KR100347500B1 - Apparatus for harvesting cartilage - Google Patents

Abstract

The present invention relates to a cartilage collecting device, in order to collect the required amount of cartilage from cartilage tissues, such as the human body, a cutting blade (3) for cutting cartilage is formed at the edge of the tip side and the guide plate (5) Cartilage collecting tube (1) protruding, the connecting member 21 formed to extend rearward from the rear end of the cartilage collecting tube (1), and cartilage collected in the cartilage collecting tube (1) by cutting the remaining cartilage tissue It consists of a cutting member (11) for separating from the cartilage and the cartilage tube (1) to move back and forth through the guide member 23 inserted between the cartilage and the cartilage membrane to facilitate the cartilage harvesting operation. In this case, the operator can easily and safely collect cartilage.

Description

Cartilage Harvester {Apparatus for harvesting cartilage}

The present invention relates to a cartilage harvesting device, and more particularly, to a cartilage harvesting device that can easily and safely collect the required amount of cartilage from cartilage tissues, such as the human body.

In general, in the case of exoplasty performed to raise a low nose, thyroid repair performed in vocal cord paralysis, airway dilatation performed in airway stenosis, or tympanoplasty performed to improve hearing, and correction of the enlarged nasal cavity during atrophic rhinitis In this case, artificial molding materials have been mainly used until now.

However, these substances may also cause inflammation, foreign body reactions, allergic reactions or hypersensitivity reactions in vivo. In addition, although there is no carcinogenicity to humans, some cases of carcinogenesis have been reported in animal experiments.

Because of this problem, surgery may be performed using autologous tissues, and autologous tissues used in this case include bone, cartilage, dermal fat, and fascia. Among them, cartilage is mainly used because of easy manipulation, less absorption during surgery, and adhesion to beneficiary tissue as connective tissue.

However, the cartilage tissues such as the ear cartilage or septal cartilage of the cartilage tissue is limited in the amount that can be obtained small. Moreover, it takes time to manipulate these cartilage tissues into the desired shape, and because they are manipulated, the shape may not be as straight as an artificial molding material such as silicone, and may have irregular shapes on the outer part and connect the inserts. Small irregularities are likely to occur at the site.

Therefore, the cartilage tissue that can obtain a large amount compared to the open cartilage or septal cartilage is required, and such cartilage tissue is a soft bone at the end of the rib which is a long bone constituting the rib cage of the human body between the rib and the sternum There is a connecting rib cartilage.

By the way, a large amount of cartilage can be obtained from this costal cartilage, but the conventional surgery for collecting the required amount from the costal cartilage has a problem that a lot of scars remain in the chest area after the operation and the pain lasts a long time.

For example, in order to extract cartilage of a desired length from the rib cartilage conventionally, it is inevitable to cut the skin tissue surrounding the rib cartilage by the desired length of the cartilage, so that the incision is lengthened and eventually a lot of scar remains on the chest area. There was a problem.

In addition, since the cartilage harvesting operation is performed directly through the operator's hand, the operator's skill is required to collect the cartilage to a desired length and thickness.

Therefore, if the skill of the operator falls, not only the operation time is delayed, but also an unexpected medical safety accident may occur by damaging the surrounding human tissue of the cartilage during cartilage extraction. In addition, inadvertent harvesting of more cartilage than the operator may cause deformation of the rib cage.

The present invention has been made to solve the above problems, and provides a cartilage harvesting device that can easily and safely collect the required cartilage from the cartilage tissue by a predetermined amount, so that scars remain in the surgical site. Has its purpose.

In order to achieve the above object, the present invention, the cartilage harvesting pipe formed on the edge of the cutting edge cutting cartilage, cartilage harvesting pipe driving means for moving the cartilage harvesting pipe, cartilage harvesting pipe and connecting Connection member for connecting the pipe driving means, and the cutting member made of a thin wire to cut the cartilage collected in the cartilage harvesting pipe to separate from the remaining cartilage tissue.

1 is a perspective view of a cartilage harvesting apparatus according to an embodiment of the present invention.

Figure 2 is a perspective view of the cartilage harvesting tube according to the present invention.

Figure 3a is a cross-sectional view of the cartilage harvesting tube according to the present invention.

3B is a cross-sectional view taken along the line A-A of FIG. 3A.

4 is a perspective view of a guide member according to the present invention;

Figures 5a to 5d sequentially show that the cartilage harvesting operation according to the present invention.

Figure 6 is a side view showing the internal configuration of the cartilage harvesting apparatus according to another embodiment of the present invention.

7 is a plan view of the cartilage harvesting apparatus shown in FIG.

