JPH0675922B2 - Multi-point tube seal device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a multi-point type tube sealing device for sealing a tube at a plurality of points, for example, a multi-point type for sealing a tube connected to a blood bag at a plurality of points. The present invention relates to a tube seal device.

[Prior Art] Conventionally, a multi-point type tube seal device for sealing a tube connected to a blood bag at a plurality of points is known, and is widely used to seal the tube at an arbitrary number of points. Here, in the conventional multi-point type tube seal device, four seal heads are arranged in a fixed state, and when sealing the tube at four points, all these seal heads are used. In the case of point sealing, the other three sealing heads are used while the sealing function of one sealing head is stopped.

[Problems to be Solved by the Invention] However, in the above-described conventional multi-point tube seal device, for example, when the tube is sealed at three points, an unused seal head interferes with the operation,
It has been pointed out that the workability of the sealing work deteriorates.

In addition, this seal interval differs depending on the manufacturer that manufactures the blood bag. That is, an ID number is engraved on the blood bag tube at a predetermined interval set for each manufacturer. Then, when the tubes are sealed at a plurality of points to create a tube segment for inspection, 1
At least one ID number must exist for each tube segment. If an ID number does not exist in a certain tube segment, the blood bag enclosed in this tube segment cannot be compared with the test result.

For this reason, the seal interval must be accurately set according to the specifications of each blood bag manufacturer, but in the conventional tube seal device, the position of each seal head cannot be changed, so it is commonly used for blood bags of each manufacturer. It has been pointed out that there is a problem in that it cannot be applied in a state, and that each manufacturer must provide a tube seal device.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to improve the workability of the seal of the tube and to set various seal intervals with one unit. It is to provide a sealing device.

[Means for Solving the Problems] In order to solve the above problems and achieve the object, a multi-point type tube sealing device according to the first aspect of the present invention is a multi-point type tube sealing device for sealing a tube at a plurality of points. The present invention is characterized by comprising a main body and a plurality of seal heads, which are arranged in the main body so as to be respectively retractable from the sealing position and seal the tube.

A multi-point type tube sealing device according to a second aspect of the present invention is a multi-point type tube sealing device that seals a tube at a plurality of points, and a plurality of units are provided on the main body so as to be movable in the axial direction of the tube. And a sealing head for sealing the tube.

A multi-point type tube seal device according to a third aspect of the present invention is a multi-point type tube seal device that seals a tube at a plurality of points, and the main body and the main body can be retracted from their respective sealing positions, and the tube A plurality of axially movable units are provided, and a sealing head for sealing the tube is provided.

[Operation] In the multi-point tube seal device configured as described above, for example, when there is an unnecessary seal head, the unnecessary seal head is pulled into the main body so that it does not exist outside the main body. This unnecessary sealing head is surely prevented from interfering with the sealing work.

Also, since each seal head can move laterally along the body, each seal head will be moved to the proper position to achieve the desired seal spacing.

[Embodiment] The construction of the first embodiment of the multipoint tube seal device according to the present invention will be described in detail below with reference to FIGS. 1 to 5 of the accompanying drawings.

As shown in FIG. 1, the multi-point tube seal device 10 of the first embodiment is configured as a 4-point type capable of sealing the tubes connected to the blood bag at a maximum of 4 points, and as a main body. It has a housing 12. This housing
The front surface of 12 is open, and the front opening is closed by a cover member 14 so as to be openable. At a predetermined position of the cover member 14, four seal heads, which will be described later, are retractably inserted and extend laterally (in a direction indicated by a symbol Y in FIG. 2) at a lateral position. An opening 14a is formed to allow the movement to.

Inside the housing 12, four sealing units 16, 18, 20, 22 each having a function of sealing a tube filled with blood are connected to a blood bag (not shown). These seal units 16,18,20,22
Indicates the front-back direction (the direction indicated by the symbol X in FIG. 1).
It is equipped with unit bases 16a, 18a, 20a, 22a extending along with, and at the front and rear ends of these unit bases 16a, 18a, 20a, 22a, extending along the left-right direction indicated by arrow Y. In the state, the guide holes 16b, 16c; 18b, 18c; 20b, 20c; 22b, in which the pair of guide shafts 24a, 24b are slidably inserted, respectively.
22c are formed respectively.

Here, these guide shafts 24a and 24b are attached to the housing 1
In the state of extending in 2 along the left-right direction indicated by arrow Y,
It is suspended in a fixed state. With this configuration, each seal unit 16, 18, 20, 22 is attached to the housing 12
It is slidably supported in the horizontal direction Y inside.

