KR101638232B1 - Balloon dilator - Google Patents

Balloon dilator Download PDF

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Publication number
KR101638232B1
KR101638232B1 KR1020140081892A KR20140081892A KR101638232B1 KR 101638232 B1 KR101638232 B1 KR 101638232B1 KR 1020140081892 A KR1020140081892 A KR 1020140081892A KR 20140081892 A KR20140081892 A KR 20140081892A KR 101638232 B1 KR101638232 B1 KR 101638232B1
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KR
South Korea
Prior art keywords
locking nut
locking
formed
side
balloon
Prior art date
Application number
KR1020140081892A
Other languages
Korean (ko)
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KR20160003460A (en
Inventor
이병갑
Original Assignee
이병갑
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Priority to KR1020140081892A priority Critical patent/KR101638232B1/en
Publication of KR20160003460A publication Critical patent/KR20160003460A/en
Application granted granted Critical
Publication of KR101638232B1 publication Critical patent/KR101638232B1/en

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Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a balloon expander for inserting a balloon into a blood vessel for expanding a stent to be inserted into a blood vessel and expanding the blood vessel.
The balloon expander according to the present invention is a balloon expander for expanding a balloon used for stenting. The balloon expander includes a body having a cylinder formed on the inner side thereof and a discharge port formed on the lower side thereof, an upper cover coupled to the upper side of the body, A stopper which is provided inside the upper cover and is coupled to the lever and has a spiral on one side, a stopper which is in close contact with the stopper, and the other side is in close contact with the inside of the upper cover, And a piston which is inserted into a cylinder formed in the body and has a screw formed on the outer side thereof.

Description

Balloon dilator {Balloon dilator}

The present invention relates to a balloon expander for introducing air into an inflated balloon for expanding a stent to be inserted into a blood vessel and expanding the inflated blood vessel. The balloon expander is improved in structure to withstand a higher pressure than the prior art, And the operation of closing and opening the inside of the cylinder is simplified.

Generally, when blood vessels are blocked by cholesterol and foreign substances, a ring or tubular stent made of a net structure is inserted into blood vessels to expand and reinforce blood vessels.

In order to insert and fix the stent into the blood vessel, a stent with a balloon is inserted into the blood vessel, and then a wind is inserted into the balloon, so that the stent is expanded by the balloon and the expanded stent is fixed to the blood vessel.

A balloon expander is used to inflate and expand the balloon. The balloon expander is formed in the shape of a syringe, a nozzle is coupled to a discharge port, and an end of the nozzle is coupled to the balloon to inject wind.

The balloon for expanding the stent must maintain the air pressure injected into the balloon until the stent is fixed to the blood vessel in a state in which the balloon is expanded.

However, the existing balloon expander has a problem that the piston must be continuously pressed to maintain the compressed state of the piston.

In addition, since the pressure applied to the balloon can not be finely adjusted, if the pressure applied to the balloon becomes high, there is a problem of breakage of the blood vessel. If the pressure applied to the balloon is low, the stent is not fixed to the blood vessel.

[Prior Art Literature]

[Patent Literature]

Korean Patent No. 10-1112717

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a balloon expander which can maintain the pressure applied to the balloon expander without any change, can control the pressure more finely and has a structure improved to withstand a higher pressure than the prior art, And an operation of closing and opening the balloon expander is simplified.

The balloon expander according to the present invention

A balloon expander for expanding a balloon used for stenting,

A cylinder having an inner side and a discharge port formed on a lower side,

A mount coupled to the upper side of the main body,

A pivotally coupled locking handle of the mount,

A first locking nut and a second locking nut positioned while facing each other in the mount,

A piston inserted into the cylinder in the body and having a screw formed on the outer side thereof,

And a stopper coupled to the piston end and reciprocating along the cylinder in the main body to seal the cylinder,
The mount is provided with a pair of protrusions,
Wherein a protrusion is formed at an end of the protrusion, the protrusion is engaged with the protrusion of the main body,
And the mount is provided with a pair of guide portions forming a rectangular space.

Preferably,

And a handle is additionally provided on the upper side of the piston.

Also preferably,

The locking handle is characterized in that a pair of locking projections are formed.

Also preferably,

A pair of projections is provided in the body,

And an end of the protrusion is formed with a latching protrusion.

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Also preferably,

Wherein the first locking nut and the second locking nut are in a rectangular shape and are seated in the mount,

Wherein one side of the first locking nut is formed with a semicircular portion, a recess portion is formed on the other side opposite to the semicircular portion,

The second locking nut has a semi-circular portion on one side and a recessed portion on the other side.

