KR101555630B1 - Device for holding and injecting implants - Google Patents

Abstract

The present invention relates to a device for storing and injecting an implant, provided to: store the implant used for the replacement of nucleus pulposus of an intervertebral disk not to expand; and easily inject the implant into an implant-exclusive injection device when being injected into a defective portion of the intervertebral disk. To achieve the same, the device of the present invention comprises: a holder assembly in which a tubular implant holder with a diameter capable of inserting and storing the implant inside is embedded, and a connection unit for joining/separating the tubular implant holder to/from an exclusive insertion device is formed on a front end of a body, and which directly joins or separates a front end of the tubular implant holder to/from the exclusive insertion device with the connection unit; a stylet/holder connecting cap which locates a rear end of the holder assembly and a front end of a holder stylet to be in a line and transmits a force of an operator applied to the holder stylet to the holder assembly when the implant is injected into an affected area through connection with the exclusive insertion device; and a holder stylet which has a outer diameter capable of being inserted into the tubular implant holder, discharges the implant inside the tubular implant holder using the force applied from the outside by the operator, and compresses the implant to be inserted into the affected area on through the exclusive insertion device. Accordingly, the present invention facilitates the treatment by injection, thereby restoring a function of the intervertebral disk while minimizing a scar.

Description

[0001] The present invention relates to a device for holding and injecting implants,

The present invention relates to an implant storage and implanting apparatus, and more particularly, to an implant storage and implantation apparatus capable of storing an implant, which is a implantable material for replacement of a nucleus portion of an intervertebral disc, without swelling, The present invention relates to an implant storage and implanting device capable of easily implanting an implant by being connected to an insertion device, thereby minimizing the number of injuries and restoring the disk function by minimally invasive surgery.

In general, an intervertebral disc (IVD) is a complex that transmits or dampens the compression, torsion, and bending of the vertebrae. The intervertebral disc includes three components, such as nucleus pulposus, annulus fibrosus, and end- .

The nucleus pulp is resistant to external forces such as compressive force and bending force, and it is a hydrogel-like substance which contains enough water. 70-90% of the water content is composed of water, 40-65% of the dry weight is proteoglycans, Is composed of an extracellular matrix such as collagen, and the outermost fibroblast, which is the main cell group of fibroblast, is a component surrounding the nucleus pulposus, and a large amount of type 1 collagen is distributed, It is responsible for the mechanical properties, and the end plate covers the upper two components and connects with the vertebral body.

The nucleus pulposus is a tissue that is difficult to regenerate itself even if the tissue is damaged because the blood is not supplied. If the water content gradually decreases due to degeneration or if the nucleus disappeared from the fibrous ring due to any cause (such as herniation It becomes harder and irritates the nerves by dehydration, and degeneration occurs which causes lumbar pain.

In recent years, various materials having viscoelastic properties specific to polymers that can be safely used overcoming disadvantages of prior artificial disc treatment materials or nucleus replacement materials for disc treatment have been developed. Among them, And absorbs or emits moisture in a load state, and since the mechanical properties at this time are also appropriate, it has the most similar properties to natural nucleus pulposus.

Alternative materials such as hydrogels have the advantage of being able to be treated through minimal wounds since only the disc nucleus of the problem can be removed without removing the entire portion of the disc and it can be filled in the space instead of the natural nucleus, It has the advantage of restoring the disk function to some extent.

Therefore, although the artificial disc substitution technique and various devices have been introduced and developed in order to supplement the nucleus pulposus of the vertebrae by inserting the hydrogel in the center position of the fibrous ring, It is necessary to research and develop localization equipment with market competitiveness.

In this regard, Korean Patent Registration No. 10-1059338 (registered on Aug. 18, 2011, hereinafter abbreviated as "Patent Document 1") discloses an intervertebral disc having an in- ) Are known in the art.

According to Patent Document 1, the flow of the flowable biomaterial into the mold is controlled in accordance with the first operating parameter, at least one injection condition is monitored, and the flow of the flowable biomaterial reaches at least one threshold level Wherein the second operating parameter is controlled in response to the infusion condition and the second operating parameter optionally includes allowing a portion of the biomaterial to be retained or flowable for at least a portion of curing the flowable biomaterial to be ejected from the mold , Allowing intervertebral disc replacement partially or totally.

