KR102541045B1 - Cartilage collecting device - Google Patents

Abstract

The present invention relates to an electric cutting unit that cuts a corresponding cartilage part by rotating an axis and discharges the cut biological tissue to the rear, and is connected to the rear of the electric cutting unit and moves the biological tissue discharged from the electric cutting unit to the rear. A discharge unit, a cartilage collection unit branching from the discharge unit and selectively collecting cartilage tissue among biological tissues discharged from the electric cutting unit, and a branching point branching from the discharge unit to the cartilage collection unit, provided in the discharge unit. Connected to the back of the cartilage collection unit, the discharge unit and the flow path conversion valve that allows only one of the flow paths to be opened, and suctions the cut living tissue while providing vacuum pressure to the discharge unit and the cartilage collection unit. It is included in a set of cartilage transplantation devices that pulverizes the collected cartilage into cartilage powder and transplants the pulverized cartilage powder to the corresponding transplant site of the recipient using a cartilage transplantation device, By collecting and transplanting, a cartilage collection device capable of minimizing the aftereffects of cartilage transplantation and reducing cross-contamination is provided.

Description

Cartilage collecting device {Cartilage collecting device}

The present invention relates to a cartilage harvesting device, and more particularly, to a set of cartilage transplantation devices in which collected cartilage is pulverized into cartilage powder and the pulverized cartilage powder is transplanted to a corresponding transplant site of a recipient using a cartilage transplantation device. The present invention relates to a cartilage collection device capable of minimizing the aftereffects of cartilage transplantation and reducing cross-contamination by collecting and transplanting autologous cartilage of a recipient.

In general, cartilage tissue (軟骨組織) is a tissue composed of cartilage cells and a cartilage matrix filling the gap, and is a connective tissue rich in elasticity, and can be found in vertebrates and cephalopods.

Once the cartilage tissue is damaged, it does not normally regenerate in vivo. When the articular cartilage is damaged, daily activities are restricted along with severe pain, and when it becomes chronic, it causes fatal degenerative arthritis, which prevents normal life and professional activities. get in the way

In order to treat such cartilage damage, in some cases, a treatment of grinding and softening the damaged articular surface or a treatment of causing microfractures or drilling a small hole in the articular surface has been used.

However, the effect of such treatment is that symptoms return after only a few weeks, making it impossible to return to normal life.

In addition, the tissue produced as a result of this treatment is a fibrous tissue, which is completely qualitatively different from normal cartilage tissue.

Moreover, in the case of severe damage to articular cartilage, cartilage regeneration becomes impossible, and in the case of such severe damage, in case of inability to regenerate cartilage, inevitably, a method of completely removing articular cartilage and replacing it with an artificial joint using metal or plastics. Use

Until now, such artificial joint replacement is known as the only treatment for non-regenerative cartilage damage, and this artificial joint replacement is used in more than 300,000 cases annually only for knee joints in the United States.

However, artificial articular cartilage as a machine cannot be used permanently as its lifespan is about 10 years, and in terms of cost, the cost of the device itself alone is around 5 million won per case, which is a great economic burden.

Moreover, such artificial articular cartilage is not recognized as a useful treatment because the frequency of complications has been reported to be too high for use in active young people under the age of 50.

In addition, as a new treatment based on tissue engineering for the treatment of articular cartilage damage, the technology of culturing and transplanting cartilage cells was first studied at the Hospital for Joint Disease in New York, and then studied at the University of Gothenburg in Sweden. It was developed at Sahlgrenska University Hospital. The basis of the new treatment is to collect cartilage that is not used much from a patient with damaged articular cartilage of the knee, artificially cultivate cartilage cells to increase the number of cartilage cells, and then inject them into the patient's cartilage defect. Restoring articular cartilage.

However, the proliferation of chondrocytes is very slow, and the phenotypic change of chondrocytes occurs during the monolayer culture process, which is a unique feature. It requires special technology to culture more than 10 million chondrocytes from a small cartilage tissue of 200 to 300 mg. .

Conventionally, a curette or an osteoteme was used to collect bone or cartilage, but when a curette or an osteoteme is used, the surrounding tissue may be damaged, and the size or amount of tissue as planned by the surgeon is difficult to properly control.

