CN111202549A - Spinal implantation channel instrument - Google Patents
Spinal implantation channel instrument Download PDFInfo
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- CN111202549A CN111202549A CN202010046959.4A CN202010046959A CN111202549A CN 111202549 A CN111202549 A CN 111202549A CN 202010046959 A CN202010046959 A CN 202010046959A CN 111202549 A CN111202549 A CN 111202549A
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- wire fixing
- spinal implant
- rotating shaft
- access instrument
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
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Abstract
The invention discloses a spinal implantation channel instrument, which comprises a delivery pipe (20) and a driving module connected with the delivery pipe (20); the conveying pipe (20) is a hollow pipeline with the inner diameter larger than the outer diameter of the spine strengthening surgical instrument, and the tail end of the conveying pipe is provided with a controllable bending section (21); the driving module is connected with the controllable bending section (21) of the conveying pipe (20) through a driving rope (212), and the controllable bending section (21) is pulled through the driving rope (212) to realize bending. The spinal column implantation channel instrument extends into the position of the spinal focus of a patient, can reach the rotation direction of the control knob at the position in the spinal column according to the requirement of the actual surgical instrument, and provides a controllable bending channel for the surgical instrument, so that the surgical instrument can reach the position in the spinal column which a doctor wants.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a spinal implantation channel instrument.
Background
As the population ages, compression fractures due to osteoporosis are increasing. Statistically, there are about 2 hundred million patients with osteoporosis all over the world, and the spine is the most osteoporosis-prone segment, and a turn or a sneeze may cause compression fracture of the thoracolumbar spine of an osteoporosis patient. Percutaneous Vertebroplasty (PVP) or Percutaneous Kyphoplasty (PKP) is generally adopted for treating the osteoporotic vertebral compression fracture, and the PVP and the PKP can realize quick pain relief, vertebral height recovery, fracture vertebral strength and rigidity strengthening and kyphotic deformity correction when used for treating the osteoporotic vertebral compression fracture.
The existing Percutaneous Vertebroplasty (PVP) or Percutaneous Kyphoplasty (PKP) needs to puncture and inject bone cement (polymethyl acrylate, PMMA) at the pedicle of a vertebral arch of a patient to achieve the purpose of strengthening the vertebral body. One mode is to adopt bilateral puncture to inject bone cement, and the mode uses two sets of puncture devices to perform balloon dilatation from two sides, so that the cavity position and the focus position are ensured, and the uniform distribution of the bone cement in the cavity is facilitated. Another way is to inject bone cement by single-side puncture, which has the advantages of saving operation time and medical cost and reducing the time of exposing the patient to the ray during the operation, but because of the single-side puncture, the position of the lesion which can be reached by the puncture device is limited, and the single-side bone cement injection is easy to cause uneven distribution of the bone cement in the cavity.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims at the defects and provides a spinal column implantation channel instrument which provides a controllable bending channel for a surgical instrument so as to enable the surgical instrument to reach the position in the spine, which is desired by a doctor.
The technical scheme is as follows:
a spinal column implantation channel instrument comprises a delivery pipe and a driving module connected with the delivery pipe;
the conveying pipe is a hollow pipeline with the inner diameter larger than the outer diameter of the spine strengthening surgical instrument, and the tail end of the conveying pipe is provided with a controllable bending section; the driving module is connected with the controllable bending section of the conveying pipe through a driving rope, and the controllable bending section is pulled through the driving rope to realize bending.
The driving module comprises a handle, a wire fixing barrel and a rotating shaft;
the handle is of a step-type hollow structure and comprises a pipe penetrating groove and a rotating shaft groove which are communicated with each other; the straight pipe section at the front end of the conveying pipe is fixedly arranged in the pipe penetrating groove of the handle; the wire fixing barrel is arranged at the step of the hollow part of the handle; the rotating shaft is arranged in the rotating shaft groove through a rotating bearing and connected with the wire fixing barrel, the driving rope is wound on the wire fixing barrel through rotating the rotating shaft, and the controllable bending section is pulled through the driving rope to realize bending.
