KR101043233B1 - Syringe - Google Patents

Abstract

PURPOSE: A syringe is provided to restrain the arrangement of a plunger about a barrel through the self-structure of the syringe without a separate fixing device. CONSTITUTION: A syringe comprises: a barrel(110) in which a nozzle is formed in one end thereof; a plunger(120) which is received into the barrel in order to move in a straight line within the barrel; and a plunger manipulation unit(130) which is arranged in the other end part of the barrel, reciprocates with the plunger, and selectively restrains the arrangement of a plunger about a barrel. The plunger is linked with the reciprocating motion manipulation of plunger manipulation unit and is placed in a specific location within the barrel during centrifuge.

Description

Syringe {SYRINGE}

The present invention relates to a syringe, and more particularly, to a convenience in use, and to a syringe that can be used directly in a centrifugal separator.

In general, a syringe is used to inject an object, such as a drug solution into the tissue of the organism, or is used to move and process the object in various experiments and research, in addition to the syringe is widely used for various purposes such as industrial use.

In general, the syringe includes a barrel having a nozzle formed at one end thereof, and a plunger accommodated to be linearly movable inside the barrel at the other end of the barrel, and the object is introduced or discharged through the nozzle according to the pressure change caused by the linear movement of the plunger. Can be.

However, the conventional syringe is difficult and inconvenient that the user has to operate using both hands inevitably because one-hand operation is difficult due to the structural characteristics. That is, since the conventional syringe has to pull or push the end of the plunger at the other end of the barrel, the user inevitably has a troublesome and inconvenient problem of holding the barrel with one hand and manipulating the plunger with the other hand.

In addition, the conventional syringe is unable to fix the arrangement of the plunger, there is a problem that the plunger is moved by unintentional contact and impact. Therefore, conventional syringes have problems that are not suitable for procedures and experiments requiring a high degree of stability and accuracy.

Moreover, the conventional syringe cannot fix the arrangement of the plunger with respect to the barrel, which makes it difficult to apply it directly to the centrifuge. That is, when centrifugation is performed using a conventional syringe, there is a problem that the plunger is inadvertently moved relative to the barrel by the centrifugal force. Therefore, conventionally, in order to perform centrifugation using a syringe, there is a cumbersome and inconvenient problem that a separate restraining means for restraining the movement of the plunger separately from the syringe has to be installed. There is a problem losing.

Accordingly, in recent years, various studies have been made on a syringe which can be used directly in a centrifuge and can improve stability and reliability.

The present invention provides a syringe that can be used directly in the centrifuge.

In particular, the present invention provides a syringe capable of preventing inadvertent movement of the plunger relative to the barrel during centrifugation using the syringe.

In addition, the present invention does not require a separate fixing means for fixing the arrangement of the plunger relative to the barrel separately from the syringe, so that the syringe can be used in the centrifugal apparatus, simply by the syringe itself structure, the plunger against the barrel It provides a syringe that can restrain the arrangement of the.

In addition, the present invention provides a syringe which can provide convenience in use and can improve stability.

In addition, the present invention provides a syringe capable of stably operating the plunger using one hand.

In addition, the present invention provides a syringe capable of temporarily constraining the placement of the plunger and preventing movement of the plunger due to unintended contact and impact.

According to a preferred embodiment of the present invention for achieving the above object of the present invention, there is provided a barrel having a nozzle formed at one end, a plunger accommodated in a linear movement within the barrel, and provided at the other end of the barrel and functionally provided with the plunger. It includes a plunger operation portion to be connected, the plunger is selectively linearly moved by the operation of the plunger operation portion.

For reference, the syringe according to the present invention may be used for injecting an object such as a medicine into a tissue of an organism, or may be used for moving and processing an object in various experiments and studies, as well as for centrifuging an object such as blood. Can be used for In addition, the syringe according to the present invention may be used for other purposes, and the present invention is not limited or limited by the use of the syringe. In addition, the object in the present invention means a material to be processed through a syringe, the present invention is not limited or limited by the type and characteristics of the object.

The plunger operation part may be functionally connected to the plunger in various ways according to the required conditions, and the structure and method of the plunger operation part may be variously changed. Here, the plunger and the plunger operation unit is functionally connected, means that the plunger and the plunger operation unit is directly or indirectly connected, the plunger can be interlocked by the operation of the plunger operation unit. Thus, the user can simply move the plunger by manipulating the plunger operating portion provided at the barrel other end without directly operating the plunger.

