KR20150028568A - Dissection device for tissue - Google Patents

Abstract

The present invention relates to a tissue dissection device and, more specifically, to a tissue dissection device which can more easily dissect tissues such as blood vessel, nerve, deferent drift, and oviduct through an image of ultrasound wave or endoscope, while dissecting tissues from surrounding tissues without damages on the tissues. The tissue dissection device of the present invention is characterized by comprising a linearly reciprocating tube formed in multiple stages to adjust the length; and a connection member formed on the front end of the tube for a dissection tool to be connected.

Description

[0001] Dissection device for tissue [0002]

More particularly, the present invention relates to a tissue exfoliation device capable of easily separating tissues such as blood vessels, nerves, vas deferens, and fallopian tubes at the time of surgery using an ultrasound image or an endoscope, And dissecting the tissue from surrounding tissues.

Medically, tissue refers to a group of cells in which various types of cells gather to maintain a certain shape and perform certain functions, such as blood vessels, nerves, vas deferens, fallopian tubes, bones, and adipose tissue do.

During surgery, certain tissues must be separated from surrounding tissues to perform a specific procedure. Separation of specific tissues from surrounding tissues is called dissection.

In order to peel off a specific tissue as described above, a method of peeling off the tissue by moving it up, down, left, and right around a specific tissue using a device such as a surgical callee is used. In this case, There is a high risk of being damaged.

After the removal, the specific procedure is performed in most cases, and ligation refers to the operation of tying up the dissected tissue.

In order to ligate the peeled tissue, the ligation chamber is generally inserted through the peeled space to surround the peeled tissue. In order to easily and safely perform the peeling and ligation process, the peeling and ligation The process of widening the space between the organization and the surrounding organization must be accompanied.

Meanwhile, Korean Patent Registration No. 10-0828135 discloses a biopsy stripper for an endoscope as an embodiment of such a peeling tool. The main technical structure of the biopsy stripper is as shown in Fig. 1, in which a distal end forms a curved surface (12) formed integrally with the head portion (12), an endoscope passage portion through which the endoscope passes, and a body (10) having a guide rail; A handle 20 coupled along the longitudinal direction of the main body 10 so that the force of the operator is aligned with the advancing direction of the peeling; And an adapter (30) assembled at the other end of the handle (20) and passing through the endoscope as a center.

However, since the access to the surgical site is performed only linearly, it is difficult to secure a visual field and it is difficult to access the removal tool, so that a secondary There is a problem in that it is necessary to peel off the surrounding tissue, thereby damaging surrounding tissues.

Accordingly, it is necessary to develop a peeling apparatus that can peel off the tissue without any damage to the surrounding tissues and the specific tissue to be peeled, and at the same time, place the ligation chamber in the peeled space, thereby enabling the peeling of the tissue professionally.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and an object of the present invention is to provide a tissue detachment device for facilitating detachment of tissues such as blood vessels during surgery through an ultrasound image or an endoscope .

In addition, the present invention is intended to expand the space between the tissue to be peeled and the surrounding tissue by using the pressure of the fluid, and to enlarge the space between the tissues by the expanding member that expands by the hydraulic pressure, It is another object of the present invention to provide a tissue detachment device capable of safely performing a detachment operation without damaging tissues and surrounding tissues.

In addition, the present invention minimizes the skin incision site required for tissue exfoliation, and allows the external tissue located at the point where it is difficult to reach in a straight line due to the curved tube of multiple pieces, and the tissue to be exfoliated, It is an object of the present invention to provide a tissue peeling apparatus which can easily peel off a tissue.

According to an aspect of the present invention,

The tissue peeling apparatus includes a tube for linear reciprocating movement, which is divided into a plurality of stages so as to be adjustable in length, and a connecting member provided at a front end of the tube and connected with a peeling tool.

In this case, the peeling tool is a fluid injection tube injected through the tube and the connecting member to inject fluid around the tissue to be peeled off.

Here, one or more spray holes may be formed at the front end of the fluid spray pipe.

In addition, a needle is provided at a front end of the fluid injection pipe.

In addition, an expansion member, which is expanded and contracted according to whether a fluid ejected from the injection hole is supplied, is coupled to the outside of the front end of the fluid injection pipe.

In addition, the front end of the connecting member may be curved, and a through hole may be formed in the center of the front end to allow the fluid ejecting tube to pass therethrough. The diameter of the connecting member may be larger than the diameter of the tube.

The tube is made of an elastic material.

On the other hand, the tube has an arc shape.

In this case, the tube is composed of a hollow first tube bent into an arc shape and second through nth tubes sequentially inserted into the first tube. (Herein, n is 3 or more and 7 or less The natural number of.