FIG. 8 is a partially enlarged view of the means for promoting cartilage cutting shown in FIG. 6; FIG.

9 is a schematic view showing the action of cartilage cutting promoting means shown in FIG.

<Description of the symbols for the main parts of the drawings>

1, 101: Cartilage Harvester

5: guide plate

11, 111: cutting member

21, 112: connecting member

23: guide member

29: air cylinder

103: groove

123: moving screw

127: casing

133: driven bevel gear

135: driving bevel gear

145: pivot member

149: cam

167: drive pulley

171: driven pulley

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing the overall configuration of the human cartilage harvesting apparatus according to the present invention, cartilage harvesting pipe (1) for collecting cartilage from the cartilage tissue and cartilage harvesting pipe (1) through the guide member 23 of FIG. There is shown a driving means to move 1) back and forth to smooth cartilage extraction.

As shown in Fig. 2, the cartilage harvesting pipe 1 has a cutting edge 3 for cutting cartilage formed at the edge of the tip side, and the top of the tip side extends forward to guide the guide plate 5. On the other hand, the projection 7 is formed in the lower rear peripheral surface of the cartilage harvesting pipe (1).

Cartilage collection pipe (1) is a thin cross-section pipe of a material having a strong wear resistance and excellent corrosion resistance. The diameter of the cartilage harvesting tube (1) can be changed according to the purpose of the plastic surgery, in order to prevent side effects such as the empyema, to determine the maximum value of the diameter after measuring the thickness of the costal cartilage using ultrasound.

On the other hand, on the outer circumferential surface of the cartilage harvesting pipe 1, the scale 1a is displayed at predetermined intervals, so that the operator can easily grasp the front and rear movement distance of the cartilage harvesting pipe 1 by the driving means.

In addition, the cutting blade (3) is preferably produced by grinding both the inside and the outside of the tip portion of the cartilage harvesting pipe (1) as shown in Figure 3a. If the cartilage harvesting pipe (1) is produced by grinding only the outside of the tip portion, the cartilage harvesting pipe (1) does not proceed smoothly when proceeding to cut the cartilage cutting edge (3) of the cartilage harvesting pipe (1) This is because it keeps getting out of the cartilage tissue.

A pair of through holes 9 are formed in the intermediate portion of the guide plate 5. It is preferable that the through hole 9 processes the rear sidewall portion of the through hole 9 in a curved shape so that the movement of the cutting member 11 to be described later will be smoothly performed as shown in FIG. 3A. .

The tip portion of the guide plate 5 is rounded, and a blade 5a is formed along the rounded portion, so that the cartilage collecting tube 1 easily enters the skin tissue when entering the incision, Cartilage collection pipe (1) to proceed smoothly.

In addition, the portion corresponding to the length from the tip to the middle of the entire length of the guide plate 5 is thicker than the portion of the remaining length, as shown in Figs. 3A and 3B. This is when the thickness of the tip side of the guide plate 5 is equal to the thin thickness of the cartilage harvesting tube 1 body, the tip of the guide plate 5 is sharp, so that the cartilage harvesting tube 1 cuts the cartilage The tip of the guide plate 5 in the process of progress rather to dig into the cartilage to prevent unwanted results and to perform a safe operation.

On the other hand, Figure 2 shows a cutting member 11 for cutting the cartilage collected in the cartilage harvesting pipe (1) to separate from the remaining cartilage tissue. The cutting member 11 is a thin wire, the cutting member 11 passes through a pair of through holes 9, the middle portion of the cutting member 11 is releasably spread over the projection (7) of the connecting tube, the cutting member 11 Both ends of the cartilage harvesting pipe (1) is placed on the upper portion of the rear outer peripheral surface.

After the cutting member 11 passes through the through hole 9, the cutting member 11 is formed on the outer peripheral surface adjacent to the tip of the cartilage collecting pipe 1, and is formed in the recess grooves 13a and 13b having a width larger than the diameter of the cutting member 11. It is desirable to be accommodated.

The cutting member 11 is seated in the jangyo groove (13a, 13b), so that when the cartilage harvesting tube (1) to collect cartilage, the cutting member (11) minimizes the area in contact with the surrounding cartilage tissue, etc. 1) move smoothly.

In addition, the fixing ring 15 is connected to both ends of the cutting member 11, the fixing ring 15 is a plurality of holes formed at predetermined intervals in the longitudinal direction on the rear outer peripheral surface of the cartilage collection pipe (1) ( The pin 19 is fixed to any one of 17).

