CN111568601B - Filler-injected orthopedic implant - Google Patents

Abstract

The present invention provides a filler-injecting type orthopedic implant which can accurately and rapidly position a filler at an operation site and can continuously inject the volume of the filler for a long time by uniformly and rapidly injecting the filler to a specific operation site. To this end, the present invention discloses a filler-injected orthopedic implant characterized by comprising: a hollow-shaped body portion made of a biocompatible material; an insertion hole provided at one end of the body portion, into which a needle of an injection device is inserted; and a plurality of discharge holes arranged to be spaced apart from each other in a longitudinal direction of the body so that the liquid filler filled into the body through the insertion hole is discharged to the outside.

Description

Filler injection type orthopedic implant

Technical Field

The present invention relates to a filler-injecting type cosmetic implant, and more particularly, to a filler-injecting type cosmetic implant for injecting a filler into skin tissue to improve wrinkles or repair depressed portions.

Background

Generally, plastic surgery means surgery or operation to surgically correct the deformation of the body caused by congenital or acquired factors to restore defects in function and appearance. Recently, as compared with conventional plastic surgery methods, which mostly involve incision of a body part, such as general surgery, superior plastic effects can be expected only by relatively simple surgical procedures, such as injection surgical procedures, and therefore, recently, plastic surgery for cosmetic purposes has been increasingly frequently performed in plastic surgery, dermatology, and the like.

In particular, it is known that Filler (Filler) administration, which exhibits an excellent effect in improving wrinkles or facial contours naturally occurring due to aging, can exhibit a remarkable effect in a short time only by simple injection administration, and is a shaping method widely used in all ages of men and women.

In general, the filler application is performed by injecting a filler into a site to be reshaped to fill a space in a skin tissue where wrinkles are induced, thereby improving wrinkles, and for example, the filler is inserted into a position of a body part where wrinkles between eyebrows, fine wrinkles in canthus, splayed wrinkles, depressed portions of cheeks, depressed portions of forehead, fundus oculi, nose, and the like can be accurately penetrated, thereby removing wrinkles or repairing depressed portions in the desired site.

The filler should be made of a material that can be easily decomposed and absorbed in skin tissues and does not cause foreign body reaction, and thus a substance in a colloidal (Colloid) state having chemical properties safe to the human body is mainly used.

As shown in fig. 1, a conventional filling tool used in filling operation uses a syringe-type injection device 10 including a syringe cylinder 11 for storing a filling material and a needle 13 or a Cannula (Cannula) coupled to an outlet of the syringe cylinder 11. The needle 13 is a form commonly used in a general medical syringe, and is configured to be easily inserted into skin tissue by obliquely cutting the tip to form a sharp portion. Therefore, the filler operation is performed by inserting a needle 13 or a Cannula (Cannula) at an operation site where reshaping is desired and pressing the plunger 12 to inject the filler.

In the case of the filler application using the conventional injection device 10 for filler application, the liquid or gel-packed colloidal filler cannot be formed into a certain form at the initial stage of injection into the skin tissue. That is, in order to position the filler at a specific and correct operation site, the ability of the operator to take care is required, and thus there is a problem that the post-operation satisfaction varies greatly depending on the operator or the operation site.

In addition, in the case of a filling operation using the needle 13 of the injection device 10, in order to inject a correct volume of filling material into a specific operation site, the operator needs to continuously operate the needle 13, which causes a problem that side effects at the operation site become more serious.

In particular, since the needle 13 of the injection device 10 has a sharp portion formed at the distal end, blood vessels and nerve tissues are damaged by some carelessness when the needle is inserted into skin tissues or changed positions, and thus, there is a problem that skin bruising, swelling, spasm, and the like are caused as accompanying side effects.

On the other hand, not only does a liquid or gel-like colloidal filler fail to form a certain form at the initial stage of injection into skin tissue, but also the volume of the injected filler cannot be continuously maintained at a desired position, and thus, it is a matter of course that the effect of wrinkle improvement or the like cannot be normally exerted, and a phenomenon that the filler flows down in the skin tissue due to gravity is caused over time, thereby causing side effects such as skin stretching and sagging.

