CN112741687A - Laser scalpel with replaceable scalpel head - Google Patents
Laser scalpel with replaceable scalpel head Download PDFInfo
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- CN112741687A CN112741687A CN201911035974.2A CN201911035974A CN112741687A CN 112741687 A CN112741687 A CN 112741687A CN 201911035974 A CN201911035974 A CN 201911035974A CN 112741687 A CN112741687 A CN 112741687A
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- Prior art keywords
- laser
- tool bit
- head
- scalpel
- connecting part
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
Abstract
The invention discloses a laser scalpel with a replaceable scalpel head, which comprises: the cutter head, the cutter body and the connecting part; the cutter head is of a hollow structure with a closed head and an open tail, and light guide fibers are filled in the cutter head; a tool bit fixing channel penetrating through the connecting part is arranged on a central shaft of the connecting part, the tool bit is fixed in the tool bit fixing channel, the tail part of the tool bit is flush with one end of the tool bit fixing channel, and the head part of the tool bit extends out of the connecting part from the tool bit fixing channel; the tail part of the connecting part is provided with a clamping part; the clamping part comprises a first clamping block; the head part of the knife body is provided with a cavity; the clamping part is clamped in the cavity; the inner wall of the cavity is provided with internal threads; the outer wall of the first fixture block is provided with an external thread; a laser light source and a coupling mirror are arranged in the knife body, the laser light source outputs a laser beam, and the coupling mirror is positioned on a transmission light path of the laser beam and refracts and converges the laser beam; the optical fiber at the tail end of the cutter head is positioned at the focus of the coupling mirror. The invention can realize the rapid replacement of the cutter head of the laser scalpel in the operation process.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a laser scalpel with a replaceable scalpel head.
Background
The progress of surgery is closely related to the development of scalpels. The traditional scalpel is easy to cut off blood vessels in soft tissues in the using process, so that wound bleeding is caused. Therefore, hemostasis operation is required to be continuously performed in the operation. Thereby prolonging the operation time and easily causing many complications after the operation. In order to achieve effective hemostasis of wounds while the scalpel is cutting tissue, laser scalpels, such devices, have recently begun to appear in the medical device field. In the laser scalpel in the prior art, laser is transmitted by using an optical fiber, and the laser irradiates human tissues to enable moisture in the human tissues to quickly absorb laser energy and convert the laser energy into heat. Thereby vaporizing the tissue for cutting. However, the service life of the cutter head of the laser scalpel is correspondingly shortened by the large amount of heat energy generated by the laser in the working process. The existing laser scalpel is of an integrated structure, once a scalpel head of the laser scalpel is scrapped in the operation process, a whole set of equipment needs to be replaced temporarily, and long time is spent, so that the operation is interrupted and the operation rhythm of a doctor is interrupted. The overall safety of the operation is reduced. Therefore, how to develop a laser scalpel with a replaceable scalpel head can realize the quick replacement of the scrapped scalpel head of the laser scalpel in the operation process, ensure the continuity of the operation and improve the safety guarantee of the operation, and is the direction needed to be researched by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a laser scalpel with a replaceable scalpel head, which can realize quick replacement of the scalpel head of the laser scalpel in a surgical process.
The technical scheme is as follows:
a replaceable-tip laser scalpel, comprising: the cutter head, the cutter body and the connecting part; the cutter head is of a hollow structure with a closed head and an open tail, and light guide fibers are filled in the cutter head; a tool bit fixing channel penetrating through the connecting part is arranged on a central shaft of the connecting part, the tool bit is fixed in the tool bit fixing channel, the tail part of the tool bit is flush with one end of the tool bit fixing channel, and the head part of the tool bit extends out of the connecting part from the other end of the tool bit fixing channel; the tail part of the connecting part is provided with a clamping part; the clamping part comprises a first clamping block; the head part of the knife body is provided with a cavity; the clamping part is clamped in the cavity; the inner wall of the cavity is provided with internal threads; the outer wall of the first fixture block is provided with an external thread corresponding to the internal thread; the laser knife comprises a knife body and is characterized in that a laser light source and a coupling mirror are arranged in the knife body, the laser light source is used for outputting laser beams, and the coupling mirror is located on a transmission light path of the laser beams and is used for refracting and converging the laser beams; the optical fiber at the tail end of the cutter head is positioned at the focus of the coupling mirror.