In order to improve these disadvantages, a cylindrical cartilage harvester with one side open has been developed and marketed by Arthrex, but this instrument also does not cut the bottom after being inserted into the tissue unless the target of extraction completely penetrates the bone or cartilage tissue. Therefore, it has been pointed out as a problem that it is difficult to completely collect cartilage tissue.

In addition, recently, microcartilage by crushing cartilage to a fine size is used. In this case, foreign substances (bone, muscle, etc.) are created between the microcartilage, which has hindered the growth and proliferation of cells, and the patient's blood is collected and mixed. There is an inconvenience to be

As a prior art, reference may be made to published utility model No. 20-2011-0002700 (2011.03.16).

The present invention pulverizes the collected cartilage into cartilage powder, and is included in a set of cartilage transplant apparatuses for transplanting the pulverized cartilage powder to the corresponding transplant site of a transplant recipient using a cartilage transplant apparatus, and collects and transplants the recipient's own cartilage. Its purpose is to provide a cartilage collection device capable of minimizing the aftereffects of cartilage transplantation and reducing cross-contamination.

In the cartilage collecting device according to the present invention, a cutting tip for cutting biological tissue is connected to the rotational shaft of an electric motor, and as the rotational shaft of the electric motor rotates, the cutting tip also interlocks and rotates, making contact with the front end of the cutting tip. An electric cutting unit for cutting biological tissue and discharging the cut biological tissue to the rear; a discharge unit that is connected to the rear of the electric cutting unit and flows the living tissue discharged from the electric cutting unit to the rear; Cartilage collecting unit branched from the discharge unit, selectively collecting cartilage tissue among biological tissues discharged from the electric cutting unit; a flow path conversion valve provided at a branch point branching from the discharge unit to the cartilage collecting unit so that only one of the discharge unit and the cartilage collecting unit is opened; and an aspirator connected to the discharge unit and the rear of the cartilage collection unit and sucking in the cut biological tissue while providing vacuum pressure to the discharge unit and the cartilage collection unit, wherein the cartilage collection unit has a cylindrical space formed therein. A first cylindrical member connected to a tube having a hollow inside connected to the flow path switching valve through a nipple formed at the front end, and a rear end and a front end of the first cylindrical member in a cylindrical shape having a hollow inside, screwed together, A second cylindrical member connected to a tube having a hollow interior connected to the inhaler through a nipple formed at the rear end, provided inside the second cylindrical member, and flowing from front to rear along the space of the second cylindrical member. After separating the first cylindrical member and the second cylindrical member of the cartilage collecting unit, including a filter member for filtering and collecting cartilage tissue to collect, the filter member provided inside the second cylindrical member is collected to the filter member. Collect only the autologous cartilage tissue of the collected recipient.

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In addition, the filter member according to the present invention is made of a mesh net, and has a bag shape having a collecting space inside while forming an opening hole at the front, and the length (L) of the collecting space is greater than the diameter (D) of the opening hole. it is preferable...

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Effects exhibited by the cartilage harvesting device according to the present invention are as follows.

The collected cartilage is pulverized into cartilage powder, and the pulverized cartilage powder is included in a set of cartilage transplant instruments that are transplanted to the corresponding transplant site of the recipient using a cartilage transplant instrument, so that the recipient's own cartilage is collected and transplanted It has the effect of minimizing the aftereffects caused by cartilage transplantation and reducing cross-contamination.

1 is an exemplary view showing an example of use of a pressurized cartilage collecting means of a cartilage collecting instrument among cartilage transplantation instrument sets according to an embodiment of the present invention.
2 is an exemplary view showing filtering cartilage collection means of a cartilage collection device among cartilage transplantation device sets according to an embodiment of the present invention.
Figure 3 is an exemplary view showing an example of the use of the filtering cartilage collecting means according to an embodiment of the present invention.
Figure 4 is an exemplary view showing a cartilage grinding mechanism of the cartilage transplant mechanism set according to an embodiment of the present invention.
Figure 5 is an exemplary view showing an example of the use of a cartilage grinding mechanism of the cartilage transplant mechanism set according to an embodiment of the present invention.
Figure 6 is an exemplary view showing an example of the use of the cartilage transplant device of the cartilage transplant device set according to an embodiment of the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in this specification and claims should not be construed as being limited to the usual or dictionary meaning, and the inventor appropriately uses the concept of the term in order to explain his/her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical spirit of the present invention.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical ideas of the present invention, so at the time of the present application, they are equivalent alternatives that can be replaced. It should be understood that variations may exist.