Documents of the prior art

Patent literature

Patent document 1: korean laid-open patent publication No. 2009-0131809 (published 30.12.2009)

Disclosure of Invention

In order to solve the conventional problems, the present invention provides a filler-injection type orthopedic implant which can rapidly and uniformly position the volume of a filler at a specific operation site by rapidly and uniformly supplying the filler filled in the interior to the exterior of a surface.

Further, the present invention provides a filler injection type orthopedic implant that enables a block of filler positioned at a specific operation site to last for a long time by constituting the injected filler into a skeleton structure.

In order to achieve the above-described object of the present invention, a filler-injection type orthopaedic implant according to the present invention is characterized by comprising: a hollow-shaped body portion made of a biocompatible material; an insertion hole provided at one end of the body portion, into which a needle of an injection device is inserted; and a plurality of discharge holes arranged to be spaced apart from each other in a longitudinal direction of the body so that the liquid filler filled into the body through the insertion hole is discharged to the outside.

At this time, in the filler-injecting type cosmetic implant according to the present invention, the discharge holes may be disposed to maintain a certain interval along a circumference of the surface of the body part, and the discharge holes may be disposed to be staggered with each other in a length direction of the body part.

Further, in the filler injection type cosmetic implant according to the present invention, the discharge hole may be formed to have a smaller size as it approaches the insertion hole side.

Further, in the filler injection type cosmetic implant according to the present invention, the discharge holes are formed such that the closer to the insertion hole side, the larger the interval between the discharge holes adjacent to each other is.

Further, in the filler injection type orthopaedic implant according to the present invention, it further includes hooking protrusions formed to protrude from a surface of the body portion and arranged to be spaced apart from each other in a length direction of the body portion.

In this case, in the filler-injecting type orthopaedic implant according to the present invention, the hooking protrusion may be formed such that the size of the hooking protrusion disposed at the inlet side of the insertion hole is larger than the size of the other remaining hooking protrusions.

In addition, the packing-injected orthopaedic implant according to the present invention may further include a spiral hooking protrusion formed to protrude from a surface of the body portion and having a certain pitch in a longitudinal direction of the body portion.

In this case, in the filler-injecting type orthopedic implant according to the present invention, cut portions may be formed at the spiral-shaped hooking protrusion, the cut portions being disposed to be spaced apart from each other along a spiral.

Further, in the filler injection type orthopaedic implant according to the present invention, it may further include groove portions formed to be recessed from the surface of the main body portion and arranged to be spaced apart from each other in the longitudinal direction of the main body portion, in which case the discharge holes may be formed in the groove portions.

In addition, the filler-injecting type orthopaedic implant according to the present invention may further include a needle holder which is attached between the needle and the body part in a state in which the body part is inserted into the living body so that a part of the needle is exposed to the outside of the living body, and which receives an external reaction force in a direction opposite to a moving direction of the needle when the needle is separated from the body part, thereby guiding the movement of the needle while maintaining the position of the body part.

The orthopaedic implant according to the present invention can be filled with a filler in a uniformly distributed manner to a peripheral operation site through a plurality of discharge holes formed along the length or circumference, and can improve the operation satisfaction.

In addition, the present invention does not require excessive manipulation of a needle inserted into a living body during the injection of the filler, and thus can facilitate the operation and reduce side effects of the operation such as bruising, swelling, or spasm due to damage to blood vessels or nerve tissue.

In addition, the present invention can not only inject the filler to the peripheral portion but also maintain the skeleton structure of the filler by the plastic implant of the biocompatible material, thereby making it possible to increase the duration of the volume of the injected filler and greatly improve the wrinkle improvement effect.

In addition, the present invention can properly maintain the position of the orthopedic implant during or after the operation by forming the protrusion or groove along the length or circumference, thereby further improving the operation satisfaction.

Drawings

Fig. 1 is a perspective view showing a conventional injection device for injecting a filler.

Fig. 2 is a perspective view for explaining a filler injection type orthopaedic implant according to an embodiment of the present invention.

Fig. 3 is a cross-sectional illustration of the filler-injected orthopedic implant of fig. 2.

Fig. 4 and 5 are diagrams illustrating various embodiments of a filler-injected orthopaedic implant according to the present invention.