The tube is connected to a peeling pressure measuring device for measuring a pressure applied to the tube when the tube enters the human body.

The separation pressure measuring apparatus includes a housing coupled to an outer circumferential surface of a rear end of the tube, a coupling portion inserted into the housing and coupled to a rear end of the tube, and a spring fitted to the outer circumferential surface of the coupling portion. .

The release pressure measuring device is a load cell installed in a tube.

According to another aspect of the present invention, there is provided an apparatus for separating tissue, comprising: a tube having a plurality of stages separated from each other so as to be adjustable in length and reciprocating linearly; And an expanding member which is made of a resin material.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to securely and easily remove tissue such as blood vessels during surgery through an image by an ultrasound or through an endoscope.

Further, according to the present invention, it is possible to expand the space between the tissue to be peeled and the surrounding tissue by using the pressure of the fluid, and to open the space between the tissues by the expanding member that expands by the hydraulic pressure, It is possible to carry out the peeling work more safely without damaging the tissue and the surrounding tissues.

In addition, according to the present invention, it is possible to minimize the incision site of the skin necessary for exfoliation of the tissue, and to easily peel the tissue even when the use of the surgical tool is inevitably limited, such as during surgery through an image such as an endoscope or an ultrasound Effect.

Further, according to the present invention, there is additionally provided an effect of allowing the external tissue located at a position difficult to reach by a straight line and the tissue to be peeled to be peeled off without damaging due to the multi-formed curved tube.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a biopsy stripper for a conventional endoscope. Fig.
2 is a view showing an example of use of the tissue peeling apparatus according to the present invention.
3 is a view showing an embodiment of a tissue exfoliation apparatus according to the present invention.
Fig. 4 is a view showing a state in which a fluid ejecting tube is coupled to the present invention shown in Fig. 3; Fig.
FIG. 5 is a view showing a combined state of the needle according to the present invention shown in FIG. 4; FIG.
6 is a view showing a state in which an expansion member is coupled to the present invention shown in Fig.
7 (a) to 7 (h) are views showing a process of peeling a tissue using the present invention shown in Fig. 6; Fig.
8 is a view showing another embodiment of the tissue peeling apparatus according to the present invention.
9 is a view showing an apparatus for peeling pressure measurement in a tissue peeling apparatus according to the present invention.
10 is a view showing still another embodiment of the tissue peeling apparatus according to the present invention.

Hereinafter, preferred embodiments of the tissue peeling apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a view showing an example of use of the tissue peeling apparatus according to the present invention, FIG. 3 is a view showing an embodiment of the tissue peeling apparatus according to the present invention, FIG. 5 is a view showing a state in which the needles are coupled to the present invention shown in FIG. 4, FIG. 6 is a view showing a state in which the expansion member is coupled to the present invention shown in FIG. 4, 7 (a) to (h) show a process of peeling off a tissue using the present invention shown in Fig. 6, Fig. 8 is a view showing another embodiment of the tissue peeling apparatus according to the present invention, FIG. 10 is a view showing another embodiment of the tissue peeling apparatus according to the present invention, and FIG. 10 is a view showing another embodiment of the tissue peeling apparatus according to the present invention.

The present invention allows the tissue 50 such as blood vessels, nerves, vas deferens, and fallopian tubes to be more easily peeled off during surgery through an ultrasound image or an endoscope, and at the same time, dissociates from surrounding tissues without damaging the tissue, The present invention relates to a tissue detachment device capable of adjusting the length of a tissue, as shown in Figs. 2 and 3, And a connecting member 140 to be coupled.

More specifically, the tube 100 includes a guide 50 inserted to the periphery of the tissue 50 (hereinafter, the case where the tissue is a 'blood vessel 50' is described as an example) The sheath 60 is inserted or directly inserted into the human body and protruded from the inside of the human body to the outside of the sheath 60 to easily reach the periphery of the blood vessel 50 to be peeled It is the role of guiding to do.

When the tube 100 is formed into an arc shape, the tube 100 can be directly wound around the blood vessel 50 while separating the blood vessel 50 from surrounding tissues, It is also possible to play a role in

In addition, the tube 100 is made of a soft material having self-elasticity to facilitate access to the blood vessel 50 to be peeled in the human body, and is configured to be divided into multiple stages so as to be adjustable in length, And it is structured so that the tissue or the blood vessel 50 to be peeled can be easily reached without being damaged even when the blood vessel 50 is located deep inside the human body.

