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A pvp vertebral body directional expansion balloon device and its manufacturing method

A manufacturing method and balloon technology, which is applied in the field of medical devices, can solve problems such as unsatisfactory balloons, and achieve the effect of avoiding refracture and aggravating fracture damage

Active Publication Date: 2018-12-04
NANJING DRUM TOWER HOSPITAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no ideal solution for balloon inflation clinically, and it can only be adjusted according to the doctor's operating feel

Method used

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  • A pvp vertebral body directional expansion balloon device and its manufacturing method
  • A pvp vertebral body directional expansion balloon device and its manufacturing method
  • A pvp vertebral body directional expansion balloon device and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 , figure 2 , image 3 with Figure 4 As shown, a PVP vertebral body directional dilation balloon device includes a catheter 1, a Y-shaped connector 2, a balloon 3 and a guide rod 4, and one end of the catheter 1 is connected with a Y-shaped connector 2, and the catheter 1 The other end of the guide rod 4 is connected to the balloon 3, and one end of the guide rod 4 is sequentially passed through a joint of the Y-shaped connector 2 and the catheter 1 and then extends into the balloon 3. The rotating assembly on the outside of the catheter 1, the rotating assembly includes a fixed sleeve 6, a block piece 7 arranged at the front end of the fixed sleeve 6, a knob 8 arranged at the tail of the fixed sleeve 6 and a movable set on the fixed sleeve The block 5 on the outer circumference of the tube 6, the baffle piece 7 is arranged on the outside of the balloon 3, the baffle piece 7 is composed of a baffle piece 71, a number of baffle piece 2 72 and a conne...

Embodiment 2

[0045] Such as figure 1 , figure 2 , image 3 with Figure 4 The manufacturing method of the PVP vertebral body directional expansion balloon device shown comprises the following steps:

[0046] Step S01, adding raw materials into the injection molding machine, injecting the melted raw materials into the mold of the Y-shaped connector 2, cooling for 10 to 15 minutes, opening the mold, taking out the blank of the Y-shaped connector 2, and enlarging the Y shape with a hole expander. The connection hole of the joint of the Y-shaped connector 2, the connection hole orifice of the joint of the Y-shaped connector 2 is chamfered with a chamferer;

[0047] Optimally, the cooling time in step S01 is 13 minutes.

[0048] Step S02, adding raw materials into the injection molding machine, injecting the raw materials into the mold of the fixed sleeve 6 after melting, cooling for 5 minutes to 8 minutes, opening the mold, taking out the blank of the fixed sleeve 6, and expanding the fix...

Embodiment 3

[0060] Such as figure 1 , figure 2 , image 3 with Figure 4 As shown, a PVP vertebral body directional dilation balloon device includes a catheter 1 and a guide rod 4, one end of the catheter 1 is connected with a Y-shaped connector 2, and the other end of the catheter 1 is connected with a balloon 3, so One end of the guide rod 4 is sequentially passed through a joint of the Y-shaped connector 2 and the catheter 1 and then extended into the balloon 3, and the guide rod 4 located in the cavity of the balloon 3 is provided with an upper ring. There are two developing rings 11, and the developing rings 11 are made of radiopaque materials. When in use, the developing rings 11 can determine the specific position of the balloon under the CT machine, and also include a rotating assembly, which is sleeved on the The outer side of the catheter 1, the rotating assembly includes a fixed sleeve 6 and a blocking piece 7 arranged on the fixed sleeve 6, the blocking piece 7 is located ...

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Abstract

The invention discloses a PVP centrum directional expansion balloon device and a manufacturing method thereof. The device comprises a conduit and a guide rod and further comprises a rotary component, wherein the rotary component comprises a fixed sleeve and a separation blade part arranged on the fixed sleeve, the separation blade part comprises a first separation blade and at least one second separation blade, the first separation blade can block a pre-blocked portion by rotating the fixed sleeve, and the second separation blades can block at least one another pre-blocked portion by moving the second separation blades in the peripheral direction of the fixed sleeve. The device can realize direction expansion which can not be achieved currently. By adjusting the position of the separation blade part on the head portion of the fixed sleeve through a knob and adjusting the positions of the second separation blades through the movement of a clamp block in a clamp groove, multiple bone fracture portions which can not be expanded can be blocked so that a balloon can expand towards a preset stretching and restoration position, and in this way, bone fracture injury degree of a broken portion can not be increased and refracture is avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a PVP vertebral body directional expansion balloon device and a manufacturing method thereof. Background technique [0002] Vertebral compression fractures have a high incidence in the elderly population. The degree of collapse and compression of each part of the vertebral body at the fracture site is different. For the part with a high degree of compression, it needs to be stretched and reset, and filled with bone cement and other fillers, referred to as PVP surgery. . After the bone cement solidifies, it can increase the strength and stability of the vertebral body, which ensures that the restored vertebral body will not be compressed again, and will not cause the height of the vertebral body and compress the nerve again. At present, there is no ideal solution for the expansion of the balloon clinically, and it can only be adjusted according to the doctor's operating f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/88
CPCA61B17/8855
Inventor 王银河耿建平
Owner NANJING DRUM TOWER HOSPITAL
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