The present invention pulverizes the collected cartilage into cartilage powder, and is included in a set of cartilage transplant apparatuses for transplanting the pulverized cartilage powder to the corresponding transplant site of a transplant recipient using a cartilage transplant apparatus, and collects and transplants the recipient's own cartilage. This relates to a cartilage collection device capable of minimizing the aftereffects of cartilage transplantation and reducing cross-contamination.

The cartilage transplantation device set according to an embodiment of the present invention with reference to FIGS. 1 to 6 includes a cartilage collection device 1000, a cartilage grinding device 2000, and a cartilage transplantation device 3000, wherein the cartilage collection device ( 1000) collects autologous cartilage tissue of the recipient, and collects the cartilage tissue from the corresponding cartilage site of the recipient.

At this time, the cartilage collecting device 1000 includes a pressurized cartilage collecting means 1100 and a filtered cartilage collecting means 1200, and the pressurized cartilage collecting means 1100 and the filtered cartilage collecting means 1200 are described in detail Take a look:

First, the pressurized cartilage collection means 1100 pressurizes the corresponding cartilage part of the transplant recipient to collect cartilage tissue. It includes member 1130.

The support tube body 1110 is a tube body with a hollow inside, and is gripped by the operator's hand, so that the front end of the support tube body 1110 comes into close contact with the corresponding cartilage.

At this time, the cutting tube body 1120 is inserted into the hollow of the support tube body 1110, and the cutting tube body 1120 is also composed of a hollow tube body inside, and a cut 1121 is formed along the circumference at the front end, A flange-shaped stopper 1122 is formed at the rear end.

The cutting tube body 1120 is inserted into the hollow of the support tube body 1110 through the rear end of the support tube body 1110, and the pressing force applied from the rear of the cutting tube body 1120 is applied to the hollow of the support tube body 1110. The cutting tube body 1120 advances (protrudes) and protrudes the cut 1121 toward the front end of the support tube body 1110. Cartilage is cut into a shape, and the cut cartilage remains at the front end of the hollow of the cutting tube body 1120.

Here, the stopper 1122 of the cutting tube body 1120 has a flange shape and extends in the outer circumferential direction from the rear end of the cutting tube body 1120, so that when the cutting tube body 1120 is pressed, the support tube body 1110 The cut 1121 of the cutting tube body 1120 is in contact with the rear end of the protruding length.

Therefore, the pressurized cartilage collecting means 1100 according to an embodiment of the present invention can adjust the cutting depth to the length in which the cut 1121 of the cutting tube body 1120 protrudes from the front end of the support tube body 1110, which is It is equal to the distance between the rear end of the support pipe body 1110 and the stopper 1122 of the cutting pipe body 1120, and consequently, the cut 1121 of the cutting pipe body 1120 protrudes to the length of the support pipe body 1110 It is easy to adjust the length.

Then, the push member 1130 is inserted into the hollow of the cutting tube body 1120 through the rear of the cutting tube body 1120, and pushes the cut cartilage pieces remaining at the front end of the cutting tube body 1120 to the outside. Cartilage is collected by

Here, the cartilage fragments separated from the front end of the cutting tube body 1120 by the push member 1130 and collected are accommodated in the cartilage grinding device 2000 and pulverized.

In addition, the filtering cartilage collecting means 1200 cuts the corresponding cartilage with a rotating cutting tip (cutting blade: 1212), sucks the cut biological tissue by the rotating cutting tip 1212, and collects only cartilage from the biological tissue. collected by filtering.

At this time, the filtering cartilage collecting means 1200 includes an electric cutting part 1210, a discharge part 1220, a cartilage collecting part 1230, and an inhaler 1240, the electric cutting part 1210, Looking at the discharge unit 1220, the cartilage collecting unit 1230, and the inhaler 1240 in more detail as follows.

First, in the electric cutting unit 1210, like a conventional electric cutting machine, a cutting tip 1212 for cutting biological tissue is connected to the rotating shaft of the electric motor 1211, and the rotating shaft of the electric motor 1211 rotates. Accordingly, while the cutting tip 1212 also interlocks and rotates, the living tissue in contact with the front end of the cutting tip 1212 is cut.

Therefore, when the electric cutting unit 1210 touches the cutting tip 1212 to the corresponding living body part and drives the electric motor 1211 to rotate the rotating shaft, the cutting tip 1212 is cut into the corresponding biological tissue (cartilage part). ) is axially rotated to cut biological tissue, and the cut biological tissue is discharged to the rear of the electric cutting part 1210 along the inside of the cutting tip 1212.

