CN215651413U - Medical plane cutter device - Google Patents

Abstract

The utility model provides a medical plane cutter device, which belongs to the technical field of medical instruments and comprises a cutter head, a sleeve, a joint and a display device, wherein the tail end of the sleeve is connected with the joint, the cutter head penetrates through hollow structures of the joint and the sleeve and then is arranged at the top end of the sleeve, meanwhile, the cutter head can axially move and rotate in the hollow structure of the sleeve, and the display device is used for judging whether the advancing direction of a plane cutter in the working process is correct or not. The pressure sensor can sense pressure signals with different sizes, and the indicating lamp can prompt a medical operator whether to touch a part needing to be avoided or not after the pressure signals are converted and calculated by the singlechip; when reaching the cutting or grinding position, medical staff can combine the accurate cutting of arthroscope, even in the condition of arthroscope blind area or unfavorable observation, still accessible pressure sensor passes through the pilot lamp with the contact site and transmits for the art person, does benefit to medical staff and judges the internal conditions, operates smoothly.

Description

Medical plane cutter device

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a medical plane cutter device.

Background

The medical planing system is a tool frequently used in minimally invasive endoscopic surgery, and is mainly used for removing pathological changes or redundant soft tissues or trimming the outline of bones in the surgery of removing internal or external tissues such as ears, noses, throats, cervical bones, joints and the like by a planing tool.

In the current operation, whether the planer tool reachs the cutting position smoothly, main discrimination is that the position of observing the planer tool head through the endoscope realizes, because the endoscope has certain limitation, can not cover all scenes of using, like narrow and small space, the endoscope dead angle, accurate cutting etc. operates under the endoscope, often is unfavorable for observing, can appear the excision inaccurate or not thorough, operation process inefficiency, the wound is big and bleed much, postoperative recovery cycle extension, also increased the treatment cost when increasing patient's misery.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a medical planning tool device that can help medical staff to determine the internal situation even in a blind area of an endoscope or in a situation where observation is not performed, so as to perform an operation smoothly.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows: medical planer tool device, including tool bit, sleeve, joint and display device, telescopic tail end with articulate, the tool bit passes joint and telescopic hollow structure then sets up telescopic top, simultaneously the tool bit can carry out axial motion and rotation in the telescopic hollow structure, display device is used for judging whether the direction of advance in the planer tool course is correct.

Furthermore, an operation opening used for the tool bit to enter and exit is formed in the top end of the sleeve, and a protective bottom of a circular arc-shaped structure extends towards the back face of the operation opening.

Further, the display device comprises a pressure sensor and a single chip microcomputer, the pressure sensor is attached to the outer side wall of the sleeve and close to the protective bottom, or the pressure sensor is arranged at the head of the cutter head, the single chip microcomputer is installed inside the joint, and the single chip microcomputer is electrically connected with the pressure sensor through a lead; the pressure sensor is a gauge pressure sensor which adopts a thin film flexible pressure sensor and can be bent or folded.

Further, the pressure sensor is provided with an insulating material, and the strain gauge can be wrapped in the pressure sensor.

Furthermore, the single chip microcomputer is ATTINY85, comprises a digital-to-analog converter, an arithmetic unit and a controller, can convert a pressure change value generated by the pressure sensor into a voltage change, and further obtains different results through logical operation.

Further, the outer coating of the wire is provided with an insulating layer.

Further, display device still includes pilot lamp and power, the pilot lamp respectively with power and singlechip electric connection, the pilot lamp includes green pilot lamp and red pilot lamp, green pilot lamp and red pilot lamp respectively according to the logical operation result of singlechip shows the state of lighting or closing, the power is button cell.

Further, the tool bit includes cutting tool bit and grinding tool bit, the afterbody of tool bit can connect power main shaft, can high-speed rotation after the tool bit circular telegram, realize grinding or cutting.