And the cylinder body of the wire fixing cylinder is provided with a wire fixing groove for winding the driving rope.
A bearing installation cylinder body extends outwards from the upper end of the wire fixing cylinder, and the driving bearing is fixedly installed on the bearing installation cylinder body; the rotating shaft is installed in the rotating shaft groove through the driving bearing, and the upper end of the rotating shaft is connected with the opening of the rotating shaft groove through the rotating bearing.
The wire fixing barrel is fixedly arranged at the step of the hollow part of the handle; the lower end of the wire fixing barrel is provided with wire feeding holes corresponding to the driving ropes in number, and the wire fixing groove is provided with wire fixing holes communicated with the wire feeding holes; the front end of the rotating shaft is sleeved outside the wire fixing barrel, and a fixing hole for fixing the driving rope is formed in the position, opposite to the wire fixing groove in the barrel body of the wire fixing barrel, of the tail end of the rotating shaft;
the driving rope penetrates through the inner side of the straight pipe section of the conveying pipe, then enters from the wire inlet hole, penetrates out of the wire fixing hole and is fixed on the fixing hole at the tail end of the rotating shaft.
The lower end of the wire fixing barrel extends outwards to form at least two limiting fixing columns, limiting grooves correspondingly matched with the limiting fixing columns are correspondingly formed in the upper end of the straight pipe section of the conveying pipe, and the wire fixing barrel is connected with the straight pipe section through the matching between the limiting fixing columns and the limiting grooves; the wire fixing groove is provided with a wire fixing hole communicated with the wire feeding hole; the driving rope penetrates through the inner side of the straight pipe section of the conveying pipe, enters from the wire inlet hole and is fixed on the wire fixing hole; the rotating shaft is fixedly connected with the thread fixing cylinder.
The number of the wire fixing holes is two, and the two wire fixing holes are symmetrically arranged on the wire fixing groove.
The rotary shaft is fixedly connected with a rotary wheel, the rotary wheel is driven to rotate left and right through manual operation or a driving device is connected to drive the rotary wheel, and then the driving rope is pulled to realize the bending of the controllable bending section.
The outer side of the driving module is provided with a rotating structure fixedly connected with the driving module, and the multi-angle deflection of the whole spinal implantation channel instrument is realized through the rotating direction of the rotating structure.
The controllable bending section comprises at least two bone sections and a driving rope, the bone sections are of a hollow symmetrical structure, high points which are symmetrically arranged are arranged at two ends of the bone sections, and the high points of the adjacent bone sections are abutted; at least two wire penetrating holes are symmetrically arranged at positions except high points at two ends of the bone section, and the driving rope penetrates into the wire penetrating holes.
The controllably curved segment also includes a spring that envelopes over all of the condyles.
The controllable bending section further comprises an insulating layer, and an insulating layer is arranged outside the spring.
The bone joint is formed by symmetrically cutting off triangular blocks at two ends of a hollow cylinder respectively.
The bone joint is formed by symmetrically cutting arc-shaped blocks at two ends of a hollow cylinder respectively.
The two ends of the illustrated condyle both adopt a symmetrical saddle-shaped structure.
The end face of one end of each condyle is provided with a plurality of grooves, the end face of the other end of each condyle is provided with a tooth block meshed with the grooves, and the grooves and the tooth blocks are meshed with each other when the adjacent two condyles rotate.
And a threading hole is arranged at the lowest point of the two ends of the condyle.
And a threading hole is arranged between the highest point and the lowest point at the two ends of the bone section.
The driving rope adopts the steel wire, the isolation layer adopts rubber or silica gel.
The pipe diameter of the conveying pipe is 3.5-4.5 mm.