Also preferably,

And the screw formed on the outer side of the piston is coupled by a helix formed on the stopper.

Preferably, the locking handle is rotated in one direction so that the rollers of the first locking nut and the second locking nut are pressed by the protrusions of the locking handle such that the first locking nut and the second locking nut are in a state of being in an interconnection state The piston is held by the first locking nut and the second locking nut while the locking handle rotates in the other direction so that the first locking nut and the second locking nut, When the contact with the roller is released, the first locking nut and the second locking nut are opened by the force of the compression spring mounted on the opposed upper and lower holes of the first locking nut and the second locking nut, .

According to the present invention, the pressure applied to the balloon expander is maintained unchanged, the pressure can be finely adjusted, the structure is improved to withstand a higher pressure than the conventional one, and the cylinder interior is closed and opened before and after the operation This has a simplified effect.

In addition, according to the present invention, the first locking nut and the roller mounted on the second locking nut serve as a bearing and have the effect of making the movement easy.

1 and 2 are perspective views of an inflator according to the present invention;
3 is a sectional view of Fig. 2;
4 is a plan view of a locking handle in a balloon expander according to the present invention;
5 to 7 are front views, AA 'sectional views, and BB' sectional views of the mount in the balloon expander according to the present invention.
8 to 10 are a front view, a sectional view taken along the line AA ', and a sectional view taken along line BB' of the first locking nut in the balloon expander according to the present invention.
11 and 12 are a front view and a BB sectional view of a second locking nut in a balloon expander according to the present invention.
13 is a front view and a side view of the stopper in the balloon expander according to the present invention.
14 is a longitudinal sectional view of a balloon expander according to the present invention in a closed state.
15 is a longitudinal sectional view of the balloon expander according to the present invention in an open state.
16 is a perspective view of a balloon expander according to the present invention, similar to FIG.
17 and 18 are views showing examples of an exploded perspective view of the balloon expander according to the present invention.
19 is a sectional view and a side view showing a part of a main body in the balloon expander according to the present invention.
20 is a view showing a piston in a balloon expander according to the present invention.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. It should be noted, however, that the embodiments described below are illustrative of one preferred embodiment of the present invention, and examples of such embodiments are not intended to limit the scope of the present invention. The present invention can be variously modified without departing from the technical idea thereof.

FIG. 1 is a perspective view of a balloon expander according to an embodiment of the present invention, FIG. 2-3 is an exploded perspective view of the balloon expander, and FIG. 4-5 is a sectional view of the balloon expander.

The balloon expander according to the present invention is a balloon expander for expanding a balloon used for stenting,

A main body 10 having a cylinder on its inner side and a discharge port on its lower side,

A mount 20 coupled to the upper side of the main body,

A locking handle 30 rotatably coupled to the mount 20,

A first locking nut 40 and a second locking nut 50 which are positioned while facing each other in the mount 20,

A piston 80 inserted into the cylinder 12 in the body 10 and having a screw 82 formed on the outer side thereof,

And a stopper (70) coupled to an end of the piston (80) and reciprocating along the cylinder (11) in the main body (10) to seal the cylinder (11).

And a handle 60 is further provided on the upper side of the piston.

Reference numeral 62 denotes a back cover fixed to the mount 20.

The locking handle 30 is formed with a pair of locking protrusions. The locking protrusion includes a vertical protrusion 32a vertically protruding from a predetermined position and an extended portion 32b formed in an arc shape. The corresponding protruding airway vertical protrusion 34a and the extended portion 34b formed in an arc shape are formed.

The body 10 is provided with a pair of protrusions 12 and 14,

And end portions of the projecting portions 12 and 14 are formed with hooking jaws.

The mount 20 is provided with a pair of projections 22 and 24,

The protrusions 22 and 24 are engaged with the protrusions 12 and 14 of the main body 10, respectively.

The mount 20 has a pair of guide portions for forming a rectangular space for interposing the first locking nut 40 and the second locking nut 50 to be described later. The guide portion includes a parallel portion 21 And an extended portion 23 extending in an arc shape at one end of the parallel portion 21. The guide portion also has an extending portion 27 extending in an arc shape at the one end of the parallel portion 25 and the parallel portion 25. The pair of guide portions are opposed to each other through the parallel portions and form a rectangular space through the extended portions. A first locking nut 40 and a second locking nut 50, which will be described later, are seated and placed in the rectangular space. The diagonal portion of the rectangular space becomes a space in which the extended portions 32b and 34b of the locking handle 30 move in the open state.