8, the tube 100 may be formed in an arc shape. When the tube 100 is formed in an arc shape, the sheath 60 is formed around the blood vessel 50 to be peeled, So as to surround the blood vessel 50 to be peeled off while the length of the tube 100 is changed.

Next, as described above, the number of the tubes 100 separated and configured in multiple stages may be varied depending on the purpose of use. For example, when used for peripheral neuroanatomy, the number of the tubes 100 may be one or two And may be composed of three or more tubes 100 when used for tissue detachment.

In addition, the number of the tubes 100 may be adjusted to 3 to 7 according to the elasticity of the material constituting the tube 100. Hereinafter, the number of the tubes 100 is three Embodiments of the tissue peeling apparatus according to the present invention will be described.

2 and 8, the tube 100 includes a first tube 110 positioned at the outermost position, a second tube 120 and a second tube 120 inserted into the outermost tube 110, The first tube 110, the second tube 120, and the third tube 130 are all hollow. The first tube 110, the second tube 120, and the third tube 130 have a hollow shape. And is made of a tube having a straight or circular shape so that reciprocating movement is possible.

The first tube 110, the second tube 120, and the third tube 130 may be cylindrical tubes having an arc shape having a circumferential angle of about 150 degrees, And protrudes outward from the sheath 60 when the first tube 110 protrudes sequentially from the first tube 110 to the second tube 120 and the third tube 130. When the protrusion is completed, . At this time, it is needless to say that the developing order of the first to third tubes 110, 120 and 130 may be reversed.

That is, the angles forming the arc of each tube 100 are obtained by dividing 360 degrees of the circle by the number of tubes, and then adding a certain angle in order to secure overlapping portions so that the tubes 100 can support each other When the peeling apparatus is constituted by a total of three tubes 110, 120 and 130 as in the embodiment of the present invention, by adding about 30 degrees to the supporting portion by overlapping each other at 120 degrees divided by 360 degrees, (110, 120, and 130) have a circular angle of about 150 degrees.

At this time, during the development of the tube 100 as described above, the blood vessel 50 is naturally peeled off from the surrounding tissue. The circumference of the blood vessel 50 to be peeled off due to the shape of the arc- So that the blood vessel 50 and surrounding tissues are not damaged in the peeling process.

The tube 100 made of the first tube 110, the second tube 120 and the third tube 130 has a self-elasticity and can be easily inserted into the sheath 60.

Although not shown, guide grooves (not shown) are formed on inner surfaces of the first and second tubes 110 and 120, and second and third tubes 110 and 120, which are inserted into the first and second tubes 110 and 120, The outer surfaces of the tubes 120 and 130 may be formed so that guide protrusions fitted into the guide grooves are protruded to prevent rotation of the first to third tubes 110, 120 and 130 during deployment and recovery .

The connecting member 140 is provided at the front end of the tube 100 and is provided with a connecting member 140 for connecting and supporting a separating tool such as a fluid injecting tube 200 and a ligating chamber 150, It plays a role.

3, the connecting member 140 is connected to a front end portion of the tube 100, preferably an n-th tube (in this embodiment, 3 tube 130), or is detachably coupled.

In addition, the front end of the connecting member 140 may be curved to have a hemispherical shape so as to minimize damage to the blood vessel 50 or the surrounding tissues during the separation process using the tube 100, (Outer diameter) of the first tube 110 is larger than the diameter (inner diameter) of the first tube 110, the second tube 120 and the first tube 110 can be simultaneously recovered when the tube 100 is recovered.

That is, since the diameter of the third tube 130 is smaller than the diameter of the second tube 120 or the first tube 110, when the tube 100 is recovered after peeling, only the third tube 130 is recovered, The diameter of the connecting member 140 coupled to the front end of the third tube 130 may be set to be smaller than the diameter of the first tube 110 The connection member 140 can pull the second tube 120 and the first tube 110 together while collecting the tube 100 when the tube 100 is recovered, It is possible to freely perform the expansion or the recovery.

4, the tissue peeling apparatus according to the present invention may further include a fluid injection tube 200 as a peeling tool connected to the connection member 140, 200 serves to spread the gap between the tissues by the pressure of the fluid injected by jetting the fluid such as air or water to make the separation more smooth.

That is, when peeling the tissue, the biggest problem is that the surrounding tissue is damaged during peeling because the tissue to be peeled is too close to the surrounding tissue. For example, when the tissue to be peeled is the blood vessel 50, ) Is characterized in that the mechanical strength is relatively smaller than that of the blood vessel (50).

