CN201775673U - Nucleus pulposus spreader - Google Patents
Nucleus pulposus spreader Download PDFInfo
- Publication number
- CN201775673U CN201775673U CN2010205051435U CN201020505143U CN201775673U CN 201775673 U CN201775673 U CN 201775673U CN 2010205051435 U CN2010205051435 U CN 2010205051435U CN 201020505143 U CN201020505143 U CN 201020505143U CN 201775673 U CN201775673 U CN 201775673U
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Abstract
The utility model relates to a nucleus pulposus spreader which belongs to the field of medical devices and is suitable for treating traumatic fracture, compression fracture, and the like. The nucleus pulposus spreader comprises a pin (1), an end cap (2), a pull rod (3), a nucleus pulposus prop-open body (4), a reclaiming sleeve (5), a reclaiming sleeve handle (6), a spring ring (7), a bracket (8), a slotting pan head nail (9), a locking block (10), an anti-rotation lid (11), a gasket (12), a handle nut (13), an anti-rotation spacer (14), a hexagonal handle (15), a plug (16), a slotting countersunk head nail (17), a nut (18), a handle (19) and a supporting rod (20), and is characterized in that a threaded hole is formed in the center of the end cap (2), the lower end of the end cap (2) is spherical and a groove is formed at the upper end of the end cap (2); threads and a step are formed at the left end of the pull rod (3), and threads and a D-shaped surface are formed at the right end; and a through-hole is formed in the center of the nucleus pulposus prop-open body (4), and a blade is arranged at the left end of the nucleus pulposus prop-open body (4). The working procedures of the nucleus pulposus spreader are firstly, determining open depth and direction, then drilling, propping open centrum, injecting bone cement, and realizing centrum propping open at last.
Description
Technical field
This utility model relates to a kind of vertebral pulp dilator, belongs to medical instruments field, is applicable to diseases such as treatment wound, compression fracture.
Background technology
The compression fracture disease causes serious inconvenience for people's life and social work.Wound makes vertebral body impaired, loses the normal physiological height, and compression fracture is many, and spongy bone is out of shape because of compression, often occurs in down thoracic vertebra, upper lumbar spine by due to the indirect violence of vertical compression, and vertebral body is wedge shape.With advancing age, inorganic salt and organic matter in the human body sclerotin change, and produce osteoporosis.Under the permanent effect of self gravitation, compression fracture of vertabral body can take place in loose vertebra.
The development of many companies is abroad arranged at present and release vertebroplasty apparatus and corresponding Minimally Invasive Surgery channel system in market, these apparatuses have the advantage of advanced design, but these vertebroplasties and channel system cost an arm and a leg, the design of apparatus itself is numerous and diverse, and its apparatus all is based upon on crowd's anatomy of spine mathematic(al) parameter basis, west, still has a lot of problems to solve so its vertebroplasty device system applies to compatriots.
Summary of the invention
For filling the domestic gaps, this utility model under the prerequisite that keeps the prior art advantage, overcomes its drawback just, and a kind of suitable state human body type is provided, and has to construct advantage reasonable, safe and reliable, simple to operate, advanced design.
The technical solution of the utility model is as follows:
The vertebral pulp dilator, by pin (1), end cap (2), pull bar (3), vertebral pulp struts body (4), recovery set (5), recovery set handle (6), turn (7), support (8), fluting coiled hair nail (9), latch segment (10), anti-hub cap (11), pad (12), handle nut (13), anti-rotation pad (14), six Square handles (15), plug (16), fluting countersunk head nail (17), nut (18), handle (19), pole (20) is formed, it is characterized in that: end cap (2) center tapped through hole, outer surface has pin via hole, the lower end outer surface is spherical, and the upper surface is the sloping platform shape and annular groove is arranged; Pull bar (3) left end has external screw thread, groove, polished rod and step, and the screw thread place is porose, and mid portion is a polished rod, and right-hand member has external screw thread and D shape face; Vertebral pulp struts body (4) central through hole, and right-hand member has screw thread, groove, and left end stepped hole outer surface is a gear piece, and left end is connected with gear piece and touches outer surface annular groove is arranged; Recovery set (5) central through hole, the right-hand member outer surface has step; There is annular knurl at recovery set handle (6) outer surface two ends, and mid portion is that annular groove shape and its surface have annular groove, central through hole, and there is step in the left end hole, and there is annular groove in the right-hand member hole; Support (8) lower-left end is the groove shape, and all there is through hole lower end, upper end, and there is pin hole at vertical place with the lower end through-hole section, center-top, overlaps with the upper end through hole and there is through hole at vertical place, and support (8) is seen as oval shape from left surface; The branch of part about latch segment (10) has, outer surface all has round recessed, left part center tapped through hole, right part central through hole; Anti-hub cap (11) central through hole, the upper end is D shape hole, and there is screwed hole the lower end, and there is annular groove upper and lower side junction, hole, and outer surface is step-like, and there is annular knurl the lower end; Handle nut (13) central through hole and right-hand member are screwed hole, and the right-hand member outer surface has sloping platform and its end face that scale marker is arranged, and the left end outer surface has screwed hole; Anti-rotation pad (14) is that draw-in groove shape and center are D shape hole; Six Square handles (15) center step through-hole, outer surface has the flat and screwed hole of six sides; Pole (20) left end is curved shape, and head is porose, and there is step the centre, and the right-hand member outer surface is porose.
