KR200335364Y1 - Surgical Handpiece equipped with couplings for suction and saline solution - Google Patents

Abstract

The present invention is intended to present a medical handpiece used for removing facial contour correction, bone tumor, and protrusion, and is interlocked with the driving means 23 for generating a driving force outside the handpiece 20 and the driving means 23. Located inside the handpiece mechanism for converting the rotational movement to a linear reciprocating motion-power transmission shaft (19), inclined ball joint (13), crank shaft (12), crank mount (11)-and, Accessory connection adapter (10) is connected to the straight reciprocating movement of the mechanism portion to the surgical line or saw, and bone fragments discharge passage connected to the suction connector (1) by suction in the adapter (10) during bone cutting ( 4) and a saline supply connection pipe (2) coaxially connected with the suction connector (1) to prevent heat generation of the string and saw during bone cutting, and saline solution to be performed in the state that saline is supplied Supply passage (3), Including a valve (5) for controlling the saline supply to the saline supply connection pipe (2), the suction connector and the saline supply connection on the coaxial, characterized in that the continuous bone cutting can be made through a minimal incision A medical handpiece having a tube.

Description

Medical handpiece equipped with couplings for suction and saline solution}

The present invention relates to a medical handpiece used to remove facial contouring, bone tumors, and protrusions, and more specifically, is coupled with a surgical string or a saw for cutting bones, and the rotational movement of the motor is linearly reciprocated inside the body. A medical handpiece provided coaxially with a mechanism part for converting motion and a suction connector and a saline supply connector for sucking bone fragments generated during bone cutting.

Conventional methods used for conventional contour correction include a method of cutting bone using a bone cutting saw and a method of grinding bone using a string. An important consideration in facial contour surgery is that a large amount of bone must be ground continuously in a short time to minimize incisions, bleeding, swelling and nerve damage, and muscles and periosteal masses must be discharged along with the bone. In the case of using a manual saw or string, the cutting amount is large, but the speed is slow, which increases the doctor's fatigue and reduces the concentration of the surgery. When using electric or pneumatic handpieces, the cutting speed is high, but the friction heat from cutting the bone causes the bone pieces to press-solidify on the saw or string. In this case, it is difficult to cut a large amount of bone continuously because the bone fragments are rubbed on the bone while being stuck on the cutting edge, and there is an inconvenience of cleaning the blade once every few seconds. In addition, there is a risk that burns or deformation of the soft tissues around the incision are caused by heat from the cutting surface. In order to improve this, the existing handpiece used a method of supplying saline through the inside of the rod (rod of rasp) for bone cutting, and suctioning the bone fragments cut with saline from the outside of the row. However, since the method of suctioning in an open space is more difficult to suck the bone fragments pressed on the cutting edge than the method of sucking the bone fragments cut into a narrow space inside the string under the same sound pressure, the suction efficiency is also lowered. .

The present invention combines a saline supply connector and a suction connector coaxially with handpieces such as surgical saws and strings for the purpose of contour correction and bone cutting such as mandibular reduction or cheekbone reduction. . Inserted into a handpiece that gives a straight reciprocating motion, an accessory such as a surgical band or a saw with an internal hollow that is small to cut or cut bone tissue by inserting it into a smaller incision hole than a conventional surgery. A protector may be additionally coupled to the accessory, and the protector serves to supply saline while securing a movement space of the accessory and preventing damage to soft tissues around the incision. The handpiece has a coarse bone discharge channel and a saline supply passage on the coaxial, and a saline solution is supplied through a saline supply passage connected to an external saline unit to prevent the exothermic action of the accessory during bone cutting. Do not allow this coagulation crimp. The cut bone powder is sucked into the accessory stand and discharged to the external suction unit through the bone fragment discharge passage, thereby allowing continuous cutting through a minimal incision in a short time.

1 is a block diagram of a medical handpiece according to the present invention

Figure 2a is a view showing the combination of the accessory connection adapter and accessories

Figure 2b combination of accessory locknut, accessory, accessory connection adapter

3A Protector Front View

3B right side view of protector

Figure 3c shows the protector connecting projection of the handpiece

4A is an assembly diagram of a silicone connector, a suction connector, a saline supply connector, a valve, and a valve mount constituting the valve part

4b and 4c show the locked and open states of the valves controlling the saline feed, respectively.

