KR101697654B1 - Separation device for tissue adhesion - Google Patents

Abstract

Disclosed is a device for separating adherent tissues. The device for separating adherent tissues is designed to removing disk tissues adhered to nerve roots. To this end, the device for separating the adherent tissues comprises: a catheter forming a moving path; and a wire protruding toward the front and the back from the moving path of the catheter. When the wire moves forward and backward outside body while some portions of the catheter is inserted into the body through a trocar, the disk tissues adhered on the nerve roots is removed by friction generated by contact with the wire. According to the present invention, it is possible to provide the device for separating adherent tissues, enabling elimination of disk tissues adhered on the nerve roots in a simple and quick way while treating lumbar herniated intervertebral disc.

Description

[0001] SEPARATION DEVICE FOR TISSUE ADHESION [0002]

The present invention relates to an adhesive tissue separator, and more particularly, to an adhesive tissue separator or separator that is configured to remove a disk tissue adhered to the vertebral nerve in a simple and rapid manner during the treatment of herniated disc herniation.

Lumbar herniated intervertebral disc (Lumbar disc herniated intervertebral disc) is a disease that causes back pain and nerve symptoms. As the intervertebral disc is aged, a circumferential fissure and a radial tear occur in the fibrous ring surrounding the edge of the intervertebral disc. Especially, when a heavy object is lifted to the side or excessive movement , The wrong posture, and accidents, the compression force and the salt power are received in the overcurved state, and the nucleus of the disc is no longer piled up in the fibrous ring, and it is caught between the radiative cracks and causes the disc herniation.

The prominent symptom of lumbar intervertebral disc herniation is pain in the legs and stiffness with back pain. The escaped discs stimulate the nerve roots and cause sensory abnormalities in the body parts where the nerve roots are distributed. It usually appeals to the senses and numbness, but it also manifests itself as hyperalgesia. Muscle weakness also weakens the fifth leg neuromuscular conduction when the foot is weakened, it becomes difficult to walk with the heel. In rare cases, if the protruding nucleus is large and centrally located, it may have feces function, sexual dysfunction, and paraplegia.

Treatment of disc herniation can be divided into conservative and operative methods.

Conservative therapies include absolute stabilization, taking anti-inflammatory drugs, pelvic traction, thermal therapy, ultrasound therapy, transcutaneous electrical nerve stimulation (TENS), massage, wearing corsets or orthoses, epidural corticosteroids epidural steroid injection, abdominal strengthening exercises, and proper back training.

Surgical treatment may be difficult to achieve because of the frequent recurrence of pain when the pain is unbearable, has not improved or progressed due to paraplegia, or if faded disorder occurs 6 to 12 weeks after conservative treatment. If there is any obstacle to the use of leisure time, it shall be carried out. The main symptom before surgery is lower limb pain caused by neuromuscular stimulation.

Surgical methods include conventional incisional surgery and minimal invasive surgery. Minimally invasive surgery is endoscopic discectomy, laser-assisted disc removal, percutaneous automatization, chemical pulp fusion, Electrotherapy, and decompression using a microscope.

As disclosed in Japanese Laid-Open Patent Application No. 2007-0024309, the laser-assisted disc removal method is a method in which the skin at the center of the waist is slightly cut, and then the vertebra bone is slightly removed using a high speed drill, and then the zoom lens image is enlarged using a microscope or an endoscope After confirming the surgical site, only a fragment of the disk fragment is selectively removed using a fine laser.

And, as disclosed in Patent Publication No. 1133947, a machine used for nucleation plasty produces a plasma field only in a local region around a wire-like catheter. When the ceramic is confirmed to be inside the disk, the machine is operated to generate a plasma field around the ceramic and gently move it gently. By doing so, the contents of the disc become buried therein, reducing the volume of the disc and reducing the pressure of pressing the nerve.

However, the disc herniation is a disease that occurs when the intervertebral disc (disk) existing between the vertebrae and vertebrae is damaged by some cause, and the jelly-like nucleus inside the intervertebral disc is escaped and directly presses the nerve root passing around, In addition, some of the nucleus pulposus may remain adherent to the nerve roots, especially if the disk tissue that was compressing the spinal nerve is removed or alleviated by treatment of the spinal nerve. Because it is a treatment method, there is a possibility of tissue adhesion of dissolving part and nerve root when dissolving disc. Disc residues adhered to the nerve roots after treatment have a great effect on the symptom of the pain felt by the patient and the rate of recovery.