Compared with the prior art, the medical plane blade device has the following advantages: when the plane cutter enters an incision, if the plane cutter contacts soft tissues or bones, the pressure sensor can sense pressure signals with different sizes, and after the pressure signals are converted and calculated by the singlechip, the indicating lamp can prompt a medical operator whether to touch a part needing to be avoided; when reaching cutting or grinding position, medical staff can combine the arthroscope, and accurate cutting still can pass through pressure sensor, passes through the pilot lamp with the contact position and transmits for the art person even in the condition of arthroscope blind area or unfavorable observation, does benefit to medical staff and judges the inside condition, operates smoothly.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural view of a medical planing device according to an embodiment of the present invention;

FIG. 2 is a rear perspective view of FIG. 1;

fig. 3 is a schematic structural diagram of a display device according to an embodiment of the utility model;

FIG. 4 is a schematic structural view of a sleeve according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a-a in fig. 4.

Description of reference numerals:

1. a cutter head; 2. a sleeve; 3. a joint; 4. a display device;

21. an operation port; 22. a protective bottom;

41. a pressure sensor; 42. a wire; 43. a green indicator light; 44. a red indicator light; 45. a single chip microcomputer; 46. a power source.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 5, the present invention is a medical plane-cutter device, which comprises a cutter head 1, a sleeve 2, a joint 3 and a display device 4, wherein the tail end of the sleeve 2 is fixedly connected with the joint 3, the cutter head 1 passes through the hollow structures of the joint 3 and the sleeve 2 and then is arranged at the top end of the sleeve 2, meanwhile, the cutter head 1 can axially move and rotate in the hollow structure of the sleeve 2, and the sleeve 2 contains the cutter head 1 in the hollow part inside, so that when the plane-cutter device passes through a surgical incision or the cutter head 1 works, the purpose of protecting surrounding tissues is achieved, meanwhile, the vibration of the cutter head 1 during working can be reduced, and the cutting efficiency is improved. The utility model discloses a cutting tool, including tool bit 1, grinding tool bit 1, tool bit 1 is the mainstream tool bit 1 on the market, divide into cutting tool bit 1 and grinding tool bit 1 according to practical use, the head and the soft tissue or the skeleton direct contact of tool bit 1, its afterbody connection power main shaft, tool bit 1 can rotate at a high speed after the circular telegram, realizes grinding or cutting. The display device 4 is used for judging whether the advancing direction of the planing tool in the working process is correct or not. In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, and the specific meaning of the terms in the present invention may be understood by those skilled in the art by a specific situation.

The top end of the sleeve 2 is provided with an operation opening 21 used for the tool bit 1 to go in and out, a protection bottom 22 with an arc-shaped structure extends from the operation opening 21 to the back surface of the operation opening, and the existence of the protection bottom 22 can prevent surrounding tissues from being damaged when the sleeve 2 passes through an operation incision.

The display device 4 comprises a pressure sensor 41 and a single chip microcomputer 45, wherein the pressure sensor 41 is attached to the outer side wall of the sleeve 2 at a position close to the protective bottom 22, or the pressure sensor 41 is arranged at the head position of the cutter head 1. The single chip microcomputer 45 is installed inside the joint 3, and the single chip microcomputer 45 is electrically connected with the pressure sensor 41 through a lead 42; display device 4 still includes pilot lamp and power 46, the pilot lamp respectively with power 46 and singlechip 45 electric connection, the pilot lamp includes green pilot lamp 43 and red pilot lamp 44, green pilot lamp 43 and red pilot lamp 44 respectively according to singlechip 45's logical operation result presents the state of lighting or closing, power 46 is button cell, can provide power for sensor circuit. The pressure sensor 41 is a thin film flexible pressure sensor 41, is a gauge pressure sensor, and can be bent or folded, when the planer tool device is inserted into the area around the operation position, the pressure sensor 41 contacts soft tissue, cartilage or cortical bone, and because the hardness difference between the soft tissue and the surface of the bone is large, the pressure sensor 41 can generate obvious pressure change when contacting, and then different logical operation results are obtained after the operation of the singlechip 45, and the different states of the indicator light on the display device 4 are presented.

The pressure sensor 41 is provided with an insulating material, and can wrap the strain gauge therein, so that the body fluid is not in direct contact with the circuit, and the interference on the test result is avoided.

The single chip microcomputer 45 is ATTINY85, comprises a digital-to-analog converter, an arithmetic unit and a controller, and can convert a pressure change value generated by the pressure sensor 41 into a voltage change and further obtain different results through logical operation.

