CN110051419B - In-situ rod shearing device - Google Patents
In-situ rod shearing device Download PDFInfo
- Publication number
- CN110051419B CN110051419B CN201910355582.8A CN201910355582A CN110051419B CN 110051419 B CN110051419 B CN 110051419B CN 201910355582 A CN201910355582 A CN 201910355582A CN 110051419 B CN110051419 B CN 110051419B
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- rod
- clamping
- sealing
- situ
- wire saw
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 31
- 238000010008 shearing Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 238000011010 flushing procedure Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 230000010485 coping Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002504 physiological saline solution Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 206010039722 scoliosis Diseases 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides an in-situ rod shearing device, which belongs to the field of surgical tools and comprises a handheld part, a swinging mechanism, two clamping mechanisms, a wire saw and a sealing mechanism. The swing mechanism is arranged in the hand-held part and provided with a reciprocating swing arm. The two clamping mechanisms are connected to the handheld part and are respectively provided with clamping heads for clamping the spine fixing rod, and a cutting space for enabling the spine fixing rod to pass through is formed between the two clamping heads. The wire saw is arranged in the cutting space, connected with the reciprocating swing arm and used for encircling the periphery of the spine fixing rod. The sealing mechanism is connected with the hand-held part and is used for sealing the space to be cut. Through fixture's gripping head centre gripping backbone fixed stick, utilize the coping saw to encircle in the periphery of backbone fixed stick and realize cutting through the reciprocal wire saw that pulls of compound swing arm, occupation space is few, and sealing mechanism seals the cutting space, can prevent that the piece that the cutting produced from splashing, more is suitable for the operation in use.
Description
Technical Field
The invention belongs to the technical field of surgical tools, and particularly relates to an in-situ rod shearing device.
Background
The scoliosis correction operation is mainly fixed by a nail-bar system at present. In scoliosis correction surgery, a fixing rod needs to be fixed on a spine, then the spine at a lateral bend is gradually reset through the fixing rod, a part of the fixing rod grows after the spine is reset, the part needs to be cut off, but at the moment, the fixing rod is fixed with the spine, the strength and the hardness of the fixing rod are large, the existing rod shearing tool is large, the fixing rod fixed on the spine cannot be sheared directly, the fixing rod can be cut at present only through other modes to maintain the reset of the spine, then the fixing rod is taken down and cut to a proper length, and then the fixing rod is fixed on the spine again. The process of removing the fixation rod and re-fixing greatly prolongs the operation time and increases the operation risk.
Disclosure of Invention
The invention aims to provide an in-situ rod shearing device, which solves the technical problems that the existing shearing tool in the prior art is not suitable for directly shearing a fixing rod fixed on a spine, and only the spine fixing rod can be removed from the spine for shearing, so that the workload of doctors is increased, the operation time is prolonged and the operation risk is increased.
In order to achieve the above purpose, the invention adopts the following technical scheme: provided is an in-situ rod shearing device, comprising:
A hand-held part;
A swing mechanism provided in the hand-held portion and having a reciprocating swing arm;
Two clamping mechanisms connected to the same side of the hand-held part and respectively provided with clamping heads for clamping the spine fixing rod, wherein a cutting space for allowing the spine fixing rod to pass through is formed between the two clamping heads;
the wire saw is arranged in the cutting space, and two ends of the wire saw are respectively connected with the reciprocating swing arms and are used for encircling the periphery of the spine fixing rod; and
And the sealing mechanism is connected with the handheld part and is used for sealing the cutting space.
Further, the swing mechanism includes:
The rotating unit is arranged in the handheld part; and
The eccentric wheel is arranged on the rotating shaft of the rotating unit;
The middle part of the reciprocating swing arm is hinged with the handheld part, two ends of the reciprocating swing arm are respectively connected with two ends of the wire saw, a trepanning is arranged at one end of the reciprocating swing arm, and the eccentric wheel is positioned in the trepanning and is in sliding butt joint with the inner wall of the trepanning.
Further, the end of the jigsaw is detachably connected with the end of the reciprocating swing arm.