Using this feature, when a fluid is injected between the blood vessel 50 and the connective tissue, the pressure of the fluid injected space is increased, and the fluid spreads to the surrounding area. The fluid spreads toward the weakly bonded tissue The connective tissue surrounding the blood vessel 50 is separated with the fluid therebetween, so that the blood vessel 50 can be separated more easily and safely.

At this time, a through hole 148 through which the fluid injection tube 200 passes is formed at the front end of the connecting member 140, and one or more injection holes 210 are formed in the front end of the fluid injection tube 200 (Not shown) connected to the rear end of the fluid injection tube 200. The fluid supply means is configured to inject fluid between the blood vessel 50 and the connective tissue, It is also possible to increase the space between the blood vessel 50 and the connective tissue by the pressure of the fluid.

5, a needle 220 may be coupled to the front end of the fluid injection tube 200 to inject the fluid. In the case of using the needle 220 as described above, The present invention can also be used for neural blockade such as a regional nerve block.

That is, when neural blockage is performed under ultrasound guidance, or when various neural blockages are performed in a pain clinic, a local anesthetic agent should be injected into the periphery of the nerve. In this case, When the needle is coupled to the front end of the member 140 or the fluid injection tube 200, there is an advantage that the local anesthetic agent can be injected to the rear portion of the nerve without directly damaging the tissues such as peripheral blood vessels and nerves will be.

In addition, as a result of the study up to now, it is known that a small amount of local anesthetic is sprinkled around the nerve little by little, and it is known that the nerve block rate is higher than that applied to one region. Therefore, It is possible to obtain a high nerve blockage rate while using a local anesthetic agent having a smaller volume than the case of using a combination.

Although not shown, the front end of the fluid injection tube 200 or the connecting member 140 may have a needle shape so that the fluid injection tube 200 or the connecting member 140 and the needle are integrally formed Needless to say, the needle may be directly coupled to the front end of the tube 100.

6, the expansion member 230 may be installed outside the front end of the fluid injection tube 200 in which the plurality of injection holes 210 are formed. ) And the surrounding tissues in a more secure manner.

That is, the expansion member 230, which expands by the fluid (mainly air is used) discharged from the injection hole 210 is coupled to the front end of the fluid injection tube 200, The blood vessel 50 can be safely peeled off without being applied.

More specifically, as shown in FIG. 7A, when the space between the blood vessel 50 to be peeled and the surrounding tissue is narrow and it is difficult to insert the peeling tool, that is, the connecting member 140 and the tube 100 The fluid injection tube 200 having a relatively small diameter is connected to the rear end of the fluid injection tube 200 while being inserted into the space between the blood vessel 50 and the surrounding tissue as shown in Fig. When the fluid is supplied through the installed fluid supply means, as shown in Fig. 7 (c), the expansion member 230 coupled to the outside of the front end of the fluid injection tube 200 expands, The space between adjacent tissues can be expanded.

7 (d), when the space between the blood vessel 50 and the surrounding tissue is expanded, the expanding member 230 is contracted again so that the connecting member 140 can be moved forward To this end, the fluid supply means is configured to be capable of forward and reverse control, and to be able to supply fluid as well as recover the fluid. The configuration of the fluid supply means, which is configured to be able to perform the normal / reverse control and generate the fluid supply and recovery alternately, has been conventionally used in various fields and is not intended to be claimed in the present invention. A description thereof will be omitted.

7 (e), when the expansion member 230 is retracted, the connection member 140 provided at the front end of the tube 100 pushes the tube 100 into the expansion member 230 7 (f) and (g) in this state, the fluid injection tube 200 is again inserted into the expanded space between the blood vessel 50 and the surrounding tissue 7 (h), the space between the blood vessel 50 and the surrounding tissues is separated from the surrounding tissues by repeating the above-described process by pushing the expanded member 230 into a narrow space between the blood vessel 50 and the surrounding tissue, So that the blood vessel 50 can be separated more easily and safely.

10, the tube 100 may be directly coupled to the front end portion of the tube 100, so that the tube 100 can be easily separated from the surrounding tissue by the above- The inflation member 230 may be configured to be inflated and deflated by the fluid to be supplied and recovered through the inflator.

A peeling pressure measuring device 180 may be connected to the tube 100 to measure the pressure applied to the tube 100 during peeling of the blood vessel 50. The peeling pressure measuring device 180 prevent the tissue from being peeled off with excessive force by allowing the operator to measure the pressure applied to the tube 100 when the tube 100 is introduced into the human body and the blood vessel 50 is peeled from surrounding tissues And serves to prevent damage to the blood vessel 50 or surrounding tissues during the peeling process.

