WO2020256439A2

WO2020256439A2 - Percutaneous calcific deposit removal device

Info

Publication number: WO2020256439A2
Application number: PCT/KR2020/007913
Authority: WO
Inventors: 정웅교; 이진혁
Original assignee: 고려대학교 산학협력단
Priority date: 2019-06-18
Filing date: 2020-06-18
Publication date: 2020-12-24
Also published as: KR20200144323A; WO2020256439A3; KR102518523B1

Abstract

The present invention relates to a percutaneous calcific deposit removal device, the device having the advantage of being capable of crushing and suction of calcified substances simultaneously. Particularly, there is the advantage of being capable of suction to directly remove crushed calcified substances only through rotation of a motor by a mechanical structure of an inner needle comprising a spiral thread, without the need for a separate suction device.

Description

Percutaneous lime sediment removal device

The present invention relates to a percutaneous lime sediment removal apparatus, and more particularly, to a percutaneous lime sediment removal apparatus for treating calcific tendinitis.

In general, a joint refers to a biological structure in which two or more bones are movably connected, and there are about 200 different types of joints such as fibrouos joints, cartilaginous joints, and synovial joints in the human body. Is distributed over.

Calcific tendinitis refers to a condition in which lime accumulates in the shoulder muscles (tendons) among them, resulting in inflammation resulting in extreme pain (see FIG. 1).

As a result of a survey of 506 patients with calcification tendinitis in 11 domestic hospitals in 2015 by the Korean Shoulder and Elbow Society, the average age was 55 years old, but the distribution was evenly distributed from the 30s to the 80s.

Although the cause of the accumulation of lime in the shoulder muscles is not known exactly, it is not related to trauma, and it is estimated that 85% of the patients do not usually do shoulder stretching. can do.

Lime varies in size from 1 mm small lime powder to 3 cm. If the bone is continuously attached to the shoulder blades, or if the size is larger than 1.5 cm, damage to the rotator cuff or subacromial bursitis may occur. In this case, treatment is possible only through extracorporeal shock wave surgery or joint endoscopy, which are non-surgical treatments.

Lime build-up in the shoulder muscles is naturally absorbed and disappears when the shoulder muscles are used for stretching. However, since the cellular material produced in the process of melting and absorbing lime causes extreme pain, shoulder stretching is hesitant, and the lime does not disappear and accumulates.

In order to treat calcification tendinitis, surgical treatments such as calcification, which remove lime from the tendon and remove the inflamed area through arthroscopy, have been performed.

For example, to remove lime inside the tendon, a needle is inserted into the skin and broken (multiple needling), or it is continuously washed (needling and irrigation), and surgical treatment such as shock wave therapy. There are methods and so on.

However, crushing using a thick needle is not a method of removing lime directly, but is a method of crushing and facilitating absorption.It takes a long time for lime to be absorbed, and the needle is inserted into the tendon several times to damage the tendon. There are many risks. Continuous washing takes a lot of time, and there is a problem that both patients and doctors must perform in an uncomfortable posture, such as changing syringes containing physiological saline. Shockwave therapy has a problem that the therapeutic effect is not very satisfactory. In addition, the above-described surgical treatment method requires the patient to be anesthetized, and sometimes it is not possible to find the deposited lime in the surgical field.

Accordingly, there is a need for a percutaneous lime sediment removal device capable of removing a large amount of lime while minimizing damage to tendons percutaneously by improving the disadvantages of the conventional calcification tendinitis treatment.

The present invention is to solve the above-described problem, and to provide a percutaneous lime deposit removal device capable of removing a large amount of lime while minimizing damage to tendons percutaneously.

In order to achieve the above object, the percutaneous lime sediment removal apparatus according to the present invention includes a cry 110 having a tube shape extending in the longitudinal direction having a hollow portion therein, and an exposed portion at one end; In a state coupled to the hollow part of the cry 110, the inner needle 120 for crushing and simultaneously inhaling lime in the target area; And a main body 130 having a built-in rotating means for rotating and moving forward and backward of the inner needle 120, wherein the rotating means includes a motor 131 and a bevel gear, and the bevel gear rotates by driving A driving bevel gear 132 that is engaged with the driving bevel gear 132 and a first driven bevel gear 133 that rotates in engagement with the driving bevel gear 132 and a second driven bevel gear 134 that rotates in engagement with the first driven bevel gear 133 It includes, and crushes and sucks the lime of the target portion through the rotational drive of the inner needle 120 by the operation of the motor 131 and the bevel gear.

