CN113384324A - Deflectable planing tool bit - Google Patents
Deflectable planing tool bit Download PDFInfo
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- CN113384324A CN113384324A CN202110741668.1A CN202110741668A CN113384324A CN 113384324 A CN113384324 A CN 113384324A CN 202110741668 A CN202110741668 A CN 202110741668A CN 113384324 A CN113384324 A CN 113384324A
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- 238000005520 cutting process Methods 0.000 claims abstract description 73
- 238000005452 bending Methods 0.000 claims abstract description 6
- 230000000994 depressogenic effect Effects 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 34
- 239000002356 single layer Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
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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
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
- A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
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- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a deflectable planing tool bit which comprises an inner tool and an outer tool, wherein the outer tool comprises an outer tool tube consisting of a first edge part and a first rod part, the first rod part comprises an outer layer tube and an inner layer tube, and a straight groove and a plurality of annular cutting grooves are formed in the far end parts of the outer layer tube and the inner layer tube; the inner cutter comprises an inner cutter holder and an inner cutter tube, and the inner cutter tube consists of a second blade part and a second rod part; be equipped with many closed loop cutting grooves at second pole portion distal end, closed loop cutting groove has divided into the multistage with second pole portion, and second pole portion is close to the cutting terminal surface that closed loop cutting groove and forms a plurality of protruding portions, forms the depressed part between the adjacent protruding portion, and same closed loop cutting groove both sides protruding portion forms the freely movable joint with the depressed part block. The planing tool bit provided by the invention can be fixed at any angle while the angle is continuously adjustable through the arrangement of the outer cutter with a double-layer structure, and the bending angle is controllable; the inner cutter tube adopts annular whole-section cutting, so that the annular buckling is realized, each section has larger freedom degree, and larger torsion is transmitted.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a deflectable planing tool bit.
Background
The planing tool bit is a medical instrument widely applied, the angle of the head of the planing tool bit is fixed in the market at the present stage, and a plurality of products with different fixed angles are required to be equipped for one operation. In order to provide a planing tool head with a changeable tool head angle, the following studies have been carried out by those skilled in the art:
patent US 2004/0127927a1 provides a cutting head, the head of which is in a fixed angle in the original state, and the angle is changed by pressing focal tissues, namely, the angle changing mode needs to overcome the rigidity of a tube of the cutting head, and the pressed tissues can cause secondary injury during operation. Meanwhile, the angle change of the product is small, the direction of the cutting edge of the single product is kept fixed relative to the deflection circular arc, the angle coverage area of the cutting part at the head of the single product is small, and products with different fixed angles need to be equipped to cover continuous angles (such as-90 degrees to +90 degrees).
The head of the cutter head disclosed in patent US 2006/0264927a1 is of fixed angle, and discloses an outer tube structure, which is of helical cut type or unilateral cut type for achieving the fixed angle structure. This patent has the following drawbacks: first, the head of the cutting head can be shifted through a continuous angle (e.g., -90 °) by the solution of the patent, but cannot be fixed at any of the continuous angles. Secondly, the planing tool bit principle is that the outer cutter window is fixed, the inner cutter window rotates in a reciprocating mode, and the outer cutter window and the inner cutter window are opened and closed continuously and relatively, so that the purpose of cutting tissues is achieved. The spiral cutting type inner knife can provide certain torsion in the spiral direction, but torsion loss exists when the inner knife rotates in the reverse spiral direction, the performance of a product can be weakened due to unidirectional torsion bearing of spiral cutting, and a patient can be injured during an operation. Thirdly, the scheme of cutting off the axial single side and reserving the other direction is not rigid per se, and under a certain angle, the rotation of the inner cutter has a centripetal component force pointing to a curved circle
As shown in FIG. 1, the centripetal force is related to the rotational speed, which causes the head angle to be unstable when the inner knife is rotated at a high speed, and may injure the patient during the operation.
Patent US20070049958a1 discloses an inner tube and an outer tube, the inner tube being either a unidirectional helical cut or a bidirectional helical cut, which does not disclose whether the outer tube is continuously adjustable in angle within a certain range. The single-phase spiral cutting can only bear the torque force in a single direction; the bidirectional spiral cutting is composed of two layers of reverse spiral cutting pipes, a single layer of the bidirectional spiral cutting pipe can only bear torsion in a single direction, and the upper limit of unidirectional torsional resistance is determined by the upper limit of the unidirectional torsional resistance of the single layer, so that the torsional resistance limit is not high. In addition, the double-walled tube of this patent reduces the internal channel diameter, reducing the efficiency of withdrawing the cut tissue.