Fig. 6 is a diagram illustrating additional various embodiments of a filler-injected orthopedic implant according to the present invention.

Fig. 7 is an explanatory view for explaining a process of separating a needle of an injection device after the insertion of the filler injection type orthopedic implant according to the present invention is completed.

Detailed Description

Hereinafter, a description will be given with reference to the drawings of preferred embodiments of the present invention which can specifically achieve the above-described problems. In describing the present embodiment, the same names and the same reference numerals are used for the same structures, and additional description thereof is omitted.

Fig. 2 is a perspective view for explaining a filler injection type orthopaedic implant according to an embodiment of the present invention, and fig. 3 is a sectional illustration of the filler injection type orthopaedic implant of fig. 2.

The orthopaedic implant 100 according to the present invention allows the filler to be uniformly and rapidly injected to a specific operation site and to be accurately and rapidly positioned at the operation site, and the volume of the injected filler can be stably maintained by maintaining the skeletal structure of the injected filler.

The filler-injecting type orthopedic implant 100 according to the present invention is inserted into the body of a living body at an operation site, and includes a main body 110 having a hollow shape.

The body 110 has a hollow 111 formed therein, and can realize the following states: the insertion hole 120 into which the needle 13 of the injection device can be inserted is provided at one end thereof in an open state, and the tip portion 112 inserted into the living body, that is, the other end thereof in a closed state.

In addition, the body 110 may be made of a biocompatible material harmless to living organisms.

In the biocompatible material, for example, one or a combination of materials selected from the following may be used: polylactic acid (PLA-polylactide), polyglycolic acid (PGA-polyglycolide), polyhydroxyalkyd acid (polyhydroxyalkyd acid), polyhydroxybutyric acid (PHB-polyhydroxybutyric acid), polydioxanone (PDO-polydioxanone), and caprolactone (CL-caprolactone, caprolactone). But is not particularly limited to these materials.

In addition, the body part 110 may have a predetermined rigidity to be accurately inserted into the operation site.

Further, the main body 110 may also be made of a biodegradable material that decomposes when a predetermined time elapses.

The predetermined time may refer to a time during which the removal of wrinkles and the restoration state of the depressed portions can last for a certain time after the injection of the filler.

The body 110 may be made of a material that deforms into a Gel (Gel) shape after being inserted into a living body. For example, temperature sensitive materials may be used.

Further, the main body 110 may have a certain length, so that the length of the main body 110 can be variously adjusted in consideration of an operation site to be inserted, an amount of the filler to be injected, a biological structure of a patient, and the like.

In addition, the body part 110 can be variously adjusted in cross-sectional shape and diameter in consideration of an operation site to be inserted, an amount of the injected packing, a biological structure of a patient, and the like, in addition to the length. Although the cross-sectional structure is formed in a circular shape in the drawing, it may be formed in a polygonal shape differently from this.

In addition, the body part 110 may also have flexibility in consideration of the operation site of the human body to be inserted. As shown in the figure, the straight line shape can be kept, and the folding type solar cell can also be used in a bending mode with a certain curvature. This allows the surgical instrument to be applied to various surgical sites, and a more accurate position can be secured for such surgical sites.

The body 110 of the orthopedic implant 100 is configured such that a needle 13 of an injection device 10 (fig. 1) is inserted into an insertion hole 120 formed at one end thereof, and an operator can insert the injection device 10 into a desired operation site in a living body to perform an operation.

In another aspect, an orthopedic implant 100 according to the present invention can include a needle support 170.

That is, referring to fig. 2 and 7, the needle supporter 170 is attached between the needle 13 and the body 110 in a state where the body 110 is completely inserted into the living body so that a part of the needle supporter is exposed to the outside of the living body, and receives an external reaction force opposite to the moving direction of the needle 13 in the process of separating the needle 13 from the body 110, thereby guiding the movement of the needle 13 while maintaining the position of the body 110.

For example, the needle supporter 170 may have a through hole 171 through which the needle 13 passes, a position fixing portion 172 coupled to the insertion hole 120 of the body 110 at one end, and a grip portion 173 formed at the other end, the grip portion 173 having a larger diameter than the body 110 and being exposed to the outside of the living body of the operation site.