In addition, the inner needle 120 extends in the longitudinal direction, and a spiral thread 121 is formed on its outer circumferential surface.

In addition, the rotating means further includes a drive shaft 135 connected in the axial direction of the first driven bevel gear 133 and a sliding linkage 136 connecting the bent portion formed on the drive shaft 135 and the inner needle 120 Including, and through the sliding linkage 136, the rotational motion of the bevel gear is converted into a linear motion to enable the inner needle 120 to move forward and backward.

The percutaneous lime sediment removal device according to the present invention has the advantage of crushing lime and enabling suction at the same time.

In particular, there is an advantage in that suction for direct removal of crushed lime is possible only by rotation of the motor due to the mechanical structure of a spiral thread without the need for a separate suction device.

1 is a view showing the location of calcified tendinitis.

2 is a perspective view of an apparatus for removing percutaneous lime deposits according to an embodiment of the present invention.

3 is a view showing in detail the inner needle of the percutaneous lime sediment removal device according to an embodiment of the present invention.

4 is a schematic diagram of an apparatus for removing percutaneous lime deposits according to an embodiment of the present invention.

5 is a view showing in detail the inside of the main body of the percutaneous lime deposit removal apparatus according to an embodiment of the present invention.

Prior to the description, the term "percutaneous lime deposit removal device" among the terms used in the present invention is a medical device for treating calcific tendinitis, and removes a large amount of lime while minimizing damage to tendons percutaneously. It is a medical device that can. In the present invention, the percutaneous lime sediment removal device is a device for treating calcification tendinitis, and is a medical device capable of crushing lime and simultaneously discharging the crushed lime to the outside.

Among the terms used in the present invention, "one side" refers to a side adjacent to the target site in a state of use, and refers to a side adjacent to the target site in the lime sediment removal device. "Once" means a part of the lime sediment removal device, ie, one end, and means one end of the lime sediment removal device adjacent to the target site.

In addition, "the other side" means the side opposite to the target site in the state of use, and refers to the side opposite to the target site in the lime sediment removal device. "The other end" means one end opposite to the one end opposite to the target site.

In addition, the term "target site" refers to a biological site in which lime is deposited and to be removed, and may mean an affected area on which lime is deposited.

The percutaneous lime sediment removal device according to the present invention includes a call 110 having a tube shape extending in the longitudinal direction having a hollow portion therein and an exposed portion at one end; In a state coupled to the hollow part of the cry 110, the inner needle 120 for crushing and simultaneously inhaling lime in the target area; And a main body 130 having a built-in rotating means for rotating and moving forward and backward of the inner needle 120, wherein the rotating means includes a motor 131 and a bevel gear, and the bevel gear rotates by driving A driving bevel gear 132 that is engaged with the driving bevel gear 132 and a first driven bevel gear 133 that rotates in engagement with the driving bevel gear 132 and a second driven bevel gear 134 that rotates in engagement with the first driven bevel gear 133 It includes, and crushes and sucks the lime of the target portion through the rotational drive of the inner needle 120 by the operation of the motor 131 and the bevel gear.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

Figure 2 is a perspective view of a percutaneous lime sediment removal device according to an embodiment of the present invention, Figure 3 is a view showing in detail the inner needle of the percutaneous lime sediment removal device according to an embodiment of the present invention, Figure 4 is the present invention A schematic diagram of a percutaneous lime deposit removal device according to an embodiment of the present invention, and FIG. 5 is a view showing in detail the interior of a main body of the percutaneous lime deposit removal device according to an embodiment of the present invention.

Hereinafter, an apparatus for removing lime deposits according to an embodiment of the present invention will be described in detail with reference to FIGS. 2 to 5.

The percutaneous lime deposit removal apparatus 100 according to the present invention comprises a cry 110, an inner needle 120 and a body 130.