The state in which the cutting member 11 is installed in the cartilage collecting tube 1 can be easily understood from FIG. 3A. As shown in the drawing, the cutting member 11 has a middle portion caught in the projection 7 in the state of passing through the through hole 9 of the guide plate 5, and both ends thereof are pinned through the fixing ring 15. It is fixed to the cartilage collecting pipe 1 by (19).

From the rear end of the cartilage harvesting pipe 1, as shown in Fig. 2, the connecting member 21 extends backward. The connecting member 21 of Fig. 2 can also be detachably mounted to the driving means, the rear end of which will be described later. In this way, if each member is detachable, after the operation is over, the cartilage harvesting tube (1) and the like can be removed and disinfected to maintain cleanliness.

On the other hand, Figure 4 shows the guide member 23 which is inserted between the cartilage and the cartilage during cartilage harvesting operation to separate the cartilage and cartilage, while guiding the movement of the cartilage harvesting pipe (1).

As shown, the guide member 23 is concave in the longitudinal direction to guide the slide of the cartilage harvesting pipe 1 in contact with the guide plate 5 of the cartilage harvesting pipe 1 on the lower surface thereof; 23b) is formed, and the rear part thereof is inclined upward. In the guide member 23, first and second fixing holes 25a and 25b are formed before and after respectively to fix the cartilage and the skin. At this time, the first and second fixing holes 25a and 25b each have an inner circumferential surface inclined such that a needle or the like to be described later is easily guided and penetrated.

In the cartilage harvesting device made in this way, the cartilage harvesting pipe (1) is moved forward and backward by the driving means connected via the connecting member 21, the driving means will be described in detail with reference to FIG. Same as

As shown, the drive means includes an air cylinder 29 having a piston rod 27 detachably mounted to the connecting member 21 of the cartilage collecting pipe 1, and a pneumatic hose to the air cylinder 29. A switching valve 33 which is connected via a 31 to selectively provide air pressure to the first port 29a and the second port 29b respectively formed in the piston head side chamber and the piston rod side chamber in the air cylinder 29. And the first port 29a and the second port 29b, respectively, to adjust the pneumatic pressure of the first port 29a and the second port 29b to move forward and backward movement of the cartilage collecting pipe 1. It consists of speed regulating valves 35a and 35b to adjust.

Here, the switching operation of the switching valve 33 is made by a pedal structure as shown in Figure 1, the configuration is as follows.

As shown, the switching valve 33 is installed in the base 37, the pedal 41 is rotatably installed via the pivot 39 with respect to the base 37, the lower portion of the pedal 41 A spring 43 is provided on the surface so that the lower end surface of the spring 43 is in contact with the upper surface of the switching valve 33. In front of the pedal 41, a driving rod 47 for operating the switching rod 45 for the switching operation of the switching valve 33 is provided.

Then, a cushioning member 49 is installed on the lower surface of the pedal 41 to the rear of the portion where the spring 43 is installed, so that the bottom surface of the pedal 41 directly strikes the switching valve 33 during the rotational operation. On the other hand, the end of the shock absorbing member 49 is provided with a contact lug 49a installed in a screwing manner to limit the rotation angle of the pedal 41.

Hereinafter, the operation of collecting a predetermined amount of cartilage from the human cartilage, in particular, the costal cartilage by the cartilage harvesting apparatus according to the present invention will be described in detail with reference to FIGS. 5A to 5D.

First, the ribs are selected as cartilage extraction targets, and the ultrasound and the ribs are distinguished from each other, and then the cartilage is collected.

When a predetermined costal cartilage is selected, the contour of the relevant costal cartilage is displayed on the skin, and then the incision site is determined and the skin is incised, but the incision length at this time is enough to enter the tip of the cartilage collection tube (1). do.

Then, by using a predetermined cartilage detachment mechanism (not shown), the periosteum surrounding the rib can be peeled off.

In FIG. 5A, the guide member 23 is inserted between the ribs 51 and the intercostal membrane 53 to closely contact the ribs 51 and then the first and second fixing holes of the guide members 23 with a needle or the like. The state of fixing the guide member 23 between the skin 55 and the rib cage 51 by passing through 25a and 25b is shown.

In detail, the needle 57 in the form of a conventional pin is used as the needle passing through the first fixing hole 25a, and the needle 59 in the form of a fishing needle as the needle passing through the second fixing hole 25b. ), The end of the hook 59 in the form of a fish hook is tied with a string 61, the end of the string 61 is a small piece (63) hangs.

