KR102531638B1 - Balloon device for space maintenance and drug injection in shoulder joint - Google Patents

Abstract

The present invention relates to a balloon device for maintaining space in a shoulder joint and injecting drugs. It extends in the longitudinal direction and includes a guide tube having a chemical solution supply passage and a pressurized fluid supply passage formed side by side therein; It is coupled to the front end of the guide tube, and in a state of being inserted into the narrow gap space inside or outside the shoulder joint, it expands under the action of pressurized fluid pressurized through the pressurized fluid passage to expand the gap space, and the expanded inside a balloon body ejecting the chemical solution injected into the space through the chemical solution supply passage; and an injection adapter connected to the rear end of the guide tube and guiding the chemical solution and the pressurized fluid pressurized from the outside into the chemical solution supply path and the pressurized fluid supply path, respectively.
The balloon device for maintaining the space in the shoulder joint and injecting the drug according to the present invention made as described above secures and maintains the space by inflating the inside of the shoulder joint as well as being inserted into the external narrowed part, and the necessary drug solution within the secured space. The treatment effect can be further enhanced by spewing out.

Description

Balloon device for space maintenance and drug injection in shoulder joint}

The present invention relates to a balloon device used in orthopedic surgery, and more particularly, to a balloon device for maintaining space in the shoulder joint and injecting drugs, which is capable of opening and maintaining a narrowed space inside the shoulder joint and injecting a drug solution. it's about

Among the joints in our body, the shoulder joint has a wide range of motion angles and relatively high usage, so abnormal symptoms are likely to occur if management is not performed properly. For example, abnormal symptoms of the shoulder joint can easily develop when the shoulder muscle mass is insufficient or the shoulder is used excessively. Therefore, medications and physical therapy suitable for the symptoms or orthopedic surgery should be performed in severe cases.

However, when the shoulder joint has lost its function due to severe arthritis or fracture, a process of returning the twisted and broken bones or tissues to their normal positions is absolutely necessary. For example, the closer parts are widened apart, and the farther parts are returned to their original position. This treatment requires a device that applies physical force to bones or tissues located inside and outside the shoulder joint.

As a prior art related to this, Korean Patent Publication No. 10-2015-0142672 (balloon implant device) has been disclosed. The disclosed balloon implant device is an implant for maintaining a space between the proximal end of a humerus and the inferior surface of a corresponding acromion, comprising an inflatable humeral balloon and one or more stationary features disposed on the inflatable humeral balloon, comprising: A first surface of the implant is configured to abut the inferior surface of the patient's acromion, a second surface of the implant is configured to adjacent the humeral head of the patient's humerus, and the implant is configured to maintain a desired subacromial separation of the acromion and humerus. do.

However, the conventional balloon implant device described above has a disadvantage in that it cannot be used as an active treatment tool itself because it only functions to maintain the separation of the acromion between the humerus bone and the acromion.

Korean Patent Publication No. 10-2015-0142672 (Balloon implant device) WO 2009/023250 A1 (TISSUE POSITIONING DEVICE)

The present invention was created to solve the above problems, and expands in a state inserted into the narrowed part of the outside as well as inside the shoulder joint to secure and maintain a space, and further increase the therapeutic effect by ejecting the necessary medicinal solution within the secured space. It is an object of the present invention to provide a balloon device for maintaining space in the shoulder joint and for injecting drugs.

The balloon device for maintaining the space in the shoulder joint and injecting the drug of the present invention as a means of solving the problems for achieving the above object is a guide extending in the longitudinal direction and having a chemical solution supply path and a pressurized fluid supply path formed side by side therein. tube; It is coupled to the front end of the guide tube, and in a state of being inserted into the narrow gap space inside or outside the shoulder joint, it expands under the action of pressurized fluid pressurized through the pressurized fluid passage to expand the gap space, and the expanded inside a balloon body ejecting the chemical solution injected into the space through the chemical solution supply passage; and an injection adapter connected to the rear end of the guide tube and guiding the chemical solution and the pressurized fluid pressurized from the outside into the chemical solution supply path and the pressurized fluid supply path, respectively.