Korean Patent Laid-Open No. 10-2008-0012867 (published on Feb. 12, 2008, hereinafter abbreviated as "Patent Document 2") discloses a method of using a catheter holder to fix a transferring mechanism to a patient in a releasable manner, a technique and an apparatus for filling an in situ curable biomaterial into an intervertebral disc space are known.

According to Patent Document 2, by fixing the catheter to the catheter holder, the insertion depth of the catheter into the disc space can be precisely controlled, and the catheter holder can insert the insertion of the selective mold into the disc space formed by the fiber- Selectively assisted through the incision to prevent the mold from being inserted into or out of the disk space during the injection of the polymer.

In addition, US Patent Application No. US / 08118874 (registered on Feb. 21, 2012; hereinafter abbreviated as "Patent Document 3") describes a substitution system or supplement (a replacement agent or a nucleus pulposus using a hydrogel) Is known.

According to Patent Document 3, physiologically hydrated hydrogel implants can be used to replace or supplement the nucleus pulposus in the spinal disc by artificial insertion of the nucleus of the vertebra.

KR 10-1059338 B1 Registered on August 18, 2011 KR 10-2008-0012867 A US 8118874 B1 Registered February 21, 2012

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an implantable implantable implantable material capable of replacing a nucleus portion of an intervertebral disc, To provide an implant storage and implanting device capable of easily implanting implants in connection with an implant-only insertion device when inserting into a defect-deficient site, and enabling easy operation by injection, thereby restoring the disk function with minimal scratches .

In order to achieve the above object, according to one embodiment of the present invention, a tube-shaped implant holder having a diameter capable of storing an implant is inserted, and a connection portion for assembling / disassembling with a dedicated insertion mechanism is formed at the distal end of the body, A holder assembly for directly connecting or disconnecting the distal end portion of the tubular implant holder to or from the special insertion mechanism by assembly / separation operation with the insertion mechanism, a rear end portion of the holder assembly and a distal end portion of the holder stylet, A stylet / holder connection cap for transferring the force of a practitioner applied to the holder stylet to the holder assembly when the implant is inserted into the affected part through the connection with the implant, and an outer diameter insertable into the inside of the tubular implant holder. When the implants inside the tube-type implant holder are discharged by the applied force An implant storage and injection device comprising a holder style scarlet pressing so that it can be inserted into the affected area through a dedicated mechanism.

The apparatus for storing and injecting an implant according to an embodiment of the present invention further includes a luer cap which is assembled or separated at a connection portion of the holder assembly and protects the implant from swelling in contact with moisture in the air, It is possible.

The holder stylet may further include a pushing knob at the rear end of the body in the implant storage and delivery device according to each embodiment of the present invention.

 The holder assembly in the implant storage and delivery device according to each of the embodiments of the present invention is characterized in that a first screw portion for assembling or separating with a dedicated insertion mechanism by screwing is formed on the inner peripheral surface of the connection portion.

The holder assembly in the implant storage and implanting apparatus according to each of the embodiments of the present invention is configured such that a part of the body of the tubular implant holder is removed so that the insertion of the implant can be easily guided or supported when the implant is inserted into the tip of the tubular implant holder And a tip injection port in which an inner peripheral surface of the body is exposed to the outside is formed.

The stylet / holder connection cap in the implant storage and delivery device according to each of the above embodiments of the present invention is made of a silicone material capable of providing a frictional force for pressing the holder stylet, The stylet fitting portion for inserting the tip portion of the holder stylet into the fitting portion and the stylet fitting portion for inserting the tip end portion of the holder stylet is provided in the central portion of the body with one assembly hole and the holder assembly through the two fitting portions of the assembly hole and the holder stilet, And the tip of the stylet is inserted and guided into the inside of the tubular implant holder in a straight line.

In the implant storage and implanting apparatus according to each of the embodiments of the present invention, the holder stylet is formed of a body having a length longer than the length of the tubular implant holder, and is inserted and guided into the inside of the tubular implant holder So that the implant stored in the distal end portion of the tubular implant holder is discharged and pressed so as to be transmitted to the special insertion mechanism side.

The luer cap in the apparatus for storing and injecting implants according to each embodiment of the present invention is characterized in that the luer cap is formed on the outer circumferential surface thereof with a second screw part for assembling or separating to the connection part of the holder assembly by screwing.

According to the present invention, an implant, which is a graft material for replacement of a disc portion of an intervertebral disc, can be easily kept in contact with air while being easily connected to an implant-dedicated insertion device at the time of inserting it into a patient's disc- Therefore, it is advantageous in that it can be easily manipulated through minimally invasive surgery, thereby restoring the disk function with only a minimum of scratches.