The unexplained reference numerals 21a and 25a serve as stoppers for preventing the extension portions 32b and 34b of the locking handle 30 from moving further.

Characterized in that the first locking nut (40) and the second locking nut (50) are of rectangular shape and are seated in the mount (20)

One side of the first locking nut 40 is formed with a semicircular part 39 and a recess 35 is formed on the opposite side of the first locking nut 40. The recessed part 35 is provided with a rod- Respectively. Reference numerals 36 and 38 denote insertion holes into which compression springs (not shown) are mounted.

The compression spring is not shown but is mounted on the insertion holes 36 and 38 of the first locking nut 40 and the second locking nut 50 and is generally expanded to form a first locking nut 40 and a second locking nut 40. [ It has a property of opening the nut 50 to the open state. Since the shape of the compression spring is a general description, a detailed description will be omitted.

The first locking nut 40 has four projections 31, 32, 33, and 34 formed on one side thereof.

One side of the second locking nut 50 is formed with a semicircular portion 49 and a recess portion 49 is formed on the opposite side of the second locking nut 50. The recess portion 49 has a rod- The roller 96 is seated. Reference numerals 46 and 48 denote insertion holes into which compression springs (not shown) are mounted.

The rollers 92 and 96 mounted on the first locking nut 40 and the second locking nut 50 serve as bearings and have the effect of making the rotation motion easier.

The second locking nut 50 has four recessed portions 41, 42, 43, and 44 formed at one side thereof from the side so that the projecting portions 31, 32, 33, and 34 of the first locking nut 40, (Closing action).

The piston (80) is characterized in that a screw (82) formed on the outer side is coupled to a spiral formed on the stopper (70).

When the first locking nut 40 and the second locking nut 50 are mounted in the mount 20 and are pressed by the arc-shaped extension portions 32b and 34b of the locking handle 30, And is spaced apart from each other when the contact with the circular extension portions (32a, 34b) of the locking handle (30) is released.

As the locking handle 30 is rotated in one direction, the rollers 92 and 96 of the first locking nut 40 and the second locking nut 50 are engaged with the protrusions 32b and 34b of the locking handle 30, The piston 80 is held by the first locking nut 40 and the second locking nut 50 while the first locking nut 40 and the second locking nut 50 are in contact with each other, And the protruding portions 32b and 34b of the locking handle 30 and the rollers of the first locking nut 40 and the second locking nut 50 are rotated while the locking handle 30 rotates in the other direction 92 and 96 are released, by the force of a pair of compression springs (not shown) mounted on the opposed upper and lower holes of the first locking nut 40 and the second locking nut 50, The nut 40 and the second locking nut 50 are opened and the piston 80 is released.

A transparent window is formed on the front surface of the main body 10, and a transparent screen is displayed on the transparent window.

A discharge port 15 communicating with the cylinder 11 formed in the main body 10 is formed on the lower side of the main body 10. A nozzle is coupled to the discharge port (15).

In the space formed in the main body 10, a pressure gauge capable of checking the pressure is provided. The pressure gauge measures the pressure of the air flowing through the communication hole and displays the measurement value.

Hereinafter, the operation state of the present invention will be described.

The use of the balloon expander of the present invention first rotates the locking handle 30 provided in the balloon expander. When the locking handle 30 is rotated as described above, the extending portions 32b and 34b of the locking handle 30 are rotated while being engaged with the extended portions 27 and 23 of the mount 20, And 34b are moved downward while pressing the rollers 92 and 96 while being interfaced with the rollers 92 and 96 of the first locking nut 40 and the second locking nut 50, The end portions of the portions 32b and 34b contact with the protrusions 21a and 25a serving as the stoppers and are no longer moved. As described above, the piston 80 is fixed in the closed state (see Fig. 14). At this time, the piston 80 can not move up and down.

On the other hand, when the locking handle 30 is rotated in the reverse direction, the locking operation is reversed. The extending portions 32b and 34b of the locking handle 30 which have been engaged with the projecting portions 21a and 25a while the locking handle 30 is rotated move away from the projecting portions 21a and 25b, The rollers 92 and 96 that are pressed against the rollers 92 and 96 of the locking nut 40 and the second locking nut 50 receive a force to be opened by the force of a pair of compression springs And is then interfaced with the extension portions 27, 23 of the mount. As described above, the piston 80 is movable up and down in an open state (see Fig. 15).