On the other hand, the unit bases 16a, 18a, 20a, 22a of the seal units 16, 18, 20, 22 are formed from a threaded rod at the central portion in the front-rear direction in a state of extending along the left-right direction indicated by the arrow Y. Screw holes 16d, 18d, 20d, which are screwed into the drive shaft 26
22d are formed respectively. And this drive shaft 2
6 is rotatably bridged in a state of extending inside the housing 12 along the left-right direction indicated by the arrow Y, and one end thereof is taken out of the housing 12 as shown in FIG. A handle 28 for rotationally driving the drive shaft 26 is attached to one end of the drive shaft 26 taken out of the housing 12.

Here, in the screw portion formed on the drive shaft 26, a portion 26a screwed with the seal unit 16 located at the left end in FIG. 2 and a portion 26b screwed with the seal unit 18 located second from the left. Is set so as to be formed from a right-hand thread, while the portion 26d that is screwed into the seal unit 22 located at the right end and the portion 26c that is screwed into the seal unit 20 located second from the right are It is set to be formed from the opposite left hand thread. Each screw hole 16
The d, 18d, 20d and 22d are formed so as to have screw grooves that can be respectively screwed, corresponding to the corresponding screw portions 26a, 26b, 26c and 26d. Further, in these screw portions 26a, 26b, 26c, 26d, these screw pitches are set to be 3: 1: 1: 3.

With this configuration, each seal unit 16,18,20,22
Is to move the handle 28 in the left-right direction Y in the housing 12 by appropriately rotating the handle 28 in a predetermined direction under different combinations of moving amounts and moving directions. As a result, each seal unit is moved. The gap between 16, 18, 20, 22 adjacent to each other will be changed appropriately.

Next, the structure of each seal unit 16, 18, 20, 22 will be described. Since these seal units 16, 18, 20, 22 have the same structure, the structure of the seal unit 16 located at the left end in FIG. 12 will be described as a representative and the other seal units will be described.
Similar symbols are attached to 18,20,22 and the description thereof is omitted.

As shown in FIG. 1, the seal unit 16 includes a slide base 16e slidably supported on the unit base 16a along the front-rear direction X. On the lower surface of the slide base 16e, a pair of slide shafts 16f, 16g extending along the front-rear direction X are separated from each other by a predetermined distance in the lateral direction. Is attached through. on the other hand,
On the unit base 16a, each slide shaft 16f, 16g
The slide support portion 16j, through which the
16k are formed integrally in a state of being separated from each other in the front and rear.
As described above, since the slide shafts 16f and 16g are slidably supported by the slide support portions 16j and 16k, the slide base 16e of the slide unit 16 as a whole slides along the front-rear direction X as described above. It is set freely.

On the other hand, in each slide shaft 16f, 16g, a coil spring 30 is loosely fitted in a portion located between the slide support parts 16j, 16k, and the front end of the coil spring 30 is integrally formed with the slide shaft shaft 16f, 16g. It is hooked on a stopper member 32 composed of an E ring attached to the rear end, and the rear end thereof is hooked on the front end face of the slide support portion 16k positioned rearward. In this way, the slide base 16e is always biased by the coil spring 30 so as to be biased forward. Further, the seal head 16l for actually sealing the tube is mounted on the slide base 16e. It is placed. The Shiruhetsudo 16l includes a head body portion 16l ₁ housed in the housing 12, is formed so as to protrude from the head body portion 16l ₁ forward, functional part seal groove 16l ₂ is formed Chiyubu is fitted 16l ₃ and the functional portion 16l ₃ is set to a size large enough to be inserted through the opening 14a described above.

Here, with the slide base 16e biased forward by the coil spring 30 in this way, the seal head 16e
The functional part 16l _{3 of} l is biased to the state of protruding forward from the front surface of the housing 12 through the opening 14a.
Then, the seal operation position is defined at the position projecting forward as described above.

Also, at the rear of the slide base 16e, the unit base 1
A hook locking mechanism 16n configured to be disengageable is fixed to a locking hook 16m formed at the rear end of 6a. The structure of the locking hook 16m and the hook locking mechanism 16n will be described later, but the seal head 16l moves from the seal operating position to the housing 1.
The locking hook 16m is configured to engage with the hook locking mechanism 16n in the state of being pulled into the inside 2 and to be locked at the retracted position as shown in FIG. Further, the hook locking mechanism 16n is configured such that the locked state is released by further pushing the seal head 16l in the locked state once, and the seal locking mechanism 16n is pushed out to the seal operating position by the biasing force of the coil spring 30 described above. Has been done.

With the seal head 16l locked in the retracted position, the front portion of the seal head 16l is substantially
It is housed in the opening 14a or slightly protrudes from the opening 14a so as not to interfere with the sealing work by the other sealing units 18, 20, 22.