That is, the pin-shaped needle 57 passes through the first fixing hole 25a from the top of the skin 55 so that the skin 55 is fixed to the rib cage 51 through the guide member 23. The needle 59 in the form of a fishing needle passes through the second fixing hole 25b under the cut skin 55, and then penetrates the needle 59 in the form of a fishing needle out of the skin 55 and exits the human body. Pulling the needle 59 in the form of a fish hook, the small piece 63 is caught on the inclined inner circumferential surface of the second fixing hole 25b while moving upward through the string 61, so that the skin 55 and the guide member 23 are pulled out. ) Are fixed to each other while being stitched to the string (63).

After the guide member 23 is seated between the skin 55 and the rib cartilage 51, more precisely, between the cartilage 51 and the costal cartilage 53, as shown in FIG. 5B, the cartilage collecting tube ( 1) when the guide plate 5 is inclined at an angle so as to slide along the inclined guide groove 23a at the front end of the guide member 23, the cutting blade 3 of the cartilage harvesting pipe 1 is ribbed cartilage 51 ) To dig into.

In the state in which the cutting blade 3 of the cartilage collecting pipe 1 digs the rib cartilage 51 by a predetermined depth, the cartilage collecting pipe 1 is horizontally arranged along the horizontal guide groove 23b of the guide member 23. When further moving forward, the cutting blade 3 of the cartilage harvesting pipe 1 cuts the rib cartilage 51 in the longitudinal direction.

The advance movement of the cartilage harvesting pipe (1) is continued until the cartilage (51) is cut by a predetermined length, cartilage harvesting pipe (1) in the state that the cartilage harvesting pipe (1) is moved forward as much as possible, As shown in 5c, it is temporarily stopped. At this time, the almost cut rib cartilage (51a) is in the inner hollow portion of the cartilage harvesting pipe (1) in the state that the end is still connected to the rib cartilage (51).

Hereinafter, with reference to FIG. 5D, the operation | movement which completely separates the substantially cut rib cartilage 51a from the rib cartilage 51 is demonstrated.

That is, in the state in which the cartilage collecting tube 1 is temporarily stopped, the fixing ring 15 connected to both ends of the cutting member 11 of FIG. 3 is separated from the pin 19, and then a mechanism such as a pin (not shown) Release the middle portion of the cutting member (11) hanging on the projection (7) from the projection (7).

When the fixing ring 15 is pulled in the state in which the middle portion of the cutting member 11 is released from the protrusion 7, a part of the cutting member 11 including the middle portion of the cutting member 11 is cartilage collecting tube. While moving toward the front of the cartilage harvesting tube 1 while covering the outer circumferential surface of (1), the upper portion under the guide plate 5 passes through a pair of adjacent through holes 9 of the guide plate 5 and the rest The lower portion has a snare shape that surrounds the connection portion between the ribbed cartilage 51 and the nearly cut ribbed cartilage 51a.

At this time, when the fixing ring 15 connected to both ends of the cutting member 11 is pulled further, the snare-shaped portion of the cutting member 11 starts to dig into the connecting portion. Then, when the fixing ring 15 is pulled until the middle portion of the cutting member 11 is in close contact with the guide plate 5, the almost cut ribs 51a are completely cut off from the ribs 51.

As described above, the separated cartilage comes out of the human body with the backward movement of the cartilage harvesting pipe 1 in a state accommodated inside the cartilage harvesting pipe 1. The costal cartilage is used as a cartilage piece to be used for surgery, since the cartilage collecting tube 1 is dismantled from the connecting member 21 and then extruded from the cartilage collecting tube 1.

On the other hand, the forward and backward movement of the cartilage harvesting pipe 1 is made as follows according to the operation of the pedal 41.

First, in order to move the cartilage collecting pipe 1 forward, the pedal 41 is pressed. That is, when the pedal 41 is pressed, the driving rod 47 of the pedal 41 presses the operating rod 45 of the switching valve 33 so that the compressed air from the air tank (not shown) or the like changes the switching valve 33. Inflow into the first port 29a of the air cylinder 29 through the opening of the), the piston rod 27 is advanced, and at the same time the cartilage collecting pipe (1) is also advanced. At this time, the compressed air remaining in the piston rod side chamber is discharged through the second port 29b.

Then, in order to move the cartilage harvesting pipe 1 backward, the pressed pedal 41 may be released. That is, when the foot 41 is depressed, the pedal 41 is in an initial state by the extension force of the spring 43, and the operating rod 45 of the switching valve 33 is returned to its original position. At this time, the switching valve 33 is switched so that the compressed air flows into the second port 29b of the air cylinder 29, and the compressed air flowing into the second port 29b reverses the piston rod 27. At the same time, the cartilage harvesting pipe 1 is also reversed. Here, the compressed air remaining in the piston head side chamber is discharged through the first port 29a.

On the other hand, the forward and backward moving speed of the cartilage harvesting pipe 1 is adjusted by the speed adjusting valves 35a and 35b respectively provided in the first and second ports 29a and 29b.