Has the advantages that: the spinal column implantation channel instrument extends into the position of the spinal focus of a patient, can reach the rotation direction of the control knob at the position in the spinal column according to the requirement of the actual surgical instrument, and provides a controllable bending channel for the surgical instrument, so that the surgical instrument can reach the position in the spinal column which a doctor wants.
Drawings
Fig. 1 is a schematic view of the overall construction of the spinal implant access instrument of the present invention.
Fig. 2 is a schematic view of a delivery tube of the present invention.
FIG. 3 is a schematic view of the end bendable segment of the present invention.
FIG. 4 is a schematic view of the construction of the condyle in the end bendable section of the present invention.
Fig. 5 is a schematic structural diagram of a driving module of the present invention.
Fig. 6 is a schematic structural view of the wire fixing barrel of the present invention.
Wherein:
10. spinal augmentation surgical instruments; 20. a delivery pipe; 30. a drive module; 40. rotating the wheel;
21. a controllable bending section; 22. a straight pipe section;
211. a condyle; 212. a drive rope; 213. a spring; 214. an insulating layer;
210. threading holes;
31. a handle; 33. a wire fixing cylinder; 34. a drive bearing; 35. a rotating shaft; 36. a rotating bearing; 37. a gland;
331. a wire fixing groove; 332. fixing a thread hole; 333. a wire inlet hole; 334. and limiting and fixing columns.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
The controllable bending spinal column implanting channel instrument provides a controllable bending channel for the surgical instrument in the process of the vertebra strengthening operation, thereby leading the surgical instrument to reach the position which is wanted by a doctor in the vertebra. Fig. 1 is a schematic view of the overall construction of the spinal implant access instrument of the present invention. As shown in fig. 1, the controllable bending spinal augmentation implantation channel structure of the present invention comprises a delivery pipe 20, a driving module 30 and a rotating wheel 40, wherein the whole structure is hollow, i.e. the delivery pipe 20, the driving module 30 and the rotating wheel 40 are all hollow structures, and a spinal augmentation surgical instrument 10 penetrates into the hollow structures to perform spinal augmentation surgery, as shown in fig. 1. The spinal augmentation instrument shown in fig. 1 is a dilatation balloon, but may be other types of instruments used in vertebroplasty, such as bone cement injection heads.
Fig. 2 is a schematic view of a delivery tube of the present invention. As shown in fig. 2, the delivery pipe 20 comprises a controllable bending section 21 and a straight pipe section 22, the straight pipe section 22 is of a rigid structure, the controllable bending section 21 and the straight pipe section 22 are both of hollow structures, and the inner diameter of the controllable bending section 21 and the straight pipe section 22 is larger than the outer diameter of the spine augmentation surgical instrument, and in the invention, the pipe diameters of the controllable bending section 21 and the straight pipe section 22 are both 3.5-4.5 mm.
FIG. 3 is a schematic view of a controlled bend segment of the present invention. As shown in fig. 3, the controllable bending section 21 includes a driving rope 212, a plurality of bone segments 211, a spring 213 and an insulating layer 214, wherein the number of bone segments 211 is determined according to the length of the controllable bending section 21; wherein, the bone segments 211 are shown in fig. 4, the bone segments 211 are in a hollow symmetrical structure, high points are symmetrically arranged at two ends of the bone segments 211, and the high points of the adjacent bone segments 211 are butted; at least two wire penetrating holes 210 are symmetrically arranged at positions except for high points at two ends of the condyle 211, the wire penetrating holes 210 are passages of a driving rope 212, the driving rope 212 penetrates through the wire penetrating holes 210, and all the condyle 211 are fixed in series. The number of the condyles 211 is at least two. The spring 213 is wrapped outside all the bone segments 211 to prevent the bone segments from being dislocated, thereby playing a role of limiting. An isolation layer 214 is further arranged outside the spring 213, and the isolation layer 214 is made of rubber or silica gel and plays a role in separating the internal structure of the instrument from the spine.