Further, the clamping mechanism includes:
one end of the extension rod is connected with the handheld part;
the two clamping arms are arranged at the other end of the extension rod to form the clamping head; and
The folding pipe is sleeved outside the extension rod, one end of the folding pipe is in threaded connection with the extension rod, the inner wall of the other end of the folding pipe is provided with a folding surface which is sleeved on the periphery of the two clamping arms, the folding surface is a conical surface, and the outer side surface of the clamping arms is in sliding fit with the folding surface.
Further, the sealing mechanism includes:
the two sealing plates are respectively connected with the handheld part and are respectively arranged at two sides of the cutting space in the axial direction of the spine fixing rod, and the inner side surface of each sealing plate is provided with a sliding rail arranged around the bottom of the cutting space; and
And the sealing cover is connected with the two sliding rails in a sliding manner and is used for sealing the bottom of the cutting space.
Further, a through hole is formed in the sealing plate, a gap is formed in one radial side of the through hole in an open mode, and the gap is used for enabling the spine fixing rod to enter the through hole along the gap.
Further, the sliding rail comprises two concentric arc sections which are respectively positioned at two sides of the notch, and the sealing plate is an arc plate and is used for sliding back and forth between the two arc sections.
Further, a push button is arranged on the handheld part, and a push rod for pushing the sealing cover to slide along the sliding rail is connected between the push button and the side edge of the sealing cover.
Further, a flushing pipe with the spraying direction aligned with the wire saw is arranged on the inner side of the sealing plate.
Further, a pipette communicating with the cutting space is arranged on the inner side of the sealing plate.
The in-situ rod shearing device provided by the invention has the beneficial effects that: compared with the prior art, the in-situ rod cutting device has the advantages that after the spine fixing rod is fixed on the spine, redundant parts of the spine fixing rod can be penetrated in the cutting space, then the spine fixing rod is clamped through the clamping head of the clamping mechanism, the scroll saw is used for encircling the periphery of the spine fixing rod, and the scroll saw is pulled in a reciprocating manner through the compound swing arm, so that the spine fixing rod is cut off, and in the process, the cutting space is closed by the sealing mechanism, so that fragments generated by cutting can be prevented from splashing. The wire saw is used for cutting around the periphery of the spine fixing rod, so that the occupied space is small, and the sealing mechanism is used for collecting scraps, so that the wire saw is more suitable for being used in an operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of an in-situ rod cutter provided by an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken at-A-A of FIG. 1;
Fig. 3 is a cross-sectional view at B-B in fig. 1.
Wherein, each reference sign in the figure:
1-a hand-held part; 11-push button; 12-pushing rod; 21-a reciprocating swing arm; 22-a rotation unit; 23-eccentric wheel; 24-trepanning; 3-a clamping mechanism; 31-a clamping head; 32-a cutting space; 33-extension bars; 34-clamping arms; 35-folding the tube; 36-folding surface; 4-wire saw; 5-a sealing mechanism; 51-sealing plate; 511-vias; 512-notch; 513-a flush tube; 514-pipette; 52-sliding rails; 53-capping; 6-spinal fixation rod.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, an in-situ rod shearing device according to an embodiment of the present invention will now be described. The in-situ rod shearing device comprises a handheld part 1, a swinging mechanism, two clamping mechanisms 3, a wire saw 4 and a sealing mechanism 5.
The swing mechanism is provided in the hand-held portion 1, and has a reciprocating swing arm 21. The two clamping mechanisms 3 are connected to the same side of the hand holding part 1, and are respectively provided with clamping heads 31 for clamping the spine fixing rod 6, and a cutting space 32 for allowing the spine fixing rod 6 to pass through is formed between the two clamping heads 31. The wire saw 4 is provided in the cutting space 32, and both ends thereof are respectively connected to the reciprocating swing arms 21 for encircling the outer periphery of the spinal fixing rod 6. A sealing mechanism 5 is connected to the handpiece 1 for closing the cutting space 32.
