The utility model relates to a biaxially double-lumen balloon catheter comprising an outer tube, core tube, a balloon and a handle assembly, one end of the handle assembly of the outer tube connecting the other end of the outer tube and the proximal end of the balloon sealed connection ; core tube penetrates the outer tube, one end of the core tube connecting the handle assembly is connected, the other end of the core tube extending outer tube, and the distal end of the outer wall of the core tube and balloon sealingly connected; outer tube for connecting the proximal end of the balloon an end to the distal end of the balloon extending forwardly

extending pipe section is formed, to form a sealed connection between the extension pipe and a balloon at the distal end of the outer wall of the core tube, opened a hole extending pipe sections, the opening communicates with the lumen of the outer tube and balloon lumen. The utility model adopts double-lumen balloon catheter instead of biaxial uniaxial double-lumen balloon catheter, the balloon upon expansion, the axial resistance increases, reducing the axial expansion of the scope of the balloon, the balloon catheter to improve controllability and accuracy, improve the overall performance of the product.

A biaxially double lumen balloon catheter, which is characterized by comprising an outer tube (4), the core tube (2), the balloon (3) and a handle assembly (6), said outer tube (4) at one end connected to the handle assembly (6), said outer tube (4) and the other end of the balloon (3) is connected to the proximal end of the seal; said core tube (2) is provided through the outer tube (4), the core the other end of the end of the tube (2) is connected to the handle assembly (6), said core tube (2) extending outer tube (4), and the core tube (2) and the outer wall of the balloon (3) is connected to the distal end of the seal ; one end of said outer tube (4) for connecting the balloon (3) extends forwardly to the proximal end of the balloon (3) is formed in the distal end of the extension pipe (11), the extending pipe section (11) and the balloon (3 ) at the distal end of the core tube (2) forming a sealed connection between the outer wall, opened a hole (12) (11) on the extension tube section, the opening (12) communicating the outer tube (4) cavity and ball the capsule (3) cavity.
According to claim I wherein the biaxially double-lumen balloon catheter, characterized in that the outer tube (4) and the balloon (3) is connected by welding the proximal end of said outer tube (4) and balloon (3) the distal end of the core tube (2) between the inner wall of the solder connection.
According to claim I wherein the biaxially double-lumen balloon catheter, wherein the balloon outer tube (3) (4) is provided with a plurality of further developing the marker coating (I).
According to claim I wherein the biaxially double-lumen balloon catheter, characterized in that the outer tube (4) near the handle assembly (6) is provided near the cordon coating (9).
I claimed to be the double-lumen balloon catheter biaxial, characterized by further comprising a protective sleeve (8), said protective sleeve (8) socket in the balloon (3) outside.

Biaxial double lumen balloon catheter
TECHNICAL FIELD

[0001] The utility model relates to a biaxially double-lumen balloon catheter.

Background technique

[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, vertebral expansion cavity is formed so as to restore the injection of bone cement, stabilizing vertebral bodies.

[0003] Existing vertebral dilatation balloon catheter shown in Figure 1, includes a developing numeral 10, core tube 20, the balloon 30, the outer tube 40, the sheath 50, the handle assembly 60, a support wire assembly 70, the protective cover cordon components.

[0004] The dual-chamber that is, from the inner wall of the outer tube, the outer wall of the core tube, three collateral (the handle assembly), liquid injection chamber cavity consisting of the balloon and the inner wall consisting of a core guidewire lumen. Uniaxial refers balloon through the hollow portion of the core tube, the outer tube and the proximal end of the balloon welding, and terminates at the proximal end of the balloon.

[0005] FIG. 1 is a uniaxial double-lumen balloon catheter, the balloon will not only expand radially expanded at the same time the expansion of the core tube axially driven by the force of such poor control balloon position, reduce product accuracy and controllability.

Utility Model Content

[0006] The technical problem to be solved is the utility model: to overcome deficiencies of the prior art and to provide a biaxially double lumen balloon catheter.

Technical Solution [0007] The utility model is used for solving the technical problem is: a biaxially double lumen balloon catheter, includes an outer tube, core tube, a balloon and a handle assembly, said one end of the outer tube is connected to the handle assembly , and the other end of the outer tube and the proximal end of the balloon sealingly connected;

[0008] The core tube through said outer tube is provided, connected to one end of the core tube handle assembly connected to the other end of the core tube extending outer tube, and the distal end of the outer wall of the core tube and balloon sealingly connected;

One end of [0009] the outer tube for connecting the proximal end of the balloon to the distal end of the balloon extending forwardly extending pipe section is formed, to form a sealed connection between the outer wall of the core tube at the distal end of the extension pipe and balloon, the extend the pipe segment opened with an opening, said opening communicating outer tube lumen and a balloon lumen.