At this time, the biological tissue discharged to the rear of the electric cutting unit 1210 is introduced into the discharging unit 1220 and the cartilage collecting unit 1230, and the discharging unit 1220 and the cartilage collecting unit 1230 are the electric cutting unit. It is connected to the rear of 1210, and induces biological tissue discharged from the electric cutting unit 1210 or collects cartilage tissue among biological tissues.

Here, the discharge unit 1220 is made of a tubular body or tube having a hollow interior, and guides the living tissue discharged from the electric cutting unit 1210 from the front to the rear along the hollow.

In the discharge unit 1220, a cartilage collecting unit 1230 is branched, and the cartilage collecting unit 1230 selectively collects cartilage tissue from biological tissues discharged from the electric cutting unit 1210.

At this time, a flow path switching valve 1221 is provided at a branch point where the cartilage collecting unit 1230 diverges from the discharge unit 1220. ), it is preferable to adjust so that only one of the flow paths is open.

The electric cutting unit ( 1210) leads to the inhaler 1240 connected to the rear.

Therefore, in the discharge unit 1220 and the cartilage collection unit 1230, only one of the discharge unit 1220 or the cartilage collection unit 1230 is opened by switching the flow path switching valve 1221, the The living tissue discharged from the electric cutting unit 1210 is guided backward by vacuum pressure provided by the suction machine 1240, and cartilage tissue is collected from the living tissue discharged from the electric cutting unit 1210.

In addition, the cartilage collecting unit 1230 includes a first cylindrical member 1231, a second cylindrical member 1232, and a filter member 1233, and the first cylindrical member 1231 forms a space therein. In a cylindrical shape, it is connected to the rear of the electric cutting part 1210 through a nipple formed at the front end, and the second cylindrical member 1232 is a cylindrical shape with a hollow inside, and is connected to the rear end of the first cylindrical member 1231 and The front end is screwed and connected to the inhaler 1240 through a nipple formed at the rear end.

At this time, a filter member 1233 is provided inside the second cylindrical member 1232, and the filter member 1233 is cartilage among biological tissues flowing from front to rear along the space of the second cylindrical member 1232. Filter only organizations.

Here, the filter member 1233 is made of a mesh net, forms an opening in the front side and has a collecting space therein, in the form of a bag, and the length (L) of the collecting space is greater than the diameter (D) of the opening hole. desirable.

The suction unit 1230 is connected to the rear of the discharge unit 1220 and the cartilage collecting unit 1220 of the above configuration, and the suction unit 1230 applies vacuum pressure to the cartilage collecting unit 1220 while cutting biological tissue. inhale

Therefore, the filtering cartilage collecting means 1200 according to an embodiment of the present invention having the above configuration includes an electric cutting unit 1210 for cutting the corresponding cartilage and discharging the cut biological tissue, and the electric cutting unit 1210 Connected to the rear of the electric cutting part 1210, the discharge part 1220 for flowing the biological tissue discharged from the rear, and branched from the discharge part 1220, optionally in the electric cutting part 1210 A cartilage collecting unit 1230 for filtering and separating only cartilage from the discharged biological tissue, and an aspirator 1230 for sucking the biological tissue discharged from the discharge unit 1220 and the cartilage collecting unit 1230, cut the corresponding cartilage. And, while sucking the cut biological tissue, only the cartilage tissue among the biological tissues is filtered and collected.

The cartilage tissue collected through the cartilage collecting device 1000 is transferred to the cartilage grinding device 2000, and is pulverized into a corresponding size in the cartilage grinding device 2000.

At this time, the cartilage grinding device 2000 includes a container 2100 for accommodating the cartilage tissue to be pulverized, and a grinder 2200 for pulverizing the cartilage tissue accommodated in the container 2100, more specifically, the accommodation container 2100. The container 2100 has a cylindrical shape with an open upper surface, and accommodates the cartilage tissue collected through the cartilage collecting device 1000 in an internal space through the open upper surface, and the crusher 2200 is placed on the upper side of the container 2100. are joined with screw joints.

Here, as the crusher 2200 presses the pressing part 2230 in a touch method, the blade member 2222 momentarily protrudes into the accommodation space of the accommodation container 2100, and is accommodated in the internal space of the accommodation container 2100. Cartilage tissue is cut and pulverized.