Compared with the prior art, after the spine fixing rod 6 is fixed on the spine, the in-situ rod cutting device of the embodiment of the invention can enable redundant parts of the spine fixing rod 6 to be penetrated in the cutting space 32, then the spine fixing rod 6 is clamped by the clamping head 31 of the clamping mechanism 3, the wire saw 4 is used for encircling the periphery of the spine fixing rod 6, and the wire saw 4 is pulled back and forth by the reciprocating swing arm 21, so that the spine fixing rod 6 is cut off, and in the process, the cutting space 32 is closed by the sealing mechanism 5, so that scraps generated by cutting can be prevented from splashing. By cutting the wire saw 4 around the periphery of the spinal fixation rod 6, less space is occupied and the sealing mechanism 5 is used to collect debris, which is more suitable for use in surgery.
Specifically, the rear end of the hand-held portion 1 is used for gripping, and the swing mechanism and the two holding mechanisms 3 are both connected to the front end of the hand-held portion 1. Both ends of the wire saw 4 are connected to both ends of the reciprocating swing arm 21 through wires, respectively. The outside of each of the two clamping mechanisms 3 is also covered with a protective hand-held part connected with the hand-held part 1, so that external objects are prevented from interfering with the clamping mechanisms 3.
Referring to fig. 1 and 2 together, as an embodiment of the in-situ rod shearing device provided by the present invention, the swinging mechanism includes a rotating unit 22 and an eccentric wheel 23.
The rotation unit 22 is provided in the hand-held portion 1. The eccentric wheel 23 is provided on the rotation shaft of the rotation unit 22. The middle part of the reciprocating swing arm 21 is hinged with the handheld part 1, two ends of the reciprocating swing arm 21 are respectively connected with two ends of the wire saw 4, one end of the reciprocating swing arm 21 is provided with a sleeve hole 24, and the eccentric wheel 23 is positioned in the sleeve hole 24 and is in sliding abutting joint with the inner wall of the sleeve hole 24.
Specifically, the rotation unit 22 may employ a motor and a decelerator connected to the motor, and the eccentric 23 is connected to an output shaft of the decelerator. The eccentric wheel 23 is driven to rotate by the rotating unit 22, so that the eccentric wheel 23 slides along the inner wall of the trepanning 24, and the reciprocating swing arm 21 is further pushed to swing reciprocally around the rotating shaft of the reciprocating swing arm. After encircling the spine fixing rod 6, the wire saw 4 is fixed to both ends of the reciprocating swing arm 21. The reciprocating swing arm 21 swings to thereby reciprocally pull the wire saw 4, thereby cutting the spinal fixation rod 6.
As a specific embodiment of the in-situ rod shearing device provided by the invention, the end of the wire saw 4 is detachably connected with the end of the reciprocating swing arm 21. Such an arrangement may be achieved by disconnecting the end of the wire saw 4 from the end of the reciprocating swing arm 21, then wrapping the wire saw 4 around the spinal fixation rod 6 in the cutting space 32, and then finally connecting the end of the wire saw 4 to the end of the reciprocating swing arm 21.
Specifically, the end of the wire saw 4 is provided with a hook, and the end of the corresponding reciprocating swing arm 21 is provided with a hook hole, and the end of the wire saw 4 is detachably connected with the end of the reciprocating swing arm 21 by hooking the hook into the hook hole. More specifically, the end of the wire saw 4 is connected to the end of the reciprocating swing arm 21 by an extension spring. So that the tension spring pulls the wire saw 4 to maintain the pressure of the wire saw 4 against the spinal fixation rod 6 when the wire saw 4 cuts the spinal fixation rod 6.
Referring to fig. 1 and 3 together, as an embodiment of the in-situ rod shearing device provided by the present invention, the clamping mechanism 3 includes an extension rod 33, two clamping arms 34 and a folding tube 35.