외침(110)Cry (110)

The cry 110 is for guiding the inner needle 120 to be described later to the target site, and the inner needle 120 can move to the target site through the call 110, and the crushed lime is also used through the cry 110. It can be excreted outside the body. The call 110 may be in the form of a tube extending in the longitudinal direction having a hollow portion therein and an exposed portion at one end.

In particular, the call 110 may be made so that one end has an inclination in order to easily access the target area. Specifically, the exposed portion may be variously implemented, such as a form in which the front end has an inclination toward one side, a form in which both sides have an inclination, or a form in which inclined surfaces are formed in three and four directions.

On the other hand, such a cry 110 is preferably formed of a metal material harmless to the human body, for example, stainless steel (Stainless steel), aluminum (Aluminum), titanium (Titanium), Nitinol (Nitinol) and plastic (Plastics). It may be made of one material selected from the group consisting of.

내침(120)Intrusion (120)

The inner needle 120 can be coupled to the hollow portion of the cry 110, and serves to crush and simultaneously inhale the lime of the target portion. The inner needle 120 is connected to the main body 130 and installed, and more specifically, connected to the motor 131 of the main body 130, the rotation and rotation of the inner needle 120 by the operation of the motor 131 Can be driven to reverse.

The inner needle 120 extends in the longitudinal direction, and a spiral thread 121 may be formed on an outer peripheral surface. Specifically, by the operation of the connected motor 131, it is possible to treat lime tendinitis by rotating about an axis to crush the lime on the target area and suck the crushed lime. Meanwhile, the inner needle 120 does not include a separate suction device, but the mechanical structure of the spiral thread 121 formed on the outer circumferential surface allows suction for direct removal of crushed lime only by rotating the motor 131. I can. A detailed operation of the motor 131 will be described later.

In addition, the inner needle 120 may be formed in a linear round shape so as not to damage the surrounding tissues of the target site.

Here, the inner needle 120 may be formed in various shapes, but any shape is not limited as long as it is a shape for easily crushing lime in the target area.

Further, the material of the inner needle 120 may be made of at least one material selected from the group of stainless steel, aluminum, titanium, nitinol, and plastics.

본체(130)Body (130)

The main body 130 is provided to be held by a practitioner by hand, and a rotating means for rotation and forward/backward rotation of the inner needle 120 is incorporated therein.

The rotating means according to the present invention is configured to include a motor 131 and a bevel gear. The motor includes a driving bevel gear 132 rotated by driving and a first driven bevel gear 133 rotated in engagement with the driving bevel gear 132, and rotated in engagement with the first driven bevel gear 133 It includes a second driven bevel gear (134).

Here, the bevel gear means a conical gear that moves when a motion is transmitted between two intersecting axes.

In the present invention, the bevel gear is a state in which two axes of the driving bevel gear 132 and the first driven bevel gear 133, the first driven bevel gear 133 and the second driven bevel gear 134 are staggered (each center axis It can be installed so that power transmission occurs in the state of being crossed.

First, when the voltage of the motor 131 is applied, the driving bevel beer is rotated by the rotation of the motor 131. In addition, a first driven bevel gear 133 meshed with the driving bevel gear 132 rotates, and a second driven bevel gear 134 meshed with the first driven bevel gear 133 rotates. At this time, the inner needle 120 connected to the axis of the second driven bevel gear 134 rotates about the axis. Accordingly, the inner needle 120 including the spiral thread 121 rotates, so that the lime can be easily crushed.

As a specific aspect, the shaft and the inner needle 120 of the second driven bevel gear 134 may be connected by a spline shaft/boss.

Meanwhile, the driving shaft 135 may be connected to the first driven bevel gear 133 in the axial direction. That is, the drive shaft 135 may be connected to the axis of the inner needle 120 in a direction of about 90°. The drive shaft 135 may be extended in the longitudinal direction, and a predetermined portion may be formed in a notch shape, for example, a bent portion in the shape of a'c' shape. In this case, a sliding linkage 136 connected to the inner needle 120 may be connected to the bent portion. By the sliding linkage 136 connected to the bevel gear drive shaft 135 and the inner needle 120, the rotational motion of the bevel gear is converted into a linear motion, so that the inner needle 120 can be moved forward/reversely.