In summary, it is an important research direction to provide a planing tool bit, the head of which can be changed in a continuous deflection angle and can be fixed and maintained at any angle in the continuously changed angle, so as to achieve rigid support, and the inner pipe can smoothly transmit torque in two directions only by a single-layer pipe.
Disclosure of Invention
The shortcomings of the prior art of the present invention provide a deflectable planing tool bit having a nose that can be varied through a continuous deflection angle, and an outer cutting edge that varies between the inside and outside of the deflection arc, while being capable of being held at any of the continuously varying angles for rigid support.
The invention adopts the following technical scheme for solving the technical problems:
a deflectable planing tool bit comprises an outer tool and an inner tool, wherein the outer tool comprises an outer tool tube consisting of a first edge part and a first rod part, the first rod part comprises an outer layer tube and an inner layer tube, and the far ends of the outer layer tube and the inner layer tube are fixedly connected with the near end of the first edge part;
the inner cutter comprises an inner cutter holder and an inner cutter tube, and the inner cutter tube consists of a second blade part and a second rod part; second pole portion distal end portion is equipped with N closed loop cutting groove, closed loop cutting groove will second pole portion has been divided into N +1 section, second pole portion is close to 2N cutting end faces in closed loop cutting groove form a plurality of protruding portions, and is adjacent form the depressed part between the protruding portion, same closed loop cutting groove both sides protruding portion with the depressed part block forms the freely movable joint, N more than or equal to 2.
Preferably, at least one section of straight groove is axially arranged on one side of the distal end parts of the outer layer pipe and the inner layer pipe, a plurality of annular cutting grooves are arranged on the other side of the distal end parts of the outer layer pipe and the inner layer pipe, and two ends of each annular cutting groove are close to the straight grooves and are not communicated with the straight grooves; the straight grooves of the outer layer pipe and the straight grooves of the inner layer pipe are distributed oppositely along the central axis of the outer cutter pipe; controlling the bend angle of the distal portion of the outer blade tube by controlling the proximal axial displacement of the proximal end of the outer tube relative to the proximal end of the inner tube.
Preferably, the closed-loop cutting grooves are distributed in a centrosymmetric manner relative to the central axis of the second rod part.
Preferably, the circumferential arc length of the end of the protruding portion connected to the cutting end face is larger than that of the end of the protruding portion far away from the cutting end face.
Preferably, N-1 connecting ring pieces are formed between two adjacent closed-loop cutting grooves, four protruding parts are respectively arranged at two ends of each connecting ring piece, and the protruding part at one end is arranged to rotate 45 degrees relative to the protruding part at the other end.
Preferably, the proximal end of the inner blade holder is connected with a planing power system.
Preferably, the shape of the annular cutting groove is in a staggered distribution of a trapezoid and an inverted trapezoid.
Preferably, the outer cutter further comprises an outer cutter seat and a deflection seat, and the outer cutter seat is used for connecting a planing handle; the deflection seat is used for adjusting the axial displacement of the near end of the outer layer tube.
Preferably, the proximal end of the first blade and the distal ends of the outer and inner tubes are integrally welded by laser.
Preferably, the straight flute of the outer layer tube is located in the middle of the knife edge side of the first blade, and the straight flute of the inner layer tube is located in the middle of the knife edge side deviating from the first blade.
Preferably, the deflection angle of the first blade is-90 ° to +90 °.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
(1) compared with the planing tool bit with a fixed angle and an angle which is not continuously adjustable in the prior art, the deflectable planing tool bit provided by the invention can be fixed at any angle while the angle is continuously adjustable through the arrangement of the outer tool tubes with double-layer structures, the bending angle is controllable, and the rigid support can be achieved at any angle.
(2) The invention realizes that the knife edge of a single product faces the inner side or the outer side of the deflection arc by deflecting the first edge part within the angle range of-90 degrees to +90 degrees, and two functions of one set of mechanism are simultaneously realized.