[0010] Further, the outer tube and the proximal end of the balloon is connected by welding, the outer tube and welded connection between the balloon and the distal end of the inner wall of the core tube.

[0011] Further, the outer tube is further provided inside the balloon a number of the developing mark coating.

[0012] Further, the outer tube near the vicinity of the handle assembly is provided with a coating cordon.

[0013] Further, further comprising a protective cover to protect the access in the condom balloon outside.

[0014] The utility model has the beneficial effect is: relying on the outer tube in the inner balloon extension tube segment, the balloon upon expansion, the axial resistance increases, to avoid the emergence of the core tube axial expansion of the phenomenon.

[0015] The utility model adopts double-lumen balloon catheter instead of biaxial uniaxial double-lumen balloon catheter, the balloon upon expansion, the axial resistance increases, reducing the scope of the balloon along the axial expansion, improve balloon catheter controllability and accuracy, improve the overall performance of the product.

Brief Description

[0016] below in conjunction with the accompanying drawings of the utility model for further instructions.

[0017] FIG. 1 is a schematic view of a traditional uniaxial double-lumen balloon catheter;

[0018] wherein, 10, the developing markers, 20, core tube 30, balloon 40, outer tube 50, the sheath 60, the handle assembly 70, a support wire assembly;

[0019] FIG. 2 is a schematic view of the utility model biaxially double-lumen balloon catheter;

[0020] FIG. 3 is a partial schematic view of the front of the double-lumen balloon catheter biaxially;

[0021] FIG. 4 is the utility model double-lumen balloon catheter biaxially schematic diagram of the mounting sleeve protection;

[0022] where a developing mark coating, 2, core tube, 3, balloon 4, the outer tube, 5, jacket, 6, the handle assembly, 7, a support wire assembly, 8, and protective sleeve, 9, cordon coating 11, the extension pipe 12, the openings.

DETAILED DESCRIPTION

[0023] The present utility model will now be further illustrated by the accompanying drawings. These are simplified schematic drawings only schematically illustrate the basic structure of the utility model, so it displays only the constitution and the utility model concerned.

[0024] FIG. 2 FIG. 3 A biaxially double lumen balloon catheter 3, comprises an outer tube 4, the core tube 2, the sheath 5, the support wire assembly 7, the balloon 3 and a handle assembly 6, the outer tube 6 Connect one end of the handle assembly 4, the other end of the outer tube 4 and the proximal end of the balloon 3 is sealed connection.

[0025] the core tube 2 is provided through the outer tube 4, the core tube 2 is connected to one end of the handle assembly 6 is connected, the other end of the core tube 2 extending outer tube 4 and the outer wall of the core tube 2 and the distal end of the balloon 3 is sealed connection . Forming a sealed connection for connecting one end of the outer tube 4 extends forwardly of the balloon 3 to the proximal end of the distal end of the balloon 3 is formed extending pipe 11, which extends between the two outer core tube section 11 and the balloon 3 at the distal end of tube , extension tube segment opened with an opening 12 on 11, the opening 12 communicating outer tube 4 3 lumen and a balloon lumen.

[0026] To improve the strength of the connection of the outer tube 4 and the proximal end of the balloon 3 is connected by welding the outer tube 4 and the distal end of the balloon 3 and the core tube welded connection between the second inner wall.

[0027] The balloon 3 within the outer tube 4 is also provided with a number of developing mark coating I. Outer tube 4 near the handle assembly 6 are provided near the cordon coating 9.

As shown in [0028] FIG. 4, further comprising a protective cover 8, 8 socket protective cover 3 in the balloon outside the protective cover 8 may play a protective effect on the balloon 3, avoid being outside was torn.

[0029] The utility of biaxial double-lumen balloon catheter, the working principle is: the liquid through the handle assembly 6 along the inner wall of the outer tube 4 and the outer wall of the core tube 2 consisting of a cavity extending through the tube section 11 of the opening 12 3 into the balloon, the balloon 3 reaches the filling purposes.

[0030] The biaxially through the core tube 2 and the outer tube 4 implementation, the outer tube 4 and the proximal end of the balloon 3, the distal end of the welding, and terminates at the distal end of the balloon 3, while the outer tube 4 and the outer wall of the core tube 2 welded in order to achieve sealing effect.

[0031] The utility model adopts double-lumen balloon catheter instead of biaxial uniaxial double-lumen balloon catheter 3, when the expansion of the balloon 3, the axial resistance increases, reducing the balloon 3 in the axial expansion of the range, improve ball controllability and accuracy of balloon catheter to improve the overall performance of the product.

[0032] In the above according to the present utility model is an ideal embodiment of the Enlightenment, through the contents of the above description, the relevant staff completely without departing from the scope of the technical concept of utility model, performed a variety of changes and modifications. The utility model of technical scope is not limited to the contents of the instructions on the necessary scope to be determined according to its technical scope of the claims.