By adopting the technical scheme: through the cooperation of internal thread and first fixture block external screw thread in the cavity, the staff can realize simple dismantlement/connection between the two through with connecting portion and blade relative rotation. Meanwhile, the fixing and the protection of the cutter head are realized through the connecting part. Simultaneously, through set up optical fiber in the tool bit inside, make only need leave the space in the blade and arrange and establish laser source and coupling mirror, reduced the whole volume of blade, avoid this product heavy and light, the uncomfortable problem of doctor's gripping. And the cutter head and the connecting part are fixed into a whole, so that the modular replacement of the cutter head can be realized. Namely: in practice, when the cutter head is damaged, a worker only needs to rotate the connecting part and the cutter body along the rotation direction of the external thread in the reverse direction to separate the connecting part and the cutter head from the cutter body; the tool bit used for replacement and the connecting part are rotated along the same direction of the rotation direction of the external thread, so that the connecting part and the tool body can be fixed into a whole.
Preferably, in the above-described laser scalpel with a replaceable blade, the: the clamping part also comprises a step; the step is located between the head of the connecting portion and the first clamping block.
By adopting the technical scheme: the step is arranged to enable the connecting part to be limited in the screwing process of the connecting part in the process of being installed on the knife body. The excessive precession of the connecting part is prevented, and the phenomenon that the section of the optical fiber which is flush with the cutter tail is deformed due to extrusion and the optical fiber cannot cooperate with the laser beam refracted and converged by the coupling mirror is avoided.
More preferably, in the above-described laser scalpel with a replaceable blade, the: the corresponding position of cavity inner wall at the second fixture block side has seted up the recess, the blade outside is equipped with the screw hole that communicates to the recess, be equipped with movable slider in the recess, the spiro union has the screw in the screw hole.
By adopting the technical scheme: the utility model discloses a laser beam that sets up slider adjusting connection portion and blade's counterpoint, specifically, drives the slider through adjusting screw to counterpoint to tool bit tail end and coupling mirror focus is finely tuned, with the center pin of guaranteeing optical fiber and coupling mirror refraction and assemble overlaps.
More preferably, in the above-described laser scalpel with a replaceable blade, the: the cutter head is also internally provided with a laser absorption medium; the laser absorption medium is filled between the optical fiber and the inner wall of the cutter head.
By adopting the technical scheme: the laser absorbing medium is additionally arranged, the laser energy transmitted in the optical fiber is absorbed and converted into heat, the heat is transmitted to the cutter head, the high-temperature cutter head is used for surgical cutting, and the problem that the cutting depth on different tissues of a human body is inconsistent in the process of directly cutting by using laser is solved.
More preferably, in the replaceable-blade laser scalpel, the: the laser scalpel is characterized in that the scalpel body is also provided with a cooling system, and the cooling system is connected with the laser light source and used for adjusting the output power of the laser light source.
By adopting the technical scheme: in the operation process, the output power of the laser light source is optimized, the temperature of the cutter head of the laser scalpel is controlled within a reasonable range, and the cutter head is prevented from being damaged in an accelerated mode due to overhigh temperature. Thereby slowing down the replacement frequency of the cutter head of the laser scalpel and further improving the continuity and the safety of the operation.
Still more preferably, in the above-described laser scalpel with a replaceable blade, the: the laser absorption medium adopts graphite powder.
Compared with the prior art, the laser scalpel head can be rapidly switched in a nervous operation process.