For example, the plunger operation part may include a housing provided at the other end of the barrel, an operation handle provided to be linearly movable on the housing, and a connection part connecting the plunger and the operation handle, and the plunger may be used for linear operation of the operation handle. Can move straight.

For reference, the housing may be integrally formed at the other end of the barrel, but in some cases, the housing may be separately assembled at the other end of the barrel. Likewise, the connecting portion may be integrally formed with the plunger, but in some cases, the connecting portion may be separately assembled to the plunger.

The shape and structure of the housing can be variously changed according to the required conditions and design specifications. For example, the housing may be formed to be cut (D-CUT) to have a thickness relatively thinner than the barrel, and in some cases, the housing may be formed to have an ergonomic structure almost similar to the shape of the user's palm grip. It may be provided in various other shapes and structures.

Since the manipulation handle is provided to be linearly movable on the housing, the linear movement of the manipulation handle may be implemented in various ways according to the required conditions and design specifications. For example, a guide slot may be formed in the housing, and an operation handle connected to the plunger through the connection portion may be exposed to the outside of the housing through the guide slot. In addition, the guide slot may be formed in a straight section along the longitudinal direction of the housing, or alternatively, the guide slot may be formed to be inclined with respect to the longitudinal direction of the housing or form a spiral form. In some cases, it is also possible to exclude the separate guide slot and to be configured to be disposed on the outside of the housing while the operation handle is connected to the connecting portion.

On the other hand, the operation handle may be provided to be selectively restrained at a specific position according to the arrangement position of the plunger with respect to the barrel, the restraint of the operation handle may be implemented in various ways depending on the required conditions and design specifications. For example, a plurality of restraint grooves may be formed on the inner wall surface of the guide slot of the housing to be spaced apart, and the operation handle may be provided to be moved to a restraint position which is selectively restrained by the restraint groove and a release position where the restrained state is released. have. In addition, the plunger operation portion may include an elastic portion for elastically connecting the connection portion and the operation handle, the operation handle is elastically supported on the elastic portion and can move linearly between the restrained position and the release position.

The syringe according to the present invention can be used to extract the desired component from the object to be treated by centrifugation. The target component is the first centrifugal separation of the object to be treated inside the barrel, and discharges a specific component disposed on the nozzle side by the first centrifugation through the nozzle, and then reverses the nozzle direction to remove the object to be treated inside the barrel. By centrifuging and discharging through the nozzle other specific components disposed on the nozzle side by the second centrifugation, they can remain inside the barrel.

In the first and second centrifugation, the barrels can be arranged along various directions depending on the conditions required and the processing environment. As an example, in the first centrifugation step the barrel may be arranged such that the nozzles face outward of the center of rotation of the barrel, and in the second centrifugation step the barrel may be arranged so that the nozzles face inward of the center of rotation of the barrel. have. In some cases, it is also possible to arrange the nozzles to face the inside of the barrel's rotation center in the first centrifugation step, and to arrange the nozzles to face the outside of the barrel's rotation center in the second centrifugation step.

If the object to be treated is blood, during the first centrifugation, one of the heaviest components of blood may be disposed on the nozzle side that is the outermost inside of the barrel relative to the center of rotation of the barrel. This particular component may comprise the heaviest red blood cells among the components of the blood.

In addition, during the second centrifugation, an interlayer separation is performed between the components by the difference in the density of the remaining components (for example, plasma and platelets) constituting the blood. The specific component may be disposed on the nozzle side that is the innermost side of the barrel with respect to the center of rotation of the barrel, and such other specific component may include a relatively light plasma among the remaining components of the blood.

On the other hand, since the movement of the operation handle can be constrained during the first centrifugal separation and the second centrifugal separation, the movement of the plunger with respect to the barrel can be constrained during the centrifugation.

In addition, according to another preferred embodiment of the present invention, the operation handle may be provided to be screwed in a screw fastening manner, the operation handle may be selectively restrained at a specific position by the tightening force by the tightening operation. For example, the operation handle is fastened to the connection portion by a screw tightening method, the end portion may be configured to be pressed to the inner surface of the housing by the tightening operation, the movement of the operation handle by the pressing force as the operation handle is pressed on the inner surface of the housing May be constrained. In some cases, the connection portion or the manipulation handle may be directly (or indirectly) pressed against the housing by the pressing force of the manipulation handle so that the movement of the manipulation handle is constrained. Alternatively, a separate tightening member may be provided for restraining the manipulation handle separately from the manipulation handle.

