JP2014030540A - Medical connector and medical liquid storage unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medical connector and medical liquid storage unit capable of facilitating an operation to remove the connector and suppressing a probability to cause the connector to unintentionally come off.SOLUTION: A medical connector 100 includes: a first connector part 10 and a second connector part 20 that are mutually connected; and a release operation part 30 for releasing the lock state of the second connector part 20 with respect to the first connector part 10. The second connector part 20 is separated from the first connector part 10 while pressurizing the release operation part 30 by a manual operation in the opposite direction of a direction to allow the first connector part 10 and the second connector part 20 to be mutually separated. Then, the first connector part 10 is removed from the second connector part 20.

Description

  The present invention relates to a medical connector and a medical reservoir.

  As a medical connector used for connection of a medical pipe, there is one described in Patent Document 1, for example.

  The medical connector of Patent Document 1 includes a first connector part (female connector of the same document) in which a groove part (second groove part of the same document) is formed on the outer peripheral surface, and a cylindrical part into which the first connector part is inserted. And a second connector portion (male connector of the same document). An inward claw portion that is locked to the second groove portion is formed at the tip of the cylindrical portion on the first connector portion side. The first and second connector parts are connected to each other by pushing the first connector part into the cylindrical part so that the claw part is locked to the second groove part.

Patent Document 1 describes the following first and second modes.
<First aspect>
Apart from the second groove portion, two groove portions (a third groove portion and a fourth groove portion) are formed on the outer peripheral surface of the first connector portion. The third groove portion is disposed on the back side of the second groove portion (the side opposite to the second connector portion), and a convex portion exists between the second groove portion and the third groove portion. . The fourth groove portion is continuous with the third groove portion, and extends in the direction around the axis and on the second connector portion side.
In order to separate the first and second connector parts, first, the first connector part is further pushed into the cylindrical part, and the claw part is moved from the second groove part into the third groove part. Next, the second connector part is pulled away from the first connector part while relatively rotating the second connector part about the axis with respect to the first connector part. Accordingly, the claw portion moves from the third groove portion into the fourth groove portion, is guided by the fourth groove portion, and moves in a direction away from the first connector portion. Thereby, the first and second connector portions are separated from each other.
<Second aspect>
Although a detailed description of the configuration is omitted, in the second mode, the second connector portion is at a predetermined rotation angle with respect to the first connector portion while further pushing the first connector portion into the cylindrical portion. By rotating the second connector part and pulling the second connector part away from the first connector part, the first and second connector parts are separated from each other.

  In addition, as a medical reservoir, there are a type that stores liquid collected from a patient's body and a type that stores liquid sent to the patient's body. As an example of the former, there is a medical suction liquid collector used for a chest drain or the like (Patent Document 2, etc.). The medical suction liquid collector has a main body part including a storage part for storing the collected liquid.

JP 2011-56009 A JP 2006-130170 A

Among the techniques of Patent Document 1, in the first aspect, in the state where the first and second connector parts are connected, the first connector part is unintentionally pushed into the cylindrical part, and the claw part is the third groove part. When it gets in, the nail | claw part will continue to move to a 4th nail | claw part, and a 1st and 2nd connector part may mutually isolate | separate.
On the other hand, in the second aspect, in order to separate the first and second connector portions from each other, a complicated operation as described above is required.

  The present invention has been made in view of the above-described problems, and is a medical connector and a medical storage capable of easily performing an operation of removing the connector and suppressing the possibility that the connector is unintentionally disconnected. Provide a liquid container.

The present invention provides a tubular first connector portion in which the first locking portion is formed on the outer peripheral surface;
A tubular second connector portion having a second locking portion locked to the first locking portion;
Have
By moving the second connector portion in the first direction toward the first connector portion, the second locking portion is locked to the first locking portion, and the second connector portion and the first connector 1 is a medical connector connected with a connector part in a state of communicating with each other,
A release operation part held by the second connector part in a state of being movable relative to the second connector part in the first direction and a second direction opposite to the first direction. In addition,
The release operation part is
An operation unit that receives a manual operation for pushing the release operation unit in the first direction relative to the second connector unit;
The second locking portion is engaged with the first locking portion by being provided integrally with the operating portion and moving in the first direction relative to the second connector portion together with the operating portion. A release part for releasing the stop state,
Have
The second connector performs a first operation to release the locked state by the manual operation and presses the operating portion in the first direction so that the locked state is released. A medical connector is provided in which the second connector part is detached from the first connector part by performing a second operation of moving the part in the second direction relative to the first connector part.

According to this medical connector, in order to remove the second connector portion from the first connector portion, first, the first engagement portion of the first connector portion and the second engagement of the second connector portion are manually operated on the operation portion. The locked state with the stop is released. That is, the first operation is performed. Then, the second connector portion is moved in the second direction relative to the first connector portion while pressing the operation portion in the first direction so that the locked state is released. The second operation needs to be performed.
Here, the direction of the first operation and the direction of the operation for maintaining the unlocked state are the first direction, while the second connector portion is pulled away from the first connector portion. The direction is the second direction opposite to the direction. For this reason, the second connector part cannot be detached from the first connector part simply by applying some force in the direction of pulling the second connector part away from the first connector part. In addition, there is a low possibility that the second connector portion is detached from the first connector portion when something hits the medical connector. Therefore, the connection reliability of the second connector portion with respect to the first connector portion is high.
However, the operation of pulling the second connector portion in the second direction relative to the first connector portion while pushing the release portion in the first direction relative to the second connector portion is a linear operation. Yes, does not include rotation operations. Therefore, the operation of removing the second connector portion from the first connector portion is easy when intentionally performed, and can be performed with one hand depending on the dimensions of the medical connector.
Thus, according to this medical connector, the operation of removing the second connector portion from the first connector portion is easy, and there is a possibility that the second connector portion may be unintentionally detached from the first connector portion. Can be suppressed.

Moreover, the present invention includes a main body including a reservoir that stores liquid;
A liquid supply pipe having one end connected to the main body,
A medical connector for connecting the main body and the liquid feeding tube to each other so that the reservoir and the liquid feeding tube communicate with each other;
Have
The medical connector is
A tubular first connector part having a first locking part formed on the outer peripheral surface, the first connector part being fixed to the main body part;
A tubular second connector portion having a second locking portion locked to the first locking portion;
Have
By moving the second connector portion in the first direction toward the first connector portion, the second locking portion is locked to the first locking portion, and the second connector portion and the first connector 1 Connected with the connector part in communication with each other,
The medical connector further includes:
A release operation part held by the second connector part in a state of being movable relative to the second connector part in the first direction and a second direction opposite to the first direction. Have
The release operation part is
An operation unit that receives a manual operation for pushing the release operation unit in the first direction relative to the second connector unit;
The second locking portion is engaged with the first locking portion by being provided integrally with the operating portion and moving in the first direction relative to the second connector portion together with the operating portion. A release part for releasing the stop state,
Have
The second connector performs a first operation to release the locked state by the manual operation and presses the operating portion in the first direction so that the locked state is released. A medical reservoir is provided in which the second connector part is detached from the first connector part by performing a second operation of moving the part in the second direction relative to the first connector part.

  ADVANTAGE OF THE INVENTION According to this invention, the operation which removes a connector is easy and it can suppress possibility that a connector will remove | deviate unintentionally.