In an embodiment of the present invention, the condyle 211 is formed by symmetrically cutting triangular blocks at two ends of a hollow cylinder, and the slope of the cut triangular block is determined according to the bending angle of the controllable bending section 21.
In another embodiment of the present invention, the condyle 211 is formed by symmetrically cutting arc-shaped blocks at two ends of a hollow cylinder, and the radian of the cut arc-shaped blocks is determined according to the bending angle of the controllable bending section 21.
In another embodiment of the present invention, the two ends of the bone segments 211 are symmetrically arranged in a saddle shape, and the curvature of the saddle shape is set according to the bending angle of the controllable bending section 21.
In the invention, a plurality of grooves can be arranged on the end surface of one end of each condyle 211, tooth blocks meshed with the grooves are arranged on the end surface of the other end of each condyle 211, and when two adjacent condyles 211 are matched, the grooves are meshed with the tooth blocks, so that the stability of the motion between the adjacent condyles 211 is ensured.
In one embodiment of the present invention, the threading holes 210 are disposed at the lowest point of the two ends of the bone segments 211, so as to achieve the bending angle adjustment of the maximum controllable bending section 21.
In another embodiment of the present invention, the threading hole 210 is disposed between the highest point and the lowest point of the two ends of the condyle 211, and the specific disposition position is set according to the bending angle of the controllable bending section 21.
In the present invention, the material used for the drive rope 212 is steel wire.
Fig. 5 is a schematic structural diagram of a driving module of the present invention. As shown in fig. 5, the driving module 30 includes a handle 31, a wire fixing cylinder 33, a driving bearing 34, and a rotating shaft 35. The handle 31 is of a step-type hollow structure and comprises a pipe penetrating groove and a rotating shaft groove which are communicated with each other, and the inner diameter of the pipe penetrating groove is larger than the outer diameter of the straight pipe section 22 of the conveying pipe 20. The straight pipe section 22 of the delivery pipe 20 is mounted in the pipe penetrating groove of the handle 31 by gluing or welding. The wire fixing barrel 33 is a cylindrical structure, and is installed at a step of a hollow portion of the handle 31.
In the invention, a bearing installation cylinder body extends outwards from the upper end of the wire fixing cylinder 33, and a driving bearing 34 is fixedly installed on the bearing installation cylinder body; the rotary shaft 35 is mounted in the rotary shaft groove through the driving bearing 34, and the upper end of the rotary shaft 35 is connected to the rotary shaft groove opening through the rotary bearing 36.
In an embodiment of the present invention, at least two limiting fixing posts 334 extend outwards from the lower end of the filament fixing barrel 33, as shown in fig. 6. A limiting groove matched with the limiting fixing column 334 is correspondingly arranged at the upper end of the straight pipe section 22 of the conveying pipe 20, the wire fixing cylinder 33 is connected with the straight pipe section 22 by inserting the limiting fixing column 334 into the limiting groove, and the wire fixing cylinder 33 is connected with the straight pipe section 22 by matching between the limiting fixing column 334 and the limiting groove. The rotating shaft 35 is fixedly connected with the upper end of the wire fixing barrel 33, and the upper end of the rotating shaft 35 is connected with the opening of the rotating shaft groove through a rotating bearing; the drive bearing 34 and the rotation bearing 36 function as a rotational support.