In addition, according to another preferred embodiment of the present invention, the housing may be formed with a ratchet portion having a plurality of engaging jaw in the form of a tooth, the plunger operation portion is rotatable relative to one end to the operation handle or connecting portion It may comprise a ratchet pawl to be joined. Accordingly, the ratchet pole may be disposed at a restraint position and a restrained position at which the ratchet pole is selectively restrained and the restrained state is released. When the ratchet pole is disposed at the restraint position, the movement of the manipulation handle is restrained. Can be.

In addition, according to another preferred embodiment of the present invention, the plunger operation unit may include a housing provided at the other end of the barrel, an operation handle provided to be rotatable on the housing, and a connection portion connecting the plunger and the operation handle. The plunger can be linearly moved by the rotation operation of the operation handle. The operation handle may be provided to be rotatable in various ways depending on the required conditions and design specifications. For example, the housing may be provided with a guide screw, the operation handle is mounted to the guide screw, it can be moved linearly along the guide screw by the rotation operation. The guide screw can be arranged coaxially or non-coaxially with the plunger, depending on the required conditions and design specifications. In some cases, the guide screw may be configured to linearly move and move the plunger by a rotation operation of the operation handle. Alternatively, the guide handle may be provided to be rotatable in other ways without a separate guide screw. .

In addition, according to another preferred embodiment of the present invention, the plunger operation unit, the housing provided on the other end of the barrel, the operation handle rotatably mounted on one side of the housing, the conversion unit for converting the rotational movement of the operation handle into linear motion And a connection part connected to the plunger and linearly moved by the converter, and the plunger can be linearly moved by the rotation operation of the operation handle.

The conversion unit may be provided in various structures and manners capable of converting the rotational movement of the manipulation handle into a linear movement. For example, the conversion unit may be composed of at least one gear combination, the rotational force by the operation handle can be converted into a linear motion by the pinion gear and the rack gear after being transmitted through the bevel gear.

In addition, the manipulation handle may be arranged on the same line as the plunger or on the same line as the plunger, and the rotation axis of the manipulation handle may be arranged parallel to or perpendicular to the plunger as well as at other angles.

According to the syringe according to the present invention, since the arrangement of the plunger with respect to the barrel can be restrained, it can be used directly in the centrifugal separator.

In particular, according to the present invention, when performing centrifugation using a syringe, it is possible to prevent unintentional movement of the plunger relative to the barrel. Thus, in order to use the syringe in a centrifugal device, the arrangement of the plunger relative to the barrel is simply made by the syringe itself, without the need for a separate fixing means for fixing the arrangement of the plunger relative to the barrel. Can be bound. Therefore, separate restraining means for restraining the arrangement of the plunger with respect to the barrel can be excluded, thereby simplifying the structure and reducing the time required for the centrifugation process.

In addition, the syringe according to the present invention can be used for the purpose of centrifugal separation, and of course, it can be used to move and treat the object more conveniently in various experiments and studies. That is, according to the present invention, by allowing the plunger to be linearly moved by the operation of the plunger operation unit provided at the other end of the barrel, the user can stably operate the plunger using one hand without using two hands. For example, the user can linearly move the plunger by manipulating the operation handle using a thumb while stably holding the housing.

Further, according to the present invention, since the arrangement state of the plunger can be temporarily constrained, it is possible to prevent the plunger from moving unintentionally due to contact or impact. Therefore, it can be used as a syringe for procedures and experiments requiring a high degree of stability and accuracy.

1 is a perspective view showing the structure of a syringe according to the present invention.
2 to 8 are diagrams for explaining the centrifugation process using a syringe according to the present invention.
9 to 13 are views each showing a syringe according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments. In describing the present invention, a detailed description of well-known functions or constructions may be omitted for clarity of the present invention.

1 is a perspective view showing the structure of a syringe according to the present invention.

As shown in FIG. 1, the syringe according to the present invention includes a barrel 110, a plunger 120, and a plunger manipulation unit 130.

For reference, the syringe according to the present invention may be used for injecting an object such as a medicine into a tissue of an organism, or may be used for moving and processing an object in various experiments and studies, as well as for centrifuging an object such as blood. Can be used for In addition, the syringe according to the present invention may be used for other purposes, and the present invention is not limited or limited by the use of the syringe. In addition, the object in the present invention means a material to be processed through a syringe, the present invention is not limited or limited by the type and characteristics of the object.