It is a perspective view of the medical connector which concerns on embodiment, Among these, FIG. 1 (a) shows a separation state, FIG.1 (b) shows a connection state. It is a front view which shows the connection state of the medical connector which concerns on embodiment. It is a series of front views for explaining separation operation of the medical connector according to the embodiment. It is a side view (figure seen from the arrow C direction of FIG. 2) which shows the connection state of the medical connector which concerns on embodiment. It is a figure for demonstrating the latching reset part of the medical connector which concerns on embodiment. It is a front view of a medical reservoir according to an embodiment. It is a front sectional view of the medical connector concerning modification 1, among which (a) shows a separation state and (b) shows a connection state. It is a figure which shows the shape of the arm part of the medical connector which concerns on the modification 1, Among these, Fig.8 (a) is a front view, FIG.8 (b) is II sectional drawing of Fig.8 (a). It is a figure which shows the cancellation | release limitation member of the medical connector which concerns on the modification 3. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

FIG. 1 is a perspective view of a medical connector 100 according to an embodiment. 1A shows a separated state in which the first connector portion 10 and the second connector portion 20 are separated, and FIG. 1B shows a connection in which the first connector portion 10 and the second connector portion 20 are connected. Indicates the state.
FIG. 2 is a front view showing a connection state of the medical connector 100.
FIG. 3 is a series of front views for explaining a separation operation for separating the first connector portion 10 and the second connector portion 20 of the medical connector 100 from each other. Of these, FIG. 3A shows a state in which the locking state of the claw-like portion 26b with respect to the locking surface 14c is released by operating the release operation portion 30. FIG. FIG. 3B shows a state where the second connector portion 20 is pulled out from the first connector portion 10 and the second connector portion 20 and the first connector portion 10 are separated from each other. FIG. 3C shows a state where the second connector portion 20 is further away from the first connector portion 10 than in the state of FIG.
FIG. 4 is a side view showing the connection state of the medical connector 100 (viewed from the direction of arrow C in FIG. 2).
FIG. 5 is a view for explaining the locking return portion 33 of the medical connector 100. FIGS. 5A, 5 </ b> B, and 5 </ b> C are cross-sectional views along the axial center of the second connector portion 20. Of these, FIGS. 5 (a) and 5 (b) show a part of the second connector part 20 (second hook-like part 24) and the locking return part 33, and FIG. 5 (c). Shows only the locking return portion 33.

  The medical connector 100 according to the present embodiment includes a first connector part 10, a second connector part 20, and a release operation part 30. The first connector portion 10 is tubular. A first locking portion (for example, including the locking surface 14 c and the locking groove 12) is formed on the outer peripheral surface of the first connector portion 10. The second connector portion 20 is tubular. The 2nd connector part 20 has the 2nd latching | locking part (latching part 26) latched with respect to a 1st latching | locking part. By moving the second connector portion 20 toward the first connector portion 10 in the first direction (the direction of arrow A in FIG. 1A), the second locking portion is locked to the first locking portion. The second connector part 20 and the first connector part 10 are connected in a state of communicating with each other. The release operation unit 30 is in the first direction and in the second direction opposite to the first direction (the direction of arrow B in FIGS. 3B and 3C) with respect to the second connector unit 20. It is held by the second connector portion 20 in a relatively movable state. The release operation unit 30 includes an operation unit 31 and a release unit 32. The operation unit 31 receives a manual operation for pushing the release operation unit 30 in the first direction relative to the second connector unit 20. The release unit 32 is provided integrally with the operation unit 31. The release part 32 moves in the first direction relative to the second connector part 20 together with the operation part 31 to release the locked state of the second locking part with respect to the first locking part. A first operation for releasing the locking state of the second locking portion with respect to the first locking portion by manual operation is performed, and the operation portion 31 is moved to the first position so that the locked state is maintained. The second connector portion 20 is detached from the first connector portion 10 by performing a second operation of moving the second connector portion 20 in the second direction relative to the first connector portion 10 while pressing in the direction. In addition, the medical connector 100 is configured.

  As shown in FIGS. 1 to 4, the first connector portion 10 and the second connector portion 20 are coaxial with each other during the operation of bringing the medical connector 100 into a connected state or into a separated state, and in the connected state. Be placed. In the following description, it is assumed that the relative arrangement of the first connector part 10 and the second connector part 20 is the arrangement shown in FIGS. 1 to 4. The shape will be described.

<Configuration of first connector section>
As shown in FIGS. 1 to 4, the first connector portion 10 includes a tubular (tubular) first connector body 11. The first connector body 11 is set to have a constant inner diameter, for example, from one end 16 side to the other end 17 side. The other end 17 is an end portion on the first direction side in the first connector portion 10, and one end 16 is an end portion on the second direction side in the first connector portion 10. The first connector body 11 is set to have a constant outer diameter, for example, from one end 16 side to the other end 17 side. However, a first hook-like portion 14 and a hook-like portion 15 described below are formed integrally with the first connector main body 11 on the outer peripheral surface of the first connector main body 11.

  The first hook-shaped portion 14 bulges in a radial direction from the first connector main body 11 in a part of the first connector main body 11 in the axial direction. Similarly, the hook-shaped portion 15 bulges in the radial direction from the first connector main body 11 in a part of the first connector main body 11 in the axial direction. That is, the first hook-like portion 14 and the hook-like portion 15 are formed to have a larger diameter than the first connector main body 11. The first hook-like part 14 and the hook-like part 15 are separated from each other in the axial direction of the first connector body 11. Of the first hook-like part 14 and the hook-like part 15, the first hook-like part 14 is located on the one end 16 side, and the hook-like part 15 is located on the other end 17 side. The first hook-like portion 14 is separated from the one end 16 in the axial direction of the first connector main body 11. Further, the hook-shaped portion 15 is separated from the other end 17 in the axial direction of the first connector body 11.

  The first hook-like portion 14 has a tapered portion 14 a and a top portion 14 b that are adjacent to each other in the axial direction of the first connector body 11. The tapered portion 14a is located on one end 16 side, that is, the second direction side, and the top portion 14b is located on the other end 17 side, that is, the first direction side.

  The tapered portion 14a is enlarged in a taper shape from the one end 16 side toward the other end 17 side. Therefore, the outer peripheral surface of the tapered portion 14 a is inclined from the one end 16 side toward the other end 17 side so as to be away from the axis of the first connector body 11. That is, the outer peripheral surface of the first hook-like portion 14 includes a first inclined surface that is inclined so as to gradually move away from the axis of the first connector body 11 in the first direction.

  The top portion 14b is formed in a cylindrical shape. That is, the outer peripheral surface of the top portion 14 b has a constant distance from the axis of the first connector body 11.

  The distance from the axial center of the first connector main body 11 to the outer peripheral surface of the top portion 14b is equal to the maximum value of the distance from the axial center of the first connector main body 11 to the outer peripheral surface of the tapered portion 14a. The outer peripheral surface of 14a and the outer peripheral surface of the top portion 14b are continuously formed.

  The end surface on the other end 17 side (first direction side) of the first flange 14 is a locking surface 14c facing the other end 17 side (facing the first direction). The locking surface 14 c is a step surface facing the first direction, and is orthogonal to the axial direction of the first connector body 11.