To explain the operation of the needle holder 170, before the orthopaedic implant 100 is inserted and the operation is performed, the needle holder 170 is first attached to the needle 13 so that the needle 13 of the injection device 10 (see fig. 1) penetrates the through hole 171 of the needle holder 170, and then the orthopaedic implant 100 is attached to the needle 13. Thereafter, the operator directly operates injection device 10 to insert orthopedic implant 100 into the desired site of operation. After completing the insertion of the orthopedic implant 100, the operator pressurizes the piston 12 of the injection device 10 to inject the filler into the orthopedic implant 100.

Referring to fig. 7, as described above, when the filler injection is completed, the operator separates the injection device 10 from the orthopaedic implant 100 with one hand in a state where the operator holds the grip 173 of the needle support 170 with the other hand.

As a result, in the process of separating the injection device 10 from the orthopaedic implant 100, the position fixing part 172 of the needle support 170 is brought into a state of being closely coupled to the insertion hole 120 of the main body part 110, and the grip part 173 is brought into a state of being exposed to the outside of the skin tissue, so that the operator can provide a reaction force, and thus the position of the main body part 110, which is inserted in the process of separating the needle 13, can be prevented from moving together with the position of the needle 13, and the separating movement of the needle 13 can be correctly guided, so that the operator can very easily separate the injection device 10 from the orthopaedic implant.

Next, the filler injection type orthopaedic implant 100 according to the present invention includes a plurality of discharge holes 130.

The discharge holes 130 may be disposed to be spaced apart from each other in a length direction of the body 110 so that the liquid filler filled into the interior of the body 110 through the insertion hole 120 can be discharged to the outside.

Fig. 4 and 5 are views illustrating various embodiments of a filler injection type orthopaedic implant according to the present invention, which show discharge holes 130 configured in various forms.

As shown, the discharge holes 130 may be provided at various intervals and numbers along the length direction of the body part 110. In this way, the number and the interval of the discharge holes 130 with respect to the longitudinal direction of the body 110 may be variously adjusted as shown in fig. 2, 4 (a), and 4 (b), in consideration of the length of the body 110, the site to be operated, the amount of the filler to be injected, the biological structure of the patient, and the like.

In this way, the entire filler can be uniformly filled into the peripheral operation site including the body 110 through the discharge holes 130 formed in the longitudinal direction of the body 110.

Further, the discharge holes 130 may be configured to maintain a certain interval along the circumference of the surface of the body part 110.

As shown in the drawing, two discharge holes 130 are arranged at 180-degree intervals in fig. 2, and four discharge holes 130 are arranged at 90-degree intervals in fig. 4 (a) and 4 (b), respectively. In this way, the number and the interval of the discharge holes 130 arranged at intervals along the periphery of the surface of the body 110 may be variously adjusted in consideration of the operation site, the amount of the filler to be injected, the living body structure of the patient, and the like.

By disposing the plurality of discharge holes 130 at equal intervals along the periphery of the surface of the body 110 in this manner, the filler can be more uniformly filled into the peripheral operation site including the body 110.

Further, the discharge holes 130 may be arranged such that the discharge holes 130 adjacent in the longitudinal direction of the body 110 are staggered with each other.

By arranging the discharge holes 130 adjacent in the longitudinal direction of the body 110 so as to intersect with each other in this way, the filler can be more uniformly filled into the peripheral operation site including the body 110.

In addition, orthopedic implant 100 according to the present invention can include a hooking protrusion 140.

The hooking protrusions 140 may be formed to protrude from the surface of the body part 110 and arranged to be spaced apart from each other in the length direction of the body part 110.

The hooking protrusion 140 may be formed to have directionality in the direction of insertion into the operation site. That is, the insertion of the orthopaedic implant 100 is made smooth with a small frictional resistance in the direction of inserting the orthopaedic implant 100 to the operation site, and a large frictional resistance in the opposite direction to the direction in which the orthopaedic implant 100 is inserted, so that the orthopaedic implant 100 is not dropped in the opposite direction.

As a result, hooking protrusion 140 may prevent orthopedic implant 100 inserted into a desired surgical site from falling out in the opposite direction of being inserted, or from falling out to other locations.

