CN217014140U - Intervertebral variable-diameter circular reamer - Google Patents
Intervertebral variable-diameter circular reamer Download PDFInfo
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- CN217014140U CN217014140U CN202122832114.0U CN202122832114U CN217014140U CN 217014140 U CN217014140 U CN 217014140U CN 202122832114 U CN202122832114 U CN 202122832114U CN 217014140 U CN217014140 U CN 217014140U
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- reamer
- head
- reamer head
- thread section
- intervertebral
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Abstract
The utility model relates to the technical field of medical instruments, in particular to an intervertebral variable-diameter circular reamer. The variable-diameter circular reamer comprises a reamer rod, a handle and a first reamer head, wherein the handle is arranged at one end of the reamer rod, the first reamer head is arranged at the other end of the reamer rod, a first thread section and a second thread section are arranged on the outer wall of the reamer rod, a second reamer mechanism is sleeved on the outer wall of the reamer rod, the second reamer mechanism comprises a knob, a connecting rod and a second reamer head which are sequentially connected, the second reamer head is far away from the first reamer head when the knob is screwed in the first thread section, and the second reamer head is sleeved outside the first reamer head when the knob is screwed in the second thread section. The utility model has reasonable structural design, high efficiency of reaming nucleus pulposus and cartilage, capability of reducing diameter in the using process and convenient operation.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an intervertebral variable-diameter circular reamer.
Background
An intervertebral space reamer is a medical surgical instrument used for reaming the nucleus pulposus and the middle end plate of cartilage of an intervertebral disc in an intervertebral hole of a patient. The intervertebral space reamer commonly used is mostly flat square reamer, handles the intervertebral space with the less reamer of size earlier when the operation, then trades the reamer of the big one of diameter and continues to handle the intervertebral space, and the treatment effeciency is slower, operates inconveniently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an intervertebral variable-diameter circular reamer which overcomes the defects of the prior art, has reasonable structural design, high efficiency of reaming nucleus pulposus and cartilage, capability of reducing diameters in the using process and convenient operation.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
an intervertebral variable-diameter circular reamer comprises a reamer rod, a handle and a first reamer head, wherein the handle is arranged at one end of the reamer rod, the first reamer head is arranged at the other end of the reamer rod, a first threaded section and a second threaded section are arranged on the outer wall of the reamer rod, a second reamer mechanism is sleeved on the outer wall of the reamer rod and comprises a knob, a connecting rod and a second reamer head which are sequentially connected, the second reamer head is far away from the first reamer head when the knob is screwed to the first threaded section, and the second reamer head is sleeved outside the first reamer head when the knob is screwed to the second threaded section;
during the use, the knob is twisted earlier on first screw thread section, and handheld handle carries out the hinge of nucleus pulposus, cartilage through first reamer head and removes the processing, and on the second screw thread section was twisted to the knob from first screw thread section after finishing handling to first reamer head held the inside of putting into second reamer head completely, continues to carry out the hinge of nucleus pulposus, cartilage through second reamer head and removes the processing, convenient operation and efficient.
Further, the main part of first reamer head and the main part of second reamer head all are the cylinder structure, and the lateral wall of cylinder structure is equipped with the trompil along circumference interval, and one side of trompil all is provided with the blade structure, compares in flat square cutter head, and first reamer head and second reamer head's hank cuts efficiently more.
Furthermore, the first reamer head and the second reamer head are provided with 4 blade structures.
Furthermore, the knob revolves the ring and sets up in revolving the round elastic claw who revolves ring one side including revolving, and the outer terminal surface of revolving the ring is revolved to keeping away from of elastic claw is provided with protruding edge, the one end of connecting rod inner wall is provided with round and protruding edge matched with draw-in groove, and during the connecting rod was gone into to the elastic claw card, through the protruding card of edge of elasticity in the draw-in groove.
Furthermore, a first horizontal tangent plane is arranged on the reamer rod between the second thread section and the first reamer head, a second horizontal tangent plane matched with the first horizontal tangent plane is arranged in an inner cavity of the connecting rod, the circumferential position between the connecting rod and the reamer rod is locked under the action of the first horizontal tangent plane and the second horizontal tangent plane when the second reamer head is sleeved on the first reamer head, the stability of the second reamer head in the reaming process is ensured, the screwing ring is screwed at the moment, the convex edge rotates in the clamping groove, and the screwing ring is connected with the second thread section to lock the front position and the rear position of the second reamer mechanism on the reamer rod.
The utility model has the beneficial effects that: compared with the prior art, the intervertebral variable-diameter circular reamer has the following advantages: (1) compared with a flat square cutter head, the reaming efficiency of the first reamer head and the second reamer head is higher; (2) the same intervertebral variable-diameter circular reamer can quickly complete reaming and removing treatment of nucleus pulposus and cartilage through reducing, and is high in operation efficiency and convenient to use.
