The utility model provides a centrum expansion balloon catheter. The centrum expansion balloon catheter comprises a balloon assembly, a sheath, a handle assembly and a supporting wire assembly in the axial direction in sequence. The balloon assembly comprises a double-cavity tube, developing marks, a supporting wire and a balloon, wherein the developing marks are arranged in the double-cavity tube, one end of the supporting wire is located in the double-cavity tube, and the other end of the supporting wire and a supporting nut form the supporting wire assembly, one end, connected with the supporting nut in a threaded mode, of the supporting wire is flat,

the balloon is arranged outside the double-cavity tube in a sleeved mode and encircles the double-cavity tube to form a closed balloon cavity. According to the centrum expansion balloon catheter, the double-cavity tube is adopted to replace an original core tube and an original outer tube, so the centrum expansion balloon catheter is easier to assemble, the production efficiency is improved, the manufacturing cost is reduced and the manufacturing risks in the production process are reduced. In addition, because one end, connected with the supporting nut, of the supporting wire is flat, the bond area between the supporting wire and the supporting nut is larger and the supporting wire is connected with the supporting nut more firmly.

A vertebral dilatation balloon catheter, the balloon assembly comprising successively axially, the sheath, the handle assembly and the support wire assembly, wherein said assembly comprises a double lumen balloon tube; developing markers, filled to the said double-lumen tube; supporting wire, one end of the double-lumen tube located inside; the other end of the support wire assembly is formed with the support screw cap; and support one end of the support wire threaded screw cap is flat; balloon sleeved The double-lumen tube outside and around the double-lumen balloon to form a closed cavity.
According to claim 1, wherein the balloon catheter, wherein said double-lumen tube is provided with a liquid hole.
Balloon catheter according to claim 2, characterized in that said developing markers are disposed before and after the liquid out of the hole.
4. The balloon catheter according to claim 1, characterized in that said tube comprises a double lumen integrally formed of two equal diameter pipes.
Said handle; inner sleeve 5. balloon catheter according to claim 1, characterized in that said handle assembly includes a handle, cannula, the sheath and the support wire connection assembly, said support of said wire is located along the axial direction of the rotation handle a circle groove.
6. The balloon catheter according to claim 5, characterized in that the angle between the handle and the sleeve formed is 20~90. .
According to claim 6, wherein the balloon catheter, characterized in that said hollow handle by a handle.
Balloon catheter according to claim 1, characterized in that said double-lumen tube in a single tube diameter smaller than the diameter of the support wire.

One kind of vertebral balloon dilatation catheter

Technical Field

[0001] The invention relates to the field of medical devices, and more particularly, to a vertebral balloon dilatation catheter.

Background

[0002] China's aging population growing, increasing every year caused by osteoporosis and vertebral compression fracture patients, elderly people on life expectancy and quality of life of constant pursuit, income levels continue to increase, making the choice vertebroplasty Minimally invasive surgical treatment of vertebral compression fracture patients will be more and more. Vertebral dilatation balloon catheter is used in combination vertebroplasty equipment package is mainly used when doing percutaneous balloon kyphoplasty surgery, expansion of the vertebral body to form a cavity for injection of bone cement to restore, stabilize the vertebral body. [0003] Currently, the vertebral balloon dilatation catheter is the inner wall of the outer tube, the outer wall of the core tube, three lateral branches, the balloon cavity consisting of a confined space, further comprising a support wire, sheath, the handle assembly and a support wire assembly, But the suit craft outer tube and core tube complex, high processing costs. And the art of balloon catheters supporting wire assembly is not firmly connected; in addition, the prior art used a balloon catheter is easily misuse continue to be used to harm the health of patients.

DISCLOSURE

[0004] In view of this, the utility model provides a vertebral balloon dilatation catheter, the support wire components are connected securely, safety and low cost.

[0005] To achieve the above object, the present utility model provides the following technical solutions:

[0006] A vertebral balloon dilatation catheters, including balloon assembly axially successively sheath, the handle assembly and a support wire assembly, the assembly includes a double-lumen balloon;

[0007] The developing markers, filling in the double-lumen tube;

[0008] the support wire, one end of the double-lumen tube located inside; the other end of the screw cap is formed with a support wire assembly support; and support one end of the support wire threaded screw cap is flat;

[0009] The balloon package in the double-lumen tube outside and around the double-lumen balloon to form a closed cavity.

[0010] Preferably, there is provided a liquid hole on the double-lumen tube.

[0011] Preferably, said developing flag are provided before and after the liquid out of the hole.

[0012] Preferably, the double lumen tubing comprising two integrally formed of equal diameter pipes.

[0013] Preferably, the handle assembly includes a handle,

[0014] casing, connecting the jacket and the support wire assembly, said support wire located within the cannula; the handle along the axial direction of the rotation handle a circle groove.