Fig. 6 is a schematic structural view of the wire fixing barrel of the present invention. As shown in fig. 6, the wire fixing cylinder 33 includes a wire fixing groove 331, a wire fixing hole 332 and a wire feeding hole 333, the wire fixing groove 331 is an annular groove formed on the cylinder body of the wire fixing cylinder 33 and is used for providing a winding fixing path of the driving rope 212; the lower end of the wire fixing barrel 33 is provided with wire inlet holes 333 corresponding to the driving ropes 212 in number, the wire fixing groove 331 is provided with two wire fixing holes 332 communicated with the wire inlet holes 333, and the two wire fixing holes 333 are symmetrically arranged on the wire fixing groove 331; the driving rope 212 passes through the inner side of the straight pipe section 22 of the conveying pipe 20, enters from the wire feeding hole 333 and is fixed on the wire fixing hole 332 by gluing. In this embodiment, the driving rope 212 may be fixed to the rotating shaft 35 after passing through the wire fixing hole 332. When the rotating shaft 35 rotates, the rotating shaft 35 drives the wire fixing barrel 33 to rotate together, and then the driving rope 212 is pulled, so that the deflection of the controllable bending section 21 is realized.
In another embodiment of the present invention, the wire fixing barrel 33 is fixedly installed at a step of the hollow portion of the handle 31; a bearing installation cylinder body extends outwards from the upper end of the wire fixing cylinder 33, the driving bearing 34 is fixedly installed on the bearing installation cylinder body, and the rotating shaft 35 is installed in the rotating shaft groove through the driving bearing 34 and is fixedly connected with the driving bearing 34 so as to rotate relative to the wire fixing cylinder 33; the front end of the wire fixing cylinder is sleeved outside the wire fixing cylinder 33, and a fixing hole for fixing the driving rope 212 is formed in the position, corresponding to the wire fixing groove 331 on the cylinder body of the wire fixing cylinder 33, of the tail end of the wire fixing cylinder; the rotating shaft 35 can rotate relative to the wire fixing barrel 33; the driving rope 212 passes through the inner side of the straight pipe section 22 of the conveying pipe 20, enters from the wire inlet hole 333, passes through the wire fixing hole 332, is fixed on the rotating shaft 35 through gluing, and rotates relative to the wire fixing barrel 33 through the rotating shaft 35, so as to pull the driving rope 212.
As shown in fig. 5, the rotary wheel 40 is fixedly installed outside the rotating shaft 35, and the rotary wheel 40 is driven to rotate left and right by manual operation or a connection driving device, so as to pull the driving rope 212 to realize the bending of the controllable bending section 21.
In the present invention, in order to realize multi-angle deflection, a rotating structure fixedly connected with the whole handle 30 can be further installed at the outer side of the rotating wheel 40, and the multi-angle deflection of the whole spinal implantation channel instrument can be realized through the rotating direction of the rotating structure.
The working principle of the invention is as follows:
the spinal column implanting channel instrument extends into the position near the spinal focus of a patient, the rotation direction of the knob is controlled according to the focus position required to be reached, then the driving rope 212 is pulled, the driving rope 212 drives the bone joint 211 to move, the adjacent high points of the bone joint 211 are propped against under the limitation of the spring 213, and the bone joint 211 rotates along the high points under the driving of the driving rope 212, so that the deflection of the controllable bending section 21 is realized.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the foregoing embodiments, and various equivalent changes (such as number, shape, position, etc.) may be made to the technical solution of the present invention within the technical spirit of the present invention, and these equivalent changes are all within the protection scope of the present invention.
Claims (20)
1. A spinal implant access instrument, comprising: comprises a delivery pipe (20) and a driving module connected with the delivery pipe (20);
the conveying pipe (20) is a hollow pipeline with the inner diameter larger than the outer diameter of the spine strengthening surgical instrument, and a controllable bending section (21) is arranged at the tail end of the conveying pipe (20); the driving module is connected with the controllable bending section (21) of the conveying pipe (20) through a driving rope (212), and the controllable bending section (21) is pulled through the driving rope (212) to realize bending.