5A and 5B coupling diagrams of power transmission shafts and power transmission joints

Figure 6a shows the coupling of the crankshaft, inclined ball joint, power transmission shaft case, power transmission shaft and linear reciprocating motion

6b and 6c show the combined shape of the crankshaft and the crankmount;

Fig. 7A Assembly view of the inclined shaft 36, the thrust bearing 14, the inclined ball joint 13, the radial bearing 16c, and the flange bearing 35 constituting the inclined ball joint portion.

Fig. 7C An assembly view of the power transmission shaft 19, the thrust bearing 14, the radial bearing 16b, the spacer 34, and the power transmission shaft case 18 constituting the power transmission shaft portion.

* Explanation of Major Codes

1. Suction connector 2. Saline supply connector 3. Saline supply passage

4. Bone piece discharge passage 5. Valve 6. Silicone connector 7. Handpiece connection protrusion

8. Rubber corrugated pipe 9a. Teflon side hole 9b. Valve mount side hole

10. Accessory connection adapter 11. Crankmount 12. Crankshaft

13. Inclined ball joint 14. Thrust bearing 15. Power transmission joint

16a, 16b, 16c. Radial Bearings 17. Linear Bearings

18. Power transmission shaft case 19. Power transmission shaft 20. Handpiece

21. Protector 22. Flexible cable 23. Driving means 24. Bearing shaft

25. Shaft lock nut 26. Teflon ring 27. Valve mount 28. Washer

29. Accessory (string, saw) 30. Accessory connection 31. Accessory connection adapter projection

32.Silicone connector adapter 33.Accessory lock nut 34.Spacer

35. Flange Bearing 36. Inclined Shaft 37. Ball

The basic configuration of the handpiece according to the present invention is as follows.

A motor is installed in the external drive means 23 and power is supplied to the handpiece 20 through the flexible cable 22. The inside of the handpiece is a mechanism part for converting the rotational movement of the motor into a linear reciprocating movement based on the rubber pleated pipe-power transmission shaft (19), inclined ball joint (13), crank shaft (12), crank mount (11)- It is divided into the rear portion and the front portion of the accessory connecting adapter portion 10 is connected to the mechanism portion and transmits the linear reciprocating motion of the mechanism portion to the surgical string or saw. The accessory connection adapter (10) has a bone piece discharge passage (4) is connected to the suction connector (1) by the silicone connection pipe (6) of the elastic material, between the accessory connection adapter 10 and the crank mount (11) A rubber pleated pipe (8) is fitted therein, and a saline supply passage (3), a valve (5) for controlling the saline supply, a suction connection pipe (1), a saline supply connection pipe (2), a protector connecting projection (7), And a power transmission joint 15.

When the present invention by the configuration described in detail by the accompanying drawings as follows.

1 is a view showing the basic configuration of a medical handpiece according to the present invention, the mechanism portion and the accessory connection adapter 10 and the saline supply for converting the rotational movement of the motor into a linear reciprocating movement with the rubber pleated pipe (8) in between Divided into passages (3). At this time, the rubber pleated pipe (8) has a watertight function to prevent the saline solution supplied to the saline supply passage (3) by the saline supply connecting pipe (2) during the bone cutting to prevent the inflow into the handpiece, and the linear reciprocating motion To cope with the movement. The crankshaft 12 connected to the inclined ball joint 13 moves by about 3 mm in a linear reciprocating motion, and the accessory connecting adapter 10 connected to the crankshaft also moves together, so that the bone piece suction through the bone fragment discharge passage 4 inside the adapter is moved. In order to connect the suction connector (1) and the accessory connection adapter 10 to the silicone connector (6) of the elastic material.

FIG. 2A is a view showing a shape in which an accessory connecting adapter 10 and an accessory 29 such as a string or a saw are combined. The accessory connecting adapter 10 transmits a straight reciprocating motion received from the crankshaft 12 to the accessory 29. It plays a role. One end of the accessory connection adapter 10 is formed into a male screw shape, and then the accessory 10 is inserted and then fixed with an accessory lock nut 33, and the other end is formed into a female screw shape to be coupled to the male screw of the crankshaft 12. The inside is formed with a hollow for suction serves as the bone fragment discharge passage (4), there is a silicone connector adapter 32 protruding in the middle of the adapter is the silicone connector adapter 32 and the silicone connector (6) is connected to the bone piece suction. The silicone connector 6 is connected to the suction connector 1 at one end thereof and the other end is connected to the silicone connector adapter 32 to flexibly cope with linear reciprocation, while cutting the bone while cutting bone. The excess saline is sucked from the inside of the accessories and serves to send to the suction connector (1).