On the other hand, in the case where the plurality of hooking protrusions 140 are provided in the longitudinal direction of the body part 110, it is preferable that the size (diameter) of the hooking protrusion 140 ″ provided at the inlet side of the insertion hole 120 is formed to be larger than the size (diameter) of the other remaining hooking protrusions 140.

As described above, the reason why the size of the hooking protrusion 140 ″ provided at the entrance side of the insertion hole 120 is relatively increased is that the main body 110 can be prevented from being detached again in the opposite direction after insertion by relatively increasing the entrance side contact area of the main body 110 close to the skin tissue after the main body 110 is completely inserted into the operation site.

On the other hand, as shown in (c) of fig. 4, the orthopedic implant 100 according to the present invention may include a groove part 160.

The groove portions 160 may be formed to be recessed from the surface of the body portion 110, and arranged to be spaced apart from each other in the length direction of the body portion 110.

The groove 160 may be formed in a ring shape, different from the illustrated one.

Such a groove portion 160 can prevent the orthopaedic implant 100 inserted into the operation site from falling off in the opposite direction of insertion or falling off to another position, like the hooking protrusion 140.

As described above, when the groove 160 is formed on the surface of the body 110, the discharge hole 130 is preferably formed in the region of the groove 160.

Since the groove 160 is recessed from the surface of the body 110, it belongs to a region where a contact load applied from a living tissue is relatively weak compared to the other surface of the body 110 in a state of being inserted into a living body.

As a result, when the discharge holes 130 are disposed in the groove 160, the problem of clogging of the discharge holes 130 from the living tissue can be prevented, and the pressure resistance can be reduced in the process of discharging the filler to the living tissue, so that the filler can be smoothly injected.

On the other hand, as shown in fig. 5 (a), the discharge hole 130 according to the present invention may be formed such that the size (D1 > D2) becomes gradually smaller as it gets closer to the insertion hole 120 side from the front end portion 112 of the body portion 110.

As the piston 12 (fig. 1) of the injection device 10 (fig. 1) is pressurized, the filler filled into the hollow portion 111 through the insertion hole 120 is discharged to the periphery of the body portion 110 through the discharge hole 130, and at this time, a relatively large discharge pressure acts on the region adjacent to the injection device 10, that is, the side of the insertion hole 120, as compared to the distal end portion 112, which is a region distant from the injection device 10.

For this reason, a phenomenon occurs in which the filler is discharged more through the discharge holes 130 adjacent to the insertion hole 120 side where the discharge pressure is relatively large than the front end portion 112.

In view of this, the present invention is configured such that the size (D1 > D2) of the discharge hole 130 is gradually reduced from the front end portion 112 of the body 110 toward the insertion hole 120, so that the packing can be uniformly discharged through the discharge hole 130 formed along the longitudinal direction of the body 110 as a whole in the process of pressurizing the piston 12 (fig. 1) of the injection device 10 (fig. 1).

On the other hand, as shown in fig. 5 (b), the discharge holes 130 according to the present invention may be formed such that the intervals (d 1< d 2) between the discharge holes 130 adjacent to each other gradually become larger as the front end portion 112 of the body portion 110 approaches the insertion hole 112.

This is also in consideration of the phenomenon that the filler is discharged relatively more through the discharge holes 130 adjacent to the insertion hole 120 side of the body 110 having a relatively large discharge pressure than the front end portion 112 of the body 110, and the present invention is configured such that the interval (d 1< d 2) between the discharge holes 130 adjacent to each other gradually increases as the front end portion 112 of the body 110 approaches the insertion hole 120 side, and the filler can be uniformly discharged through the discharge holes 130 formed in the longitudinal direction of the body 110 as a whole in the process of pressurizing the piston 12 (fig. 1) of the injection device 10 (fig. 1).

Fig. 6 is a diagram illustrating additional various embodiments of a filler injection-type orthopaedic implant according to the present invention, showing various forms of hooking protrusions.

First, the filler injection type orthopaedic implant 100 according to the embodiment shown in fig. 6 is different in that the front end portion 112 of the body portion 110 is formed in a streamlined shape.