1 is an assembled perspective view illustrating the overall configuration of an implant storage and implanting apparatus according to a preferred embodiment of the present invention.
2 is an exploded perspective view of FIG.
3A to 3C are detailed views of the main part of the present invention
4 (a) to 4 (d) are diagrams illustrating the use of a stepwise operation using the implant storage and implanting apparatus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the overall structure and operation of an implant storage and implanting apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term in order to describe its invention in the best possible way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention. Therefore, it should be understood that the embodiments described herein and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and that various equivalents and modifications may be substituted for them at the time of the present application shall.

FIG. 1 is a perspective view illustrating an implant storage and implanting apparatus according to a preferred embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, FIGS. 3a to 3c are detailed views of essential parts of the present invention, An implant storage and delivery device according to one embodiment of the present invention is embodied in a form including a holder assembly 10, a stylet / holder connection cap 20, and a holder stylet 30, Another embodiment is further embodied in a form that further includes the step (40).

The holder assembly 10 is made of a cylindrical body as illustrated in FIG. 3A. The holder assembly 10 has a cylindrical shape having a shape capable of storing a stick or a cylindrical implant 1 inserted therein, The implant holder 11 is inserted in the longitudinal direction, and a connecting portion 12 for assembling / disassembling the implant insertion mechanism 2 is formed at the distal end of the body. Therefore, the holder assembly 10 is directly connected to the dedicated insertion mechanism 2 by connecting the distal end portion of the tubular implant holder 11 by the assembling / separating operation with the dedicated insertion mechanism 2 (see Fig. 4) Or separated.

The holder assembly 10 also has a first threaded portion 12a formed on the inner circumferential surface of the connection portion 12 for assembling or separating with the dedicated insertion mechanism 2 by screwing and is used only for implanting a stick or cylindrical implant And it is simple and easy to assemble when connected to the insertion mechanism (2).

In addition, the holder assembly 10 may be configured such that a part of the body of the tubular implant holder 11 is removed so that the insertion of the implant can be easily guided or supported at the distal end of the tubular implant holder 11 and the inner circumferential surface of the body is exposed to the outside A tip injection port 11a may be formed. When the tip injection hole 11a is inserted into the tubular implant holder 11 for insertion into a preformed stick or cylindrical implant 1, the insertion operation can be guided by the tip insertion hole 11a, .

The stylet / holder connection cap 20 is a silicone material capable of providing a friction force for the assembly between the holder assembly 10 and the holder stylet 30 and for pressing the holder stylet 30 as illustrated in Figure 3B And the force of the operator applied at the rear end of the holder stylet 30 when the implant 1 is inserted into the ring portion through the connection with the dedicated insertion mechanism 2 is transmitted to the tubular implant holder 11 of the holder assembly 10, To the inside.

The stylet / holder connection cap 20 is mounted to a holder assembly 10 (not shown) to assemble the two staples in a straight line so that the holder stylet 30 can be inserted into the tubular implant holder 11 of the holder assembly 10. [ And the outer diameter of the holder stylet 30 are formed in the longitudinal direction at the center of the body. At this time, the assembly fitting portion 21a for inserting the rear end of the holder assembly 10 and the stylet fitting portion 21b for inserting the tip portion of the holder stylet 30 are formed in the single assembly through- And these two fitting portions 21a and 21b are formed so as to have the same axis center although they have different diameters. The stylet / holder connection cap 20 is thus fixed to the holder stylet 30 by the interference fit assembly of the holder assembly 10 and the holder stylet 30 through the two fitting portions 21a, 21b of the assembly through- Can be inserted into and guided into the inside of the tubular implant holder 11 of the holder assembly 10 in a straight line.

The holder stylet 30 is formed with an outer diameter that can be inserted into the tubular implant holder 11 longitudinally inserted into the axial center of the holder assembly 10 and is longer than the length of the tubular implant holder 11. [ And is inserted from the rear end side of the tubular implant holder 11 by a force externally applied by the practitioner, and then the stick or cylindrical implant 1 stored in the holder is discharged to its distal end portion, 2 so as to be inserted into the affected part.

The holder stylet 30 may have a cylindrical pushing knob 30a at the rear end of the body to facilitate gripping and pressing of the stylet by a practitioner. When a force is applied to the pushing knob 30a The holder stylet 30 can be inserted and guided into the interior of the tubular implant holder 11 with the stylet / holder connection cap 20 as the intermediate medium (or support) The implant 1 stored in the distal end portion of the tubular implant holder 11 is easily discharged to be transmitted to the side of the special insertion mechanism 2.