That is, the speed regulating valves 35a and 35b control the amount of compressed air entering and exiting the air cylinder 29 as a normal flow control valve so as to adjust the forward and backward speeds of the piston rod 27 and the cartilage collecting pipe 1. do.

On the other hand, in the present embodiment, it is described that compressed air enters and exits the air cylinder 29, but of course, a gas such as nitrogen may be used instead of the compressed air.

6 and 7 shows a cartilage harvesting apparatus according to another embodiment of the present invention.

The structure of the cartilage harvesting tube used in the present embodiment will be described with reference to FIG. As shown, the annular groove 103 is formed to be inclined with respect to the vertical section of the cartilage harvesting pipe 101 on the front inner peripheral surface 101a of the cartilage harvesting pipe 101 of the present embodiment. The groove 103 is formed with a first hole 105 drilled upward of the cartilage harvesting pipe 101. At the rear of the first hole 105, the second hole 107 located close to the first hole 105 and the third hole 109 located close to the rear end of the cartilage collecting pipe 101 are cartilage collecting pipe ( 101 is formed in a straight line in the longitudinal direction.

In this embodiment, it is preferable to use a wire rope as the cutting member 111 for cutting the cartilage. The diameter of the cutting member 111 should be smaller than the depth of the groove 103, whereby the cutting member 111 from the inner circumferential surface 101a of the cartilage harvesting pipe 101 when it is completely in contact with the bottom surface of the groove 103 Does not protrude This prevents the cartilage from interfering with the cutting member 111 when the cartilage is cut into the cartilage collecting tube 101.

The connecting member 112 of the present embodiment is detachably mounted to the rear end of the cartilage harvesting pipe 101 and has a first connecting member 115 having an extension 113 extending rearward, and the first connecting member 115. ) Is formed of a second connection member 117 having an insertion groove 117a to which the extension 113 of the slidably fits.

On both sides of the first connection member 115, the handle 121 is installed to facilitate the user to grip the device during surgery.

A plurality of stop members may be provided on the front inner surface of the insertion groove 117a of the second connection member 117 so that the second connection member 117 may be moved within a predetermined distance with respect to the first connection member 115 and stopped. 119 is installed. The stop member 119 is connected to one end of the spring 119a formed in the concave groove 117b formed on the inner surface of the insertion groove 117a, and receives an elastic force of the spring 119a and the upper portion thereof. The ball 119b protrudes outward from the inner surface. The ball 119b is fitted into any one of the fixing grooves 113a and 113b spaced apart from the outer surface of the extension 113 of the first connection member 115 by a predetermined distance.

The driving means of the present embodiment has a long moving screw 123 extending to the rear of the second connecting member 117 of the cartilage collecting pipe 101 and the screw portion 125 engaged with the moving screw 123 on the inner circumferential surface of the driving means. A screw member 131 rotatably installed on a vertical diaphragm 129 formed vertically inwardly from a casing 127 surrounding the screw 123, and on one side of the screw member 131 in the direction of the rotation axis of the movable screw 123. The driven bevel gear 133 integrally installed and surrounding the movable screw 123, the driving bevel gear 135 engaged with the driven bevel gear 133, and the driving bevel gear 135 are installed on the rotating shaft, thereby Motor 139 for transmitting the rotational force to the driven bevel gear 133 and the anti-rotation pin is projected downward from the inner surface of the casing 127 and fitted into the groove 123a formed on the upper rear peripheral surface of the movable screw 123. 141.

One of the peculiar configurations of the cartilage harvesting device of the present embodiment is a means for facilitating cutting of cartilage by alternately pulling both ends of the cutting member 111.

8 and 9, cartilage cutting facilitating means will be described.

The cartilage cutting facilitating means may include a pivot member 145 which is pivotally rotatable in the front upper portion of the casing 127 and includes fixing pins 143 connected to both ends of the cutting member 111 at both sides thereof, The pivot member 145 is a fixed end 147b whose one end is a free end 147a facing the front surface 144a of one side 144 of the pivot member 145 and the other end is fixed to the front inner side of the casing 127. A spring 147 which biases the one side portion 144 of the rear portion 144 and a rear side 144b of the one side portion 144 of the turning member 145 installed opposite to the spring 147. A cam 149 having a lobe portion 149a for pushing the one side portion 144 out of contact and turning the one side portion 144 of the pivot member 145 forward, and a cam for rotating the cam 149. Drive means.