The barrel 110 may be provided in a hollow cylindrical shape having a predetermined diameter (or capacity). One end of the barrel 110 is formed with a nozzle 112 for entering and exiting the object. In addition, the nozzle 112 may be equipped with a variety of additional devices such as a separate needle (needle) or a cap (cap).

In addition, a finger flange 114 having an extended diameter (or size) may be formed at the other end of the barrel 110. In some cases, a separate insertion hole (not shown) may be formed in the finger flange for inserting a finger, and the shape and structure of the finger flange may be appropriately changed according to the required conditions and design specifications.

The plunger 120 enters the other end of the barrel 110 and is accommodated in the barrel 110 so as to be linearly movable, and the object through the nozzle 112 according to the pressure change due to the linear movement of the plunger 120. Can be entered or discharged.

The plunger manipulator 130 may be provided at the other end of the barrel 110 to be functionally connected to the plunger 120, and the plunger 120 may be selectively linearly moved by the manipulation of the plunger manipulator 130. The plunger manipulation unit 130 may be functionally connected to the plunger 120 in various ways according to the required conditions, and the structure and manner of the plunger manipulation unit 130 may be variously changed.

Here, the plunger 120 and the plunger operation unit 130 is functionally connected, the plunger 120 and the plunger operation unit 130 is directly or indirectly connected, by the operation of the plunger operation unit 130 plunger ( 120 may be linked. Therefore, the user can easily move the plunger 120 by manipulating the plunger manipulation unit 130 provided at the other end of the barrel 110 without directly manipulating the plunger 120.

Hereinafter, an example in which the plunger operation unit 130 is provided to be linearly operated on the housing 140 described above will be described. For example, the plunger manipulator 130 may include a housing 140 provided at the other end of the barrel, an operation handle 150 provided to be linearly movable on the housing 140, and a plunger 120 and an operation handle 150. It may include a connecting portion 160 for connecting the plunger 120 may be configured to move in a straight line by a straight line operation of the operation handle 150.

For reference, the housing 140 may be integrally formed at the other end of the barrel 110, but in some cases, the housing may be separately assembled or coupled and attached to the other end of the barrel. Likewise, the connection part 160 may be integrally formed with the plunger 120, but in some cases, the connection part may be separately assembled or coupled and attached to the plunger. Hereinafter, an example in which the housing 140 is integrally formed with the barrel 110 to form part of the other end of the barrel 110 and the connection part 160 is integrally formed with the plunger 120 to form part of the plunger 120 It will be described with an example.

The shape and structure of the housing 140 may be variously changed according to the required conditions and design specifications. For example, the housing 140 may be formed to be cut to have a thickness relatively thinner than that of the barrel so that the user may grip the housing 140 more easily. In some cases, the housing may be formed by the user. It may be formed to have an ergonomic structure almost similar to the palm gripping shape of, and may be provided in various other shapes and structures.

As described above, the manipulation handle 150 is provided to be linearly movable on the housing 140, so that the linear movement of the manipulation handle 150 may be implemented in various ways according to required conditions and design specifications. . As an example, the guide slot 140a may be formed in the housing 140, and the operation handle 150 connected to the plunger 120 through the connection unit 160 may be disposed in the housing 140 through the guide slot 140a. May be exposed to the outside. Therefore, the user can directly operate the operation handle 150 using a finger (for example, a thumb) while holding the outer surface of the housing 140, and the plunger can be operated by the linear operation of the operation handle 150. 120 is interlocked and can move linearly.

In the embodiment of the present invention, the guide slot is described as an example in the form of a straight section along the longitudinal direction of the housing, in some cases, the guide slot may be formed to be inclined with respect to the longitudinal direction of the housing or to form a kind of spiral shape. have. Alternatively, it is also possible to exclude the separate guide slot and to be configured to be disposed on the outside of the housing while the operation handle is connected to the connection.

The manipulation handle may be formed integrally with the connection portion through injection molding, but in some cases, the manipulation handle may be separately assembled, attached, or coupled to the connection portion. As such, the operation handle 150 may be mechanically connected to the plunger in various ways, and the present invention is not limited or limited by the connection structure between the plunger 120 and the operation handle 150.