The luer cap 40 may be assembled or disassembled into the connecting portion 12 of the holder assembly 10 as required and assembled to the connecting portion 12 of the holder assembly 10 when not in use, Protects against swelling by preventing contact with moisture, and is separated and removed from connection 12 of holder assembly 10 during use. The luer cap 40 includes a first threaded portion 12a formed on an inner circumferential surface of the connecting portion 12 so as to be assembled or detached from the connecting portion 12 of the holder assembly 10 by screwing, A second threaded portion 40a is formed on the outer peripheral surface of the body.

4 (a) to 4 (d) are diagrams illustrating an example of a stepwise operation using the implant storage and implanting apparatus according to the present invention, and the operation and operation of the implant storage and implanting apparatus according to the present invention The following is an explanation of the effect of the action.

First, a tubular implant holder 11 having a certain length and having an inner space of a shape and a diameter capable of holding the implant 1 in the form of a stick or a cylinder is inserted in the longitudinal direction at the center of the shaft of the body so that the holder assembly 10 .

Next, the rear end portion of the holder assembly 10 is press-fitted into the assembly fitting portion 21a of the assembly through-hole 21 formed in the body of the stylet / holder connection cap 20 made of a silicone material, Then, the tip end portion of the holder stylet 30 is press-fitted into the stylet fitting portion 21b of the assembly through-hole 21 in a forced fit manner. At this time, since the assembly fitting portion 21a and the stylet fitting portion 21b provided at the center of the body of the assembly through-hole 21 are formed to have the same axial center, the holder assembly 20a connected by the stylet / The distal end portion of the holder stylet 30 (opposite to the portion where the pushing knob 30a is formed) can be assembled so that the tubular implant holder 11 of the holder stylet 10 and the holder stylet 30 are positioned on a straight line. Is inserted into the tubular implant holder 11 at the rear end thereof so as to be insertable therein.

In the state where the holder assembly 10 and the holder stylet 30 are connected by the stylet / holder connection cap 20 as described above, the distal end of the tubular implant holder 11 is provided with a stick or cylindrical shape The implant 1 is inserted manually. At this time, the operator places the implant in the tip injection port 11a formed at the distal end of the tubular implant holder 11 and manually inserts the implant by being guided by the tip, whereby the stick or cylindrical implant 1 can be conveniently and easily inserted into the tubular implant holder 11 So that it can be inserted and stored in the inside of the housing 11.

When the implant 1 is inserted and stored in the tubular implant holder 11 as described above, the connection portion 12 formed at the distal end of the holder assembly 10 when the implant storage and implanting apparatus according to the present invention is not used, The second screw portion 40a of the luer cap 40 can be easily assembled and stored by screwing the first screw portion 12a of the luer cap 40. [

In order to use the implant storage and delivery device according to the present invention in the above-described assembled state, the luer cap 40 assembled to the connection part 12 of the holder assembly 10 is removed from the screw connection, The head portion 2a of the exclusive insertion mechanism 2 is screwed into the first screw portion 12a formed in the connection portion 12 of the holder assembly 10 as illustrated in Figure 4 (a) The distal end portion of the tubular implant holder 11 is directly connected to the dedicated insertion mechanism 2 by operation.

The stylet / holder connection cap 20 made of a silicone material is inserted into the holder 20 in a state in which the distal end portion of the tubular implant holder 11 of the holder assembly 10 is directly connected to the head portion 2a of the insertion mechanism 2, When the operator applies force to the pushing knob 30a formed at the rear end of the holder stylet 30 as the intermediate medium (or the support), the force of the practiced pusher is applied to the holder assembly 10, So that it can be inserted into the tubular implant holder 11 of the implantable medical instrument. In this state, when the practitioner continues to apply the pushing force to the pushing knob 30a, the holder stylet 30 can be continuously guided along the inside of the tubular implant holder 11 of the holder assembly 10 toward its distal end 4 (b), the holder stylet 30 formed of a body longer than the length of the tubular implant holder 11 is stored in the distal end portion of the tubular implant holder 11, , It can be discharged to the side of the dedicated insertion mechanism 2 from the tip end side as illustrated in Fig.