2. The spinal implant access instrument of claim 1, wherein: the driving module comprises a handle (31), a wire fixing barrel (33) and a rotating shaft (35);
the handle (31) is of a step-shaped hollow structure and comprises a pipe penetrating groove and a rotating shaft groove which are communicated with each other; the straight pipe section (22) at the front end of the conveying pipe (20) is fixedly arranged in a pipe penetrating groove of the handle (31); the wire fixing barrel (33) is arranged at the step of the hollow part of the handle (31); a rotating shaft (35) is installed in the rotating shaft groove through a rotating bearing, the rotating shaft (35) is connected with the wire fixing barrel (33), the driving rope (212) is wound on the wire fixing barrel (33) through rotating the rotating shaft (35), and then the controllable bending section (21) is pulled through the driving rope (212) to realize bending.
3. The spinal implant access instrument of claim 2, wherein: the cylinder body of the wire fixing cylinder (33) is provided with a wire fixing groove (331) for winding the driving rope (212).
4. The spinal implant access instrument of claim 2, wherein: a bearing installation cylinder body extends outwards from the upper end of the wire fixing cylinder (33), and the driving bearing (34) is fixedly installed on the bearing installation cylinder body; the rotating shaft (35) is installed in the rotating shaft groove through the driving bearing (34), and the upper end of the rotating shaft (35) is connected with the opening of the rotating shaft groove through a rotating bearing (36).
5. The spinal implant access instrument of claim 3, wherein: the wire fixing barrel (33) is fixedly arranged at the step of the hollow part of the handle (31); the lower end of the wire fixing barrel (33) is provided with wire inlet holes (333) the number of which corresponds to that of the driving ropes (212), and the wire fixing groove (331) is provided with wire fixing holes (332) communicated with the wire inlet holes (333); the front end of the rotating shaft (35) is sleeved outside the wire fixing barrel (33), and a fixing hole for fixing the driving rope (212) is formed in the position, opposite to a wire fixing groove (331) on the barrel body of the wire fixing barrel (33), of the tail end of the rotating shaft (35);
the driving rope (212) penetrates through the inner side of the straight pipe section (22) of the conveying pipe (20), enters from the thread inlet hole (333), penetrates out of the thread fixing hole (332) and is fixed on a fixing hole at the tail end of the rotating shaft (35).
6. The spinal implant access instrument of claim 3, wherein: the lower end of the wire fixing barrel (33) extends outwards to form at least two limiting fixing columns (334), the upper end of the straight pipe section (22) of the conveying pipe (20) is correspondingly provided with a limiting groove corresponding to the limiting fixing columns (334), and the wire fixing barrel (33) is connected with the straight pipe section (22) through the matching between the limiting fixing columns (334) and the limiting groove; the wire fixing groove (331) is provided with a wire fixing hole (332) communicated with the wire inlet hole (333); the driving rope (212) penetrates through the inner side of the straight pipe section (22) of the conveying pipe (20), enters from the wire inlet hole (333) and is fixed on the wire fixing hole (332);
the rotating shaft (35) is fixedly connected with the wire fixing barrel (33).
7. A spinal implant access instrument as recited in claim 5 or 6, wherein: the number of the wire fixing holes (333) is two, and the two wire fixing holes are symmetrically arranged on the wire fixing groove (331).
8. The spinal implant access instrument of claim 3, wherein: the rotary shaft (35) is fixedly connected with a rotary wheel (40), the rotary wheel (40) is driven to rotate left and right through manual operation or connection of a driving device, and then the driving rope (212) is pulled to achieve bending of the controllable bending section (21).
9. The spinal implant access instrument of claim 1, wherein: the outer side of the driving module is provided with a rotating structure fixedly connected with the driving module, and the multi-angle deflection of the whole spinal implantation channel instrument is realized through the rotating direction of the rotating structure.
10. The spinal implant access instrument of claim 1, wherein: the controllable bending section (21) comprises at least two bone sections (211) and a driving rope (212), the bone sections (211) are of a hollow symmetrical structure, high points which are symmetrically arranged are arranged at two ends of each bone section (211), and the high points of the adjacent bone sections (211) are mutually abutted; at least two symmetrically arranged threading holes (210) are formed in the positions of the high points of the two ends of the bone joint (211), and the driving rope (212) penetrates into the threading holes (210).