(0001) Korean Patent Registration No. 1133947 (Registered on March 30, 2012) (0002) Korean Patent Publication No. 2007-0024309 (published on March 3, 2007)

It is an object of the present invention to provide a device for separating a cohesive tissue, which is capable of easily and rapidly separating disc tissue adhered to the nerve root during the treatment of herniated disc herniation to remove pain due to adhesion.

According to the present invention, there is provided an apparatus for separating a tissue adhering to a nerve root, the apparatus comprising: a catheter having a transfer path therein; And a wire protruding forwardly and rearwardly from a path of movement of the catheter, wherein when the catheter is partially inserted into the body through the trocar, advancing and retracting the wire outside the body causes pressure of the disk tissue adhered to the nerve root Is removed through friction and movement with the wire by the adhesive tissue separating device.

The catheter may be configured to form a drug infusion path in parallel with the moving path.

Both ends of the wire are protruded to the rear of the traveling path, and the middle part of the wire forms an annular shape and protrudes forward of the traveling path.

The traveling path may include a first traveling path in which one of the wires advances and retracts relative to an intermediate portion of the wire, and a second traveling path in which the other traveling forward and backward.

The front end of the catheter may be provided with a frictional means for rubbing against the intermediate portion of the wire during the forward and backward movement of the wire to remove the disk tissue adhering to the wire.

The rubbing means comprising: a body coupled to a front end of the catheter to form a passage for advancing and retracting the middle portion of the wire; And a plurality of brushes protruding from the passage toward the middle portion of the wire.

Wherein the moving path is in the form of a tube that is flexibly deformed, the catheter comprising: a head to which a front end portion of the moving path is coupled; A body to which a rear end of the traveling path is coupled; A tube that connects the head and the body and flexibly deforms; And deforming means for deforming the tube and the moving path by bending operation by a user's operation.

Wherein the deforming means comprises: elastic wires having both ends joined to the head; A friction pulley in which an intermediate portion of the elastic wire is in close contact with the circumferential surface; And a control knob formed on the body and adapted to rotate the friction pulley. When a user rotates the adjustment knob, both lengths of the elastic wire are increased or decreased based on the friction pulley, It can be made to be deflected in the same direction.

According to the present invention, the disc tissue adhered to the nerve roots is removed through friction by advancing and retracting the wire with the catheter partially inserted into the body through the trocar, so that the disk tissue adhered to the nerve root in the course of treating the herniated disc It is possible to provide an apparatus for separating a cohesive tissue which can be easily and quickly removed.

1 is a perspective view of an apparatus for separating a cohesive tissue according to an embodiment of the present invention;
Figure 2 is a side view of the coalescer tissue separation device of Figure 1;
3 is a use state view of the cohesive tissue separation apparatus of FIG.
4 is a view showing an apparatus for separating a cohesive tissue according to another embodiment of the present invention.
5 is a view showing an apparatus for separating a cohesive tissue according to another embodiment of the present invention.
FIG. 6 is a use state view of the cohesive tissue separation apparatus of FIG. 1; FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

The apparatus for separating adhered tissue according to the present invention is configured to easily and rapidly remove the disk tissue adhered to the nerve root during the treatment of the herniated disc herniation.

FIG. 1 is a perspective view of a cohesive tissue separating apparatus according to an embodiment of the present invention, FIG. 2 is a side view of the cohesive tissue separating apparatus of FIG. 1, FIG. 3 is a use state of the cohesive tissue separating apparatus of FIG. FIG. 5 is a view showing a bonded tissue separating apparatus according to another embodiment of the present invention, and FIG. 6 is a use state view of the bonded tissue separating apparatus of FIG. 1. FIG.

As shown in FIGS. 1 to 6, the apparatus for separating a tissue 10 of the present invention is adapted to remove disc tissue adhered to the nerve root R in a simple and rapid manner during the treatment of the herniated disc, 100 and a wire 200.

As shown in Figs. 1 to 3, the catheter 100 includes a moving path 101 through which the wire 200 moves, and is formed in the shape of a long cylindrical rod in one direction.