On the other hand, the operation handle 150 is provided to be selectively restrained at a specific position according to the arrangement position of the plunger 120 with respect to the barrel (110). That is, the user may move the plunger 120 by manipulating the manipulation handle 150. After the plunger 120 moves to a specific position of the barrel 110, the manipulation handle 150 is restrained, thereby causing the barrel ( Movement of the plunger 120 relative to 110 may be constrained.

The restraint of the manipulation handle 150 may be implemented in various ways according to the required conditions and design specifications. For example, a plurality of restraint grooves 170 may be formed on the inner wall surface of the guide slot 140a of the housing 140 at predetermined intervals, and the manipulation handle 150 may be selectively restrained groove 170. It can be provided so as to be movable to the restrained position to be constrained and the restrained position is released. In the state where the manipulation handle 150 is disposed at the restraint position, the movement of the manipulation handle 150 may be restrained, and in the state where the manipulation handle 150 is disposed at the release position, without interference by the restraint groove 170. The manipulation handle 150 may move linearly.

In addition, the manipulation handle 150 may move to the above-described restraint position and dismantled position in various ways according to the required conditions and design specifications. For example, the plunger manipulation unit 130 may include an elastic portion 152 that elastically connects the connection portion 160 and the manipulation handle 150, and the manipulation handle 150 is burnt by the elastic portion 152. It is sexually supported and can move linearly between restraint and release positions.

The spacing interval and the number of the restraint grooves 170 may be appropriately changed according to the required conditions and design specifications, and the plurality of restraint grooves 170 may be formed to be spaced at uniform or non-uniform intervals.

In the embodiment of the present invention has been described with an example in which the restraint groove is formed in both the inner wall surface and the other inner wall surface of the guide slot, in some cases, the restraint groove is to be formed only on any one side of the inner wall surface of the guide slot. Can be.

Hereinafter, a centrifugal separation process using a syringe according to the present invention will be described.

2 to 4 are views for explaining a first centrifugal separation process and a discharge process using a syringe according to the present invention, Figures 5 to 7 are a second centrifugal separation process and a discharge process using a syringe according to the present invention 8 is a view for explaining the use of the target component extracted after the second centrifugal separation using a syringe according to the present invention. In addition, the same or equivalent portions as those in the above-described configuration are denoted by the same or equivalent reference numerals, and a detailed description thereof will be omitted.

First, blood is stored in the barrel 110. Blood may enter the barrel 110 through the nozzle 112 according to the pressure change caused by the linear movement of the plunger 120. In this case, the blood may be equipped with a separate needle (see 132 of FIG. 8) at the tip of the nozzle 112 and may be directly supplied from the body using the needle. In some cases, it is also possible to enter the blood stored in a separate reservoir into the barrel through the nozzle.

Next, as shown in Figure 2, by using a conventional centrifuge (not shown) by rotating the syringe, the blood stored in the barrel 110 is centrifuged first. At this time, the barrel 110 is disposed so that the nozzle 112 faces in the opposite direction (outside) of the rotation center of the syringe. In addition, the rotation center of the syringe may be understood as a rotation axis (not shown) of a rotating means such as a rotor or a rotating bucket in which the syringe is mounted.

In addition, the syringe may be connected to a rotating means such as a rotor via a conventional adapter or a rotating bucket, and in some cases, the syringe may be configured to be directly connected to the rotating means.

As described above, when the syringe is rotated in a state in which the nozzle 112 of the barrel 110 is disposed to face the direction opposite to the rotational center of the syringe, as shown in FIG. Separation of the liver is performed, wherein one specific component (A), which is the heaviest among the components of blood, is disposed at the nozzle 112 that is the outermost in the barrel 110 with respect to the center of rotation. For reference, the one specific component (A) may include the heaviest red blood cells among the components of the blood.

Next, the specific component (A) separated from the blood by the first centrifugal separation and disposed on the nozzle 112 side is discharged through the nozzle 112. That is, as shown in FIG. 4, the plunger 120 may be pushed out to discharge one specific component A (red blood cells) disposed on the nozzle 112 side to the outside of the barrel 110 through the nozzle 112.

Next, as shown in Figure 5, by rotating the syringe through the centrifuge to separate the second centrifugal blood separated from one specific component. At this time, the barrel 110 is disposed in the opposite direction as the first centrifugal separation. That is, the barrel 110 is rotated with the nozzle 112 disposed to face the rotation center of the syringe.