Figure 2b is a coupling diagram of the accessory lock nut 33, the accessory 29, the accessory connection adapter 10, one end of the accessory connection adapter 10 is formed with a projection 31, accessories such as strings or saws It is coupled to the groove of the connecting portion 30, and fixed on the accessory lock nut 33 thereon. Due to the projection 31, the direction of the blade to the handpiece body when connecting the string is 180 °, the direction of the saw blade is directed to 90 ° when connecting the saw, the doctor is comfortable while ensuring maximum visibility when cutting bone You will be able to operate in posture.

3A shows the protector 21 connected to the handpiece, and FIGS. 3B and 3C show the connection groove 7 of the protector 21 and the connection protrusion 7 of the handpiece, respectively. When the accessory 29 is connected to the accessory connection adapter 10 inside the handpiece and the protector is coupled to the handpiece, the accessory 29 located inside the protector 21 is soft tissue around the incision during bone cutting. The movement space of the accessory 29 can be secured while preventing the damage. In addition, the saline solution may be supplied to the cutting part by allowing the saline solution to flow into a gap excluding the space occupied by the accessory 29 in the protector 21. A connecting groove is provided at the end of the protector 21, and a protruding end 7 for connection is provided at the front outer wall of the body of the handpiece 20 in four directions. This prevents the protector 21 from coming off the main body when cutting the bone.

Figure 4a shows the organic configuration of the silicone connection pipe 6, the suction connection pipe (1), the saline supply connection pipe (2), the valve (5), the valve mount 27 constituting the valve portion, Figure 4b And 4c show the locked and opened state of the valve 5 which is responsible for the supply and control of the saline solution. The saline solution is supplied or blocked by the valve (5) coupled with the saline supply connecting pipe (2) flows into the saline supply passage (3), and through the protector 21 to the rasp or saw. The saline solution reduces the friction between bones and accessories during bone cutting, resulting in less heat generation, and smoothing of the bone pieces by cutting them into the saline solution. Done. The inside of the valve (5) is a Teflon ring (26) for watertightness with the sliding bearing, and the saline solution is provided on one side of the valve (5) and the side of the Teflon ring (26) to which the saline supply connection pipe (2) is connected. The hole 9a which can flow is penetrated. Two holes 9b in the valve mount 27 are located on the horizontal line. When the valve 5 is turned 90 ° or 270 ° perpendicular to the handpiece 20 so that the holes 9a and 9b are in contact with each other. The teflon side hole 9a and the valve mount side hole 9b are aligned so that the saline solution is supplied to the saline supply passage 3 through the hole, and the valve is turned by 90 ° again so that the holes do not contact each other. ), The saline solution is stopped.

As described above, the accessory connection adapter 10, the saline supply passage 3, the valve 5, and the like at the front of the corrugated pipe 8 have been described.

When external power is supplied to the handpiece 20 through the flexible cable 22, the inclined ball joint 13 and the crankshaft 12 convert the rotational motion of the motor into a linear reciprocating motion, and the crankshaft 12 Four radial bearings (16a) and two linear bearings (17) coupled to the crank mount (11) to hold the crankshaft (12) to smooth the linear reciprocating motion, and reduces heat generation.

5A and 5B illustrate an embodiment in which the power transmission shaft 19 inside the handpiece and the power transmission joint 15 of the flexible cable are coupled to the handpiece 20 and the flexible cable 22. In order to easily connect the power transmission shaft 19 and the power transmission joint 15, the two connecting portions are cut at an appropriate angle to form an inclined surface. In any direction along the inclined surface is engaged with each other so that the parallel surface of the handpiece power transmission shaft 19 is fitted into the groove of the power transmission joint 15 on the cable side.