The piston 60 is moved upward to move the piston 80 upward to introduce air into the cylinder 11.

The nozzle is connected to a balloon provided in the stent inserted into the blood vessel, or to a machine and apparatus connected to the balloon and separately injecting air.

When the knob 60 is rotated and then the locking handle 30 is closed again, the piston 80 is moved downward by the screw 82 formed on the piston 80 and the spiral formed on the stopper 70 .

Therefore, air is injected into the understanding balloon in the movement of the piston (80). The user checks the amount of air injected into the balloon through the transparent window formed in the main body 10, and checks the pressure applied to the balloon while viewing the pressure gauge.

After the stent is tightly attached to the blood vessel, a predetermined pressure is checked. After confirming that the stent is fixed to the blood vessel, the locking handle 30 is rotated to move the stopper 70 from the piston 80 After the piston 80 is separated, the piston 80 is moved upward to remove the air blown into the balloon and remove the balloon.

The balloon expander of the present invention is formed so that the piston can be moved back and forth more easily after the opening and closing states are made by the locking handle. In addition, the pressure applied to the balloon by the action of rotating the piston by the screw formed on the piston and the screw formed on the stopper It is possible to prevent damage to blood vessels due to excessive pressure.

The embodiments according to the present invention have been described above. However, the present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the technical concept of the present invention.

The present invention relates to a locking device and a locking device for locking a locking nut in a locking device,

Claims (8)

  1. A balloon expander for expanding a balloon used for stenting,
    A cylinder having an inner side and a discharge port formed on a lower side,
    A mount coupled to the upper side of the main body,
    A pivotally coupled locking handle of the mount,
    A first locking nut and a second locking nut positioned while facing each other in the mount,
    A piston inserted into the cylinder in the body and having a screw formed on the outer side thereof,
    And a stopper coupled to the piston end and reciprocating along the cylinder in the main body to seal the cylinder,
    The mount is provided with a pair of protrusions,
    Wherein a protrusion is formed at an end of the protrusion, the protrusion is engaged with the protrusion of the main body,
    Wherein the mount has a pair of guide portions forming a rectangular space.
  2. The method according to claim 1,
    And a handle is additionally provided on the upper side of the piston.
  3. The method according to claim 1,
    Wherein the locking handle is formed with a pair of locking projections.
  4. The method of claim 3,
    A pair of projections is provided in the body,
    And an end of the protrusion is formed with a locking protrusion.
  5. delete
  6. The method according to claim 1,
    Wherein the first locking nut and the second locking nut are in a rectangular shape and are seated in the mount,
    Wherein one side of the first locking nut is formed with a semicircular portion, a recess portion is formed on the other side opposite to the semicircular portion,
    Wherein one side of the second locking nut is formed with a semicircular portion and a recessed portion is formed on the opposite side of the second locking nut.
  7. The method according to claim 1,
    Wherein the piston is coupled to the outer side by a screw formed on the stopper.
  8. The method according to claim 1,
    The first locking nut and the second locking nut are pressed against each other by the protrusion of the locking handle so that the first locking nut and the second locking nut are in contact with each other while the locking handle rotates in one direction, The piston is held by the first locking nut and the second locking nut. When the locking handle is rotated in the other direction, the contact between the first locking nut and the roller of the second locking nut with the protrusion of the locking handle The first locking nut and the second locking nut are opened by the force of the compression spring mounted on the opposed upper and lower holes of the first locking nut and the second locking nut to release the piston. Balloon expander.
KR1020140081892A 2014-07-01 2014-07-01 Balloon dilator KR101638232B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140081892A KR101638232B1 (en) 2014-07-01 2014-07-01 Balloon dilator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140081892A KR101638232B1 (en) 2014-07-01 2014-07-01 Balloon dilator

Publications (2)

Publication Number Publication Date
KR20160003460A KR20160003460A (en) 2016-01-11
KR101638232B1 true KR101638232B1 (en) 2016-07-08

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Application Number Title Priority Date Filing Date
KR1020140081892A KR101638232B1 (en) 2014-07-01 2014-07-01 Balloon dilator

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5306248A (en) * 1992-04-07 1994-04-26 C. R. Bard, Inc. Selectively controllable inflation-deflation device adapted for use in angioplasty procedures
EP2586485B1 (en) * 2011-10-31 2018-03-14 Atrion Medical Products, Inc. Actuating mechanism for fluid displacement and pressurizing device
KR101136056B1 (en) * 2009-09-04 2012-04-18 김창국 Volume variable device of Body inserted Balloon

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