End cap (2) center tapped through hole, outer surface has through hole, the lower end outer surface is spherical, play the guiding role, the upper surface is the sloping platform shape and annular groove is arranged that vertebral pulp struts the annular groove section that body (4) gear piece portion inserts end cap (2), rotate six Square handles (15) pulling pull bar (3), promote vertebral pulp and strut body (4), its gear piece portion is expanded, strut vertebral body to the normal physiological state.
Pull bar (3) left end has external screw thread, groove, polished rod and step, and the screw thread place is porose, the screw thread place is connected with end cap (2) screwed hole, stage portion can support vertebral pulp and strut body (4) gear piece place and it is outwards expanded and strut vertebral body, mid portion is a polished rod, right-hand member has external screw thread and D shape face, the screw thread place is connected with the screwed hole and the nut (18) of handle nut (13), handle nut (13) is connected with six Square handles (15), vertebral pulp struts body (4), recovery set (5), recovery set handle (6), support (8), anti-hub cap (11), pad (12), handle nut (13), pull bar (3) is cascaded, rotating six Square handles (15) can make vertebral pulp strut the right side move left and right of body (4), make vertebral pulp strut body (4) gear piece and outwards expand, play the effect that struts vertebral body.
Vertebral pulp struts body (4) central through hole, right-hand member has screw thread, groove, the right-hand member screw thread is connected with anti-hub cap (11) screw thread place, left end stepped hole outer surface is a gear piece, during operation, rotate six Square handles (15) and can make vertebral pulp strut body (4) left side to move right, and its gear piece is outwards expanded gradually, strut vertebral body to the normal physiological status of human body, play the effect that struts vertebral body.
Recovery set (5) central through hole, the right-hand member outer surface has step, vertebral pulp struts body (4) and inserts in the through hole of recovery set (5), when there is broken bone at the gear piece place that vertebral pulp struts body (4), promotes recovery set (5) and broken bone can be strutted body (4) from vertebral pulp and will be clipped in bone bits the gear piece gap and push vertebral pulp to and strut body (4) left end to guarantee that vertebral pulp struts body (4) and reclaims.
Anti-hub cap (11) central through hole, the upper end is D shape hole, and the place cooperates with the externally threaded D shape of pull bar (3) right-hand member face, play the guiding role, and there is screwed hole the lower end, and there is annular groove upper and lower side junction, hole, struts body (4) right-hand member screw thread place with vertebral pulp and is connected.
Anti-rotation pad (14) is that draw-in groove shape and center are D shape hole, the D shape hole of two nuts (18), anti-rotation pad (14) is passed at the externally threaded D shape of pull bar (2) right-hand member face place, the draw-in groove of anti-rotation pad (14) blocks first nut (18) can not freely rotate first nut (18), second nut (18) tightened at last, anti-rotation pad (14) is connected with nut (18) can prevent pull bar (2) landing again.
By diagnosis wound such as CT or X-ray and compression fracture disease before the art, implement vertebral body and strut operation: the degree of depth and the orientation of at first definite vertebral body sections that need strut, boring, adopt the spinal column nail-stick system that the damaged vertebral body adjacent segment is fixed, impaired vertebra is strutted to the normal physiological status of human body position, the vertebral pulp dilator is imported the vertebral body position that need strut along drilled tunnel, rotate six Square handles (15) and adjust the vertebral pulp dilator, vertebral body is strutted to normal physiological status of human body and height, withdraw from the vertebral pulp dilator, inject bone cement, realization struts vertebral body, makes vertebral body return to normal physiological status.