(3) The bending section of the invention is a natural arc without abrupt direction change, so that the transmission of the inner layer can be smoother, the efficiency of the tissue which is pumped back and cut is ensured, and the internal suction channel is kept, and simultaneously, the invention provides larger torque force and achieves higher rotating speed.
(4) The single-layer inner cutter tube is cut in an annular whole section, the wall surface of the inner cutter tube is cut through in the direction of aligning the circle center of the section during cutting, a plurality of complete ring sections are formed after the protruding parts and the recessed parts are cut in a staggered mode, the protruding parts and the recessed parts of adjacent ring sections are clamped, and movable joints are formed at the clamped positions; when having realized that the ring is detained mutually, not breaking away from, every section all has great degree of freedom for under the outer cutter tube deflection state, interior cutter tube can be in the same direction as smooth high-speed transmission, transmits great torsion, reaches higher cutting speed, can not reduce the diameter of inside suction channel simultaneously, improves the suction efficiency of the tissue that cuts down, reduces the hidden danger of performing the operation.
(5) Compared with the prior art of single-layer pipe spiral cutting or double-layer pipe positive and negative spiral cutting, the double-layer pipe spiral cutting device has the advantages that the first rod part and the second rod part are cut in an annular mode, the uncut part is reserved between the rings and is complete in whole section, and compared with instability of a spiral cutting pipe on a circular surface structure, the double-layer pipe spiral cutting device has obvious advantages in stability.
(6) In the invention, only a single planing tool bit is needed for a single operation, so that the resource consumption is reduced, and the operation cost is also reduced; in addition, the operation time for replacing different cutters to reposition focus parts can be reduced, the single operation time is shortened, the operation efficiency is improved, and the pain of patients is reduced; meanwhile, the time of the operation is shortened, so that doctors can complete more operations within the same working time, the hospital benefit is improved, and more patients are benefited.
Drawings
FIG. 1 shows centripetal force component of the present invention
A schematic diagram;
FIG. 2 is a schematic view of a deflectable planing tool head in accordance with the present invention;
FIG. 3 is a schematic view of the outer blade of the present invention;
FIG. 4 is a schematic view of the inner blade of the present invention;
FIG. 5 is a schematic view of the distal end configuration of an outer tube of the present invention;
FIG. 6 is a schematic view of the distal end of the inner tube of the present invention;
FIG. 7 is a schematic view of the distal end of the inner blade of the present invention;
FIG. 8 is a view showing the deflection of the knife edge in the angle range of-90 ° - +90 °;
FIG. 9 is a schematic view of the connecting ring of the present invention;
FIG. 10 is a left side view of the connecting ring of the present invention;
the reference numerals denote the description:
the outer cutter 1, the outer cutter holder 11, the deflection holder 12, the outer cutter tube 13, the first edge part 131, the first rod part 132, the outer layer tube 1321, the inner layer tube 1322, the straight groove 1323, the annular cutting groove 1324, the inner cutter 2, the inner cutter holder 21, the inner cutter tube 22, the second edge part 221, the second rod part 222, the closed-loop cutting groove 223, the connecting ring piece 224, the protruding part 2241 and the recessed part 2242.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the accompanying drawings. In the following description, the proximal end refers to the end close to the operator, and the distal end refers to the end away from the operator.
Referring to fig. 2-4, the present invention provides a deflectable planing tool head, which includes an inner blade 2 and an outer blade 1; the outer cutter 1 comprises an outer cutter seat 11, a deflector seat 12 and an outer cutter tube 13, and the inner cutter 2 comprises an inner cutter seat 21 and an inner cutter tube 22.
Specifically, the outer cutter holder 11 is used for connecting a planing handle, so that the deflectable planing cutter head is fixed with the planing handle; the outer cutter holder 11 is used for connecting a planing handle; the eccentric seat 12 is used for adjusting the axial displacement of the proximal end of the outer layer tube 1321, and the proximal end of the outer layer tube 1321 is driven to axially move by rotating the eccentric seat 12, so that the first blade 131 deflects.