The pivot member 145 is installed to receive the rotational force of the cam 149 according to the user's selection. 8 and 9, a button 151 having a shape extending in the same direction as the longitudinal direction of the pivot member 145 is attached to the upper end of the pivot shaft 150 of the pivot member 145. The plate-shaped stopper 153 is attached to the lower end part. An entrance 154 is formed at the front upper portion of the casing 127 so that the button 151 enters and exits the casing 127.

A support plate 155 extending downward is installed at an upper portion of the front inner side surface of the casing 127, and the first plate member 157 and the second plate member 159 spaced in parallel are supported on the support plate 155. 155 extends in a direction perpendicular to the side. The space 161 formed between the first plate member 157 and the second plate member 159 has a size sufficient to accommodate the pivot member 145. The fixed end 147b of the spring 147 is fixed to the upper portion of the support plate 155 and the spring 147 is positioned on the first plate member 157. The first plate member 157 is formed with an opening 163 having a shape larger than the area of the pivoting member 145 while having the shape of the pivoting member 145, and the opening 163 has a casing 127 as shown. ) Is formed in the axial direction. The second plate member 159 has a through hole 165 through which the pivot shaft 150 passes, and the area of the through hole 165 is smaller than that of the stopper 153.

8 illustrates a state in which the pivot member 145 is positioned at the position where the pivot member 145 can be interlocked with the cam 149. The button 151 protrudes upward from the casing 127, and the pivot member 145 is provided. Is in contact with the cam 149. When the button 151 is manipulated to match the axial direction of the casing 127 in the state shown in Fig. 8, the pivot member 145 is in a position to pass downward through the opening 163, and the button ( Pressing 151, pivoting member 145 passes through opening 163 and is received as shown by dashed lines in space 161.

That is, when the button 151 is pulled upward until the stopper 153 is caught by the second plate member 159 so that the button 151 is raised through the opening 163 by operating the button 151, the turning member 145 ) Is in a position where it can interlock with the cam 149, and when the button 151 is pressed downward to lower through the opening 163 by operating the button 151, the pivot member 145 is no longer cam 149 ) Will be in a position where it cannot receive the rotational force.

Meanwhile, as shown in FIG. 6, the cam 149 driving means includes a driving pulley 167 provided adjacent to the driving bevel gear 135 on the rotation shaft 137 of the motor 139, and the driving pulley. A belt is rotatably installed on the upper inner surface of the casing 127 at a position spaced toward the front of the casing 127 from the 167 and attached to the side of the cam 149 to receive the rotational force of the motor 139. It consists of a driven pulley 171 connected to the drive pulley 167 through (169).

Hereinafter, the cartilage harvesting operation performed by the cartilage harvesting device according to the present embodiment will be described in detail.

First, the cutting member 111 is installed in the cartilage collecting pipe 101. 6 and 7, the middle portion of the cutting member 111 is pushed into the first hole 105 and closely contacted with the recess 103 to maintain the annular shape, as shown in FIG. Cross the cutting member 111 and insert both ends of the cutting member 111 into the second hole 107. Then, both ends of the cutting member 111 are passed through the inner side of the cartilage collecting pipe 101, and then both ends are removed. 3 Pull out again through the hole (109). At this time, the pin 173 is inserted into the third hole 109 so that the cutting member 111 is temporarily fixed to the third hole 109 by the pin 173. Both ends of the cutting member 111 exited to the outside are fixed to the fixing pins 143 of the pivot member 145, respectively.

When the cutting member 111 is installed in the cartilage collecting pipe 101, the user rotates the button 151 in the axial direction of the casing 127 and pushes the button 151 downward so that the button 151 falls through the opening 163. Press 151 to cause the pivot member 145 to be in a position where it cannot receive the rotational force of the cam 149. Next, the user advances the cartilage harvesting tube 111 into the incision of the skin to collect cartilage.

Referring to the forward operation of the cartilage harvesting tube 111 in detail as follows.

The user drives the motor 139 by holding the handle 121 of the cartilage collecting device and the portion 175 where the motor 139 is installed with both hands. The rotational force of the motor 139 is transmitted in the order of the driving bevel gear 135, the driven bevel gear 133, and the moving screw 123. At this time, the moving screw 123 receives the rotational force of the driven bevel gear 133 through the screw member 131, but the rear portion of the moving screw 123 is fixed by the rotation preventing pin 141 is not rotated Not, the moving screw 123 is only a linear motion. The moving direction of the moving screw 123 depends on the rotation direction of the motor 139. As shown, the moving screw 123 when the rotating shaft of the motor 139 rotates counterclockwise (B direction in FIG. 6). Moves forward. The cartilage harvesting pipe 101 connected to the moving screw 123 via the connecting member 112 is advanced by the forward movement of the moving screw 123.