Further, the main body 130 according to an embodiment of the present invention may include at least one chamber 140, which may be included at one end of the main body 130. The chamber 140 may be a space in which crushed lime is sucked and discharged.

작동기작Operating mechanism

Hereinafter, an operating mechanism of the percutaneous lime sediment removal apparatus according to an embodiment of the present invention will be described.

First, a trocar is inserted into the target site (lime) in the shoulder tendon. Then, put the trocar and remove the trocar. Here, the trocar may mean the cry 110 according to an embodiment of the present invention. Then, after inserting the inner needle 120 of the percutaneous lime sediment removal device into the inside of the cry 110, the power of the main body 130 is turned on.

In this case, a voltage is applied to the motor 131 to drive the motor 131. Accordingly, the driving bevel gear 132 connected to the motor 131 rotates. In addition, the first driven bevel gear 133 meshed with the driving bevel gear 132 rotates, and the second driven bevel gear 134 meshed with the first driven bevel gear 133 rotates. At this time, the inner needle 120 connected in the axial direction of the second driven bevel gear 134 is rotated. That is, the inner needle 120 including the spiral thread 121 rotates to crush the lime.

Further, the first driven bevel gear 133 is connected to the inner needle 120 by a sliding linkage 136, and the sliding linkage 136 has a'C' shape that is not a straight line with the first driven bevel gear 133 It may be connected to the drive shaft 135 bent in shape. By the bevel gear drive shaft 135 and the sliding linkage 136 connected to the inner needle 120, the rotational motion of the bevel gear is converted into a linear motion, so that the inner needle 120 can be moved forward/reversely.

The inner needle 120 of the percutaneous lime sediment removal apparatus according to an embodiment of the present invention can easily and repeatedly remove lime from a target area by rotating and moving in the front/rear direction with a single drive. The lime removed in this way is discharged and stored in the lime chamber 140.

That is, the percutaneous lime deposit removal apparatus 100 according to an embodiment of the present invention can directly remove crushed lime by rotating the motor 131 by the mechanical structure of the spiral thread 121 without the need for a separate suction device. For suction, it is possible to facilitate the crushing of lime through the control of the motor 131 in the front/rear direction.

Further, the percutaneous lime deposit removal apparatus 100 according to an embodiment of the present invention has less damage to the surrounding normal tendons and can safely and conveniently remove lime, thereby ensuring the convenience of the operator and the safety of the patient.

The percutaneous lime deposit removal device according to the present invention can easily remove lime from shoulders, elbows, wrists, and buttocks in orthopedic surgery, and can be applied to various fields such as nucleus removal in neurosurgery.

Claims

A call 110 having a tube shape extending in the longitudinal direction having a hollow portion inside and an exposed portion at one end;

In a state coupled to the hollow part of the cry 110, the inner needle 120 for crushing and simultaneously inhaling lime in the target area; And

Including; a main body 130 having a built-in rotation means for the rotation and forward and backward of the inner needle 120,

The rotating means includes a motor 131 and a bevel gear,

The bevel gear includes a driving bevel gear 132 rotated by driving, a first driven bevel gear 133 rotated in engagement with the driving bevel gear 132, and a first driven bevel gear 133 rotated in engagement with the first driven bevel gear 133. It includes two driven bevel gears 134,

Characterized in that by crushing and sucking the lime of the target portion through the rotational drive of the inner needle 120 by the operation of the motor 131 and the bevel gear,

Percutaneous lime sediment removal device.
The method of claim 1,

The inner needle 120 extends in the longitudinal direction, and a spiral thread 121 is formed on the outer circumferential surface thereof, a percutaneous lime sediment removal device.
The method of claim 1,

The rotating means,

A drive shaft 135 connected in the axial direction of the first driven bevel gear 133 and

Further comprising a sliding linkage 136 connecting the bent portion formed on the drive shaft 135 and the inner needle 120,

Through the sliding linkage (136), the rotational motion of the bevel gear is converted into a linear motion to enable the forward and backward motion of the inner needle (120).