One end of the extension rod 33 is connected to the hand-held portion 1. Two clamp arms 34 are provided on the other end of the extension rod 33, forming the clamp head 31. The folding tube 35 is sleeved outside the extension rod 33, one end of the folding tube is in threaded connection with the extension rod 33, the inner wall of the other end of the folding tube is provided with a folding surface 36 which is sleeved on the periphery of the two clamping arms 34, the folding surface 36 is a conical surface, and the outer side surfaces of the clamping arms 34 are in sliding fit with the folding surface 36.
Specifically, the extension rod 33 is a long straight rod, the upper end of which is fixed to the hand-held portion 1 and the outer periphery of which is provided with threads, and the lower end of which is provided with two clip arms 34. The folding tube 35 is a long straight tube coaxially sleeved outside the extension rod 33, and the inner wall of the upper end of the folding tube is provided with threads connected with the threads at the upper end of the extension rod 33. The lower end of the folding tube 35 is bell-mouthed, and the inner wall forms a folding surface 36. By rotating the folding tube 35, the folding tube 35 slides downwards, the folding surface 36 at the lower end of the folding tube 35 is sleeved on the peripheries of the two clamping arms 34, the folding tube 35 is continuously rotated, the folding tube 35 is continuously slid downwards, the folding surface 36 pushes against the outer side surface of the clamping arms 34, and the two clamping arms 34 are close to each other in opposite directions to clamp the middle spinal fixation rod 6.
Referring to fig. 1 and 2 together, as an embodiment of the in-situ rod shearing device provided by the present invention, the sealing mechanism 5 includes two sealing plates 51 and a sealing cover 53.
Two sealing plates 51 are respectively connected with the hand holding part 1 and are respectively arranged at two sides of the cutting space 32 in the axial direction of the spine fixing rod 6, and the inner side surface of each sealing plate 51 is provided with a sliding rail 52 arranged around the bottom of the cutting space 32. The cover 53 is slidably connected to the two slide rails 52, respectively, for closing the bottom of the cutting space 32.
Specifically, two sealing plates 51 are parallel to each other, and the upper end of each sealing plate 51 is fixed to the hand-held portion 1. The two sealing plates 51 are oppositely arranged, the opposite inner side faces are respectively provided with a sliding rail 52, the sealing cover 53 is located between the two sealing plates 51, two ends of the spine fixing rod 6 in the axial direction are respectively connected with the two sliding rails 52 in a sliding mode, the sealing cover 53 can slide to the lower portion of the cutting space 32 along the sliding rails 52, the bottom of the cutting space 32 is sealed, and chips generated by cutting of the wire saw 4 can be collected.
More specifically, the sealing plate 51 may be an inner plate of the protective grip outside the clamping mechanism 3.
Referring to fig. 2, as a specific embodiment of the in-situ rod cutting device provided by the invention, a through hole 511 is formed in the sealing plate 51, a gap 512 is formed on one radial side of the through hole 511, and the gap 512 is used for allowing the spinal fixation rod 6 to enter the through hole 511 along the gap 512.
Specifically, the opening direction of the notch 512 is the same as the opening direction of the nip between the two clip arms 34. More specifically, the opening direction of the clamping gap of the two clamp arms 34 is downward, and the opening direction of the open notch 512 is downward, so that the spinal fixation rod 6 can enter the through hole 511 from below from the notch 512, while the spinal fixation rod 6 also enters the clamping gap between the two clamp arms 34.
Referring to fig. 1 and 2 together, as a specific embodiment of the in-situ rod shearing device provided by the present invention, the sliding rail 52 includes two concentric arc segments respectively located at two sides of the notch 512, and the sealing plate 51 is an arc plate for sliding reciprocally between the two arc segments.
Specifically, the plate surface of the sealing plate 51 is a curved surface, and the sealing plate 51 may be a hard plate bent into a curved surface. The sliding rail 52 is arc-shaped and is cut into two sections by the notch 512. The sealing plate 51 can slide along the sliding rail 52 over the notch 512 to close the bottom of the cutting space 32. The seal plate 51 may also be removed from the notch 512 to allow the spinal fixation rod 6 to pass freely through the notch 512.