The process of collecting cartilage by the cartilage harvesting tube 101 has already been described in detail with reference to FIGS. 5A to 5C and will be omitted. Hereinafter, the operation of separating the costal cartilage in the cartilage harvesting pipe 101 according to the present embodiment from the cartilage tissue.

That is, when the forward movement of the cartilage collecting pipe 101 is finished and the cartilage collecting pipe 101 is temporarily stopped, the turning member 145 opens when the button 151 is pulled upward in the axial direction of the casing 127. Raises through 163 and is positioned at the same height as cam 149. When the button 151 is placed in the lateral direction of the casing 127 again, the pivot member 145 is placed at the position directly interlocking with the cam 149.

In this state, the pin 173 inserted into the third hole 109 is pulled out, and then the handle 121 of the first connection member 115 is grasped and fixed, and the motor 139 moves the screw 123 backward. When the motor 139 is operated to rotate in the direction of rotation (clockwise of the rotation axis of the motor 139), the moving screw 123 moves backward. At this time, the second connecting member 117 is moved backward with the moving screw 123 with respect to the fixed first connecting member 115, the ball 119b on the extension 113, the front fixing groove shown in FIG. At the position of 113a, it slides into the rear fixing groove 113b until it stops. At the same time, the drive pulley 167 installed on the rotating shaft 137 of the motor 139 transmits the rotational force to the driven pulley 171 through the belt 169, the cam 149 attached to the driven pulley 171 is It starts to rotate with the driven pulley 171.

9 shows an operating state of the pivot member 145 according to the rotational movement of the cam 149. As shown in FIG.

As shown, the pivot member 145 performs a seesaw movement in which the left and right sides rotate alternately forward or backward within a predetermined rotation angle range by the rotational movement of the cam 149. The movement of the pivot member 145 causes the movement of pushing and pulling both ends of the cutting member 111 connected to both sides of the pivot member 145 alternately. That is, the annular portion of the cutting member 111 in the groove 103 of the cartilage collecting pipe 101 performs the circumferential movement while repeatedly changing the direction along the groove 103 in the state surrounding the cartilage. However, the movement of the pivot member 145 does not help to cut the cartilage directly.

The cutting of the cartilage is performed while the user pulls the motor 139 installation portion 175 with the other hand while holding the handle 121 of the first connecting member 115 when the turning member 145 starts to operate. Happens. That is, when the casing 127 is retracted backward in the state in which the connection collecting pipe 101 is fixed at a predetermined position (holding the handle 121 by hand and maintaining a constant position), the casing 127 is pivoted. The member 145 is also retracted together so that the cutting member 111 is pulled back, whereby the cutting member 111 is separated from the groove 103 to squeeze the cartilage. At this time, the work to cut the cartilage by the seesaw movement of the pivot member 145 is further promoted.

After the cutting member 111 separates the cartilage from the cartilage tissue, the middle portion of the cutting member 111 exits the first hole 105 by a pulling force and enters the second hole 107 to enter the cartilage collecting tube 101. It will be in any position of the inner space of the).

After the cartilage collection is finished, the user pulls the cartilage collecting tube 101 from the human body, and the cartilage collecting operation is completed.

The present invention described above can be implemented in various other forms without departing from the spirit or the main features. Therefore, the above embodiments are merely examples in all respects and should not be interpreted as limiting.

According to the cartilage harvesting apparatus according to the present invention described above, during the cartilage harvesting operation, the cartilage can be easily and safely collected by a predetermined amount in a state where the skin incision is minimized.

Claims (16)