6, the catheter 100 is partially inserted into the body through the trocar (not shown) from the side where the wire 200 is formed in the annular shape to the side of the disk D and the nerve roots R Move. 1 to 4, the left side will be referred to as a front side and the right side will be referred to as a rear side with reference to the entering direction of the catheter 100. [ In Fig. 6, N means a nucleus and A means a fibrous tissue.

Although not shown in detail, the catheter 100 is grasped by the user in the outside of the body in a state where its front side is inserted into the body through the trocar. Therefore, it is preferable that the rear end of the catheter 100 is formed in a polygonal shape that is easy to grasp.

As shown in Figs. 1 to 3, the wire 200 is configured to rub against the disk tissue adhered to the spinal nerve, and protrudes forward and backward from the moving path 101 of the catheter 100, respectively. The wire 200 is made of a medical metal or a medical synthetic resin material.

3, the wire 200 has its both ends protruded rearward of the moving path 101, and the intermediate portion (hereinafter referred to as the " annulus 210 ") forms an annular shape, As shown in Fig. Since the wire 200 is integrally formed, when the both ends of the wire 200 are moved forward and backward from the rear of the moving path 101, the loop 210 is moved forward and backward.

During manufacture, the wire 200 is machined (plasticized, heat treated) to maintain a generally U-shaped configuration with respect to the ring 210. The wire 200 is flexibly deformed such that the annular shape of the ring 210 maintains its shape generally during use of the separating apparatus 10. [

The wire 200 is constrained to be spaced at a portion protruding frontward by the front end of the traveling path 101 so that the annular portion 210 is elastically bendingly deformed in accordance with the forwardly projected distance, (See FIGS. 3 (a) and 3 (b)). However, in a state of protruding at a certain distance from the moving path 101, a certain annular shape is formed.

Handles 220 are formed at both ends of the wire 200 at positions symmetrical to each other with respect to the ring 210. The handle 220 is formed of a resilient material such as rubber, silicon, or the like, which is stretched or contracted by external pressure, and is brought into close contact with the finger skin when the user holds the finger.

A plurality of grooves are formed in the handle 220 on opposite sides (hereinafter referred to as 'A side') and opposite sides (hereinafter referred to as 'B side'). The grooves are provided to increase the frictional force with the finger skin.

For ease of understanding, one of the wires 200 is referred to as an "A portion" with respect to the middle portion of the wire 200, and the other wire 200 is referred to as a " Quot; portion B ".

As shown in Fig. 3, the moving path 101 includes a first moving path 102 and a second moving path 103. As shown in Fig. The A portion advances and retreats within the first transfer path 102, and the B portion advances and retreats within the second transfer path 103. When the moving path 101 is divided, the A portion and the B portion are prevented from being twisted when the wire 200 is advanced or retracted, so that the annular direction is kept constant.

6, the apparatus 10 for separating a cohesive tissue according to the present invention comprises a catheter 100 having a front end portion of a catheter 100 inserted into a disc D (not shown) And the wire 200 is advanced and retracted outside the knee 220 so that the disc structure adhered to the nerve roots R is prevented from friction with the ring 210 Is removed away.

As shown in FIGS. 1 and 3, both end portions of the wire 200 are provided in a state in which they are spaced from each other at a predetermined distance in a state of protruding rearward of the moving path 101. The user presses the B surface with the thumb and index finger to push the A part and the B part forward and backward simultaneously, or only the A part or the B part is moved forward by holding only one knob 220 with the thumb and index finger And backward.

The user can variously form the annular shape formed by the selective operation of the knob 220 while the annular portion 210 is advanced and retracted forward of the catheter 100. [ That is, when the user pushes the B surface with the thumb and index finger to push the A part and the B part forward and backward simultaneously with the A side in close contact with each other, the ring part 210 moves toward the A side B portions are formed symmetrically with each other and rubbed against the disk tissue adhered to the nerve root (R).

On the other hand, when the user grips only one knob 220 with the thumb and index finger and advances and retreats only the A portion or the B portion, the ring portion 210 forms an asymmetric shape between the A portion and the B portion, Lt; RTI ID = 0.0 > a < / RTI >

As described above, the user can selectively form the annular shape formed by the forward and backward movement of the annular part 210 in front of the catheter 100 through the selective operation of the grip 220, By finely adjusting the frictional force and the direction of friction between the disc tissues, the disc tissue adhering to the nerve root (R) is removed more quickly.