Referring to fig. 1 and fig. 2 together, as a specific embodiment of the in-situ rod shearing device provided by the present invention, a push button 11 is provided on the hand-held portion 1, and a push rod 12 for pushing the cover 53 to slide along the sliding rail 52 is connected between the push button 11 and the side edge of the cover 53. The bottom of the cutting space 32 is closed by pushing the push button 11 and then pushing the cover 53 by the push rod 12 to slide along the slide rail 52.
Referring to fig. 1 and 2 together, as an embodiment of the in-situ rod shearing device provided by the present invention, a flushing pipe 513 with a jet direction aligned with the wire saw 4 is provided inside the sealing plate 51. The flushing pipe 513 may be connected to a physiological saline pump, and the physiological saline may be sprayed to the wire saw 4 through the flushing pipe 513 to cool the wire saw 4. In this embodiment, the cover 53 is slidably connected to the sliding rail 52, so that the cover 53 can slide along the sliding rail 52 to below the cutting space 32, to close the bottom of the cutting space 32, and the cover 53 can collect the liquid sprayed from the flushing pipe 513. More specifically, the middle portion of the cover 53 may be recessed downward to form a recess for containing the liquid ejected from the flush tube 513.
Referring to fig. 1, as an embodiment of the in-situ rod shearing device provided by the present invention, a pipette 514 communicating with the cutting space 32 is disposed inside the sealing plate 51. The pipette 514 is communicated with the negative pressure pump, so that the blood, physiological saline and other liquids in the cutting space 32 can be sucked through the pipette 514, and the doctor can observe the situation in the cutting space 32 more conveniently.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. An in-situ rod shearing device, comprising:
A hand-held part (1);
a swing mechanism provided in the hand-held part (1) and having a reciprocating swing arm (21);
Two clamping mechanisms (3) connected to the same side of the hand-held part (1) and respectively provided with clamping heads (31) for clamping the spine fixing rod (6), wherein a cutting space (32) for allowing the spine fixing rod (6) to pass through is formed between the two clamping heads (31);
the wire saw (4) is arranged in the cutting space (32), and two ends of the wire saw are respectively connected with the reciprocating swing arms (21) and are used for encircling the periphery of the spine fixing rod (6); and
And the sealing mechanism (5) is connected with the handheld part (1) and is used for sealing the cutting space (32).
2. The in-situ rod shearing machine as set forth in claim 1 wherein said oscillating mechanism includes:
a rotation unit (22) which is arranged in the hand-held part (1); and
The eccentric wheel (23) is arranged on the rotating shaft of the rotating unit (22);
The middle part of the reciprocating swing arm (21) is hinged with the handheld part (1), two ends of the reciprocating swing arm are respectively connected with two ends of the wire saw (4), a sleeve hole (24) is formed in one end of the reciprocating swing arm (21), and the eccentric wheel (23) is located in the sleeve hole (24) and is in sliding butt with the inner wall of the sleeve hole (24).
3. The in situ rod shearing machine as set forth in claim 2 wherein: the end of the wire saw (4) is detachably connected with the end of the reciprocating swing arm (21).
4. An in situ rod cutter according to claim 1, wherein the clamping mechanism (3) comprises:
an extension rod (33), one end of which is connected with the hand-held part (1);
two clamping arms (34) arranged on the other end of the extension rod (33) to form the clamping head (31); and
The folding pipe (35) is sleeved outside the extension rod (33), one end of the folding pipe is in threaded connection with the extension rod (33), a folding surface (36) used for being sleeved on the periphery of the two clamping arms (34) is arranged on the inner wall of the other end of the folding pipe, the folding surface (36) is a conical surface, and the outer side surface of the clamping arms (34) is in sliding fit with the folding surface (36).
5. The in-situ rod shearing machine as claimed in claim 1, wherein said sealing mechanism (5) comprises:
The two sealing plates (51) are respectively connected with the handheld part (1) and are respectively arranged at two sides of the cutting space (32) in the axial direction of the spine fixing rod (6), and a sliding rail (52) arranged around the bottom of the cutting space (32) is arranged on the inner side surface of each sealing plate (51); and
And the sealing cover (53) is connected with the two sliding rails (52) in a sliding manner and is used for sealing the bottom of the cutting space (32).