In addition, the balloon body; An inner balloon that passes through the guide tube and expands by accepting the pressurized fluid supplied through the pressurized fluid passage, and provides a chemical solution space between the inner balloon and the inner balloon, through the chemical solution supply path. a porous cover having a chemical discharge hole through which the chemical solution introduced into the chemical solution space is ejected to the surroundings, and the guide tube includes; A pressurized fluid hole opening the pressurized fluid supply path to the inner space of the inner balloon and a chemical solution hole opening the chemical liquid supply path to the chemical liquid space are formed.

In addition, on the outer surface of the porous cover; A linear groove is formed to accommodate the chemical discharge hole and prevent the porous cover from slipping with surrounding tissue.

In addition, the injection adapter; A chemical solution chamber that accepts the chemical solution injected from the outside, a chemical solution entry path that communicates with the chemical solution chamber and guides the chemical solution in the chemical solution chamber to the chemical solution supply path of the guide tube, a fluid chamber that accepts the pressurized fluid pressurized from the outside, a body in which a fluid entry path for guiding fluid into a pressurized fluid supply path of the guide tube is formed; It is built into the chemical chamber and the fluid chamber, respectively, and includes a backflow prevention blocking ball to prevent the backflow of the chemical solution and the pressurized fluid.

The balloon device for maintaining the space in the shoulder joint and injecting the drug according to the present invention made as described above secures and maintains the space by inflating the inside of the shoulder joint as well as being inserted into the external narrowed part, and the necessary drug solution within the secured space. The treatment effect can be further enhanced by spewing out.

1 is a view showing the inside of the shoulder to which a balloon device for maintaining space in the shoulder joint and injecting drugs according to an embodiment of the present invention is applied.
Figure 2 is an exploded perspective view of a balloon device for maintaining space in the shoulder joint and injecting drugs according to an embodiment of the present invention.
Figure 3 is a cross-sectional view for explaining the internal configuration of the balloon body shown in Figure 2;
Figure 4 is a cross-sectional view showing the internal structure of the adapter shown in Figure 2;
Figure 5 is a view showing the elastic plate of Figure 3 together with the injection tube.
Figure 6 is a perspective view showing a modified example of the balloon body shown in Figure 2;
7 is a cross-sectional view along line AA of FIG. 6 .

Hereinafter, one embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

1 is a view showing the inside of a shoulder 10 to which a balloon device 30 for maintaining space in a shoulder joint and injecting drugs according to an embodiment of the present invention is applied.

As shown, the balloon body 40 of the balloon device 30 for drug injection according to the present embodiment is inflated while being inserted between the acromion 16 and the humeral head 14. As the balloon body 40 inflates, the acromion 16, which has been pressed downward, is restored to its normal position, enabling orthopedic treatment.

In addition, as will be described later, the chemical solution can be ejected from the balloon body 40, and more effective treatment is possible by ejecting the chemical solution into the space in an open state.

Although the balloon device 30 is applied to the lower portion of the acromion 16 in FIG. 1, the application point of the balloon device 30 may vary depending on the purpose of treatment and the location of the affected area.

Figure 2 is an exploded perspective view of a balloon device 30 for maintaining space in the shoulder joint and injecting drugs according to an embodiment of the present invention, Figure 3 is a cross-sectional view for explaining the internal configuration of the balloon body shown in Figure 2. In addition, Figure 4 is a view showing the internal structure of the adapter of Figure 2, Figure 5 is a partial perspective view showing the elastic plate of Figure 3 together with the injection tube.

As shown, the balloon device 30 according to the present embodiment includes a guide tube 50, a balloon body 40, an injection adapter 60, a liquid medicine syringe 71, and a pressurized fluid syringe 73. .

The guide tube 50 is a flexible member extending linearly in the longitudinal direction and has a chemical solution supply passage 51 and a pressurized fluid supply passage 53 therein. The chemical solution supply passage 51 is a passage through which the chemical solution to be supplied to the affected area passes, and the pressurized fluid supply passage 53 passes the pressurized fluid for inflating the balloon body 40 . The chemical solution supply path 51 and the pressurized fluid supply path 53 are parallel to each other. In addition, the inner diameters of the chemical solution supply passage 51 and the pressurized fluid supply passage 53 may vary as needed.

Gas or liquid may be used as the pressurized fluid, for example, air may be used as the gas, and saline may be used as the liquid. The medicinal solution is a drug necessary for shoulder surgery.

In addition, as shown in FIG. 3, the front end of the guide tube 50 is inserted and fixed into the balloon body 40, and the portion accommodated in the balloon body 40 has a first side hole 53a and a second side portion. A hole 51a is formed.

The first side hole 53a is a passage opened to an expansion space 40a to be described later, and guides the pressurized fluid pressurized through the pressurized fluid supply passage 53 to the expansion space 40a. The pressurized fluid discharged into the expansion space 40a inflates the expansion space 40a.

Also, the second side hole 51a is a hole opened toward the chemical liquid space 40c. The second side hole 51a ejects the chemical solution supplied through the chemical solution supply path 51 into the chemical solution space 40c. The chemical liquid filled in the chemical liquid space 40c is ejected to the surroundings through the chemical liquid discharge hole 41a.

On the other hand, the balloon body 40 is coupled to the front end of the guide tube 50, is inserted into the narrow gap inside or outside the shoulder joint, expands, and sprays liquid medicine to the surroundings in an expanded state. The balloon body 40 can be made of medical silicone and can be elastically deformed by an external force as a whole integrally formed.

The balloon body 40 has a double structure of an inner balloon 43 and a porous cover 41. The porous cover 41 surrounds the inner balloon 43.

In an inflated state, the inner balloon 43 takes a substantially cylindrical shape, and the tip is rounded off. In addition, the inner balloon 43 is provided with a tube through hole 43c and a compression sleeve 43e.

The tube through hole 43c is a hole through which the guide tube 50 passes. In addition, the compression sleeve 43e wraps around the outer circumferential surface of the guide tube 50 as a cylindrical portion located on the side of the tube through-hole 43c. In particular, the compression sleeve 43e clamps the outer circumferential surface of the guide tube 50 under the action of pressure as the pressure inside the expansion space 40a rises. Since the compression sleeve 43e presses the guide tube 50, there is no fear of leakage of the pressurized fluid filled in the expansion space 40a.

The inner balloon 43 having the above structure passes the guide tube 50 therein and receives the pressurized fluid supplied through the first side hole 53a to inflate. The expansive force of the inner balloon 43 is strong enough to widen the gap between narrowed bones or tissues inside or outside the shoulder joint.

The porous cover 41 is a sheet in which a plurality of chemical liquid discharge holes 41a are formed, and surrounds the inner balloon 43 and provides a chemical liquid space 40c between the inner balloon and the inner balloon. The chemical liquid flowing into the chemical liquid space 40c through the second side hole 51a fills the chemical liquid space 40c and then discharges to the surroundings through the chemical liquid discharge hole 41a. The ejected drug solution is applied to the affected area and begins pharmacological action.

An elastic plate 57 is fixed to the inner circumferential surface of the porous cover 41 . The elastic plate 57 is a thin metal plate having elasticity, and prevents the perforated cover 41 from being perforated by the front end of the guide tube 50 when the balloon body 40 advances. The elastic plate 57 is collapsed when the balloon body 40 enters, for example, a narrow gap, and the balloon body 40 unfolds in an inflated state.

As shown in FIG. 5, the elastic plate 57 has a predetermined thickness, has an end receiving groove 57a in the center, and has a plurality of extensions 57c on the outside. The end receiving groove 57a is a groove corresponding to the end of the guide tube 50. When the balloon body 40 moves forward, the end of the guide tube 50 presses the bottom surface of the end receiving groove 57a.

The extension portion 57c is a portion extending radially around the end receiving groove 57a, by expanding the contact area of the elastic plate 57 with respect to the porous cover 41, applied to the porous cover 41 Avoid concentration of load.

On the other hand, the injection adapter 60 is connected to the rear end of the guide tube 50, and the chemical solution and pressurized fluid injected from the chemical solution syringe 71 and the pressurized fluid syringe 73 are transferred to the chemical solution supply path 51 and the pressurized fluid. They are guided to the supply path 53, respectively.

The injection adapter 60 includes a body 61 and two backflow blocking balls 61e and 63e. Further, inside the body 61, a chemical solution flow path 60A and a pressurized fluid flow path 60B are formed symmetrically.

The chemical solution flow passage 60A is composed of an inlet 61d, a chemical solution chamber 61c, and a chemical solution exit passage 61h. The inlet 61d is a passage of the syringe coupling part 61a to which the liquid medicine syringe 71 is fixed, and introduces the liquid medicine supplied from the liquid medicine syringe 71 into the liquid medicine chamber 61c.

The chemical solution chamber 61c once receives the chemical solution introduced through the inlet 61d and guides it to the chemical solution exit path 61h. In addition, a locking wall portion 61b and a first ball seat 61f are provided inside the liquid chemical chamber 61c. The locking wall portion 61b is a passage narrowing in the direction toward the inlet 61d, and prevents the backflow blocking ball 61e from escaping from the liquid medicine chamber 61c. In particular, it comes into line contact with the backflow blocking ball 61e moving in the direction of the arrow e, and prevents the chemical solution from flowing backward toward the inlet 61d.

The first ball seat 61f is a cylindrical shape and supports the backflow blocking ball 61e. The backflow blocking ball 61e is trapped between the locking wall 61b and the first ball seat 61f. In addition, a plurality of side holes 61g are formed on the side of the first ball seat 61f. The side hole 61g is a passage through which the chemical liquid inside the chemical liquid chamber 61c is discharged to the chemical liquid advance path 61h.

The chemical liquid advance passage 61h is a straight passage that receives the chemical liquid passing through the first ball seat 61f and guides it to the chemical liquid supply passage 51, and is open to the outside through the first insertion portion 61k. As the first insertion portion 61k is inserted into the chemical solution supply passage 51, the chemical solution advance passage 61h communicates with the chemical solution supply passage 51.

The pressurized fluid passage 60B includes an inlet 63d, a fluid chamber 63c, a second ball seat 63f, and a fluid exit passage 63h. The inlet 63d is an internal passage of the syringe coupling portion 63a to which the pressurized fluid syringe 73 is coupled. The pressurized fluid injected from the pressurized fluid syringe 73 moves into the fluid chamber 63c through the inlet 63d.

The fluid chamber 63c is a space that receives the injected pressurized fluid, temporarily accommodates it, and then sends it out to the fluid exit path 63h. Inside the fluid chamber 63c, a locking wall portion 63b and a second ball seat 63f are provided. The locking wall portion 63b is a narrow passage toward the inlet 63d, and prevents the backflow blocking ball 63e from escaping to the outside. The backflow blocking ball 61e moving in the direction of arrow f comes into line contact with the locking wall portion 63b and prevents the pressurized fluid from flowing backward. That is, leakage of the pressurized fluid through the inlet 63d is blocked.

The second ball seat 63f has a cylindrical shape and has a plurality of side holes 63g on the side. The side hole 63g is a passage through which the pressurized fluid inside the fluid chamber 63c passes and exits to the fluid exit passage 63h. The backflow blocking ball 63e is trapped between the locking wall 63b and the second ball seat 63f.

The fluid entry passage 63h is a straight passage that receives the pressurized fluid passing through the second ball seat 63f and guides it to the pressurized fluid supply passage 53, and is open to the outside through the second insertion portion 63k. As the second insertion part 63k is inserted into the chemical liquid supply path 53, the fluid advance path 63h is connected to the pressurized fluid supply path 53.

The backflow blocking ball 61e accommodated in the liquid chemical chamber 61c is a spherical member made of stainless steel, and is spaced apart from the locking wall 61b while the chemical liquid is supplied. In addition, when the chemical liquid flows backward, it receives the flow energy of the chemical liquid and is pushed in the direction of the arrow e so that it comes into close contact with the retaining wall portion 61b, thereby blocking further reverse flow.

The backflow blocking ball 63e built into the fluid chamber 63c is also a spherical member made of stainless steel. The fluid chamber 63c is pushed away from the retaining wall portion 63b while the pressurized fluid flows in. In addition, after completion of the injection of the pressurized fluid, leakage of the pressurized fluid is prevented by blocking the fluid chamber 63c by being pushed in the direction of arrow f under the back pressure action of the pressure.

6 is a perspective view showing a modified example of the balloon body 40 shown in FIG. 2, and FIG. 7 is a cross-sectional view along line A-A of FIG.

Referring to the drawings, it can be seen that a plurality of linear grooves 41e are formed on the outer surface of the porous cover 41 constituting the balloon body 40. The linear groove 41e has a certain width and prevents the porous cover 41 from slipping with the surrounding tissue. That is, the balloon body 40 is to stably maintain its position without slipping at the point where it is inserted and inflated. As long as this function can be provided, the pattern of the linear groove can be varied.

In addition, the chemical discharge hole 41a is located inside the linear groove 41e. The chemical discharge hole 41a is spaced apart from the surrounding bone or tissue (as much as the depth of the linear groove). In this way, since the chemical solution discharge hole 41a is not blocked by the tissue, smooth application of the chemical solution is possible because there is no resistance when the chemical solution is discharged.

In the above, the present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications are possible by those skilled in the art within the scope of the technical idea of the present invention.

10: shoulder 14: humeral head 16: acromion
30: balloon device 40: balloon body 40a: expansion space
40c: chemical liquid space 41: perforated cover 41a: chemical liquid discharge hole
41e: linear groove 43: inner balloon 43c: tube through hole
43e: pressure sleeve 50: guide tube 51: chemical solution supply path
51a: second side hole 53: pressurized fluid supply path 53a: first side hole
57: elastic plate 57a: end receiving groove 57c: extension
60: injection adapter 60A: chemical liquid flow furnace 60B: pressurized fluid flow furnace
61: body 61a: syringe coupling portion 61b: hanging wall portion
61c: chemical chamber 61d: inlet 61e: backflow blocking ball
61f: first ball seat 61g: side hole 61h: chemical solution entry route
61k: first insertion part 63a: syringe coupling part 63b: hanging wall part
63c: fluid chamber 63d: inlet 63e: backflow blocking ball
63f: second ball seat 63g: side hole 63h: fluid exit
63k: second insertion part 71: liquid medicine syringe 73: pressurized fluid syringe

Claims (4)

a guide tube extending in the longitudinal direction and having a chemical solution supply passage and a pressurized fluid supply passage formed side by side therein;
It is coupled to the front end of the guide tube, and in a state of being inserted into the narrow gap space inside or outside the shoulder joint, it expands under the action of pressurized fluid pressurized through the pressurized fluid passage to expand the gap space, and the expanded inside a balloon body ejecting the chemical solution injected into the space through the chemical solution supply passage;
It is connected to the rear end of the guide tube and includes an injection adapter for guiding the chemical solution and the pressurized fluid pressurized from the outside into the chemical solution supply path and the pressurized fluid supply path, respectively.
The balloon body passes the guide tube inside, receives the pressurized fluid supplied through the pressurized fluid passage, and expands the inner balloon, and surrounds the inner balloon and provides a liquid space between the inner balloon, A porous cover having a chemical discharge hole for ejecting the chemical solution flowing into the chemical solution space through the chemical solution supply passage to the surroundings;
The guide tube is formed with a pressurized fluid hole that opens the pressurized fluid supply path to the inner space of the inner balloon, and a chemical solution hole that opens the chemical solution supply path to the chemical space,
The inner balloon has a tube through-hole through which the guide tube passes toward the chemical liquid space, is disposed on a side of the tube through-hole toward an expansion space receiving the pressurized fluid, and covers an outer circumferential surface of the guide tube through which the inner balloon passes. Having a compression sleeve that wraps around and tightens the outer circumferential surface of the guide tube when the internal pressure of the expansion space increases.
A balloon device for maintaining space in the shoulder joint and injecting drugs. delete According to claim 1,
On the outer surface of the porous cover;
A linear groove is formed to accommodate the chemical discharge hole and prevent the porous cover from slipping with the surrounding tissue.
A balloon device for maintaining space in the shoulder joint and injecting drugs. According to claim 1,
The injection adapter;
A chemical solution chamber that accepts the chemical solution injected from the outside, a chemical solution entry path that communicates with the chemical solution chamber and guides the chemical solution in the chemical solution chamber to the chemical solution supply path of the guide tube, a fluid chamber that accepts the pressurized fluid pressurized from the outside, a body in which a fluid entry path for guiding fluid into a pressurized fluid supply path of the guide tube is formed;
It is built into the chemical chamber and the fluid chamber, respectively, and is provided with a backflow prevention blocking ball to prevent the backflow of the chemical solution and the pressurized fluid.
A balloon device for maintaining space in the shoulder joint and injecting drugs.

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