Specifically, as shown in fig. 3, the outer blade tube 13 is composed of a first blade 131 and a first shaft 132, the first shaft 132 includes an outer tube 1321 and an inner tube 1322, and distal ends of the outer tube 1321 and the inner tube 1322 are integrally welded to a proximal end of the first blade 131 by laser welding. At the distal end of the outer tube 1321 and inner tube 1322, at least one segment of straight slot 1323 is laser cut axially on one side and a plurality of annular cut slots 1324 are laser cut on the other side.
Further, the annular cutting slot 1324 is in a shape of a trapezoid and an inverted trapezoid in a staggered distribution, as in fig. 5-6, so that the outer cutter 1 is limited from being excessively bent and extended; the two ends of the annular cutting slot 1324 are close to the straight slot 1323 and are not communicated with the straight slot 1323, i.e. two sides of the straight slot 1323 are provided with uncut parts. The straight slot 1323 of the outer layer tube 1321 and the straight slot 1323 of the inner layer tube are distributed oppositely along the central axis of the outer cutter tube 13; further, the straight slot 1323 of the outer layer tube 1321 is positioned right in the middle of the knife edge side of the first blade 131, and the straight slot 1323 of the inner layer tube 1322 is positioned right in the middle of the knife edge side away from the first blade 131, as in fig. 5 to 6, and by this design, when the first blade 131 deflects, the knife edge always faces the inside or outside of the deflection arc, as in fig. 8.
In specific application, the specific steps for realizing the deflection of the first blade part 131 are as follows:
s1: controlling the proximal end of the outer layer tube 1321 to move axially and distally relative to the proximal end of the inner layer tube 1322, bending the distal end part of the outer layer tube 1321 provided with a straight groove 1323 and an annular cutting groove 1324, and deflecting the first blade part 131 towards the direction of the knife edge until the deflection angle is +90 degrees;
s2: controlling the proximal end of the outer tube 1321 to move axially and proximally relative to the proximal end of the inner tube 1322, and straightening the distal end of the outer tube 1321;
s3: the proximal end of the outer tube 1321 is controlled to continue to move axially and proximally, and the first blade 131 deflects away from the knife edge until the deflection angle is-90 °, and the step S2 is repeated.
The deflectable planing tool bit is fixed at any angle through the arrangement of the outer cutter with a double-layer structure, the angle is continuously adjustable, the bending angle is controllable, rigid support can be achieved at any angle, the first blade part 131 deflects within the angle range of-90 degrees to +90 degrees, the edge of a single product faces the inner side and the outer side of a deflection arc, and two functions of one set of mechanism are achieved simultaneously.
Specifically, as shown in fig. 4, the inner knife 2 includes an inner knife holder 21 and an inner knife tube 22, and the inner knife tube 22 is composed of a second blade part 221 and a second rod part 222; the distal end of the second rod part 222 is provided with N closed-loop cutting grooves 223, which divide the second rod part 222 into N +1 sections, and the middle N-1 section is a connecting ring part, as shown in fig. 7 and 9; due to the fact that the closed-loop cutting groove 223 is cut, the protruding portion 2241 and the recessed portion 2242 are cut on the end face, close to the end face of the connecting ring piece 224, of the first section and the end face, close to the N +1 th section, of the connecting ring piece, and the protruding portion 2241 and the recessed portion 2242 on the two sides of the closed-loop cutting groove 223 are clamped to form a movable joint.
In the invention, the inner cutter tube 22 is cut by adopting the path shown in fig. 9 to form a closed-loop cutting groove 223 and a connecting ring piece 224, the wall surface of the inner cutter tube 22 is cut through in the direction of keeping aligning the circle center of the section in the cutting process, the closed-loop cutting groove 223 consists of a plurality of cutting seams which align the circle center of the section and have the rotation angle of 0-360 degrees, and the cutting seams are vertical to the cutting seams at intervals of 90 degrees and are parallel to the cutting seams at intervals of 180 degrees in any state. Because the inner knife pipe 22 is a pipe fitting and has a certain wall thickness, the movable joints enable axial and radial single-side limit to be formed between the two connecting ring pieces 224, the movable joints formed by the two connecting ring pieces 224 are distributed in central symmetry, and the plurality of movable joints form axial and radial limit in different directions, so that the ring-ring buckling and separation prevention of the connecting ring pieces are realized, and the connecting ring pieces can be bent at a certain angle.