Figure 6a shows the coupling of the crankshaft 12, the inclined ball joint 13, the power transmission shaft case 18, the power transmission shaft 19 constituting the linear reciprocating conversion mechanism portion, each component is as follows It has the same connection structure as The head portion of the power transmission shaft 19 is inclined inclined and the inclined shaft 36 penetrating the inclined ball joint 13 is connected to the inclined surface of the head portion. A protruding ball 37 is formed on the side of the inclined ball joint 13 and a hole is formed in one end of the crankshaft 12. When the ball 37 of the inclined ball joint is inserted into this hole and fixed, The inclined ball joint 13 and the crankshaft 12 are connected.

The inclined ball joint 13 and the crankshaft 12 is connected to the power transmission shaft 19 for the rotational movement to perform a linear reciprocating motion as follows. When the power is supplied, the motor installed in the external drive means 23 rotates and its power is transmitted through the flexible cable 22, so that the power transmission shaft 19 rotates. When the power transmission shaft 19 rotates as shown in the lower figure of FIG. 6A, the inclined shaft 27 connected to the head rotates in the same direction, and the inclined ball joint 13 moves forward along the inclined surface.

In addition, the crank shaft 12 connected to the ball 37 of the inclined ball joint is partially transmitted to the tilting motion of the inclined ball joint 13 and the rotational movement of the inclined shaft 36. As shown in FIGS. 6B and 6C, four radial bearings 16a and two linear bearings 17 are attached to the crankmount 11 supporting the crankshaft 12 such that the crankshaft 12 only has a linear motion. ) So that the crankshaft 12 is coupled while passing between the bearings. In this case, when the inclined ball joint 13 is tilted forward, the position of the ball 37 is also moved forward, so that the crank shaft 12 is linearly moved by a distance equal to the width of the tilting motion of the inclined ball joint 13. . The linear bearing 17 is located inside the cylindrical crank mount 11 to secure the linear reciprocating movement path of the crank shaft 12 while holding the force in the right direction of the crank shaft 12, radial bearing (16a) Is located on the outside of the crank mount 11 to prevent the rotation of the crankshaft 12 and the resulting departure to ensure a straight reciprocating motion path to enable a smooth movement, reducing friction to reduce heat generation.

Meanwhile, when the power transmission shaft 19 is rotated again as shown in the upper figure of FIG. 6A, the inclined shaft 27 rotates, the inclined ball joint 13 tilts backward, and the ball 37 is in its original position. Returning to crankshaft (12) is a linear movement backwards, and one straight reciprocating motion is performed.

Fig. 7A is a view showing the assembling diagram of the inclined shaft 36, the thrust bearing 14, the inclined ball joint 13, the radial bearing 16c, and the flange bearing 35 constituting the inclined ball joint. A radial bearing 16c and a flange bearing 35 are installed inside the ball joint 13 to smoothly rotate the inclined shaft 36. In addition, thrust bearings 14 are provided at both ends of the radial bearing 16c and the flange bearing 35, respectively, to distribute the load in the axial direction during the straight reciprocating motion to smoothly transmit power to withstand high speed rotation. do.

FIG. 7B is a view showing the assembly of the power transmission shaft 19, the thrust bearing 14, the radial bearing 16b, the spacer 34, and the power transmission shaft case 18 constituting the power transmission shaft. Spacer 34 is provided inside the cylindrical power transmission shaft case 18 so that two radial bearings 16b for smoothly rotating the power transmission shaft may be provided before and after the spacer 34. Prepare. In addition, the power transmission shaft 19 received the power of the motor rotating at a speed of 12000 ~ 18000rpm has a thrust bearing 14 to withstand the load in the axial direction, reducing friction and wear, for this purpose, the power transmission shaft By counting the inside of the case 19 to provide the thrust bearing 14 installation space is installed so as to be located before and after the radial bearing (16b). The power transmission shaft 19 is coupled to the power transmission shaft case 18 while penetrating the thrust bearing 14 and the radial bearing 16b, and the shaft behind the power transmission shaft case 18 so that the parts are not disassembled. Secure with lock nut (25).

Four thrust bearings 14 installed on the front and rear of the inclined ball joint 13 and the count boring portion of the power transmission shaft case 19 are intended to protrude from the inclined shaft 36 and the power transmission shaft 19 in the axial direction. To hold the force and the pushing force for a continuous and powerful cutting.