Drawings
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
FIG. 1 is a schematic structural view of example 1,
FIG. 2 is a schematic view of the internal structure of the cutter head of FIG. 1;
the correspondence between each reference numeral and the part name is as follows:
1. a cutter head; 2. a blade body; 3. a connecting portion; 4. a movable slider; 5. a screw; 11. an optical fiber; 12. a laser-absorbing medium; 21. a cavity; 22. a laser light source; 23. a coupling mirror; 24. a cooling system; 31. a tool bit fixing channel; 32. a fastening part; 33. a first clamping block; 34. a step; 211. and (4) a groove.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following will be further described with reference to various embodiments.
As shown in fig. 1-2:
a replaceable-tip laser scalpel, comprising: the knife head 1, the knife body 2 and the connecting part 3;
the tool bit 1 is of a hollow structure with a closed head and an open tail, and an optical fiber 11 and a laser absorption medium 12 are arranged in the tool bit 1; the laser absorption medium 12 is filled between the optical fiber 11 and the inner wall of the tool bit 1. In this example, graphite powder is used as the laser absorbing medium 12.
A tool bit fixing channel 31 penetrating through the connecting part 3 is arranged on the central shaft of the connecting part 3, the tool bit 1 is fixed in the tool bit fixing channel 31, the tail part of the tool bit 1 is flush with one end of the tool bit fixing channel 31, and the head part of the tool bit 1 extends out of the connecting part 3 through the tool bit fixing channel 31; the tail part of the connecting part 3 is provided with a clamping part 32; the engaging portion 32 includes a first latch 33 and a step 34; the head part of the knife body 2 is provided with a cavity 21; the clamping part 32 is clamped in the cavity 21; the inner wall of the cavity 21 is provided with internal threads; the outer wall of the first fixture block 33 is provided with an external thread corresponding to the internal thread; the step 34 is located between the head of the connecting portion 3 and the first latch 33.
The knife body 2 is internally provided with a laser light source 22, a coupling mirror 23 and a cooling system 24, wherein the laser light source 22 is used for outputting laser beams. Specifically, the method comprises the following steps: the laser source 22 includes a working substance, a pumping system, and a laser resonator. The working substance realizes population inversion through a proper energy level structure; the pumping system is used for exciting atoms in the working substance so as to maintain population inversion; the laser resonant cavity is used for amplifying laser beams and enabling the laser to have good directivity and monochromaticity. The coupling mirror 23 is located on a transmission light path of the laser beam output by the laser light source 22 and used for refracting and converging the laser beam; the optical fiber 11 at the tail end of the tool bit 1 is positioned at the focus of the coupling mirror 23. The inner wall of the cavity 21 is provided with a groove 211 at a position corresponding to the side surface of the second fixture block, a screw hole 22 communicated with the groove 211 is formed in the outer side of the cutter body 2, a movable sliding block 4 is arranged in the groove 211, and a screw 5 is screwed in the screw hole 22. The cooling system 24 is connected to the laser light source 21 and is used for adjusting the output power of the laser light source 21. Specifically, the method comprises the following steps: the cooling system 24 includes: the device comprises an interaction module, an acquisition module, a comparison module and an adjustment module; the interaction module is used for receiving a remote control instruction of a user; the acquisition module is used for acquiring the current working temperature of the cutter head; the comparison module is used for comparing the acquired data of the acquisition module with a preset working temperature threshold value to obtain an operation result; the adjusting module is used for reading the operation result output by the comparing module and correspondingly adjusting the average power of the laser beam output by the laser light source.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. The protection scope of the present invention is subject to the protection scope of the claims.
Claims (6)
1. A laser scalpel with a replaceable cutting head, comprising: the knife comprises a knife head (1), a knife body (2) and a connecting part (3);
the cutter head (1) is of a hollow structure with a closed head and an open tail, and optical fibers (11) are filled in the cutter head (1);
a tool bit fixing channel (31) penetrating through the connecting part (3) is arranged on a central shaft of the connecting part (3), the tool bit (1) is fixed in the tool bit fixing channel (31), the tail part of the tool bit (1) is flush with one end of the tool bit fixing channel (31), and the head part of the tool bit (1) extends out of the connecting part (3) from the other end of the tool bit fixing channel (31);
the tail part of the connecting part (3) is provided with a clamping part (32); the engaging portion (32) includes a first engaging block (33);
the head part of the knife body (2) is provided with a cavity (21); the clamping part (32) is clamped in the cavity (21); the inner wall of the cavity (21) is provided with internal threads; the outer wall of the first fixture block (33) is provided with an external thread corresponding to the internal thread;
a laser light source (22) and a coupling mirror (23) are arranged in the knife body (2), the laser light source (22) is used for outputting laser beams, and the coupling mirror (23) is located on a transmission light path of the laser beams and is used for refracting and converging the laser beams; the optical fiber (11) at the tail end of the tool bit (1) is positioned at the focus of the coupling mirror (23).
