by flip body 9, two flip bodies 9 turn on the end face that turn 90 degrees and be stuck in polygon prism shape chamber respectively to both sides, by polygon prism shape pipe 6 locking position in polygon prism shape chamber, thus drilling rod 2 is locked on polygon prism shape pipe 6.
During use, make drill bit 1 downwards, get on polygon prism shape pipe 6 that drilling rod 2 is upwards arranged on by bone pipe 4, on bone, cut endless groove by handle 3 rotary drilling-head 1, and continue ring cutting, until the degree of depth of endless groove reaches the sampling requirement of 1-1.5 centimetre; Then drilling rod 2 is taken off, make after upset to get bone pipe 4 downwards, on the polygon prism shape pipe 6 that upwards drilling rod 2 is arranged on of drill bit 1, and draw ring 8 is pressed down, make push-pull bar 7 be positioned at low level, drilling rod 2 is locked on polygon prism shape pipe 6, the bottom of getting bone pipe 4 and put in endless groove, because agnail 5 has certain elasticity, the top of agnail 5 is resisted against the root of sample cylinder, and increase the frictional force of getting bone pipe 4 and sample cylinder, now extracting drilling rod 2 can pull off sample and take out.Also can get bone pipe 4 by rotation utilizes agnail 5 to cut out root annular groove at the root of sample, and then extracts drilling rod 2.
Claims (2)
1. medical sclerotin sampling trepan, comprise the drilling rod (2) that one end is provided with drill bit (1), be connected to the handle (3) on drilling rod (2), described drill bit (1) is tubular structure, the end of drill bit (1) is provided with detent projection, it is characterized in that: the other end of described drilling rod (2) is provided with gets bone pipe (4), described bone pipe (4) of getting is the tubular structure mating drill bit (1), the inwall getting bone pipe (4) distributes multiple agnail (5) ringwise, the bottom of described agnail (5) is connected in the through hole being opened in and getting on bone pipe (4) tube wall, the top of agnail (5) is to the interior cavity dumping getting bone pipe (4), the axial location of drilling rod (2) is provided with polygon prism shape chamber, and the lower end of described handle (3) is fixedly connected with the polygon prism shape pipe (6) be inserted in polygon prism shape chamber, push-pull bar (7) is provided with in the inner chamber of described polygon prism shape pipe (6), the upper end of described push-pull bar (7) is connected on draw ring (8) through handle (3), the lower end of polygon prism shape pipe (6) is hinged with flip body (9), and the lower end of described push-pull bar (7) is hinged on flip body (9) by fork (10).
2. medical sclerotin sampling trepan according to claim 1, it is characterized in that: described polygon prism shape pipe (6) is cross section outline is foursquare stylostome, described flip body (9) is symmetrically arranged two pieces of rectangular block shape structures, the outside of flip body (9) is hinged on the outer wall of polygon prism shape pipe (6), the lower end of the hinged fork in the inner side (10) of flip body (9), the upper end thereof of described fork (10) is on push-pull bar (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510012537.4A CN104523304B (en) | 2015-01-12 | 2015-01-12 | Medical sclerotin sampling trepan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510012537.4A CN104523304B (en) | 2015-01-12 | 2015-01-12 | Medical sclerotin sampling trepan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104523304A true CN104523304A (en) | 2015-04-22 |
| CN104523304B CN104523304B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510012537.4A Expired - Fee Related CN104523304B (en) | 2015-01-12 | 2015-01-12 | Medical sclerotin sampling trepan |
Country Status (1)
| Country | Link |
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| CN (1) | CN104523304B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997039685A1 (en) * | 1996-04-24 | 1997-10-30 | Spinetech, Inc. | Graduated bone graft harvester |
| US6007496A (en) * | 1996-12-30 | 1999-12-28 | Brannon; James K. | Syringe assembly for harvesting bone |
| US6306142B1 (en) * | 1998-07-17 | 2001-10-23 | Johnson & Johnson | Method and apparatus for harvesting and implanting bone plugs |
| US20060149271A1 (en) * | 1989-08-28 | 2006-07-06 | Michelson Gary K | Method for cutting bone or cartilage with a rongeur |
| 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 |
| CN204379320U (en) * | 2015-01-12 | 2015-06-10 | 杨雪飞 | Medical sclerotin sampling trepan |
-
2015
- 2015-01-12 CN CN201510012537.4A patent/CN104523304B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060149271A1 (en) * | 1989-08-28 | 2006-07-06 | Michelson Gary K | Method for cutting bone or cartilage with a rongeur |
| WO1997039685A1 (en) * | 1996-04-24 | 1997-10-30 | Spinetech, Inc. | Graduated bone graft harvester |
| US6007496A (en) * | 1996-12-30 | 1999-12-28 | Brannon; James K. | Syringe assembly for harvesting bone |
| US6306142B1 (en) * | 1998-07-17 | 2001-10-23 | Johnson & Johnson | Method and apparatus for harvesting and implanting bone plugs |
| 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 |
| CN204379320U (en) * | 2015-01-12 | 2015-06-10 | 杨雪飞 | Medical sclerotin sampling trepan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104523304B (en) | 2016-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160824 Termination date: 20170112 |