By forming the distal end portion 112 of the main body portion 110 that enters the living body in a streamlined manner, frictional resistance with the living body during insertion of the orthopedic implant 100 can be reduced, irritation to the skin can be minimized, and smooth insertion of the main body portion 110 can be achieved.

Next, as shown in fig. 6 (a), the hooking protrusions 240 according to the embodiment are formed to protrude from the surface of the main body part 110 and to have a semicircular shape equipped with the end jaws 241a at both ends in the circumferential direction, and the hooking protrusions 240 of the semicircular shapes disposed to be adjacent to each other in the longitudinal direction of the main body part 110 are staggered with each other.

By arranging the hooking protrusions 240 having the end jaws 241a at both ends in the circumferential direction so as to be staggered in the longitudinal direction of the main body 110, the contact area with the skin can be maintained wider in a state where the main body 110 is inserted into the living body, thereby promoting skin regeneration. In addition, since the contact area between the packing discharged to the outside of the main body 110 and the catching protrusion 240 can be maintained wider, the packing can be positioned more quickly.

Further, since the end jaws 241a are formed at both ends of the hooking protrusion 340 in the circumferential direction, resistance can be generated in the circumferential direction of the implant 100 inserted into the living body, and thus the position of the implant 100 can be prevented from being changed while being rotated.

On the other hand, as shown in fig. 6 (b), the hooking protrusion 340 according to the embodiment is formed to protrude from the surface of the main body part 110, and is configured of a spiral structure having a certain pitch in the length direction of the main body part 110.

Thus, by forming the hooking protrusion 340 in a spiral structure, frictional resistance between the orthopedic implant 100 and a living body when it is inserted can be reduced, so that irritation of the skin can be minimized, and the orthopedic implant can be smoothly inserted into the skin tissue.

On the other hand, as shown in fig. 6 (c), the spiral-shaped hooking protrusion 340 may include cut portions 341, the cut portions 341 being configured to be spaced apart at intervals along the spiral.

By forming the spiral hooking protrusion 340 including the cut portion 341 in this manner, frictional resistance between the implant and the living body when the implant is inserted can be reduced by the spiral hooking protrusion 340, so that irritation of the skin can be reduced, and smooth insertion can be performed.

Furthermore, by providing the cut portions 341 and forming the end jaws 341a at both ends of the hooking protrusion 340 along the spiral, the contact area with the skin can be maintained wider, thereby promoting skin regeneration, and the contact area between the packing discharged to the outside of the body part 110 and the hooking protrusion 340 can be maintained wider, thereby positioning the packing more quickly.

Further, since the end jaws 341a are spirally formed at both ends of the hooking protrusion 340, resistance can be generated in the circumferential direction of the implant 100 inserted into the living body, and thus the position of the implant 100 can be prevented from being changed while being rotated.

Hereinafter, a process of performing a filling operation using the orthopaedic implant 100 according to the present invention will be described.

First, as shown in fig. 1, a charge is stored in the cylinder 11 of the injection device 10.

Then, the needle support 170 is first mounted to the needle 13 of the injection device 10 in which the packing is stored, and then the needle 13 is inserted into the insertion hole 120 of the body part 110 to be mounted. The needle 13 may be a needle 13 having a sharp portion at the tip end, or may be an existing Cannula (Cannula) used for the injection of a filler.

Then, the operator inserts the body 110 into the operation site by holding the injection device 10. In this case, a puncture portion may be formed in advance in the operation site, and the operation site may be inserted while directly puncturing the operation site by the body portion 110 according to the present invention.

When the insertion of the body 110 into the operation site is completed, the operator pressurizes the piston 12 of the injection device 10 to inject the filler into the hollow 111 of the body 110.

In this way, the filler is stored in the hollow portion 111 of the body 110, and the filler is discharged to the peripheral portion of the body 110 through the discharge holes 130 and filled in the skin tissue, thereby forming a volume. As a result, the filler uniformly filled in the peripheral portion including the main body portion 110 improves wrinkles of the skin tissue or repairs a depressed skin portion.

Thus, after the filler injection is completed, as shown in fig. 7, the operator separates the injection device 10 from the orthopaedic implant 100 with one hand while holding the grip 173 of the needle support 170 with the other hand, thereby completing the filler injection.