In the above, but limited to the preferred embodiment according to the present invention, the present invention can be variously changed or modified, the true scope of the present invention will be determined by the technical spirit described in the claims.

When cutting a large amount of bone, such as facial contour surgery, conventional medical handpieces simply provide power to surgical accessories (strings or saws) or suction the cut bone fragments from the outside of the surgical strings. By supplying saline from the outside of string or saw accessories, it reduces the friction between bone and accessories when cutting bone, and reduces heat, and cuts the bone pieces so that they do not get caught on saline or saw to smooth the cutting.

In addition, by suctioning through the internal hollow accessories, even if suctioned at the same sound pressure as compared to when suctioned to the outside, the suction efficiency is increased, reducing the operation time and efficient cutting is possible.

Claims (9)

Drive means 23 for generating a driving force to the outside of the handpiece 20, and a mechanism unit for interlocking with the drive means 23 and located inside the handpiece to convert rotational movement into a linear reciprocating motion-power transmission shaft 19 ), The inclined ball joint (13), the crankshaft (12), the crank mount (11)-and connected with the mechanism portion and the accessory connection adapter (10) for transmitting the linear reciprocating movement of the mechanism portion to the surgical file or saw When the bone cutting, the accessory connection adapter (10) is sucked in the bone piece discharge passage (4) connected to the suction connector (1), and the saline solution supply pipe connected coaxially with the suction connector (1) ( 2) to prevent the heat generation of the string and saw during bone cutting, and to control the saline supply passage to the saline supply passage (3) and the saline supply connecting pipe (2) to perform bone cutting in the state that the saline is supplied Coaxial suction with valve 5 A medical hand piece provided with a supply connector and brine gyeolgwan The protruding silicone connector adapter (32) of claim 1, wherein one end of the accessory connector (10) is male-threaded to connect the accessory (29), and the middle part is connected to the silicone connector (6). ) And the other end is formed in the form of a female screw so as to be connected to the crankshaft 12, and the inside has a suction connector and a saline supply connector on the coaxial, characterized in that there is a hollow for suction Handpiece According to claim 1, When the saline solution is supplied to the rubber connection pipe (8) which can cope with the movement of the watertight and linear reciprocating movement so that the saline solution does not flow into the mechanism portion connected to the other end of the accessory connecting adapter 10 10) and a medical handpiece having a suction connector and a saline supply connector coaxially sandwiched between the crankmount 11 3. Coaxiality according to claim 1 or 2, characterized in that the projection (31) is formed at one end of the accessory connection adapter (10) so as to orient the accessory (9) mounted on the handpiece. Medical handpiece with suction connector and saline supply connector According to claim 1 or 2, when connecting the silicone connector adapter 32 and the suction connector (1) protruding in the middle of the accessory connecting adapter 10, the accessory connecting adapter (10) due to the straight reciprocating motion Medical handpiece provided with a suction connector and a saline supply connector on the coaxial, characterized in that the connector (6) of the elastic material to cope with the movement of the) to suck the bone fragments discharged during bone cutting According to claim 1, wherein the suction connection pipe (1), the saline supply connection pipe (2) and the valve mount 27 has one or more holes inside the valve (27) coupled to each other can supply or block the saline solution Medical handpiece with suction connector and saline supply connector on the coaxial The method of claim 1, wherein when combined with the protector (21), forming a protruding end (7) for connection to the front outer wall of the handpiece (20) and forming a groove for connection to the protector (21) when bone cutting Medical handpiece having a suction connector and a saline supply connector on the coaxial, characterized in that the protector 21 does not fall out of the handpiece body The crankshaft of claim 1, wherein the crankshaft 12 supports the linear reciprocating motion, secures a movement path, and reduces friction to reduce heat generation. 11) a medical handpiece having a suction connector and a saline supply connector on the coaxial shaft, characterized in that the crank mount 11 and the crankshaft 12 are coupled to each other. The thrust bearing 14 is disposed on the front and rear of the inclined ball joint 13 and the internal count boring portion of the power transmission shaft case 18 to distribute power in the axial direction during bone cutting to transmit power transmission. Medical handpiece with a suction connector and a saline supply connector coaxially characterized by smooth and continuous bone cutting.