When the barrel 110 is rotated in a state in which the nozzle 112 of the barrel 110 is disposed toward the rotation center of the syringe as described above, as shown in FIG. 6, remaining components constituting the blood (for example, plasma and platelets) Delamination between the components is achieved by the difference in density of the components, wherein a relatively light specific component (B) among the remaining components of the blood is the nozzle (innermost inside the barrel 110 relative to the center of rotation of the syringe ( 112) on the side. For reference, the other specific component (B) may include a relatively light plasma of the remaining components of the blood.

In addition, the first centrifugal separation rate and the second centrifugal separation rate of the blood are set differently. For example, the first centrifugal separation may be performed under a condition of 2500 to 3500 rpm, and the second centrifugal separation may be performed under a condition of 4000 to 5500 rpm.

Next, the other specific component B which is separated from the blood by the second centrifugal separation and disposed on the nozzle 112 side is discharged through the nozzle 112. As in the specific component described above, as shown in FIG. 7, the specific component B (plasma) disposed on the nozzle 112 side by pushing the plunger 120 out of the barrel 110 through the nozzle 112. Can be discharged.

Therefore, after one specific component (A) and the other specific component (B) are separated and discharged from the blood through the first centrifugal separation and the second centrifugal separation, the target component (C) remaining inside the barrel 110 is platelets. (blood platelet).

As described above, only platelets may be extracted into the barrel 110 through the first centrifugation and the second centrifugation of blood, and various experiments and studies are performed using the extracted platelets, or as shown in FIG. 8, The injection using a platelet may be performed by directly injecting the patient through the needle 132 mounted on the nozzle 112.

On the other hand, during the first centrifugal separation and the second centrifugal separation, since the operation handle 150 can be accommodated in the restraint groove 170 and constrained, the plunger for the barrel 110 during the centrifugation is in progress. Movement of 120 may be constrained.

In addition, the user manipulates the operation handle 150 using a finger (for example, a thumb) while holding the outer surface of the housing 140 to move the plunger 120, thereby centrifuging the nozzle 112. The specific component or the target component disposed on the) side may be discharged to the outside of the barrel 110 through the nozzle 112.

On the other hand, Figures 9 to 13 is a view showing a syringe according to another embodiment of the present invention, respectively. In addition, the same or equivalent portions as those in the above-described configuration are denoted by the same or equivalent reference numerals, and a detailed description thereof will be omitted.

Although the above-described and illustrated embodiments of the present invention have been described with an example in which the manipulation handle is accommodated in the restriction groove and configured to be restrained, the manipulation handle may be configured to be restrained by a screw tightening method.

That is, referring to Figure 9, the operation handle 151 is connected to the connection portion 161 connected to the plunger 120 is provided to be linearly movable on the housing 141, the operation handle 151 is a screw fastening method It may be provided so that the screw can be tightened to be selectively constrained at a specific position by the tightening force by the tightening operation.

The tightening structure of the manipulation handle 151 can be changed according to the required conditions and design specifications. For example, the operation handle 151 is fastened to the connection portion 161 by a screw tightening method, the end portion may be configured to be pressed to the inner surface of the housing 141 by the tightening operation, the end of the operation handle 151 The movement of the manipulation handle 151 may be restrained by the pressing force as it is pressed against the inner surface of the housing 141. In some cases, the connection portion or the manipulation handle may be directly (or indirectly) pressed against the housing by the pressing force of the manipulation handle so that the movement of the manipulation handle is constrained.

Although the above-described and illustrated embodiments of the present invention have been described with an example in which the manipulation handle itself performs the role of the tightening member, in some cases, a separate tightening member for restraining the manipulation handle is provided separately from the manipulation handle. May be

In addition, in the above-described and illustrated embodiments of the present invention, an example in which the plunger is linearly moved by the linear operation of the plunger operating portion has been described. However, in some cases, the plunger may be configured to linearly move by the rotation operation of the plunger operating portion. It may be.

Referring to FIG. 10, the syringe according to another embodiment of the present invention includes a barrel 110, a plunger 120, and a plunger manipulation part 132, wherein the plunger manipulation part 132 is the other end of the barrel 110. It may include a housing 142 provided in the, the operation handle 152 is provided to be rotatable on the housing 142, and the connection portion 162 for connecting the plunger 120 and the operation handle 152, The plunger 120 may linearly move by the rotation manipulation of the manipulation handle 152.