The orthopedic implant 100 according to the present invention as described above can uniformly supply the filler to the outside of the surface of the body 110 through the discharge hole 130 only by the operation of pressurizing the piston 12 without the careful operation of the operator with respect to the injection device 10, and can remarkably reduce the side effects of the operation such as bruising, swelling, or spasm of the skin since excessive operation of the needle 13 contacting the skin tissue is not required.

In addition, since the orthopaedic implant 100 according to the present invention is disposed in the central region of the operation site filled with the filler to form a bone structure, the volumetric form of the filler injected into the specific operation site can be continued for a long time.

In addition, the orthopaedic implant 100 according to the present invention can correctly maintain the position of the orthopaedic implant 100 during or after the operation by forming the hooking protrusion 140 or the groove 160 along the length or circumference, thereby enabling the operation satisfaction to be further improved.

As described above, the preferred embodiments of the present invention have been explained with reference to the accompanying drawings, but it will be apparent to those skilled in the art that various modifications or changes may be made to the present invention without departing from the spirit and scope of the invention as described in the appended claims.

Description of the reference numerals

10: the injection device 13: needle

100: orthopedic implant 110: main body part

120: insertion hole 130: discharge hole

140, 204, 340: the hooking protrusion 160: trough part

170: needle support

Claims (9)

1. A filler-injecting orthopaedic implant, comprising:

a hollow-shaped body portion made of a biocompatible material;

an insertion hole provided at one end of the body portion, into which a needle of an injection device is inserted;

a plurality of discharge holes arranged to be spaced apart from each other in a longitudinal direction of the body so that the liquid filler filled into the body through the insertion hole is discharged to the outside; and

and hooking protrusions formed to protrude from a surface of the body part and arranged to be spaced apart from each other in a longitudinal direction of the body part.

2. The filler injection-type orthopedic implant of claim 1, wherein the discharge holes are arranged at intervals around the surface of the body portion, and the discharge holes are arranged to be staggered with respect to each other along the length of the body portion.

3. The filler injection-type orthopaedic implant according to claim 1, wherein the discharge hole is formed to be smaller in size as being closer to the insertion hole side.

4. The filler-injecting orthopaedic implant according to claim 1, wherein the discharge holes are formed such that the closer to the insertion hole side, the larger the interval between the discharge holes adjacent to each other is.

5. The filler-injecting orthopaedic implant according to claim 1, wherein the hooking protrusion is formed such that a size of the hooking protrusion disposed on an inlet side of the insertion hole is larger than a size of the other remaining hooking protrusions.

6. The filler-injection-type orthopedic implant according to claim 1, further comprising a needle support member attached between the needle and the body portion in a state in which the body portion is inserted into a living body so that a part of the needle is exposed to the outside of the living body, and receiving an external reaction force opposite to a moving direction of the needle in a process of separating the needle from the body portion, and guiding the movement of the needle while maintaining a position of the body portion.

7. A filler-infusion-type orthopaedic implant, comprising:

a hollow-shaped body portion made of a biocompatible material;

an insertion hole provided at one end of the body portion, into which a needle of an injection device is inserted;

a plurality of discharge holes arranged to be spaced apart from each other in a longitudinal direction of the body so that the liquid filler filled into the body through the insertion hole is discharged to the outside; and

and a spiral hooking protrusion formed to protrude from a surface of the body part and having a certain pitch in a longitudinal direction of the body part.

8. The filler-injecting orthopaedic implant according to claim 7, wherein cut portions are formed at the spiral-shaped hooking protrusion, the cut portions being arranged to be spaced apart from each other along a spiral.

9. A filler-infusion-type orthopaedic implant, comprising:

a hollow-shaped body portion made of a biocompatible material;

an insertion hole provided at one end of the body portion, into which a needle of an injection device is inserted;

a plurality of discharge holes arranged to be spaced apart from each other in a longitudinal direction of the body so that the liquid filler filled into the body through the insertion hole is discharged to the outside; and

groove portions formed to be recessed from a surface of the main body portion and arranged to be spaced apart from each other in a longitudinal direction of the main body portion,

the discharge holes are formed in the groove regions.

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