Looking at the grinder 2200 in more detail, the grinder 2200 includes a case 2210, a blade body 2220, a pressing part 2230, and a plate 2240, the case 2210 The overall shape is bell-shaped, with the lower side forming a circle and the upper side forming a dome shape.

In addition, a blade body 2220 and a plate 2240 are embedded inside the case 2210. First, the plate 2240 has a disk shape and is provided on the lower side of the case 2210, so that the case 2210 forms the lower side of

Here, a stopper 2211 is formed at the lower end of the case 2210 and the upper side of the space in which the blade body 2220 is embedded in the inside of the case 2210, so that the blade body 2220 moves upward on the corresponding line. It is controlled not to rise, and the plate 2240 is prevented from being separated from the lower end of the case.

In addition, a hole communicating with the outside is formed at the center of the upper side of the case 2210, so that the pillar of the pressing part 2230 is inserted into the hole, so that the lower end of the pillar of the pressing part 2230 is the blade body 2220. to be connected to the upper part of

In addition, a plurality of through holes are arranged at regular intervals in the plate 2240 so that the blade member 2222 of the blade body 2220 can pass through, and a plurality of guides 2241 along the periphery of the plate 2240. ) is provided to have an upward length, and the periphery of the blade body 2220 provided on the upper part of the plate 2240 is coupled, so that the blade body 2220 moves up and down along the guide 2241. It guides you up and down when you go up and down.

At this time, the guide 2241 of the plate 2240 is provided with a spring 2242, and the spring 2242 is provided on the top of the plate 2240 by the physical pressure applied from the upper side of the blade body 2220 When it descends, it is compressed, and when the physical pressure is released, the elastic repulsive force of the spring 2242 pushes the blade body 2220 upward and returns it to its original position.

Also, the blade body 2220 includes a single body block 2221, and a plurality of blade members 2222 are disposed under the body block 2221 at regular intervals.

At this time, it is preferable that the body block 2221 has a cylindrical shape so that it can move up and down in the inside of the case 2100, and the blade member 2222 has a rectangular shape at the bottom to cut and crush cartilage tissue. Forming a blade, the blade member 2222 is disposed at a position corresponding to the through hole formed in the plate 2240, so that when the blade body 2220 descends, the blade member 2222 moves along the plate 2222. It is preferable to protrude into the inner space of the container 2210 through the through hole of 2240.

In addition, a guide hole 2223 through which the guide 2241 of the plate 2240 passes is formed around the body block 2221, and the upper center of the body block 2221 has a 'T'-shaped cross section. The lower end of the pressing part 2230 constituting is coupled, and the physical pressure applied to the pressing part 2230 is transmitted to the body block 2221, so that the body block 2221 descends.

Therefore, the crusher 2200 according to an embodiment of the present invention is screwed to the upper side of the container 2100 accommodating the cartilage tissue, and then the user presses the pressing part 2230 to apply physical pressure to the case ( The blade body 2220 embedded inside the case 2210 descends along the inside of the case 2210, and as the blade body 2220 descends, the blade body 2220 is provided at a position corresponding to the through hole of the plate 2240 As the blade member 2222 descends, it emerges below the plate 2240 and cuts and pulverizes the cartilage tissue accommodated in the container 2100.

And when the user releases the pressure of the pressing part 2230, the blade body 2220 rises by the elastic repulsive force of the spring 2242 provided in the guide 2241, and as the blade body 2220 rises Accordingly, the blade member 2222 provided on the lower side of the blade body 2220 also rises to the upper side of the plate 2240 while rising along the through hole of the plate 2240.

Therefore, as the user using the grinder repeatedly presses and releases the pressing part 2230 several times, the blade body 2220 built in the case 2210 moves up and down several times in conjunction with it. The blade member 2222 of the blade body 2220 continuously grinds the cartilage tissue accommodated in the container 2100 to make cartilage powder.

In addition, when the blade body 2220 and the plate 2240 of the grinder 2200 according to an embodiment of the present invention return to their original positions by releasing the pressure of the pressing part 2230, the pressing part 2230 acts as an axis. The guide protrusion 2212 is formed along the inner circumferential surface of the case 2210, and the rotation guide groove along the outer circumferential surface of the body block 2221 of the blade body 2220 ( 2224) form.