  The first hook-like portion 14 is formed over the entire circumference of the first connector body 11 (formed in a shape that circulates the first connector body 11 by 360 °). Therefore, the locking surface 14c is formed in a shape that circulates the first connector portion 10 around the axis by 360 °.

  The first flange 14 is disposed coaxially with the first connector body 11.

  The flange portion 15 is formed in a cylindrical shape and is arranged coaxially with the first connector body 11. The outer peripheral surface of the bowl-shaped portion 15 has a constant distance from the axis of the first connector body 11. For example, the outer diameter of the bowl-shaped part 15 is larger than the outer diameter of the top part 14b.

  A portion between the first flange portion 14 and the flange portion 15 on the outer peripheral surface of the first connector main body 11 is a groove-like locking groove 12 extending in the circumferential direction of the first connector main body 11. . The locking groove 12 constitutes a first locking portion together with the locking surface 14c. The locking groove 12 is formed in a shape that circulates the outer peripheral surface of the first connector body 11 around the central axis of the first connector body 11 by 360 °.

<Configuration of second connector section>
The second connector portion 20 includes a tubular (tubular) second connector main body 21, a second flange portion 24, a locking portion (second locking portion) 26, and an O-ring 29 (FIG. 3C). ) And.

  The second connector main body 21 is set to have a constant inner diameter, for example, from one end 27 side to the other end 28 side. The one end 27 is an end portion on the first direction side in the second connector portion 20, and the other end 28 is an end portion on the second direction side in the second connector portion 20.

  The second connector main body 21 has a first insertion portion 22, a tube fixing portion 23, and a second insertion portion 25.

The first insertion portion 22 constitutes a portion of the second connector main body 21 on the one end 27 side (first direction side). The outer diameter of the first insertion part 22 is set slightly smaller than the inner diameter of the first connector body 11 of the first connector part 10. In the connected state, the first insertion portion 22 is inserted into the first connector body 11.
That is, one of the first connector part 10 and the second connector part 20 is a male connector, and the other is a female connector, and one end of the male connector enters the pipe of the female connector in the connected state. It becomes a state. In the present embodiment, the first connector portion 10 is a female connector and the second connector portion 20 is a male connector. In the connected state, the first insertion portion 22 enters the first connector body 11.

  On the outer peripheral surface of the first insertion portion 22, an O-ring fixing groove 22 a that circulates 360 ° around the central axis of the second connector body 21 is formed. The O-ring 29 is fixed around the first insertion portion 22 by fitting the O-ring 29 into the O-ring fixing groove 22a. In FIG. 1A, the O-ring 29 is not shown and the O-ring fixing groove 22a is shown. In the connected state, the O-ring 29 is in a compressed state and comes into close contact with the inner peripheral surface of the first connector body 11 and the O-ring fixing groove 22a.

  The second hook-shaped portion 24 is adjacent to the first insertion portion 22 on the other end 28 side (second direction side). The second insertion portion 25 is adjacent to the second flange portion 24 on the other end 28 side. The tube fixing portion 23 is adjacent to the second insertion portion 25 on the other end 28 side.

  The tube fixing portion 23 constitutes a portion of the second connector main body 21 on the other end 28 side. By inserting the tube fixing portion 23 into one end of the liquid collection tube 155 (FIG. 6) or the suction tube 157 (FIG. 6), one end of the liquid collection tube 155 or the suction tube 157 is fixed to the tube fixing portion 23. In addition, the second connector body 21 and the liquid collection pipe 155 or the suction pipe 157 communicate with each other.

  On the outer peripheral surface of the tube fixing portion 23, a tube fixing hook portion 23 a is formed by turning the outer peripheral surface around the central axis of the second connector body 21 by 360 °. As the tube fixing hook portion 23 a bites into the inner peripheral surface of the liquid collection tube 155 or the suction tube 157, the liquid collection tube 155 or the suction tube 157 is prevented from coming off from the tube fixing portion 23.

  The second hook-like portion 24 bulges in a radial direction from the second connector main body 21 in a part of the second connector main body 21 in the axial direction. That is, the second hook-shaped portion 24 is formed to have a larger diameter than the second connector main body 21. The second hook-like part 24 is formed with a larger diameter than the first hook-like part 14. The second bowl-shaped portion 24 is formed in a disk shape (cylindrical shape), for example.

  The locking part 26 has, for example, an arm part 26a and a claw-like part 26b.

  The arm portion 26 a is a rod-shaped portion that extends in the axial direction of the second connector body 21 around the second connector body 21. The arm portion 26a is held in a cantilever manner by the second hook-like portion 24. That is, the arm part 26a protrudes from the second hook-shaped part 24 toward the one end 27 side (in the first direction). The arm portion 26 a can be elastically deformed in the radial direction of the second connector body 21.

  The claw-like portion 26b protrudes inward (toward the central axis of the second connector main body 21) from one end 27 side of the arm portion 26a, that is, the end portion on the first direction side.

When the claw-like portion 26b is locked to the locking surface 14c and the locking groove 12, the second connector portion 20 and the first connector portion 10 are connected to each other (FIG. 2).
More specifically, by moving the second connector portion 20 in the first direction relative to the first connector portion 10, the arm portion 26 a of the locking portion 26 moves in the radial direction of the first connector body 11. While elastically deforming, the claw-shaped portion 26b of the locking portion 26 gets over the first inclined surface (the outer peripheral surface of the tapered portion 14a), and the claw-shaped portion 26b is locked to the locking surface 14c and the locking groove 12. The

  For example, the second connector portion 20 has a plurality of locking portions 26. More specifically, for example, the second connector portion 20 has a pair of locking portions 26 arranged at intervals of 180 degrees in the circumferential direction of the second connector portion 20.

  A guide hole 24a and an engagement groove 24b are formed in the second hook-shaped portion 24.

The guide hole 24a passes through the second flange-shaped portion 24 in the axial direction of the second connector body 21 (from the second direction side to the first direction side) at a position near the base end of each arm portion 26a. . The guide hole 24a is located on the center axis side of the second connector part 20 with respect to the base end of each arm part 26a.
A release portion 32 (described later) of the release operation portion 30 is inserted through the guide hole 24a, and the release portion 32 penetrates the second hook-like portion 24 from the second direction side to the first direction side.

The engagement groove 24 b is recessed from the outer peripheral surface of the second hook-shaped portion 24 toward the central axis side of the second connector portion 20. The engagement groove 24b extends from the end portion on the second direction side to the end portion on the first direction side in the second flange-shaped portion 24 along the axis of the second connector body 21. The engagement return portion 33 of the release operation portion 30 is engaged with the engagement groove 24b.
For example, the guide holes 24 a and the engaging grooves 24 b are alternately arranged at 90 ° intervals in the circumferential direction of the second connector portion 20.

  The dimension of the second insertion part 25 in the radial direction of the second connector main body 21 is smaller than the dimension of the second hook-shaped part 24 in the same direction and larger than the dimension of the tube fixing part 23 in the same direction. The second insertion portion 25 is inserted into an insertion hole 31 a of the operation portion 31 described later of the release operation portion 30.

<Configuration of release operation section>
The release operation unit 30 includes an operation unit 31 and a release unit 32. The operation unit 31 and the release unit 32 are provided integrally with each other.