11. The spinal implant access instrument of claim 10, wherein: the controllably curved segment (21) further includes a spring (213), the spring (213) enveloping all of the condyles (211).
12. The spinal implant access instrument of claim 11, wherein: the controllable bending section (21) further comprises an insulating layer (214), and an insulating layer (214) is arranged outside the spring (213).
13. The spinal implant access instrument of claim 10, wherein: the bone joint (211) is formed by symmetrically cutting off triangular blocks at two ends of a hollow cylinder respectively.
14. The spinal implant access instrument of claim 10, wherein: the bone joint (211) is formed by symmetrically cutting arc-shaped blocks at two ends of a hollow cylinder respectively.
15. The spinal implant access instrument of claim 10, wherein: the two ends of the illustrated condyle (211) both adopt a symmetrical saddle-shaped structure.
16. The spinal implant access instrument of claim 10, wherein: the end face of one end of each condyle (211) is provided with a plurality of grooves, the end face of the other end of each condyle (211) is provided with tooth blocks meshed with the grooves, and the grooves and the tooth blocks are meshed with each other when the adjacent two condyles (211) rotate.
17. The spinal implant access instrument of claim 10, wherein: and a threading hole (210) is arranged at the lowest point of the two ends of the condyle (211).
18. The spinal implant access instrument of claim 10, wherein: a threading hole (210) is arranged between the highest point and the lowest point of the two ends of the bone node (211).
19. The spinal implant access instrument of claim 10, wherein: the driving rope (212) is made of steel wires, and the isolation layer (214) is made of rubber or silica gel.
20. The spinal implant access instrument of claim 1, wherein: the pipe diameters of the conveying pipes (20) are all 3.5-4.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010046959.4A CN111202549B (en) | 2020-01-16 | 2020-01-16 | Spinal implantation channel instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010046959.4A CN111202549B (en) | 2020-01-16 | 2020-01-16 | Spinal implantation channel instrument |
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| CN111202549A true CN111202549A (en) | 2020-05-29 |
| CN111202549B CN111202549B (en) | 2022-02-15 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050216018A1 (en) * | 2004-03-29 | 2005-09-29 | Sennett Andrew R | Orthopedic surgery access devices |
| CN102525595A (en) * | 2011-11-14 | 2012-07-04 | 杭州好克光电仪器有限公司 | Bendable and visible surgical clamp |
| US20120265210A1 (en) * | 2011-04-15 | 2012-10-18 | Alexander Grinberg | Vertebroplasty Curved Needle |
| US20130041377A1 (en) * | 2011-08-09 | 2013-02-14 | Kyle Kuntz | Articulated cavity creator |
-
2020
- 2020-01-16 CN CN202010046959.4A patent/CN111202549B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050216018A1 (en) * | 2004-03-29 | 2005-09-29 | Sennett Andrew R | Orthopedic surgery access devices |
| US20120265210A1 (en) * | 2011-04-15 | 2012-10-18 | Alexander Grinberg | Vertebroplasty Curved Needle |
| US20130041377A1 (en) * | 2011-08-09 | 2013-02-14 | Kyle Kuntz | Articulated cavity creator |
| CN102525595A (en) * | 2011-11-14 | 2012-07-04 | 杭州好克光电仪器有限公司 | Bendable and visible surgical clamp |
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| CN111202549B (en) | 2022-02-15 |
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Address after: 210000 building 3, No. 34, Dazhou Road, Yuhuatai District, Nanjing, Jiangsu Province Patentee after: Tuodao Medical Technology Co.,Ltd. Address before: Room 102-86, building 6, 57 Andemen street, Yuhuatai District, Nanjing, Jiangsu 210000 Patentee before: Nanjing Tuodao Medical Technology Co.,Ltd. |
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