At this time, the rotation guide groove 2224 is formed in a zigzag shape in which vertical lines and oblique lines are alternately connected, so that when the blade body 2220 descends, it descends along the vertical rotation guide groove 2224, and when it ascends, it descends along an oblique line. It rises while rotating along the rotation guide groove 2224 of the.

Here, when the blade body 2220 rotates and ascends, it is preferable that the plate 2240 also rotates in conjunction with each other.

The cartilage powder crushed by the cartilage grinding device 2000 according to an embodiment of the present invention is transferred to the cartilage transplant device 3000 and transplanted to the corresponding transplant site through the cartilage transplant device 3000.

At this time, the cartilage transplant device 3000 includes a syringe member 3100, a piston 3200, and a cannula 3300. The syringe member 3100 is a tubular body having a hollow interior, Cartilage powder crushed by the cartilage crusher 2000 is accommodated in the hollow, and a funnel member 3110 is screwed to the lower side of the syringe member 3100 so that the funnel member 3110 is collected and discharged around the discharge port of the funnel member. do.

The piston 3200 is inserted into the inner hollow through the open upper surface of the syringe member 3100 and presses the cartilage contained in the inner space of the syringe member 3100 forward.

The cannula 3300 is a tubular body with a hollow inside like a normal cannula, and is coupled to the discharge port side of the funnel member 3110 of the syringe member 3100, through the discharge port of the funnel member 3110. The discharged cartilage powder is guided to the corresponding transplant site.

At this time, the cannula 3300 is formed so that a pair of finger hooks 3310 are symmetrical to each other on the upper side, facilitating the discharge of cartilage powder.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1000: cartilage collection device 1100: pressurized cartilage collection means
1110: support tube 1120: cutting tube
1121: cut 1122: stopper
1130: push member 1200: filtering cartilage collecting means
1210: electric cutting unit 1211: electric motor
1212: cutting tip 1220: discharge unit
1221: flow path conversion valve 1230: cartilage collection unit
1231: first cylindrical member 1232: second cylindrical member
1233: filter member 1240: inhaler
2000: cartilage grinding device 2100: container
2200: grinder 2210: case
2211: stopper 2212: guide protrusion
2220: blade body 2221: body block
2222: blade member 2223: guide hole
2224: rotation guide groove 2230: pressing part
2240: plate 2241: guide
2242: spring 3000: cartilage transplant mechanism
3100: syringe member 3110: funnel member
3200: piston 3300: cannula
3310: finger hook

Claims (8)

A cutting tip for cutting biological tissue is connected to the rotary shaft of the electric motor, and as the rotary shaft of the electric motor rotates, the cutting tip also rotates in conjunction with each other to cut the biological tissue in contact with the front end of the cutting tip. Electric cutting unit for discharging biological tissue to the rear;
a discharge unit connected to the rear of the electric cutting unit and configured to flow biological tissue discharged from the electric cutting unit to the rear;
Cartilage collecting unit branched from the discharge unit, selectively collecting cartilage tissue among biological tissues discharged from the electric cutting unit;
a flow path conversion valve provided at a branch point branching from the discharge unit to the cartilage collecting unit so that only one of the discharge unit and the cartilage collecting unit is opened; and
It is connected to the discharge part and the rear of the cartilage collecting part, and includes an aspirator for sucking the cut biological tissue while providing vacuum pressure to the discharge part and the cartilage collecting part,
The cartilage collection unit
A first cylindrical member having a cylindrical shape having a space therein and connected to a tube having a hollow inside connected to the flow path switching valve through a nipple formed at a front end;
a second cylindrical member having a cylindrical shape with a hollow interior, to which the rear and front ends of the first cylindrical member are screwed together, and connected to a tube having a hollow interior connected to the inhaler through a nipple formed at the rear end;
Including a filter member provided inside the second cylindrical member and filtering and collecting cartilage tissue flowing from front to rear along the space of the second cylindrical member,
After separating the first cylindrical member and the second cylindrical member of the cartilage collecting unit, the filter member provided inside the second cylindrical member is collected to collect only the autologous cartilage tissue of the transplant recipient collected in the filter member. machine.
delete The method of claim 1,
The filter member is
Cartilage collecting device, characterized in that the length (L) of the collecting space is greater than the diameter (D) of the opening hole in the form of a bag having a collection space therein while forming an opening hole in the front. delete delete delete delete delete

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