  The operation unit 31 receives a manual operation for pushing the release operation unit 30 in the first direction relative to the second connector unit 20. The operation unit 31 is disposed on the second direction side with respect to the second bowl-shaped portion 24.

  Specifically, for example, the operation unit 31 is formed in a disk shape, and its plate surface faces the first direction and the second direction. In the center of the operation portion 31, an insertion hole 31a into which the second insertion portion 25 is inserted is formed.

  The release part 32 moves in the first direction relative to the second connector part 20 together with the operation part 31, thereby releasing the locking state of the claw-like part 26 b with respect to the locking surface 14 c and the locking groove 12. .

For example, the release portion 32 is interrupted between the first connector portion 10 and the locking portion 26 when the release operation portion 30 is moved in the first direction relative to the second connector portion 20 (FIG. 3). (A)). When the release part 32 cuts in between the first connector part 10 and the locking part 26, the locking part 26 is elastically deformed in a direction away from the locking surface 14 c and the locking groove 12.
For example, the release portion 32 is interrupted between the first hook-like portion 14 and the locking portion 26 when the release operation portion 30 is moved in the first direction relative to the second connector portion 20 (FIG. 3 (a)). When the release part 32 cuts between the first hook-shaped part 14 and the locking part 26, the locking part 26 is elastically deformed in a direction away from the locking surface 14 c and the locking groove 12.
For example, the release portion 32 is interrupted between the first connector portion 10 and the arm portion 26a when the release operation portion 30 is moved in the first direction relative to the second connector portion 20 (FIG. 3 ( a)). When the release portion 32 is interposed between the first connector portion 10 and the arm portion 26a, the arm portion 26a is elastically deformed in a direction in which the claw-like portion 26b is detached from the locking surface 14c and the locking groove 12.

  The release part 32 is a rod-shaped elastic piece protruding from the operation part 31 in the first direction. The release part 32 penetrates the second hook-like part 24 from the second direction side to the first direction side by being inserted through the guide hole 24a of the second hook-like part 24. Accordingly, the release operation unit 30 is held by the second connector unit 20 in a state in which the release operation unit 30 is relatively movable with respect to the second connector unit 20 in the first direction and the second direction.

  The thickness of the release portion 32 in the radial direction of the second connector portion 20 is equal to the protruding length of the claw-shaped portion 26b in the radial direction of the second connector portion 20 (the protruding length of the claw-shaped portion 26b from the arm portion 26a). Yes, or more than equivalent.

The release operation part 30 has the same number of release parts 32 as the locking parts 26. That is, in the present embodiment, the release operation unit 30 includes a pair of release units 32. The pair of release portions 32 are arranged at intervals of 180 degrees in the circumferential direction of the second connector portion 20.
In the radial direction of the second connector portion 20, the interval between the release portions 32 is set to be the same as or slightly larger than the outer diameter of the first connector body 11.

  In the release part 32, the part protruding in the first direction side from the second hook-like part 24 is between the first insertion part 22 and the arm part 26 a of the locking part 26 corresponding to the release part 32. And extends along the inner surface (the central axis side of the second connector portion 20) of the arm portion 26a.

  When the release operation part 30 moves relative to the second connector part 20 in the first direction and the second direction, the release part 32 is moved in the first direction and the second direction by the guide hole 24a of the second hook-like part 24. Guided in two directions. The guide hole 24 a is formed in a size and shape that allows the release portion 32 to elastically deform in the radial direction of the second connector portion 20.

  Further, when the release operation unit 30 moves relative to the second connector unit 20 in the first direction and the second direction, the second insertion unit 25 is inserted into the insertion hole 31a and the operation unit 31 is moved. On the other hand, it moves relatively in the first direction and the second direction. At that time, the second insertion portion 25 may be guided by the insertion hole 31a or may not be guided. Not only is the release part 32 inserted through the second hook-like part 24 but also the second insertion part 25 is inserted into the operation part 31, so that the release operation part 30 is more reliably secured by the second connector part 20. Is retained.

<Configuration of locking return part>
The locking return part 33 elastically urges the release operation part 30 relative to the second connector part 20 in the second direction, and the urging force causes the release operation part 30 to be moved to the second connector part. 20 can be moved relative to the second direction.

  As shown in FIGS. 5A and 5B, the locking return portion 33 is provided integrally with the release operation portion 30. The locking return part 33 is held in a cantilever manner by the operation part 31 and protrudes from the operation part 31 in the first direction. Further, the locking return portion 33 is engaged with the engaging groove 24 b of the second hook-like portion 24.

The locking return portion 33 is pushed by the second connector portion 20 when the release operation portion 30 moves in the first direction relative to the second connector portion 20, and is thus radially out of the second connector portion 20. This is an elastic piece (plate spring) that is elastically deformed in the direction (in the direction of arrow D in FIG. 5B).
That is, when the release operation part 30 moves in the first direction relative to the second connector part 20, the locking return part 33 is connected to the bottom surface of the engagement groove 24 b of the second hook-like part 24 (second It is pushed by the central axis side surface of the connector part 20 and elastically deforms radially outward of the second connector part 20 (FIG. 5B).

  The locking return portion 33 moves the release operation portion 30 relative to the second connector portion 20 by the component force of the elastic return force (the force to elastically return in the direction of arrow E in FIG. 5C). Energizing in the second direction.

  The locking return portion 33 remains engaged with the engaging groove 24b and is elastically deformed outwardly in the radial direction of the second connector portion 20 by being pushed by the second hook-like portion 24. An elastic return operation to the axial center side of the connector part 20 is performed.

  Here, the bottom surface of the engagement groove 24b (the surface on the central axis side of the second connector portion 20) is inclined so as to be away from the center of the second connector portion 20 in the first direction. Accordingly, the locking return portion 33 as shown in FIG. 5B can be easily deformed, and the release operation portion 30 can be easily urged by the elastic return force of the locking return portion 33. Can do.

In addition, an end surface on the first direction side of the surface that contacts the bottom surface of the engagement groove 24b in the locking return portion 33 is inclined so as to be away from the center of the second connector portion 20 in the first direction. 33a.
As a result, as shown in FIG. 5A, the biasing operation of the release operation unit 30 due to the elastic return force of the locking return unit 33 does not occur before the release operation unit 30 is moved in the first direction. It is like that.

The medical connector 100 has a plurality of locking return portions 33, for example. Specifically, for example, the medical connector 100 has a pair of locking return portions 33. The pair of locking return portions 33 are arranged at intervals of 180 degrees in the circumferential direction of the second connector portion 20.
Note that the locking return portions 33 and the release portions 32 are alternately arranged at intervals of 90 degrees in the circumferential direction of the second connector portion 20.

  At the end portion on the first direction side of the locking return portion 33, a drop-off restricting hook 34 that restricts the release operation portion 30 from dropping from the second connector portion 20 in the second direction is formed. The drop-off restricting hook 34 protrudes inward (toward the central axis side of the second connector portion 20) from the end portion on the first direction side in the locking return portion 33. The drop-off restricting hook 34 is adjacent to the inclined surface 33a on the first direction side.