Reasonable, safe and reliable, simple to operate, the advanced design of vertebral pulp dilator structure is suitable for the orthopaedics clinical application.The vertebral pulp dilator provides near the conduction of the load of physiological status by strutting vertebral body, alleviating pain, and can alleviate even avoid the regression of adjacent segment.
Description of drawings
Fig. 1 is a vertebral pulp dilator structure chart of the present utility model.
Fig. 2 is the structure chart of pin of the present utility model (1).
Fig. 3 is the structure chart of end cap of the present utility model (2).
Fig. 4 is the structure chart of pull bar of the present utility model (3).
Fig. 5 struts the structure chart of body (4) for vertebral pulp of the present utility model.
Fig. 6 is the structure chart of recovery set of the present utility model (5).
Fig. 7 is the structure chart of recovery set handle of the present utility model (6).
Fig. 8 is the structure chart of turn of the present utility model (7).
Fig. 9 is the structure chart of support of the present utility model (8).
Figure 10 is the structure chart of fluting coiled hair nail of the present utility model (9).
Figure 11 is the structure chart of latch segment of the present utility model (10).
Figure 12 is the structure chart of anti-hub cap of the present utility model (11).
Figure 13 is the structure chart of pad of the present utility model (12).
Figure 14 is the structure chart of handle nut of the present utility model (13).
Figure 15 is the structure chart of anti-rotation pad of the present utility model (14).
Figure 16 is the structure chart of six Square handles of the present utility model (15).
Figure 17 is the structure chart of plug of the present utility model (16).
Figure 18 is the structure chart of fluting countersunk head nail of the present utility model (17).
Figure 19 is the structure chart of nut of the present utility model (18).
Figure 20 is the structure chart of handle of the present utility model (19).
Figure 21 is the structure chart of pole of the present utility model (20).
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
The vertebral pulp dilator, by pin (1), end cap (2), pull bar (3), vertebral pulp struts body (4), recovery set (5), recovery set handle (6), turn (7), support (8), fluting coiled hair nail (9), latch segment (10), anti-hub cap (11), pad (12), handle nut (13), anti-rotation pad (14), six Square handles (15), plug (16), fluting countersunk head nail (17), nut (18), handle (19), pole (20) is formed, it is characterized in that: end cap (2) center tapped through hole, outer surface has through hole, the lower end outer surface is spherical, and the upper surface is the sloping platform shape and annular groove is arranged; Pull bar (3) left end has external screw thread, groove, polished rod and step, and the screw thread place is porose, and mid portion is a polished rod, and right-hand member has external screw thread and D shape face; Vertebral pulp struts body (4) central through hole, and right-hand member has screw thread, groove, and left end stepped hole outer surface is a gear piece, and left end is connected with gear piece and touches outer surface annular groove is arranged; Recovery set (5) central through hole, the right-hand member outer surface has step; There is annular knurl at recovery set handle (6) outer surface two ends, and mid portion is that annular groove shape and its surface have annular groove, central through hole, and there is step in the left end hole, and there is annular groove in the right-hand member hole; Support (8) lower-left end is the groove shape, and all there is through hole lower end, upper end, and there is aperture at vertical place with the lower end through-hole section, center-top, overlaps with the upper end through hole and there is through hole at vertical place, and support (8) is seen as oval shape from the side; The branch of part about latch segment (10) has, outer surface all has round recessed, left part center tapped through hole, right part central through hole; Anti-hub cap (11) central through hole, the upper end is D shape hole, and there is screwed hole the lower end, and there is annular groove upper and lower side junction, hole, and outer surface is step-like, and there is annular knurl the lower end; Handle nut (13) central through hole and right-hand member are screwed hole, and the right-hand member outer surface has sloping platform and its end face that scale marker is arranged, and the left end outer surface has screwed hole; Anti-rotation pad (14) is that draw-in groove shape and center are D shape hole; Six Square handles (15) center step through-hole, outer surface has the flat and screwed hole of six sides; Pole (20) left end is curved shape, and head is porose, and there is step the centre, and the right-hand member outer surface is porose.The degree of depth and the orientation of at first definite vertebral body sections that need strut, implement boring, adopt the spinal column nail-stick system that the damaged vertebral body adjacent segment is fixed, impaired vertebra is strutted to the normal physiological status of human body position, the vertebral pulp dilator is imported the vertebral body position that need strut along drilled tunnel, rotate six Square handles (15) and adjust the vertebral pulp dilator, vertebral body is strutted to normal physiological status of human body and height, withdraw from the vertebral pulp dilator, inject bone cement, realization struts vertebral body, makes vertebral body return to normal physiological status.