When the implant is completely drained from the distal end of the tubular implant holder 11 according to the present invention to the dedicated insertion mechanism 2, the first screw portion 12a formed in the connection portion 12 of the holder assembly 10 is inserted, The operation of separating the head portion 2a of the mechanism 2 allows the implant storage and implantation apparatus according to the present invention to be carried out from the head portion 2a of the dedicated insertion mechanism 2 as illustrated in Fig. And then inserted into the affected part through the dedicated insertion mechanism 2 as illustrated in FIG. 4 (d) using a separate auxiliary insertion mechanism 3.

The above-described apparatus for storing and injecting implants according to the present invention includes an operation for inserting and storing the implant 1 into the tubular implant holder 11 of the holder assembly 10, To the head portion 2a of the dedicated insertion mechanism 2 by applying a force to the pushing knob 30a of the holder stylet 30 so that the implant 1 is discharged to the side of the dedicated insertion mechanism 2 It goes without saying that the operation of repeating the operation may be repeated one or more times depending on the necessity or the type of treatment or the material to be implanted.

According to the implant storage and implanting apparatus of the present invention, it is possible to conveniently insert the implant used in the replacement of the disc portion of the disc into the holder, thereby providing an advantage of being convenient for use by the practitioner, It is possible to easily implant the implant by simply connecting to the implant-dedicated insertion device when inserting the defect into the disc-deficient site, thereby facilitating the operation of the implant, thereby providing an advantage that only the minimum wound is restored and the disc function can be restored .

In addition, according to the present invention, since the luer cap which can be assembled or detached can protect the implant from being brought into contact with air and not swell, the implant can be easily stored This provides the advantage.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modification is possible. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

1: implant 2: dedicated insertion tool
2a: head part 3: auxiliary insertion mechanism
10: holder assembly 11: tubular implant holder
11a: Tip inlet 12: Connection
12a: first threaded portion 20: stylet / holder connection cap
21: Assembly through hole 21a: Assembly fitting part
21b: Stretch fitting part 30: Holder stylet
30a: pressure knob 40: luer cap
40a: second screw portion

Claims (8)

A tubular implant holder having a diameter capable of holding an implant of a stick or a cylindrical shape is inserted and a connection part for assembling / disassembling with a dedicated insertion mechanism is formed at the distal end of the body, A holder assembly for directly connecting or disconnecting a distal end portion of the tubular implant holder to a special insertion mechanism by a separating operation;
A method of assembling the rear end of the holder assembly and the tip end of the holder stylet in a straight line to transmit the force of the operator applied to the holder stylet to the holder assembly when the implant is inserted into the affected part through connection with the special insertion mechanism LET / holder connection cap;
A holder stylet formed at an outer diameter insertable into the tubular implant holder and configured to push the implant inside the tubular implant holder by a force externally applied by a practitioner so as to be inserted into the affected part through a special insertion mechanism; And an implanting device for implanting the implant. The method according to claim 1,
Further comprising: a luer cap assembled or detached from the connection portion of the holder assembly to protect the implant from swelling in contact with moisture in the air. 3. The holder assembly of claim 1 or 2,
Wherein a first threaded portion for assembling or separating with a dedicated insertion mechanism is formed on the inner peripheral surface of the connecting portion by screwing. 3. The holder assembly of claim 1 or 2,
Wherein a tip end injection port is formed in which a part of the body of the tubular implant holder is removed and an inner circumferential surface of the tubular implant holder is exposed to the outside so that the insertion of the implant can be easily guided or supported when the implant is inserted into the distal end portion of the tubular implant holder. And an injection device. 3. The stethoscope according to claim 1 or 2, wherein the stylet /
It is made of a silicone material that can provide the friction force for pressing the holder stylet,
A holder assembly for inserting a rear end of the holder assembly and a stylet fitting portion for inserting a tip end portion of the holder stylet are provided in a single assembly hole at a central portion of the body so that the holder assembly through the two fitting portions of the assembly hole and the holder style And the tip of the holder stylet is inserted into and guided into the inside of the tubular implant holder by a forced fit assembly of the holder. 3. The holder stylet according to claim 1 or 2,
Further comprising a pushing knob at the rear end of the body. 3. The holder stylet according to claim 1 or 2,
The implant is stored in the distal end of the tubular implant holder by the operation of being inserted into and guided into the tubular implant holder and discharged to the side of the special insertion device So that the implant can be inserted into the implant. The luer cap according to claim 2,
Wherein a second threaded portion is formed on the outer circumferential surface to be assembled or separated from the connection portion of the holder assembly by screwing.

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