  In addition, the 1st connector part 10, the 2nd connector part 20, the cancellation | release operation part 30, and the latching reset part 33 can be comprised by a synthetic resin, for example. These materials may be the same as each other or different from each other. For example, the second connector part 20 can be made of polypropylene or the like. Moreover, it is a preferable example that the 1st connector part 10, the release operation part 30, and the latching return part 33 are hard rigid resins, such as ABS (Acrylonitrile-Butadiene-Styrene) resin or AS (Acrylonitrile-Styrene). .

  Next, the operation will be described.

  First, an operation for bringing the medical connector 100 into a connected state will be described.

For example, as shown in FIG. 1, in a state where the first connector portion 10 and the second connector portion 20 are coaxially arranged, the second connector portion 20 is moved in the first direction toward the first connector portion 10. . Then, the first insertion portion 22 is inserted into the first connector portion 10. By further moving the second connector part 20 in the first direction relative to the first connector part 10, the locking part 26 is locked to the locking surface 14 c and the locking groove 12.
At this time, the claw-like portion 26b first rides on the outer peripheral surface of the tapered portion 14a and then rides on the top portion 14b. At that time, the claw-like portion 26b is gradually pushed outward in the radial direction of the first connector body 11 by the tapered portion 14a, so that the arm portion 26a is gradually elastically deformed radially outward of the first connector body 11. . Thereafter, the claw-like portion 26 b gets over the first flange-like portion 14 by further moving the second connector portion 20 in the first direction relative to the first connector portion 10. Then, the distal end portion of the arm portion 26a is elastically deformed (elastically restored) inward in the radial direction of the first connector body 11, and the claw-like portion 26b is locked to the locking surface 14c and the locking groove 12. (FIG. 1 (b), FIG. 2).
Thus, the medical connector 100 is in a connected state.

  As described above, the locking surface 14c and the locking groove 12 are formed in a shape that rotates the first connector portion 10 around the axis by 360 °. The first connector main body 11 is formed to have a constant outer diameter, and the first hook-shaped portion 14 is disposed coaxially with the first connector main body 11. Therefore, in the state where the rotation angle of the second connector part 20 around the axis of the second connector part 20 is an arbitrary angle of 360 °, the second connector part 20 is moved in the first direction toward the first connector part 10. As a result, the claw-like portion 26b is locked to the locking surface 14c and the locking groove 12 to be in a connected state. That is, when connecting the 2nd connector part 20 to the 1st connector part 10, the relative angle of the 2nd connector part 20 and the 1st connector part 10 is not ask | required in the circumference direction.

  Further, as described above, the locking surface 14c and the locking groove 12 are formed in a shape that circulates the first connector portion 10 around the axis by 360 °, so that the claw-like portion 26b is connected to the locking surface 14c and the engaging groove. In a state of being locked in the stop groove 12, that is, in a connected state, the second connector portion 20 can rotate 360 ° around the axis relative to the first connector portion 10. When the second connector unit 20 rotates with respect to the first connector unit 10, the release unit 32 can move smoothly along the outer peripheral surface of the first connector body 11.

In the connected state, the portion of the release portion 32 that protrudes from the second hook-shaped portion 24 in the first direction is located between the outer peripheral surface of the first connector body 11 and the locking portion 26, and The distal end portion of the release portion 32 on the first direction side does not ride on the top portion 14b of the first bowl-shaped portion 14 (FIG. 2).
Further, in the connected state, one end 16 of the first connector main body 11 abuts against the end surface on the first direction side of the second hook-shaped portion 24 or the one end 16 is close to the end surface.

  Next, an operation for bringing the medical connector 100 into a separated state will be described.

  First, the release operation unit 30 is moved in the first direction relative to the second connector unit 20 by pressing the operation unit 31 with the fingers in the first direction. As a result, as shown in FIG. 3A, the tip of the release portion 32 on the first direction side rides on the top portion 14b of the first hook-like portion 14, and the release portion 32 is connected to the top portion 14b and the arm portion 26a. Interrupt in between. As a result, the arm portion 26a is pushed radially outward of the first connector portion 10 by the release portion 32, and the distal end side of the arm portion 26a is elastically deformed radially outward of the first connector portion 10 to form a claw-shaped portion. 26 b comes off the locking surface 14 c and the locking groove 12. That is, by performing the first operation, the locking state of the claw-shaped portion 26b with respect to the locking surface 14c and the locking groove 12 is released.

  Subsequently, as shown in FIG. 3B, the second connector portion 20 is moved to the first connector portion 10 while pressing the operation portion 31 in the first direction so that the locked state is released. On the other hand, a second operation for moving in the second direction relatively is performed. As a result, the second connector portion 20 is detached from the first connector portion 10.

  Subsequently, as shown in FIG. 3C, the first insertion portion 22 is moved to the first connector portion 10 by further moving the second connector portion 20 in the second direction relative to the first connector portion 10. The second connector part 20 can be separated from the first connector part 10.

  Next, an operation when the pressing operation of the operation unit 31 in the first direction is stopped after the first operation and before performing the second operation will be described.

  In this case, the release operation part 30 moves in the second direction relative to the second connector part 20 by the action of the locking return part 33. As a result, the release portion 32 is pulled out in the second direction from between the top portion 14b of the first hook-shaped portion 14 and the arm portion 26a, and the claw-shaped portion 26b is locked to the locking surface 14c and the locking groove 12. (FIG. 2).

  Next, a medical suction liquid collector as an example of a medical liquid reservoir according to the embodiment will be described. FIG. 6 is a front view of the medical suction collector 150 according to the present embodiment.

The medical suction collector 150 includes a main body portion 150a including a storage portion 151 that stores liquid, a liquid supply pipe (for example, a liquid collection tube 155) having one end connected to the main body portion 150a, and a storage portion 151 and a liquid supply portion. The medical connector 100 connects the main body 150a and the liquid feeding tube to each other so that the tubes communicate with each other. The configuration of the medical connector 100 is as described above.
Details will be described below.

  The main body 150 a has a water trap part (water seal part) 152 and a suction pressure adjustment part 153 in addition to the storage part 151. The water trap unit 152 and the suction pressure adjusting unit 153 each store liquid in advance.

  For example, a liquid collection pipe connection portion is provided at each of a plurality of locations in the upper end portion of the main body 150a, and each liquid collection pipe connection portion is provided with the other end 17 of the first connector portion 10 of the medical connector 100 ( FIG. 1A is fixed.

  For example, the second connector portion 20 is connected to one first connector portion 10 among them. Furthermore, one end of a liquid collecting tube 155 is connected to the second connector portion 20. That is, the liquid collection pipe 155 is connected to the second connector section 20 by inserting the pipe fixing section 23 of the second connector section 20 into one end of the liquid collection pipe 155. As a result, the liquid collection tube 155 and the storage unit 151 communicate with each other via the medical connector 100.

  The other first connector portion 10 is provided with a plug 159, for example. If necessary, after the stopper 159 is removed from the first connector portion 10, the second connector portion 20 and the liquid collection tube 155 can be additionally connected to the first connector portion 10.