The inner knife tube 22 formed by the method has larger freedom degree for each connecting ring piece, so that the inner knife tube 22 can smoothly transmit at high speed in the deflection state of the outer knife tube 13, transmit larger torsion force, achieve higher cutting speed, simultaneously can not reduce the diameter of an internal suction channel, improve the suction efficiency of cut tissues and reduce the hidden trouble of operation.
In a particular embodiment, as in fig. 9, the maximum circumferential arc length of the end of the protrusion 2241 connecting the cutting end face is greater than the maximum circumferential arc length of the end of the protrusion 2241 remote from the cutting end face; more preferably, as in fig. 9, the protrusion 2241 comprises a head and a neck that are in the transition of a circular arc, the circumferential arc length of the head being greater than the circumferential arc length of the neck, and the recess 2242 being adapted to the shape of the protrusion 2241.
In a preferred embodiment, as shown in fig. 9-10, four protrusions 2241 are provided at both ends of one connecting ring member, respectively, and the protrusions 2241 at one end are arranged to be rotated by 45 ° with respect to the other end, and all the connecting ring members are arranged in parallel in the axial direction with the same structure.
Specifically, the inner cutter base 21 is used for connecting with a planing power system, and the planing power system drives the inner cutter 2 to rotate in a unidirectional mode or rotate in a reciprocating mode through the inner cutter base 21.
Compared with the prior art of single-layer pipe spiral cutting or double-layer pipe positive and negative spiral cutting, the double-layer pipe spiral cutting device has the advantages that the first rod part and the second rod part are cut in an annular mode, the uncut part is reserved between the rings and is complete in whole section, and compared with instability of a spiral cutting pipe on a circular surface structure, the double-layer pipe spiral cutting device has obvious advantages in stability.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (11)
1. A deflectable planing tool head, comprising an outer blade (1) and an inner blade (2), wherein:
the outer cutter (1) comprises an outer cutter tube (13) consisting of a first blade part (131) and a first rod part (132), the first rod part (132) comprises an outer layer tube (1321) and an inner layer tube (1322), and the far ends of the outer layer tube (1321) and the inner layer tube (1322) are fixedly connected with the near end of the first blade part (131);
the inner cutter (2) comprises an inner cutter holder (21) and an inner cutter tube (22), and the inner cutter tube (22) consists of a second blade part (221) and a second rod part (222); second pole portion (222) distal end is equipped with N closed loop cutting groove (223), closed loop cutting groove (223) will second pole portion (222) has been divided into N +1 section, second pole portion (222) are close to a plurality of protruding portions (2241) of 2N cutting terminal surface formation of closed loop cutting groove (223), adjacent form between protruding portion (2241) depressed part (2242), same closed loop cutting groove (223) both sides protruding portion (2241) with depressed part (2242) block forms the freely movable joint, N more than or equal to 2.
2. The deflectable shaving head according to claim 1, wherein at least one segment of straight grooves (1323) is axially formed at one side of the distal end portion of the outer tube (1321) and the inner tube (1322), and a plurality of annular cut grooves (1324) are formed at the other side of the distal end portion of the outer tube and the inner tube, and both ends of the annular cut grooves (1324) are close to the straight grooves (1323) and do not communicate with the straight grooves (1323); the straight groove (1323) of the outer layer pipe (1321) and the straight groove (1323) of the inner layer pipe are distributed oppositely along the central axis of the outer cutter pipe (13); controlling the bending angle of the distal end portion of the outer blade tube (13) by controlling the proximal axial displacement of the proximal end of the outer tube (1321) relative to the proximal end of the inner tube (1322).
3. The deflectable shaving head of claim 1, wherein the closed-loop cutting flutes (223) are distributed in a central symmetry with respect to a central axis of the second shaft portion (222).
4. Deflectable planing tool head according to claim 1, wherein the maximum circumferential arc length of the end of the projection (2241) connecting the cutting end face is greater than the maximum circumferential arc length of the end of the projection (2241) remote from the cutting end face.
5. Deflectable planing tool head according to claim 1, wherein N-1 connecting rings (224) are formed between two adjacent closed cutting grooves (223), wherein each of the two ends of each connecting ring is provided with four protrusions (2241), and wherein the protrusions (2241) at one end are arranged rotated by 45 ° with respect to the other end.