[0015] Preferably, the angle between the sleeve and the handle is formed of 20-90 °.

[0016] Preferably, the handle is made hollow handle.

[0017] Preferably, the diameter of the support wire of the double-lumen tube is smaller than the diameter of a single tube.

[0018] The utility model provides a vertebral expansion balloon catheters, including balloon assembly axially successively sheath, the handle assembly and a support wire assembly, the balloon assembly comprises a double-lumen tube; developing markers, filled in the double-lumen tube; supporting wire, one end of the double-lumen tube located inside; the other end of the screw cap is formed with a support wire assembly support; and support one end of the support wire threaded screw cap is flat; the balloon, Set in the double-lumen tube outside and around the double-lumen balloon to form a closed cavity. The utility model provides vertebral expansion of the use of a double-lumen balloon catheter tube to replace the original core and outer tubes, so that the balloon catheter assembly easier, improve production efficiency and reduce processing costs, but also reduces the Production and processing risks. In addition, since the end of the support wire connected to the support nut is flat, so with the support Nut larger bonded area, the connection more secure.

Brief Description

[0019] In order to more clearly illustrate the utility model embodiments or the prior art technical solutions, the following example will be the implementation of the accompanying drawings or described in the prior art requires the use of a simple introduction, Obviously, the description below The drawings are merely the utility model some embodiments, those of ordinary skill in terms of creative effort without precondition, you can also obtain other drawings based on these drawings.

Vertebra [0020] FIG. 1 is a utility model provided by the embodiment of the balloon catheter dilation structure diagram;

[0021] FIG. 2 is a schematic view of a support wire utility model structure provided in the embodiment.

DETAILED DESCRIPTION

[0022] The invention discloses a method of assembling simple components are connected firmly supporting wire dilatation balloon catheter vertebrae.

[0023] The invention will now be combined with the new embodiment of the drawings, an embodiment of the present utility model technical program clear, complete description of embodiments, it is clear that the described embodiments are only part of the utility model, rather than all embodiments. Based on the utility model embodiment, all other embodiments by those of ordinary skill in the creative work did not make the premise obtained, are within the scope of the present utility model protection.

[0024] FIG. 1, a vertebral invention shown in Figure 2 utility model balloon dilatation catheters, including balloon assembly axially in turn, jacket 6, 7 and handle assembly support wire assembly 8, the Ball bladder assembly includes a double-lumen tube 3; developing numeral 1, filling in the double-lumen tube 3; the support wire 81, located at one end of the double-lumen tube inside; the other end of the screw cap 82 is formed with a support wire assembly support 8; the supporting one end of the support wire threaded screw cap is flat; balloon 4, packaged in a double-lumen tube 3 outside and around the double-lumen balloon to form a closed cavity 41.

[0025] According to the present utility model, the art of balloon catheters used with a core tube and the outer tube is fitted, and the utility model using double-lumen tube instead of the core tube and the outer tube, since the utility model is preferable to use a double-lumen tube is integrally formed two equal diameter pipes, so reducing installation difficulty, at the same time, the balloon can be a good package with the double-lumen tube. Improve production efficiency and reduce processing costs, but also reduce the production and processing risks.

[0026] there is a liquid hole 2 according to the utility model, the double-lumen tube set. I remember the developing standard are provided in the fluid around the hole. The utility model is preferable to use a double-lumen tube is transparent, it is possible to clearly see the position and the position of the support wire balloon assembly in developing markers, so depending on the situation to adjust the support wire. Smaller than the diameter of the support wire single double lumen tube diameter of the tube.

[0027] According to the present utility model, the handle assembly includes a handle 72, a casing 72, connecting the jacket 6 and the support wire assembly 8, said support wire located within the casing; the handle along the axis of the handle rotating a circle groove 73. The angle formed by the sleeve and the handle is 20-90 °. The handle is made of hollow handle. So after balloon catheter use, to the groove 73 is biased so that the handle can break, so that the balloon catheter can not be used again, to maintain the health of patients.

[0028] In summary, vertebral expansion of the utility model provides the use of a double-lumen balloon catheter tube to replace the original core and outer tubes, so that the balloon catheter assembly easier, improve production efficiency and reduce the processing costs, but also reduces the risk of production and processing. In addition, since the end of the support wire connected to the support nut is flat, so with the support Nut larger bonded area, the connection more secure.

[0029] The various embodiments of the present specification using progressive manner described, different from all the other embodiments of the example highlights of each of the embodiments, the same or similar portions between the various embodiments can see each other.

[0030] The above description of the disclosed embodiments, so that the skilled in the art to make or use the utility model. These various modifications to the field of professional and technical personnel embodiments will be apparent, the general principles defined herein may be made without departing from the spirit of the utility model or range, implemented in other embodiments. Thus, the utility model will not be limited to these embodiments shown herein, but rather to meet consistent with the principles disclosed herein, and novel features of the widest range.