Further, a suction pipe connecting portion is formed at the upper end portion of the main body portion 150a. There is a case where a backflow prevention valve is provided in the suction pipe connecting portion and a case where it is not provided. When the backflow prevention valve is not provided in the suction pipe connection part, it can be set as the structure which fixed the other end 17 (FIG. 1 (a)) of the 1st connector part 10 of the medical connector 100 to the suction pipe connection part. . In this case, the second connector portion 20 is connected to the first connector portion 10, and one end portion of the suction pipe 157 is further connected to the second connector portion 20. As a result, the suction tube 157 communicates with the water trap unit 152 and the suction pressure adjustment unit 153 via the medical connector 100.
Here, if the medical connector 100 of the suction tube connection portion and the medical connector 100 of the liquid collection tube connection portion are the same as each other, there is a possibility of erroneous connection. Therefore, it is mentioned that the diameter dimensions of the medical connector 100 are different from each other in the suction tube connection portion and the liquid collection tube connection portion. Thereby, generation | occurrence | production of a misconnection can be prevented. In the example shown in FIG. 6, the diameter of the medical connector 100 at the suction tube connection portion is set smaller than the diameter of the medical connector 100 at the liquid collection tube connection portion.
Alternatively, the male connector and the female connector are reversed between the medical connector 100 at the suction tube connection portion and the medical connector 100 at the liquid collection tube connection portion (see Modification 1 described later) to prevent erroneous connection. be able to. That is, any one of the medical connector 100 of the suction pipe connection part and the medical connector 100 of the liquid collection pipe connection part is the one of this embodiment, and the other is the one of the first modification described later. Thus, erroneous connection can be prevented.

The other end of the collecting tube 155 is guided to the patient side (for example, the lung). The other end of the suction pipe 157 is connected to a suction pump (not shown).
When the medical suction collector 150 is used, the inside of the main body 150a is sucked by the suction pump. Thereby, first, liquid (body fluid etc.) is collected in the main-body part 150a via the liquid collection pipe | tube 155. FIG. This liquid is stored in the storage unit 151.
Here, due to the suction by the suction pump, the gas passes from the liquid collection pipe 155 to the suction pump side through the water trap part 152 and the suction pipe 157 in the main body part 150a in order.

  When the liquid in the reservoir 151 is discarded, the plug 160 of the drainage port 158 provided at the upper end of the main body 150a is removed, and the main body 150a is turned upside down so that the liquid is discharged from the drainage port 158. It flows out of the part 150a.

  Here, if the main body part 150a is turned upside down while the liquid collection pipe 155 and the suction pipe 157 are connected to the main body part 150a, the liquid in the main body part 150a flows into the liquid collection pipe 155 and the suction pipe 157. The work is difficult.

  Therefore, in the present embodiment, each of the medical connectors 100 on the liquid collection side and the suction side is in a separated state, and the main body portion 150a is attached with a plug 159 attached to the first connector portion 10 of each medical connector 100. Discard the liquid inside. As a result, the liquid does not flow into the liquid collection tube 155 and the suction tube 157, and the drainage operation can be easily performed.

The medical suction collector 150 has a hand grip 170 provided at the upper end of the main body 150a. The medical suction liquid collector 150 can be easily carried by holding the handle portion 170 by hand.
Further, the medical suction liquid collector 150 has a hanging hook 180 provided at the upper end of the main body 150a. By locking the suspension hook 180 to a bed or the like, the medical suction liquid collector 150 can be directly suspended from the bed or the like.

According to the embodiment as described above, in order to remove the second connector part 20 from the first connector part 10, first, the locking surface 14 c and the locking groove of the first connector part 10 are manually operated by the operation part 31. 12 and the nail | claw-shaped part 26b of the 2nd connector part 20 are cancelled | released. That is, the first operation is performed. Then, the second connector portion 20 is moved relative to the first connector portion 10 in the second direction while pressing the operation portion 31 in the first direction so that the locked state is released. It is necessary to perform the second operation to move to.
Here, the direction of the first operation and the direction of the operation for maintaining the released state of the locked state are the first direction, whereas the second connector portion 20 is replaced with the first connector portion 10. The direction away from the second direction is the second direction in the opposite direction. For this reason, the second connector part 20 cannot be detached from the first connector part 10 simply by applying some force in the direction in which the second connector part 20 is pulled away from the first connector part 10. In addition, there is a low possibility that the second connector portion 20 is detached from the first connector portion 10 when something hits the medical connector 100. Therefore, the connection reliability of the second connector part 20 with respect to the first connector part 10 is high.
However, the operation of pulling the second connector part 20 in the second direction relative to the first connector part 10 while pushing the release part 32 in the first direction relative to the second connector part 20 is a straight line. This is the above operation and does not include the rotation operation. Therefore, the operation of removing the second connector portion 20 from the first connector portion 10 is easy when performed intentionally, and can be performed with one hand depending on the dimensions of the medical connector 100.
In short, according to the medical connector 100, the operation of removing the second connector part 20 from the first connector part 10 is easy, and the second connector part 20 can be unintentionally detached from the first connector part 10. Sex can be suppressed.

  Since the locking surface 14c and the locking groove 12 are formed in a shape that circulates the first connector portion 10 around the axis by 360 °, when the second connector portion 20 is connected to the first connector portion 10, the engagement surface 14c and the locking groove 12 are engaged. The position of the stop portion 26 does not need to worry about the orientation of the second connector portion 20 in the direction around the axis. Therefore, the second connector part 20 can be easily connected to the first connector part 10. In the technique of Patent Document 1, it is necessary to set the rotation angle of the male connector with respect to the female connector to a specific rotation angle when connecting and disconnecting.

  Since the locking surface 14c and the locking groove 12 are formed in a shape that circulates the first connector portion 10 around the axis by 360 °, in the state where the second connector portion 20 is connected to the first connector portion 10, The 2nd connector part 20 and the 1st connector part 10 can rotate freely around an axis mutually. Therefore, for example, when the medical connector 100 is applied to the medical suction collector 150 as described above, when the position of the patient with respect to the main body 150a changes, along with the movement of the position of the patient, Since the 2nd connector part 20 can rotate easily with respect to the 1st connector part 10, generation | occurrence | production of malfunctions, such as a twist of the liquid collection pipe | tube 155, can be suppressed.

  Moreover, in this embodiment, the medical connector 100 has a slight amount of the first connector portion 10, the second connector portion 20, and the release operation portion 30 (the lock return portion 33 is integrated with the release operation portion 30). It is composed of three parts (four parts when the O-ring 29 is combined). That is, the medical connector 100 having a small number of parts can be realized.

  The locking surface 14 c and the locking groove 12 are formed on the outer peripheral surface of the first connector portion 10, and the locking portion 26 is formed from the outer peripheral side of the first connector portion 10. 12 is locked. Therefore, in a state where the second connector portion 20 is connected to the first connector portion 10, the locking portions of the claw-shaped portion 26b, the locking surface 14c, and the locking groove 12 are exposed to the outside. . Therefore, whether or not the claw-like portion 26b is locked to the locking surface 14c and the locking groove 12 can be easily determined by visual recognition from the outside of the medical connector 100.

<Modification 1>
FIG. 7 is a front cross-sectional view of the medical connector 200 according to the first modification, in which FIG. 7 (a) shows a separated state and FIG. 7 (b) shows a connected state.

  The medical connector 200 has the above-described implementation in that the first connector part 10 is a male connector and the second connector part 20 is a female connector (male and female are opposite to the above embodiment). It is different from the medical connector 100 according to the embodiment, and the other points are configured in the same manner as the medical connector 100.