The manipulation handle 152 may be provided to be rotatable on the housing 142 in various ways according to the required conditions and design specifications. For example, the housing 142 may be provided with a guide screw 152a to be disposed coaxially with the plunger 120, the operation handle 152 is mounted to the guide screw 152a to guide by the rotation operation It can move linearly along the screw 152a.

As the guide screw 152a, a conventional screw in which a predetermined thread is formed along an outer circumferential surface may be used, and the operation handle 152 is rotatably mounted along the thread of the guide screw 152a, and guided by a rotation operation. It can move linearly along the screw 152a.

With this structure, the operation handle 152 can be linearly moved along the guide screw 152a by the rotation operation, and thus the plunger 120 connected to the operation handle 152 via the connection portion 162 is connected. You can move straight together.

In addition, since the operation handle 152 can be linearly moved along the guide screw 152a only by the rotation operation, it is possible to prevent the unintentional movement of the operation handle 152 by centrifugal force during the centrifugation without a separate fixing means. Can be.

In the above-described embodiment of the present invention, the guide screw is described as an example of being disposed coaxially with respect to the plunger. However, in some cases, the guide screw may be configured to be disposed coaxially with respect to the plunger.

In the embodiment of the present invention has been described with an example in which the operation handle is linearly moved by the rotation operation of the operation handle, in some cases, the guide screw is linearly moved by the rotation operation of the operation handle to move the plunger Alternatively, the steering wheel may be provided to be rotatable in other ways, except for a separate guide screw.

In addition, although the above-described and illustrated embodiments of the present invention have been described with an example in which the operation handle is selectively restrained by restraint between the operation handle and the restraint groove, in some cases, the operation handle is operated by interference between the ratchet part and the ratchet pole. It can also be configured to constrain the movement of the handle.

That is, as shown in Figure 11, the housing 143 may be formed with a ratchet portion (170a) having a plurality of engaging jaw in the form of a tooth inclined to one side, the plunger operation portion 133 is the operation handle 153 Or a ratchet pawl 170 rotatably coupled to one end of the connecting portion 163. Accordingly, the ratchet pole 170 may be disposed at a restraint position and a restrained position where the restrained state is released from the restraint position, which is selectively restrained by the ratchet part 170a. In the arranged state, movement of the manipulation handle 153 may be restrained.

In addition, the arrangement angle of the ratchet pole 170 and the latching jaw angle of the ratchet part 170a may be variously changed according to required conditions and design specifications.

On the other hand, in the above-described and illustrated embodiments of the present invention, the operation handle is described by way of example provided on the same line as the plunger, but in some cases, the operation handle may be configured to be disposed on the same line as the plunger.

That is, referring to FIG. 12, the syringe according to another embodiment of the present invention includes a barrel 110, a plunger 120, and a plunger manipulator 134, and the plunger manipulator 134 of the barrel 110. A housing 144 provided at the other end, an operation handle 154 rotatably mounted on one side of the housing 144, a conversion unit 180 for converting a rotational movement of the operation handle 154 into a linear motion, and The connection part 164 may be connected to the plunger 120 and may be linearly moved by the converter 180, and the plunger 120 may be linearly moved by the rotation operation of the operation handle 154.

The operation handle 180 may be variously disposed on the housing 144 according to the required conditions and design specifications. Hereinafter, an example in which the manipulation handle 180 is spaced apart from the right portion of the connecting portion 164 by a predetermined interval so as to have a rotation axis perpendicular to the axial direction of the plunger 120 will be described. In some cases, the operation handle may be arranged on the same line as the plunger, and the operation handle may be arranged to have a rotation axis that is horizontal or inclined with respect to the axial direction of the plunger.

The conversion unit 180 may be provided in various structures and manners capable of converting the rotational motion of the manipulation handle 154 into a linear motion. Hereinafter, the conversion unit 180 will be described with an example configured of at least one or more gear combinations. For example, the conversion unit 180 may include a first bevel gear 181 connected to the operation handle 154, a second bevel gear 182 meshing with the first bevel gear, and the second bevel gear 182. It may be configured to include a pinion gear 183 rotated by, and a rack gear 184 provided to the connecting portion 164 to engage the pinion gear (183). The manipulation force (rotational force) by the manipulation handle 154 is transmitted through the bevel gears 181 and 182, and then converted into linear motion by the pinion gear 183 and the rack gear 184, and the connection portion 164 May be linearly moved by receiving the manipulation force of the manipulation handle 180 by the converter 180.