6. The in-situ rod shearing machine as set forth in claim 5 wherein: the sealing plate (51) is provided with a via hole (511), a gap (512) is formed on one radial side of the via hole (511), and the gap (512) is used for enabling the spine fixing rod (6) to enter the via hole (511) along the gap (512).
7. The in-situ rod shearing machine as set forth in claim 6 wherein: the sliding rail (52) comprises two concentric arc sections which are respectively positioned at two sides of the notch (512), and the sealing plate (51) is an arc plate and is used for sliding back and forth between the two arc sections.
8. An in situ rod shearing machine as claimed in any one of claims 5 to 7 wherein: the hand-held part (1) is provided with a push button (11), and a push rod (12) used for pushing the sealing cover (53) to slide along the sliding rail (52) is connected between the push button (11) and the side edge of the sealing cover (53).
9. An in situ rod shearing machine as claimed in any one of claims 5 to 7 wherein: a flushing pipe (513) with the spraying direction aligned with the wire saw (4) is arranged on the inner side of the sealing plate (51).
10. An in situ rod shearing machine as claimed in any one of claims 5 to 7 wherein: a pipette (514) communicated with the cutting space (32) is arranged on the inner side of the sealing plate (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355582.8A CN110051419B (en) | 2019-04-29 | 2019-04-29 | In-situ rod shearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355582.8A CN110051419B (en) | 2019-04-29 | 2019-04-29 | In-situ rod shearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110051419A CN110051419A (en) | 2019-07-26 |
| CN110051419B true CN110051419B (en) | 2024-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910355582.8A Active CN110051419B (en) | 2019-04-29 | 2019-04-29 | In-situ rod shearing device |
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| Country | Link |
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| CN (1) | CN110051419B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065784A (en) * | 2008-02-12 | 2011-05-18 | 华沙整形外科股份有限公司 | Pedicle mounted devices for spinal deformity correction |
| CN205626017U (en) * | 2016-03-09 | 2016-10-12 | 中国人民解放军成都军区总医院 | Thoracoscope rib coping saw guide location suit |
| CN106890023A (en) * | 2017-03-29 | 2017-06-27 | 中国人民解放军第四军医大学 | It is a kind of to be suitable to the spinal bone screw pitman extractor of small otch |
| CN210447181U (en) * | 2019-04-29 | 2020-05-05 | 河北瑞鹤医疗器械有限公司 | In-situ rod shearing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8906012B2 (en) * | 2010-06-30 | 2014-12-09 | Medtronic Advanced Energy Llc | Electrosurgical devices with wire electrode |
| US8337532B1 (en) * | 2011-12-08 | 2012-12-25 | Spine Wave, Inc. | Methods for percutaneously extending an existing spinal construct |
-
2019
- 2019-04-29 CN CN201910355582.8A patent/CN110051419B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065784A (en) * | 2008-02-12 | 2011-05-18 | 华沙整形外科股份有限公司 | Pedicle mounted devices for spinal deformity correction |
| CN205626017U (en) * | 2016-03-09 | 2016-10-12 | 中国人民解放军成都军区总医院 | Thoracoscope rib coping saw guide location suit |
| CN106890023A (en) * | 2017-03-29 | 2017-06-27 | 中国人民解放军第四军医大学 | It is a kind of to be suitable to the spinal bone screw pitman extractor of small otch |
| CN210447181U (en) * | 2019-04-29 | 2020-05-05 | 河北瑞鹤医疗器械有限公司 | In-situ rod shearing device |
Non-Patent Citations (2)
| Title |
|---|
| 脊柱侧弯手术治疗进展;马俊红等;医学与哲学(临床决策论坛版);第32卷(第11期);第51-53页 * |
| 马俊红等.脊柱侧弯手术治疗进展.医学与哲学(临床决策论坛版).2011,第32卷(第11期),第51-53页. * |
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| Publication number | Publication date |
|---|---|
| CN110051419A (en) | 2019-07-26 |
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