6. The deflectable planing tool head according to claim 1, wherein a proximal end of said inner seat (21) is connected to a planing power system.
7. The deflectable shaving head of claim 1, wherein the annular cutting slot (1324) is shaped in a staggered pattern of trapezoidal and inverted trapezoidal shapes.
8. The deflectable planing tool head according to claim 1, wherein said outer blade (1) further comprises an outer blade seat (11) and a deflection seat (12), said outer blade seat (11) being adapted for connection to a planing handle; the eccentric seat (12) is used for adjusting the axial displacement of the proximal end of the outer layer tube (1321).
9. The deflectable shaving head of claim 1, wherein the proximal end of the first blade (131) and the distal ends of the outer tube (1321) and the inner tube (1322) are integrally formed by laser welding.
10. The deflectable shaving head according to claim 1, wherein the straight slot (1323) of the outer tube (1321) is located at a midpoint of a side of the edge of the first blade (131), and the straight slot (1323) of the inner tube (1322) is located at a midpoint of a side of the edge facing away from the first blade (131).
11. The deflectable planing tool according to claim 1, wherein the deflection angle of the first edge portion (131) is between-90 ° and +90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110741668.1A CN113384324A (en) | 2021-06-30 | 2021-06-30 | Deflectable planing tool bit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110741668.1A CN113384324A (en) | 2021-06-30 | 2021-06-30 | Deflectable planing tool bit |
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| CN113384324A true CN113384324A (en) | 2021-09-14 |
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| CN202110741668.1A Pending CN113384324A (en) | 2021-06-30 | 2021-06-30 | Deflectable planing tool bit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115530931A (en) * | 2022-11-29 | 2022-12-30 | 成都美创医疗科技股份有限公司 | Outer cutter assembly and planer tool with adjustable outer cutter windowing angle |
| CN117297719A (en) * | 2023-09-05 | 2023-12-29 | 邦士医疗科技股份有限公司 | Planing handle capable of adjusting working direction of cutter head |
| CN117562630A (en) * | 2024-01-16 | 2024-02-20 | 江苏美凤力医疗科技有限公司 | Arterial lesion valve cutting device with supporting and positioning functions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448388A (en) * | 2009-05-29 | 2012-05-09 | 阿斯卡拉波股份有限公司 | Surgical instrument |
| CN109431572A (en) * | 2018-11-20 | 2019-03-08 | 宁波华科润生物科技有限公司 | A kind of medical deflectable bistrique |
| CN216257312U (en) * | 2021-06-30 | 2022-04-12 | 宁波华科润生物科技有限公司 | Deflectable planing tool bit |
-
2021
- 2021-06-30 CN CN202110741668.1A patent/CN113384324A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448388A (en) * | 2009-05-29 | 2012-05-09 | 阿斯卡拉波股份有限公司 | Surgical instrument |
| CN109431572A (en) * | 2018-11-20 | 2019-03-08 | 宁波华科润生物科技有限公司 | A kind of medical deflectable bistrique |
| CN216257312U (en) * | 2021-06-30 | 2022-04-12 | 宁波华科润生物科技有限公司 | Deflectable planing tool bit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115530931A (en) * | 2022-11-29 | 2022-12-30 | 成都美创医疗科技股份有限公司 | Outer cutter assembly and planer tool with adjustable outer cutter windowing angle |
| CN115530931B (en) * | 2022-11-29 | 2023-08-18 | 成都美创医疗科技股份有限公司 | Outer knife assembly and planing tool with adjustable outer knife windowing angle |
| CN117297719A (en) * | 2023-09-05 | 2023-12-29 | 邦士医疗科技股份有限公司 | Planing handle capable of adjusting working direction of cutter head |
| CN117297719B (en) * | 2023-09-05 | 2024-04-02 | 邦士医疗科技股份有限公司 | Planing handle capable of adjusting working direction of cutter head |
| CN117562630A (en) * | 2024-01-16 | 2024-02-20 | 江苏美凤力医疗科技有限公司 | Arterial lesion valve cutting device with supporting and positioning functions |
| CN117562630B (en) * | 2024-01-16 | 2024-04-02 | 江苏美凤力医疗科技有限公司 | Arterial lesion valve cutting device with supporting and positioning functions |
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