The outer coating of the wire 42 is provided with an insulating layer. Since the wire 42 is particularly thin, it is only necessary to apply an insulating layer, and the thickness is almost negligible.

In the actual working process, when a planer tool needs to be inserted into an operation, the planer tool device enters from a channel of an operation incision, if a pressure sensor 41 touches hard tissues in the process, the contact stress is increased to a large value, a strain signal is transmitted into a single chip microcomputer 45 through a lead 42, and a red indicator lamp 44 is lightened after the single chip microcomputer 45 performs logic operation; if the pressure sensor 41 touches soft tissues, the contact stress is increased to a small value, a strain signal is transmitted into the singlechip 45 through the lead 42, and the green indicator lamp 43 is lightened after the singlechip 45 carries out logic operation; when the planer tool does not work or passes through a bone tunnel, if the pressure sensor 41 cannot directly contact soft tissue or hard tissue, the pressure sensor 41 does not generate or only generates little contact stress, a strain signal is transmitted into the singlechip 45 through the lead 42, and after the logical operation is carried out through the singlechip 45, the indicator light is in a closed state. When the plane cutter enters the bone channel and reaches the working position, the medical staff can judge whether the advancing direction is correct or not by combining the color of the indicating lamp, and can also judge which part is to be cut or ground, so that the wrong cutting is avoided. Due to the sensitivity of the pressure sensor 41, when the observation angle is poor or the tissue is cut accurately, the defect of subjective judgment of an operator can be made up. After the cutting is finished, in the process of taking out the planer tool, whether other tissues are pulled or not can be observed through the indicator lamp.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. Medical planer tool device, its characterized in that: including tool bit (1), sleeve (2), joint (3) and display device (4), the tail end of sleeve (2) with connect (3) and connect, tool bit (1) passes the hollow structure who connects (3) and sleeve (2) then sets up the top of sleeve (2), simultaneously tool bit (1) can carry out axial motion and rotation in the hollow structure of sleeve (2), display device (4) are arranged in judging whether the direction of advance in the planer tool working process is correct.

2. The medical planing device of claim 1, wherein: the top end of the sleeve (2) is provided with an operation opening (21) for the tool bit (1) to go in and out, and a protective bottom (22) with an arc-shaped structure extends to the back side along the operation opening (21).

3. The medical planing device of claim 2, wherein: the display device (4) comprises a pressure sensor (41) and a single chip microcomputer (45), the pressure sensor (41) is attached to the position, close to the protective bottom (22), on the outer side wall of the sleeve (2), or the pressure sensor (41) is arranged at the position of the head of the cutter head (1), the single chip microcomputer (45) is installed inside the joint (3), and the single chip microcomputer (45) is electrically connected with the pressure sensor (41) through a lead (42); the pressure sensor (41) adopts a thin film flexible pressure sensor (41), and is a gauge pressure sensor which can be bent or folded.

4. The medical planing device as defined in claim 3, wherein: the pressure sensor (41) is provided with an insulating material, and can wrap the strain gauge therein.

5. The medical planing device as defined in claim 3, wherein: the single chip microcomputer (45) is ATTINY85 in model, comprises a digital-to-analog converter, an arithmetic unit and a controller, can convert a pressure change value generated by the pressure sensor (41) into a voltage change, and further obtains different results through logical operation.

6. The medical planing device as defined in claim 3, wherein: the outer coating of the wire (42) is provided with an insulating layer.

7. The medical planing device as defined in claim 3, wherein: the display device (4) further comprises an indicator light and a power source (46), the indicator light is respectively electrically connected with the power source (46) and the single chip microcomputer (45), the indicator light comprises a green indicator light (43) and a red indicator light (44), the green indicator light (43) and the red indicator light (44) respectively present a turned-on state or a turned-off state according to a logic operation result of the single chip microcomputer (45), and the power source (46) is a button cell.

8. The medical planing device of claim 1, wherein: the tool bit (1) comprises a cutting tool bit (1) and a grinding tool bit (1), the tail of the tool bit (1) can be connected with a power spindle, and the tool bit (1) can rotate at a high speed after being electrified to realize grinding or cutting.

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