9, the peeling-pressure measuring apparatus 180 includes a housing 182, a coupling portion 184, and a spring 186. The housing 182 is disposed on the inner side The space portion 185 into which the coupling portion 184 and the spring 186 are inserted is formed to fix and support the coupling portion 184 and the spring 186, And the coupling portion 184 is coupled to the rear end of the tube 100 to transmit the pressure applied to the tube 100 in the peeling process and the spring 186 is connected to the coupling portion 184 And is capable of measuring the peeling pressure by the shrinkage degree by being contracted by the pressure generated in the peeling process.

At this time, a stepped portion 185a is formed in the space portion 185 formed inside the housing 182 to support the spring 186, and then the housing 182 corresponding to the position where the spring 186 is inserted , It is possible to measure the peeling pressure mechanically without using a separate sensor by forming a scale portion 187 for measuring the degree of shrinkage of the spring 186. [ The housing 182 is made of a transparent material so that the degree of shrinkage of the spring 186 can be visually confirmed.

In addition, although not shown, a pressure sensor such as a membrane-shaped load cell may be used with the separation pressure measuring device 180. The load cell may be installed inside the tube 100 or the fluid injection tube 200, The pressure applied to the tube 100 or the fluid injection tube 200 may be configured to be confirmed through an electrical signal generated from the load cell.

Therefore, according to the tissue peeling apparatus of the present invention as described above, it is possible to securely and easily peel off the tissue 50 such as a blood vessel during surgery through an image or an endoscope, Or by using an expanding member that expands by hydraulic pressure, it is possible to more safely carry out the peeling operation without damaging the tissue to be peeled and the surrounding tissue so as to expand the space between the tissue to be peeled and the surrounding tissue, The present invention has various merits such as minimizing the incision site of the skin required for peeling of the skin, and allowing the external tissue and the tissue to be peeled to be peeled off without damaging the skin due to the curved multi-tube.

Although the preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention.

More particularly, the present invention relates to a tissue exfoliation device capable of easily separating tissues such as blood vessels, nerves, vas deferens, and fallopian tubes at the time of surgery using an ultrasound image or an endoscope, And dissecting the tissue from surrounding tissues.

50: tissue (blood vessel) 60: sheath
100: tube 110: first tube
120: second tube 130: third tube
140: connecting member 148: through hole
180: peeling pressure measuring device 182: housing
184: engaging portion 185:
185a: step portion 186: spring
187: scale part 200: fluid ejection pipe
210: Sprue 220: Needle
230: Expansion member

Claims (13)

In the tissue peeling apparatus,
A tube having a plurality of stages separated from each other and capable of linear reciprocating movement,
And a connection member provided at a front end of the tube and connected to a peeling tool.
The method according to claim 1,
Wherein the peeling tool is a fluid injecting tube which is injected through the tube and the connecting member to inject fluid around the tissue to be peeled off.
3. The method of claim 2,
Wherein at least one spray hole is formed in a front end portion of the fluid ejection tube.
3. The method of claim 2,
Wherein a needle is provided at a front end of the fluid ejection tube.
The method of claim 3,
And an expansion member that is expanded and contracted according to whether or not the fluid ejected from the injection hole is supplied is coupled to the outside of the front end of the fluid ejection tube.
3. The method of claim 2,
Wherein a front end portion of the connecting member is formed as a curved surface and a through hole is formed in a center portion of the front end portion to allow the fluid ejecting tube to pass therethrough and the diameter of the connecting member is larger than the diameter of the tube.
The method according to claim 1,
Wherein the tube is made of an elastic material.
8. The method according to any one of claims 1 to 7,
Wherein the tube has an arc shape.
9. The method of claim 8,
The tube includes a hollow first tube bent in an arc shape,
(N is a natural number of not less than 3 but not more than 7). The tissue peeling apparatus according to claim 1, wherein the first to n-th tubes are sequentially inserted into the first tube.
The method according to claim 1,
Wherein the tube is connected to a peeling pressure measuring device for measuring a pressure applied to the tube when the tube enters the human body.
11. The method of claim 10,
The apparatus for peeling pressure measurement comprises a housing coupled to an outer circumferential surface of a rear end of a tube, a coupling portion inserted into the housing and coupled to a rear end of the tube, and a spring fitted to the outer peripheral surface of the coupling portion. .
11. The method of claim 10,
Wherein the peeling pressure measuring device is a load cell provided on a tube.
In the tissue peeling apparatus,
A tube having a plurality of stages separated from each other and capable of linear reciprocating movement,
And an expansion member provided at a front end portion of the tube and expanding and contracting depending on whether a fluid ejected from the tube is supplied.

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