  As shown in FIG. 7, the first connector portion 10 has an insertion portion 201 that is inserted into the first insertion portion 22 of the second connector portion 20 in the connected state. A cylindrical slit portion 202 into which the first insertion portion 22 is inserted in the connected state is formed around the insertion portion 201 in the first connector portion 10.

  Instead of the O-ring fixing groove 22 a being formed in the first insertion portion 22, an O-ring fixing groove 201 a is formed on the outer peripheral surface of the insertion portion 201. The O-ring 29 is fixed around the insertion portion 201 by fitting the O-ring 29 into the O-ring fixing groove 201a.

  Also in the first modification, the first connector unit 10 and the second connector unit 20 are connected to each other and the second connector unit 20 is removed from the first connector unit 10 by the same operation as in the above embodiment. be able to.

<Modification 2>
8A and 8B are views showing the shape of the arm portion 26a of the medical connector according to the modified example 2, in which FIG. 8A is a front view, and FIG. 8B is a cross-sectional view taken along line II in FIG. 8A. FIG.

  In the second modification, in order to reduce the sliding resistance between the release portion 32 and the arm portion 26a, a rib 51 is formed on the inner surface of the arm portion 26a. The rib 51 extends in the axial direction of the second connector portion 20. The arm portion 26 a contacts the release portion 32 on the top surface of the rib 51. By forming the rib 51, the contact area between the arm part 26a and the release part 32 is reduced, and the sliding resistance between the release part 32 and the arm part 26a is reduced.

In addition, although illustration is abbreviate | omitted, you may form the rib similar to the rib 51 on the surface at the side of the arm part 26a in the cancellation | release part 32 instead of the rib 51. FIG.
Further, in the release portion 32, a rib similar to the rib 51 is formed on the surface facing the first connector portion 10 side in the connected state (the back surface with respect to the surface on the arm portion 26a side), and the release portion 32 and the first connector portion 10 are formed. The sliding resistance may be reduced.

<Modification 3>
FIG. 9 is a view showing the release restricting member 60 of the medical connector according to Modification 3. Of these, FIG. 9 (a) is a view of the release restricting member 60 from one side, and FIG. 9 (b) is FIG. It is the figure which looked at the release control member 60 from the arrow F direction of a).

  A medical connector according to Modification 3 includes the medical connector 100 according to the above-described embodiment and a release restricting member 60.

  As shown in FIG. 2, when the medical connector 100 in the connected state is viewed from the front, there are gaps 65 between the second insertion portion 25 and the pair of release portions 32, respectively. The connector 100 is penetrated from the near side to the far side.

  As shown in FIG. 9, the release restricting member 60 is a gate-shaped member such as a U-shape, and has a pair of insertion portions 61 and a connection portion 62 that connects the insertion portions 61 to each other. doing. The thickness d (FIG. 9B) of the release restricting member 60 is set to be equal to or slightly smaller than the interval between the operation portion 31 and the second hook-like portion 24 in the connected state.

  By inserting the pair of insertion portions 61 into the pair of gaps 65, the release operation portion 30 is restricted from moving in the first direction relative to the second connector portion 20. Therefore, the connection reliability between the first connector part 10 and the second connector part 20 can be further enhanced.

  A hook portion 63 may be formed at the distal end portion of each insertion portion 61. Thereby, possibility that each insertion part 61 will fall out from a pair of clearance gap 65 can be reduced. In this case, for example, each insertion part 61 can be easily pulled out from the pair of gaps 65 by pinching and pressing the pair of insertion parts 61 with two fingers so that the pair of insertion parts 61 approach each other. it can.

  As shown in FIG. 4, when the connected medical connector 100 is viewed from the side, there are gaps 66 between the second insertion portion 25 and the pair of locking return portions 33, respectively. The gap 66 penetrates the medical connector 100 from the near side to the far side. Therefore, even when the pair of insertion portions 61 are respectively inserted into the pair of gaps 66, the release operation portion 30 is restricted from moving in the first direction relative to the second connector portion 20, The connection reliability between the first connector part 10 and the second connector part 20 can be improved.

  Moreover, in the above, although the example with two latching | locking parts 26 was demonstrated, the latching | locking part 26 may be one and three or more may be sufficient.

  In the above description, the example has been described in which the locking return portion 33 is an elastic piece provided integrally with the release operation portion 30. However, the locking return portion 33 may be other. For example, the locking return portion 33 is a coil spring that is disposed between the second hook-like portion 24 and the operation portion 31 and biases the second hook-like portion 24 and the operation portion 31 away from each other. Also good.

  In the above description, the first locking portion has the locking surface 14c and the locking groove 12. However, the first locking portion has a locking surface 14c (that is, a step facing the first direction side). Surface) only.

  In the above description, the medical suction liquid collector 150, which is a type of medical reservoir that stores liquid collected from the patient's body, has been described. However, the medical reservoir is sent to the patient's body. A medical liquid feeder that stores liquid may be used.

  Each component in each of the above embodiments does not necessarily have to be an independent entity. A plurality of components may be formed as a single member, one component may be formed of a plurality of members, or a certain component may be a part of another component. A part of a certain component and a part of another component may overlap.

DESCRIPTION OF SYMBOLS 10 1st connector part 11 1st connector main body 12 Locking groove (1st locking part)
14 1st hook-shaped part 14a Taper-shaped part 14b Top part 14c Locking surface (1st locking part)
15 hook-shaped portion 16 one end 17 other end 20 second connector portion 21 second connector body 22 first insertion portion 22a O-ring fixing groove 23 tube fixing portion 23a tube fixing hook portion 24 second hook-shaped portion 24a guide hole 24b engagement Groove 25 Second insertion portion 26 Locking portion (second locking portion)
26a Arm part 26b Claw-shaped part 27 One end 28 Other end 29 O-ring 30 Release operation part 31 Operation part 31a Insertion hole 32 Release part 33 Locking return part 33a Inclined surface 34 Drop-off restriction hook 51 Rib 60 Release restriction member 61 Insertion part 62 Connecting part 63 Hook part 65 Gap 66 Gap 100 Medical connector 150 Medical suction liquid collector (medical liquid collector)
150a Body 151 Storage unit 152 Water trap unit 153 Suction pressure adjusting unit 155 Liquid collecting tube 158 Drainage port 157 Suction tube 159 Plug 160 Plug 170 Handle 180 Hanging hook 200 Medical connector 201 Insertion unit 201a O-ring fixing groove 202 Slit part

Claims (20)

A tubular first connector portion having a first locking portion formed on the outer peripheral surface;
A tubular second connector portion having a second locking portion locked to the first locking portion;
Have
By moving the second connector portion in the first direction toward the first connector portion, the second locking portion is locked to the first locking portion, and the second connector portion and the first connector 1 is a medical connector connected with a connector part in a state of communicating with each other,
A release operation part held by the second connector part in a state of being movable relative to the second connector part in the first direction and a second direction opposite to the first direction. In addition,
The release operation part is
An operation unit that receives a manual operation for pushing the release operation unit in the first direction relative to the second connector unit;
The second locking portion is engaged with the first locking portion by being provided integrally with the operating portion and moving in the first direction relative to the second connector portion together with the operating portion. A release part for releasing the stop state,
Have
The second connector performs a first operation to release the locked state by the manual operation and presses the operating portion in the first direction so that the locked state is released. A medical connector in which the second connector part is detached from the first connector part by performing a second operation of moving the part in the second direction relative to the first connector part.   After releasing the locked state by the first operation and before performing the second operation, when the pressing of the operation unit in the first direction is stopped, the release operation unit is set to the second connector. The medical device according to claim 1, further comprising a locking return portion that moves in the second direction relative to the portion to return the second locking portion to a locking state with respect to the first locking portion. Connector. The release portion is inserted between the first connector portion and the second locking portion when the release operation portion is moved in the first direction relative to the second connector portion. Yes,
The said release part is elastically deformed in the direction which the said 2nd latching | locking part remove | deviates from the said 1st latching | locking part, when it interrupts between the said 1st connector part and the said 2nd latching | locking part. The medical connector as described. The first connector portion is
A tubular first connector body;
A first hook-like portion bulging in a radial direction from the first connector body in a portion of the first connector body in the axial direction;
Have
The end surface on the first direction side of the first hook-shaped portion is a locking surface facing the first direction,
The first locking portion includes the locking surface,
The second connector portion and the first connector portion are connected to each other by the second locking portion being locked to the locking surface. Medical connector. The outer peripheral surface of the first hook-shaped portion includes a first inclined surface that is inclined so as to gradually move away from the axis of the first connector body in the first direction,
By moving the second connector portion in the first direction relative to the first connector portion, the second locking portion is elastically deformed in the radial direction of the first connector body while the second connector portion is elastically deformed. The medical connector according to claim 4, which climbs over one inclined surface and is locked to the locking surface. The release portion is inserted between the first hook-like portion and the second locking portion when the release operation portion is moved in the first direction relative to the second connector portion. And
The said cancellation | release part interrupts between the said 1st hook-shaped part and the said 2nd latching | locking part, and the said 2nd latching | locking part elastically deforms in the direction removed from the said 1st latching | locking part. The medical connector as described in. The second connector portion has a tubular second connector body,
The second locking portion is
An arm portion extending in the axial direction of the second connector body around the second connector body and elastically deformable in the radial direction of the second connector body;
A claw-like portion that protrudes inward from an end portion on the first direction side of the arm portion and is locked to the first locking portion;
The medical connector according to any one of claims 1 to 6. The release portion is configured to interrupt between the first connector portion and the arm portion by moving the release operation portion in the first direction relative to the second connector portion,
8. The arm portion according to claim 7, wherein the arm portion is elastically deformed in a direction in which the claw-like portion is disengaged from the first locking portion when the release portion cuts between the first connector portion and the arm portion. Medical connector. The second connector part has a second hook-like part that bulges in a radial direction from the second connector body in a part in the axial direction of the second connector body,
The medical connector according to claim 7 or 8, wherein the arm portion protrudes from the second hook-shaped portion in the first direction.   The locking return portion elastically urges the release operation portion relative to the second connector portion in the second direction, and the urging force causes the release operation portion to be moved to the second direction. The medical connector according to claim 2, wherein the medical connector is moved in the second direction relative to the connector portion. The locking return part is provided integrally with the release operation part,
The locking return portion is pushed by the second connector portion when the release operation portion moves in the first direction relative to the second connector portion, and the radial direction of the second connector portion 11. The elastic piece that elastically deforms outward, and the release operation portion is biased relative to the second connector portion in the second direction by an elastic return force of the elastic piece. The medical connector as described. The locking return part is provided integrally with the release operation part,
The said latching return part has a drop-off control hook which controls that the said release operation part falls out of the said 2nd direction from the said 2nd connector part. Medical connector. The second connector portion is
A tubular second connector body;
A second hook-like portion bulging in a radial direction from the second connector main body in a portion of the second connector main body in the axial direction;
Have
The operation part is disposed on the second direction side with respect to the second bowl-shaped part,
The release portion protrudes from the operation portion in the first direction and penetrates the second hook-shaped portion from the second direction side to the first direction side,
2. The release portion is guided by the second hook-shaped portion when the release operation portion moves in the first direction and the second direction relative to the second connector portion. The medical connector according to any one of 9. The second connector portion has a tubular second connector body,
The second locking portion is
An arm portion extending in the axial direction of the second connector body around the second connector body and elastically deformable in the radial direction of the second connector body;
A claw-like portion that protrudes inward from an end portion on the first direction side of the arm portion and is locked to the first locking portion;
Have
The second connector part has a second hook-like part that bulges in a radial direction from the second connector body in a part in the axial direction of the second connector body,
The arm portion protrudes from the second hook-shaped portion in the first direction,
The locking return portion is engaged with the second hook-shaped portion,
The locking return part remains in a state of being engaged with the second hook-like part, and is elastically deformed outwardly in the radial direction of the second connector part by being pushed by the second hook-like part, The medical connector according to claim 4 or 5, wherein an elastic return operation to the axial center side of the second connector portion is performed. The first locking portion includes a locking surface facing the first direction,
The second connector portion and the first connector portion are connected to each other by the second locking portion being locked to the locking surface,
The locking surface is formed in a shape that circulates 360 ° around the axis of the first connector part,
15. The second connector portion is rotatable about an axis by 360 ° relative to the first connector portion in a state where the second locking portion is locked to the locking surface. The medical connector according to any one of the above.   When the rotation angle of the second connector portion around the axis of the second connector portion is an arbitrary angle of 360 °, the second connector portion is moved in the first direction toward the first connector portion. 16. The method according to claim 1, wherein the second locking portion is locked to the first locking portion, and the second connector portion and the first connector portion are connected in a state of communicating with each other. A medical connector according to claim 1.   17. The locking portion between the first locking portion and the second locking portion is exposed to the outside in a state where the first connector portion and the second connector portion are connected to each other. The medical connector according to any one of the above.   One of the first connector portion and the second connector portion is a male connector, and the other is a female connector, and the second connector portion and the first connector portion are connected to each other. The medical connector according to any one of claims 1 to 17, wherein one end of the male connector is in a state where the male connector enters a tube of the female connector.   The medical connector according to claim 18, wherein the first connector portion is the female connector, and the second connector portion is the male connector. A main body including a reservoir for storing liquid;
A liquid supply pipe having one end connected to the main body,
A medical connector for connecting the main body and the liquid feeding tube to each other so that the reservoir and the liquid feeding tube communicate with each other;
Have
The medical connector is
A tubular first connector part having a first locking part formed on the outer peripheral surface, the first connector part being fixed to the main body part;
A tubular second connector portion having a second locking portion locked to the first locking portion;
Have
By moving the second connector portion in the first direction toward the first connector portion, the second locking portion is locked to the first locking portion, and the second connector portion and the first connector 1 Connected with the connector part in communication with each other,
The medical connector further includes:
A release operation part held by the second connector part in a state of being movable relative to the second connector part in the first direction and a second direction opposite to the first direction. Have
The release operation part is
An operation unit that receives a manual operation for pushing the release operation unit in the first direction relative to the second connector unit;
The second locking portion is engaged with the first locking portion by being provided integrally with the operating portion and moving in the first direction relative to the second connector portion together with the operating portion. A release part for releasing the stop state,
Have
The second connector performs a first operation to release the locked state by the manual operation and presses the operating portion in the first direction so that the locked state is released. A medical reservoir in which the second connector part is detached from the first connector part by performing a second operation of moving the part in the second direction relative to the first connector part.

Images