As shown in Figs. 1 and 2, a drug infusion passage 104 is formed in the catheter 100 side by side with the transfer passage 101. As shown in Fig. At the rear end of the catheter 100, an injection port 105 for injecting the drug into the drug injection path 104 is formed. A device such as a syringe for injecting a drug is connected to the injection port 105 through a tube 130. As shown in FIG. 6, the drug injected into the injection port 105 is discharged to the front of the catheter 100 through the drug injection path 104, and is sprayed on the disk D and the nerve root (R) site. The drug may be an anti-adhesion agent, an analgesic agent, an anti-inflammatory agent, or the like.

The disc structure may be buried in the ring 210 in the process of the ring 210 being rubbed against the disc structure. The disc structure adhered to the annular portion 210 is required to be rapidly removed because the disc structure of the annular portion 210 may be reduced to reduce the removal efficiency of the disc tissue or re-adhered to the nerve root (R).

4, according to another embodiment of the present invention, a device 210 for separating a tissue for adhesion may be provided at a front end portion of a catheter 100 in the course of advancing and retracting the wire 200, A friction means 106 for removing the adhered disc structure can be formed.

The rubbing means 106 comprises a body 107 and a brush 108.

The body 107 is coupled to the front end of the catheter 100 to form a passage through which the collar 210 advances and retreats. In the process of advancing and retracting the wire 200, the loop 210 is pulled into the passage of the body 107 or pulled back forward. The body 107 may be detachably coupled to the front end of the catheter 100.

A plurality of brushes 108 are provided and protrude from the inner surface of the passage toward the annular portion 210. In the process of advancing and retracting the wire 200, the loop 210 is pulled into the passage of the body 107 or pulled forward again to rub against the disk tissue adhering to the nerve roots R, The disc structure attached to the disc 210 is removed from the ring 210 by friction of the brush 108 inside the passage. The brush 108 may be made of synthetic fibers that are elastically deformed.

The catheter 100 inserted into the body through the hole of the trocar (not shown) has a limited rotation angle around the hole of the trocar. However, if the disc tissue is adhered to various regions of the nerve root (R), the preferred angle at which the ring 210 rubs against each surface of the nerve root (R) under optimal conditions may vary.

5, according to another embodiment of the present invention, the apparatus for separating a tissue for attachment 30 is configured such that the catheter 100 is flexibly deformed by a user's operation, The backward direction can be variously formed. For the sake of easy understanding, the description of the same constitution as the embodiment of the present invention will be omitted.

The catheter 100 comprises a head 110, a body 120, a tube 130 and a deforming means 140. The head 110 forms the front end of the catheter 100 and the body 120 forms the rear end of the catheter 100. The tube 130 is in the form of a flexible, 120). 5 (a), both ends of the tube 130 may be coupled to the head 110 and the body 120 by screwing or the like.

5 (a), the transfer path 101 and the drug infusion path 104 are formed in the shape of a tube that is elastically and flexurally deformed so that both ends are prevented from coming into contact with the head 110 and the body 120, Bonding or the like. In the head 110 and the body 120, the entrance and the exit of the transfer path 101 and the drug infusion path 104 are formed. 5 (a), the moving path 101 and the drug infusion path 104 are shown or omitted for the sake of detailed illustration of the deforming means 140. [

The deforming means 140 is a structure for bending and deforming the tube 130, the moving path 101 and the drug infusion path 104 by the user's manipulation. The elastic wire 141, the friction pulley 142, (143).

The elastic wire 141 is elastically and flexibly deformed, and both ends thereof are coupled to the inner surface of the head 110. As shown in Fig. 5 (a), both ends of the elastic wire 141 are joined at positions opposite to each other on the inner surface of the head 110. [ Although not shown, both ends of the elastic wire 141 may be threaded and screwed to the inner surface of the head 110. [

The friction pulley 142 is rotatably coupled to the body 120 to transmit the rotational force of the adjustment knob 143 to the elastic wire 141. 5 (a), the middle portion of the elastic wire 141 is in close contact with the circumferential surface of the friction pulley 142. As shown in Fig. A guide 144 may be provided on the outside of the circumferential surface of the friction pulley 142 for urging the elastic wire 141 against the friction pulley 142.