Claims (1)
1. vertebral pulp dilator, by pin (1), end cap (2), pull bar (3), vertebral pulp struts body (4), recovery set (5), recovery set handle (6), turn (7), support (8), fluting coiled hair nail (9), latch segment (10), anti-hub cap (11), pad (12), handle nut (13), anti-rotation pad (14), six Square handles (15), plug (16), fluting countersunk head nail (17), nut (18), handle (19), pole (20) is formed, it is characterized in that: end cap (2) center tapped through hole, outer surface has pin via hole, the lower end outer surface is spherical, and the upper surface is the sloping platform shape and annular groove is arranged; Pull bar (3) left end has external screw thread, groove, polished rod and step, and the screw thread place is porose, and mid portion is a polished rod, and right-hand member has external screw thread and D shape face; Vertebral pulp struts body (4) central through hole, and right-hand member has screw thread, groove, and left end stepped hole outer surface is a gear piece, and left end is connected with gear piece and touches outer surface annular groove is arranged; Recovery set (5) central through hole, the right-hand member outer surface has step; There is annular knurl at recovery set handle (6) outer surface two ends, and mid portion is that annular groove shape and its surface have annular groove, central through hole, and there is step in the left end hole, and there is annular groove in the right-hand member hole; Support (8) lower-left end is the groove shape, and all there is through hole lower end, upper end, and there is pin hole at vertical place with the lower end through-hole section, center-top, overlaps with the upper end through hole and there is through hole at vertical place, and support (8) is seen as oval shape from left surface; The branch of part about latch segment (10) has, outer surface all has round recessed, left part center tapped through hole, right part central through hole; Anti-hub cap (11) central through hole, the upper end is D shape hole, and there is screwed hole the lower end, and there is annular groove upper and lower side junction, hole, and outer surface is step-like, and there is annular knurl the lower end; Handle nut (13) central through hole and right-hand member are screwed hole, and the right-hand member outer surface has sloping platform and its end face that scale marker is arranged, and the left end outer surface has screwed hole; Anti-rotation pad (14) is that draw-in groove shape and center are D shape hole; Six Square handles (15) center step through-hole, outer surface has the flat and screwed hole of six sides; Pole (20) left end is curved shape, and head is porose, and there is step the centre, and the right-hand member outer surface is porose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205051435U CN201775673U (en) | 2010-08-26 | 2010-08-26 | Nucleus pulposus spreader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205051435U CN201775673U (en) | 2010-08-26 | 2010-08-26 | Nucleus pulposus spreader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201775673U true CN201775673U (en) | 2011-03-30 |
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ID=43788910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205051435U Expired - Lifetime CN201775673U (en) | 2010-08-26 | 2010-08-26 | Nucleus pulposus spreader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201775673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107847234A (en) * | 2015-07-21 | 2018-03-27 | 史密夫和内修有限公司 | Orthopaedic instrumentation |
-
2010
- 2010-08-26 CN CN2010205051435U patent/CN201775673U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107847234A (en) * | 2015-07-21 | 2018-03-27 | 史密夫和内修有限公司 | Orthopaedic instrumentation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160224 Address after: 100021 Beijing city Chaoyang District Huawei bohuanhuayuan No. nine building No. 7 803 Patentee after: Hu Huanyu Address before: 101204 West Beijing District of Pinggu City Mafang Industrial Zone No. 50 Patentee before: Beijing Fule Science & Technology Development Co., Ltd. Patentee before: Hu Huanyu |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 101204 West Beijing District of Pinggu City Mafang Industrial Zone No. 50 Patentee after: Hu Huanyu Address before: 100021 Beijing city Chaoyang District Huawei bohuanhuayuan No. nine building No. 7 803 Patentee before: Hu Huanyu |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |