Description BALLOON CATHETER
Technical Field
[1] The present invention relates to a balloon catheter for backbone treatment, and more particularly, to a balloon catheter for reducing a treatment time and preventing an injected bone cement from stimulating and destroying nerves during quick setting. Background Art
[2] As well known in the art, man or animal's bone has a skeletal framework made of proteins, collagen, and calcium salts. In the case of the outbreak of osteoporosis, breast cancer, and bone metastasis caused by frequent alcohol and smoking or drug taking, etc., bones are easily fractured or weakened and thus, suffer a fracture or a compression fracture.
[3] Thus, bone collapse leads to nerve press and thus causes a severe pain, thereby making a life difficult. In a worse case, a paralysis of human bodies also happens.
[4] In recent years, a medical treatment using a balloon catheter has been performed to reinforce the backbone suffering a fracture or a compression fracture. In general, catheter refers to a tube type tool and is formed of synthetic resin, plastic rubber, latex, silicon, metal, etc.
[5] Catheter is comprised of a long injection tube 10 and a balloon inflation part 20 connecting to an end of the injection tube 10 and inflating an interior of the backbone. To reinforce the backbone by the catheter, an insertion hole 40 is first provided up to an inner side of the backbone using a fine drill 30 (SlO).
[6] The balloon inflation part 20 is inserted into the backbone through the insertion hole
40 (S20). A high-pressure inflation gas or inflation liquid 50 is injected (S30), thereby gradually inflating an interior of the backbone and securing a predetermined cavity in the backbone. The balloon inflation part 20 is withdrawn from the insertion hole 40 (S40). Bone cement 60 is injected into the cavity using a separate tool 70 and is quickly set for bone reinforcement (S50). Thus, any more backbone collapse is prevented.
[7] However, the backbone reinforcement requires several works of providing the insertion hole 40 in the backbone by the drill 30, inserting the balloon inflation part 20 into the insertion hole 40 of the backbone, injecting the inflation gas or inflation liquid 50 into the inserted balloon inflation part 20 to thereby inflate the balloon inflation part 20, withdrawing the balloon inflation part 20 from the insertion hole 40 of the backbone, and injecting a quick-setting bone cement 60 into the cavity using the separate tool 70. Hence, it takes a long time for treatment. [8] Also, there is a drawback that while the bone cement 60 injected into the cavity from which the balloon inflation part 20 is withdrawn after inflation is quickly set, it generates a high temperature of about 7O0C to 8O0C, thereby stimulating and destroying neighbor nerves and causing a patient's pain. Disclosure of Invention Technical Problem
[9] Accordingly, the present invention is directed to a balloon catheter that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.
[10] An object of the present invention is to reduce the number of instruments necessary for medical treatment and greatly reduce a work time for treatment.
[11] Another object of the present invention is to prevent bone cement injected into the backbone from getting in direct contact with nerves, thereby reducing a concern about destroying patient's nerves due to high temperature generated while quick setting. Technical Solution
[12] To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described, there is provided a balloon catheter for backbone treatment in which a cavity is secured to reinforce the backbone suffering a fracture or a compression fracture by providing a predetermined insertion hole in front of the backbone and inflating an interior of the backbone by insertion into the insertion hole. The balloon catheter includes a cement injection tube having a long
[13] tube shape, a balloon inflation part connecting to an end of the cement injection tube, and a combiner provided for assembly and disassembly at an end of the cement injection tube and an end of the balloon inflation part.
[14] An extension tube may be provided to cross an interior of the balloon inflation part and communicate with the cement injection tube, and one or more bone cement outlets are provided at the extension tube.
[15] The balloon inflation part may be provided such that a rear inflation part is more inflated than a front inflation part. The combiner may be of a screw type.
[16]
Advantageous Effects
[17] The present invention is very useful in that bone cement is injected while inflating a balloon inflation part without injecting a separate inflation air or inflation liquid, thereby greatly simplifying a work and reducing a surgical operation time. Also, a heat generated from the injected bone cement during quick setting is cut off by the balloon inflation part and hence, there is no concern about nerve destruction. Brief Description of the Drawings [18] FIG. 1 is a schematic perspective diagram illustrating a balloon catheter in the conventional art; [19] FIG. 2 is an extended partial diagram illustrating an example of an inflation part of a balloon catheter in the conventional art; [20] FIG. 3 is a cross section illustrating an example of a state in which an insertion hole for inserting a balloon catheter is provided in the backbone in the conventional art; [21] FIG. 4 is a cross section illustrating an example of a state in which a balloon catheter is inserted into an insertion hole of the backbone in the conventional art; [22] FIG. 5 is a cross section illustrating an example of a state in which an inflation part is inflated by an inflation liquid injected into a balloon catheter in the conventional art; [23] FIG. 6 is a cross section illustrating an example of a state in which bone cement is injected into the backbone from which a balloon catheter is withdrawn in the conventional art; [24] FIG. 7 is a flowchart illustrating a procedure of reinforcing the backbone using a balloon catheter in the conventional art; [25] FIG. 8 is an exploded perspective diagram illustrating a balloon catheter according to the present invention; [26] FIG. 9 is an extended partial diagram illustrating an example of a state in which an injection tube of a balloon catheter is coupled to an inflation part according to the present invention; [27] FIG. 10 is a cross section illustrating an example of a state in which a balloon catheter is inserted into an insertion hole of the backbone according to the present invention; [28] FIG. 11 is a cross section illustrating an example of a state in which bone cement is injected into a balloon catheter according to the present invention; [29] FIG. 12 is a cross section illustrating an example of a state in which the backbone is reinforced by injecting and quickly setting bone cement in an inflation part in a balloon catheter according to the present invention; and [30] FIG. 13 is a flowchart illustrating a procedure of reinforcing the backbone using a balloon catheter according to the present invention.
Mode for the Invention [31] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to accompanying drawings. [32] FIG. 8 is an exploded perspective diagram illustrating a balloon catheter according to the present invention. FIG. 9 is an extended partial diagram illustrating an example of a state in which an injection tube of the balloon catheter is coupled to an inflation part according to the present invention. FIG. 10 is a cross section illustrating an example of a state in which the balloon catheter is inserted into an insertion hole of the backbone according to the present invention. FIG. 11 is a cross section illustrating an example of a state in which bone cement is injected into the balloon catheter according to the present invention. FIG. 12 is a cross section illustrating an example of a state in which the backbone is reinforced by injecting and quickly setting bone cement in the inflation part in the balloon catheter according to the present invention. FIG. 13 is a flowchart illustrating a procedure of reinforcing the backbone using the balloon catheter according to the present invention.
[33] According to the present invention, the balloon catheter for backbone treatment includes a cement injection tube 100 and a balloon inflation part 200. The cement injection tube 100 is of a long tube type formed of Steel UnStain (SUS). The balloon inflation part 200 is of a roughly "8"-shaped rubber and is combined by a combiner 300 with the cement injection tube 100.
[34] In detail, a combiner 300a such as a screw is installed at an end of the cement injection tube 100. A combiner 300b is installed at one end of the balloon inflation part 200 in such a manner that it faces the cement injection tube 100. So, they can be assembled and disassembled from each other.
[35] Undoubtedly, the combiner 300 can use various types of combiners that are not disclosed in the present invention.
[36] Desirably, the balloon inflation part 200 is formed such that a rear inflation part is more inflated than a front inflation part. For this, the rear inflation part is formed about 1.2 times to 1.6 times greater in size than the front inflation part.
[37] An extension tube 400 having a predetermined diameter is installed inside the balloon inflation part 200 to communicate with the cement injection tube 100, crossing an interior of the balloon inflation part 200 from the combiner 300b of the balloon inflation part 200. The extension tube 400 has one or more outlets 410.
[38] Thus, a procedure of medically treating the backbone using the balloon catheter of the present invention will be described below. First, as well known in the art, an insertion hole 40 is provided to have a predetermined depth in a backbone portion intended for treatment, using a tool such as a drill 30 (Step 110).
[39] The balloon inflation part 200 of the balloon catheter is inserted into the insertion hole 40 provided in the backbone (S 120). A quick-setting bone cement 60 is injected at high pressure through the cement injection tube 100 (S 130).
[40] As the injected bone cement 60 is introduced into the balloon inflation part 200 through the outlets 410 of the extension tube 400, the balloon inflation part 200 is filled with the injected bone cement 60. If the bone cement 60 is excessively filled, the balloon inflation part 200 is inflated while being filled with the bone cement 60.
[41] Thus, a fractured backbone portion is gradually made stand while reinforced, and the injected bone cement 60 is quickly set and hardened within the backbone together with the balloon inflation part 200. If so, the cement injection tube 100 combined by the combiner 300 is separated from the balloon inflation part 200 (S 140).
[42] In other words, as the bone cement 60 injected into the interior of the backbone to make the backbone stand is quickly set in the balloon inflation part 200, a heat generated from the bone cement 60 during quick setting is cut off by the balloon inflation part 200 and does not get in direct contact with the nerves of the backbone, and there is no concern about the stimulus of the injected bone cement 60 to the nerves. Hence, a concern about pains caused by a surgical operation is reduced.
[43] While the balloon inflation part 200 is inflated, the rear inflation part is more inflated than the front inflation part and hence, a rear part of the backbone is more made stand than a front part and even a work can be performed efficiently.
[44] In the balloon catheter for backbone treatment according to the present invention, a predetermined cavity is secured in the interior of the backbone without separately injecting the inflation gas or inflation liquid 50 for inflating the balloon inflation part 200. Also, there is no need for separately providing an instrument for inflating the balloon inflation part 200 and an instrument for injecting the bone cement 60 and hence, a surgical operation is simple and a work time is reduced.
[45]
Industrial Applicability
[46] The present invention is very useful in that bone cement is injected while inflating a balloon inflation part without injecting a separate inflation air or inflation liquid, thereby greatly simplifying a work and reducing a surgical operation time. Also, a heat generated from the injected bone cement during quick setting is cut off by the balloon inflation part and hence, there is no concern about nerve destruction.
[47] While the present invention has been described and illustrated herein with reference to the preferred embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made therein without departing from the spirit and scope of the invention. Thus, it is intended that the present invention covers the modifications and variations of this invention that come within the scope of the appended claims and their equivalents.