In the embodiment of the present invention has been described with an example in which the conversion unit is composed of a gear combination, in some cases the conversion unit may be configured as a cam (cam) structure, it is possible to be provided in other structures and manners.

Meanwhile, in the above-described and illustrated embodiments of the present invention, the housing is integrally formed in the barrel and the connecting portion is integrally formed in the plunger, but in some cases, the plunger operation part may be provided separately from the barrel and the plunger. have.

That is, referring to FIG. 13, the syringe according to another embodiment of the present invention includes a barrel 110, a plunger 120, and a plunger manipulation part 130 ′, and the plunger manipulation part 130 ′ is a barrel 110. And it may be provided separated from the plunger 120 may be connected by a conventional assembly or coupling and attachment method. For example, the connection portion 160 ′ of the plunger manipulation part 130 ′ may be connected to the end of the plunger 120 by a conventional assembly structure, and the housing 140 ′ may be connected to the end of the barrel 110 by a conventional assembly structure. It can be connected to the end.

In the embodiment of the present invention has been described with an example configured to be connected in such a way that one end of the connecting portion and the housing is fitted to the plunger and the barrel, respectively, but in some cases the connecting portion and the plunger, the housing and the barrel are It can be configured to be connected to each other.

As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

110: barrel 112: nozzle
120: plunger 130: plunger operation unit
140: operation handle 150: restraint groove
160: housing

Claims (16)

In the centrifugal syringe used for centrifugation,
A barrel having a nozzle formed at one end thereof;
A plunger accommodated in the barrel so as to be linearly movable; And
Disposed on the other end of the barrel in a reciprocating manner, connected to move together with the plunger and reciprocating integrally with the plunger,
And a plunger manipulator selectively restraining an arrangement of the plunger with respect to the barrel.
The plunger operation portion can be fixed at one of a plurality of points within the reciprocating movement section according to the capacity of the object to be treated in the barrel to be centrifuged.
And the plunger is interlocked by a reciprocating movement operation of the plunger operation portion and moves linearly with respect to the barrel, and is fixed at a specific position in the barrel together with the plunger operation portion during centrifugation. The method of claim 1,
The plunger operation unit,
A housing provided at the other end of the barrel;
An operation handle provided to be linearly movable on the housing; And
And a connection part connecting the plunger and the operation handle.
And the plunger moves linearly by linear operation of the operation handle. The method of claim 2,
And the housing is integrally formed or assembled to the barrel. The method of claim 2,
And the connection portion is integrally formed or assembled to the plunger. The method of claim 2,
The guide slot is formed through the housing,
And the operation handle is exposed to the outside of the housing through the guide slot. delete The method of claim 5,
The inner wall surface of the guide slot is formed with a plurality of constraint grooves spaced apart,
And the operation handle is selectively provided to be moved to a restraint position constrained by the restraint groove and a release position from which the restraint state is released. The method of claim 7, wherein
The plunger operation unit further includes an elastic unit for elastically connecting the connection unit and the operation handle,
And the operation handle is elastically supported by the elastic portion and moves linearly between the restraint position and the release position. The method of claim 2,
The housing is formed with a ratchet portion having a plurality of locking jaws (ratchet portion),
The plunger operation part includes a ratchet pawl rotatably coupled to the operation handle or the connection part based on one end,
The ratchet pole is rotated with respect to the one end and the syringe, characterized in that disposed in the restrained position and restrained position to be restrained selectively restrained by the locking jaw. The method of claim 2,
The connection portion is formed with a screw hole, the operation handle is coupled to the screw hole to be screwed,
And the end of the manipulation handle is pressed against and restrained by an inner surface of the housing during the screwing operation of the manipulation handle. delete delete delete A barrel having a nozzle formed at one end thereof;
A plunger accommodated in the barrel so as to be linearly movable;
A housing provided at the other end of the barrel;
An operation handle rotatably mounted to one side of the housing;
A converting unit converting the rotational movement of the manipulation handle into a linear movement; And
And a connection part connected to the plunger and linearly moved by the conversion part.
And the plunger moves linearly by a rotation operation of the operation handle. The method of claim 14,
The conversion unit is a syringe, characterized in that composed of at least one gear combination. The method of claim 14,
And the operation handle is disposed on the same line as the plunger or on the same line as the plunger.

Images