2. The replaceable-tip laser scalpel of claim 1, wherein: the engaging portion (32) further comprises a step (34); the step (34) is positioned between the head of the connecting part (3) and the first clamping block (33).
3. The replaceable-tip laser scalpel of claim 2, wherein: the novel screwdriver is characterized in that a groove (211) is formed in the corresponding position of the side face of the second clamping block on the inner wall of the cavity (21), a screw hole (22) communicated to the groove (211) is formed in the outer side of the screwdriver body (2), a movable sliding block (4) is arranged in the groove (211), and a screw (5) is screwed in the screw hole (22).
4. The replaceable-tip laser scalpel of claim 3, wherein: the cutter head (1) is also internally provided with a laser absorption medium (12); the laser absorption medium (12) is filled between the optical fiber (11) and the inner wall of the tool bit (1).
5. The replaceable-tip laser scalpel of claim 4, wherein: the knife body (2) is internally provided with a cooling system (24), and the cooling system is connected with the laser light source (22) and is used for adjusting the output power of the laser light source (22).
6. The replaceable-tip laser scalpel of claim 5, wherein: the laser absorption medium (12) adopts graphite powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911035974.2A CN112741687A (en) | 2019-10-29 | 2019-10-29 | Laser scalpel with replaceable scalpel head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911035974.2A CN112741687A (en) | 2019-10-29 | 2019-10-29 | Laser scalpel with replaceable scalpel head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112741687A true CN112741687A (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911035974.2A Pending CN112741687A (en) | 2019-10-29 | 2019-10-29 | Laser scalpel with replaceable scalpel head |
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| Country | Link |
|---|---|
| CN (1) | CN112741687A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0069351A2 (en) * | 1981-07-02 | 1983-01-12 | Sumitomo Electric Industries Limited | Hand piece for use with surgical laser knife device |
| CN102860872A (en) * | 2012-06-01 | 2013-01-09 | 首都医科大学 | Laser scalpel device |
| US20180000337A1 (en) * | 2016-06-30 | 2018-01-04 | Iridex Corporation | Handheld ophthalmic laser system with replaceable contact tips and treatment guide |
| CN208524981U (en) * | 2017-11-21 | 2019-02-22 | 遵义市第一人民医院 | A kind of scalpel for neurosurgery |
| CN209139923U (en) * | 2018-12-13 | 2019-07-23 | 东莞市领亿精密金属有限公司 | A kind of milling cutter of interchangeable bit |
-
2019
- 2019-10-29 CN CN201911035974.2A patent/CN112741687A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0069351A2 (en) * | 1981-07-02 | 1983-01-12 | Sumitomo Electric Industries Limited | Hand piece for use with surgical laser knife device |
| CN102860872A (en) * | 2012-06-01 | 2013-01-09 | 首都医科大学 | Laser scalpel device |
| US20180000337A1 (en) * | 2016-06-30 | 2018-01-04 | Iridex Corporation | Handheld ophthalmic laser system with replaceable contact tips and treatment guide |
| CN208524981U (en) * | 2017-11-21 | 2019-02-22 | 遵义市第一人民医院 | A kind of scalpel for neurosurgery |
| CN209139923U (en) * | 2018-12-13 | 2019-07-23 | 东莞市领亿精密金属有限公司 | A kind of milling cutter of interchangeable bit |
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Application publication date: 20210504 |
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