Drawings
FIG. 1 is a schematic structural view of a first usage state of the present invention;
FIG. 2 is a schematic structural view of a second usage state of the present invention;
FIG. 3 is a schematic view of a second reamer mechanism of the present invention;
the cutting tool comprises a reamer rod 1, a handle 2, a first reamer head 3, a first thread section 4, a second thread section 5, a knob 6, a 601 screwing ring, an elastic claw 602, a connecting rod 7, a second reamer head 8, an opening 9, a blade structure 10, a first horizontal section 11 and a second horizontal section 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the embodiment shown in fig. 1-3, an intervertebral variable diameter circular reamer comprises a reamer rod 1, a handle 2 arranged at one end of the reamer rod 1 and a first reamer head 3 arranged at the other end of the reamer rod 1, wherein a first thread section 4 and a second thread section 5 are arranged on the outer wall of the reamer rod 1, a second reamer mechanism is sleeved on the outer wall of the reamer rod 1, the second reamer mechanism comprises a knob 6, a connecting rod 7 and a second reamer head 8 which are sequentially connected, the second reamer head 8 is far away from the first reamer head 3 when the knob 6 is screwed in the first thread section 4, and the second reamer head 8 is sleeved outside the first reamer head 3 when the knob 6 is screwed in the second thread section 5;
during the use, knob 6 is twisted soon earlier on first screw thread section 4, and handheld handle 2 carries out the hinge of nucleus pulposus, cartilage through first reamer head and removes the processing, and with knob 6 unscrewing from first screw thread section 4 after handling to twist soon on second screw thread section 5, the inside of second reamer head is placed into completely to first reamer head this moment, continues to carry out the hinge of nucleus pulposus, cartilage through second reamer head and removes the processing, convenient operation and efficient.
In this embodiment, the main part of first reamer head 3 and the main part of second reamer head 8 all are the cylinder structure, and trompil 9 has been seted up along circumference interval to the lateral wall of cylinder structure, and one side of trompil 9 all is provided with blade structure 10, compares in flat square cutter head, and the hank of first reamer head and second reamer head is cut efficiently more.
In this embodiment, the first and second reamer heads 3, 8 are each provided with 4 blade formations 10.
In this embodiment, the knob 6 includes a screw ring 601 and a circle of elastic claws 602 disposed on one side of the screw ring 601, a convex edge 603 is disposed on an outer end surface of the elastic claws 602 away from the screw ring 601, a circle of clamping grooves matched with the convex edge 603 is disposed at one end of an inner wall of the connecting rod 7, and the elastic claws 602 are clamped in the connecting rod 7 and the convex edge 603 is clamped in the clamping grooves by an elastic action.
In this embodiment, a first horizontal tangent plane 11 is arranged on the reamer rod 1 between the second threaded section 5 and the first reamer head 3, a second horizontal tangent plane 12 matched with the first horizontal tangent plane 11 is arranged in an inner cavity of the connecting rod 7, when the second reamer head is sleeved on the first reamer head, the circumferential position between the connecting rod 7 and the reamer rod is locked under the action of the first horizontal tangent plane 11 and the second horizontal tangent plane 12, so that the stability of the reaming process of the second reamer head is ensured, the screwing ring 601 is screwed at the moment, the convex edge 603 rotates in the clamping groove, and the knob 6 is connected with the second threaded section 5 to lock the front and rear positions of the second reamer mechanism on the reamer rod.
The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides an intervertebral circular reamer of reducing which characterized in that: including the reamer pole, set up in the handle of reamer pole one end and set up in the first reamer head of the reamer pole other end, the outer wall of reamer pole is provided with first screw thread section and second screw thread section, and the outer wall cover of reamer pole is equipped with second reamer mechanism, second reamer mechanism is including the knob, connecting rod and the second reamer head that connect gradually, and first reamer head is kept away from to second reamer head when the knob is twisted soon in first screw thread section, twists the outside of twisting second reamer head cover in first reamer head when twisting in second screw thread section soon.
2. The intervertebral variable diameter circular reamer of claim 1 wherein: the main body of the first reamer head and the main body of the second reamer head are both cylindrical structures, open holes are formed in the side walls of the cylindrical structures at intervals along the circumferential direction, and blade structures are arranged on one sides of the open holes.
3. The intervertebral variable diameter circular reamer of claim 2 wherein: and 4 blade structures are arranged on the first reamer head and the second reamer head.
4. The intervertebral variable diameter circular reamer of claim 1 wherein: the knob comprises a screwing ring and a circle of elastic claws arranged on one side of the screwing ring, convex edges are arranged on the outer end faces, far away from the screwing ring, of the elastic claws, and a circle of clamping grooves matched with the convex edges are formed in one end of the inner wall of the connecting rod.
5. The intervertebral variable diameter circular reamer of claim 4 wherein: a first horizontal tangent plane is arranged on the reamer rod between the second thread section and the first reamer head, and a second horizontal tangent plane matched with the first horizontal tangent plane is arranged in the inner cavity of the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122832114.0U CN217014140U (en) | 2021-11-18 | 2021-11-18 | Intervertebral variable-diameter circular reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122832114.0U CN217014140U (en) | 2021-11-18 | 2021-11-18 | Intervertebral variable-diameter circular reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217014140U true CN217014140U (en) | 2022-07-22 |
Family
ID=82438691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122832114.0U Active CN217014140U (en) | 2021-11-18 | 2021-11-18 | Intervertebral variable-diameter circular reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217014140U (en) |
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2021
- 2021-11-18 CN CN202122832114.0U patent/CN217014140U/en active Active
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