5 (b), the adjustment knob 143 is rotatably coupled to the outer surface of the body 120, as a configuration for rotating the friction pulley 142. As shown in Fig. The central axis of the adjustment knob 143 is engaged with the central axis of the friction pulley 142 and rotates integrally therewith so that the rotational force of the adjustment knob 143 is transmitted to the friction pulley 142.

The body 120 may be provided with a control knob 143 by elastic recovery force of the elastic wire 141 and a leaf spring S for preventing rotation of the friction pulley 142. The leaf spring S is brought into close contact with the adjustment knob 143 or the irregular portion formed on the circumferential surface of the friction pulley 142 so that the rotation of the adjustment knob 143 and the rotation of the friction pulley 142 due to the elastic recovery force of the elastic wire 141 .

When the user rotates the adjustment knob 143, the middle portion of the elastic wire 141 is rotated by the friction pulley 142 and both lengths of the elastic wire 141 are increased or decreased with respect to the friction pulley 142, The tube 130 and the traveling path 101 are flexibly deformed in the same direction (on the side where the length of the elastic wire 141 is shortened with respect to the friction pulley 142) interlocking with the rotation direction of the adjustment knob 143 .

Therefore, even when the disc tissue is adhered to various parts of the nerve roots R, the ring part 210 can be advanced and retracted at a preferable angle of friction with each surface of the nerve roots R under optimum conditions, It is possible to more effectively remove the disk tissue adhering to the nerve root (R).

According to the present invention, the disc tissue adhered to the nerve roots is removed through friction by advancing and retracting the wire with the catheter partially inserted into the body through the trocar, so that the disk tissue adhered to the nerve root in the course of treating the herniated disc It is possible to provide an apparatus for separating a cohesive tissue which can be easily and quickly removed.

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 embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

10,20,30: Adhesive tissue separator
100: catheter
101: traveling path 102: first traveling path
103: Second transfer path 104: Drug injection path
105: Inlet port 106: Friction means
107: Body 108: Brush
110: Head 120: Body
130: tube 140:
141: Elastic wire 142: Friction pulley
143: Adjustment Knob 144: Guide
200: wire
210: collar 220: handle
R: nerve root D: disk
N: Receptacle A: Fibers

Claims (8)

Claims 1. A cohesive tissue separator device for removing disk tissue adhered to a nerve root,
A catheter having a transfer path therein; And
And a wire protruding forward and backward from the path of movement of the catheter,
When the catheter is partially advanced into the body through the trocar and the wire is advanced and retracted outside the body, the disk tissue adhered to the nerve root is removed through friction with the wire,
Both ends of the wire are projected rearward of the traveling path,
The intermediate portion of the wire forms an annular shape and protrudes forward of the traveling path,
Wherein a frictional means is formed at a front end portion of the catheter for rubbing against a middle portion of the wire in a process of advancing and retracting the wire to remove disc tissue adhering to the wire. The method according to claim 1,
Wherein the catheter is formed with a drug infusion path in parallel with the moving path. delete The method according to claim 1,
Wherein the traveling path includes a first traveling path in which one of the wires advances and retracts relative to an intermediate portion of the wire and a second traveling path in which the other traveling forward and backward. delete The method according to claim 1,
The friction means comprises:
A body coupled to a front end of the catheter to form a passageway for advancing and retracting the middle portion of the wire; And
And a plurality of brushes protruding from the passage toward the middle portion of the wire. The method according to claim 1,
Wherein the moving path is formed in a tube shape which is flexibly deformed,
The catheter includes:
A head coupled to a front end of the traveling path;
A body to which a rear end of the traveling path is coupled;
A tube that connects the head and the body and flexibly deforms; And
And deforming means for flexibly deforming the tube and the moving path by an operation of a user. 8. The method of claim 7,
Wherein the deforming means comprises:
An elastic wire having both ends coupled to the head;
A friction pulley in which an intermediate portion of the elastic wire is in close contact with the circumferential surface; And
And a control knob formed on the body and rotating the friction pulley,
Wherein when the user rotates the adjustment knob, both lengths of the elastic wire are increased or decreased on the basis of the friction pulley so that the tube and the moving path are deflected in the same direction.

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