A cartilage harvesting tube having a cutting blade for cutting cartilage formed at the edge of the tip side; Cartilage harvesting pipe driving means for moving the cartilage harvesting pipe and; A connection member for connecting the cartilage harvesting pipe and the connection collecting pipe driving means; Cartilage harvesting device, characterized in that consisting of a cutting member made of a thin wire to cut the cartilage collected in the cartilage collecting pipe to separate from the remaining cartilage tissue. The method of claim 1, Cartilage harvesting device, characterized in that the tip portion of the cartilage harvesting tube protrudes forward than the other front end to form a guide plate. The method of claim 2, A pair of through holes are formed in the guide plate of the cartilage collecting tube, and protrusions are formed on the rear outer circumferential surface of the cartilage collecting tube, and the cutting member passes through the pair of through holes, and the middle portion of the connection collecting tube. The cartilage harvesting device, characterized in that the releasable span across the projections of the cutting member is placed on top of the rear outer peripheral surface of the cartilage harvesting pipe. The method of claim 3, Cartilage harvesting device, characterized in that the jangyo groove for receiving the cutting member is formed on the outer peripheral surface adjacent to the tip of the cartilage collecting pipe. The method according to claim 3 or 4, Further comprising a fixing ring connected to both ends of the cutting member, a plurality of holes are formed at a predetermined interval in the longitudinal direction on the rear outer circumferential surface of the cartilage collection pipe, pin the fixing ring to one of the plurality of holes Cartilage harvesting device, characterized in that can be fixed using. The method of claim 1, An annular groove is formed on the front inner circumferential surface of the cartilage harvesting pipe to be inclined with respect to the vertical cross section of the cartilage harvesting pipe, and the groove is formed with a first hole drilled upward of the cartilage harvesting pipe, and behind the first hole. A second hole located close to the first hole and a third hole located close to the rear end of the cartilage collecting pipe are formed in a straight line in the longitudinal direction on the upper part of the cartilage collecting pipe, and the middle portion of the cutting member is It is in close contact with the groove to maintain the annular through the first hole and both ends of the cutting member enters the second hole and passes through the inner portion of the cartilage collecting tube and exits to the third hole and the rear outer surface of the cartilage collecting tube Cartilage harvesting device, characterized in that placed on top of. The method of claim 6, The cutting member is a cartilage harvesting device, characterized in that the wire rope having a diameter smaller than the depth of the groove. The method of claim 6, The connecting member is detachably mounted to the rear end of the cartilage harvesting pipe and has a first connecting member having an extension extending rearward, and an insertion groove in which the extension of the first connecting member is slidably fitted is formed. A cartilage harvesting device, characterized in that the front inner surface of the groove comprises a second connecting member is provided with a plurality of stop members so that the first connection member moves by a predetermined distance to stop. The method of claim 6, Cartilage harvesting device, characterized in that one or more handles are installed on both sides of the first connection member. The method of claim 1, Cartilage is inserted between the cartilage and the cartilage, the cartilage further comprises a guide member formed in the longitudinal direction concave guide grooves in contact with the guide plate of the cartilage harvesting pipe in the longitudinal direction to guide the slide of the cartilage harvesting pipe Harvester. The method of claim 10, The guide member is a cartilage harvesting device, characterized in that the rear portion is inclined upward and one or more holes are formed in the rear portion. The method of claim 3, The drive means, An air cylinder having a piston rod detachably mounted to a connection member of the cartilage harvesting pipe; A switching valve for selectively providing air pressure to the first and second ports respectively formed in the piston head side chamber and the piston rod side chamber in the air cylinder; The cartilage harvesting device is installed in the first port and the second port, respectively, characterized in that the cartilage collecting device consisting of a speed adjusting valve for adjusting the forward and backward movement speed of the cartilage collecting pipe by adjusting the air pressure of the first port and the second port. The method of claim 6, The drive means, And long moving screw extending to the rear of the connection member of the cartilage harvesting pipe, A screw member rotatably installed in a vertical diaphragm vertically formed inwardly from a casing surrounding the movable screw with a screw portion engaged with the movable screw on an inner circumferential surface thereof; A driven bevel gear integrally installed on one side of the screw member in the direction of the rotation axis of the movable screw and surrounding the movable screw; A driving bevel gear engaged with the driven bevel gear, A motor for installing the driving bevel gear to the rotating shaft to transmit the forward and reverse rotational force to the driven bevel gear; Cartilage harvesting device characterized in that consisting of a rotation preventing pin which protrudes downward from the inner surface of the casing is fitted into the groove formed on the rear outer peripheral surface of the moving screw. The method of claim 13, Cartilage harvesting device further comprises a means for promoting the cutting of cartilage by alternately pulling both ends of the cutting member, respectively. The method of claim 14, Means for promoting the cutting of the cartilage, A pivot member rotatably installed at a front upper portion of the casing and having fixed pins connected to both ends of the cutting member at both sides thereof; A spring having one end free of the free end facing the front side of the one side of the pivot member and the other end being a fixed end fixed to the front inner side of the casing to push the one side of the pivot member backward; A cam provided opposite to the spring, the cam having a lobe for pushing the one side to pivot forward one side of the pivot member while being in contact with a rear surface of one side of the pivot member; Cartilage harvesting device, characterized in that consisting of a cam drive means for rotating the cam. The method of claim 15, The cam drive means, A drive pulley installed adjacent to the drive bevel gear on a rotation shaft of the motor; A driven pulley connected to the driving pulley through a belt so as to be rotatably installed on an upper inner surface of the casing at a position spaced from the driving pulley toward the front of the casing and attached to a side of the cam to receive rotational force of the motor; Cartilage harvesting device, characterized in that consisting of.