Incidentally, Shiruhetsudo 16l described above are well-known configuration including a seal groove 16l _2, its detailed description is omitted, portions of the seal groove 16l Chiyubu inserted into the ₂ is sealed here by high-frequency Is configured.

The locking hook 16m described above is constructed as shown in FIG. 4, while the hook locking mechanism 16n is constructed as shown in FIG. That is, this hook locking mechanism 16n
When the locking hook 16m is pushed into this, the locking hook 16m is locked first, and then when the locking hook 16m is pushed in, the locking state of the locking hook 16m is released. Is configured to.

The sealing operation of the tube connected to the blood bag in the multipoint tube seal device 10 configured as described above will be described.

First, if you want to seal this tube at 4 points,
All seal heads 16l, 18l, 20l, 22l as shown
The brought to sealing operating position drawn out forward through the opening 14a, these Shiruhetsudo 16l, 18l, 20l, seal groove 16l ₂ of s husband 22l, to 18l _2, 20l _2, 22l _2, fitting the Chiyubu. Then, by appropriately rotating the handle 28, a plurality of ID numbers engraved on the tube are set so that the desired seal intervals are located between the seal heads 16l; 18l, 18l; 20l, 20l; 22l adjacent to each other. In the state, a start switch (not shown) is pushed. Based on the pushing operation of the start switch, the sealing function portion _{16l 3, 18l 3, 20l 3} , 22l 3 is started,
Seal groove 16l _2, 18l _2, 20l _2, part of the fitting has been Chiyubu to 22l in ₂ will be respectively sealed.

On the other hand, if you want to seal the tube with 3 points, select the appropriate 1
Two sealing heads, for example, the leftmost sealing head 16l in FIG. 2 is pushed in, and the locking hook 16m is locked by the hook locking mechanism 16n to hold it in the retracted position. In this way, the sealing heads projecting to the front side of the cover member 14 are set to be only the three sealing heads 18l, 20l, 22l. And these seal heads
18l, 20l, seal groove 18l ₂ of s husband 22l, to 20l _2, 22l _2, fitting the Chiyubu. Then, the handle 28 is appropriately rotated, and a plurality of ID numbers engraved on the tube are shown in a state in which a desired seal interval is set so that the plurality of ID numbers are positioned between the seal heads 18l; 20l, 20l; 22l adjacent to each other. Do not press the start switch. Based on the pushing operation of the start switch, the sealing function portion 18l _3, 20l _3, 22l ₃ is started, the sealing groove 18l _2, 20l _2, fitted portions of Chiyubu to 22l in ₂ is respectively sealed It will be.

In the sealing operation at these three points, the unused sealing head 16l is locked in the retracted position and is housed in the housing 12. As a result,
The sealing head 16l not used for this sealing operation is 3
There is no obstruction to the point sealing operation, and this sealing operation is performed extremely smoothly.

The same applies to the case where the tube is sealed at two points.

As described in detail above, according to the tube sealing device 10 of the first embodiment, the sealing head which is not used for the sealing work is 4 points, 3 points, 2 points and 1 point regardless of the sealing points. Since it is housed in the housing 12 in advance, the unused sealing head does not interfere with the sealing work, and the sealing work can be performed extremely smoothly.

In addition, in this first embodiment, each sealing head 16
All of l, 18l, 20l, and 22l are attached so as to be movable along the left-right direction Y so that their intervals can be varied. As a result, the seal interval of the tubes can be changed arbitrarily, and these can be changed to 1 in correspondence with many types of tubes.
It becomes possible to seal with the seal device of the table.

It goes without saying that the present invention is not limited to the configuration of the first embodiment described above, and can be variously modified without departing from the scope of the present invention.

For example, in the above-described first embodiment, each unit base 16a, 18a, 20a, 22a has a pair of guide shafts 24a, 2a.
Although it has been described that it is slidably supported along the left-right direction Y via the 4b, the present invention is not limited to such a configuration, and as a second embodiment shown in FIGS. 6 and 7. It may be configured as shown. In the following description, the same parts as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

That is, in the second embodiment, instead of the pair of guide shafts 24a and 24b, the guide shafts extending in the left-right direction Y are provided.
The guide plates 34 are arranged in a fixed state. A guide hole 36 is formed in the guide plate 34 so as to extend along the left-right direction Y. On the other hand, in each of the seal units 16, 18, 20, 22, the guide members 16p, 18p, 20p, 22p are integrally attached so as to penetrate the guide hole 36 in a state of protruding downward.

The guide members 16p, 18p, 20p, 22p are threaded at the tips (lower ends), and the threaded portion is
Bolts 16r, 18r, 20r and 22r are respectively screwed through q, 18q, 20q and 22q. Here, the diameter of each washer 16q, 18q, 20q, 22q is set larger than the width of the guide hole 36.

By constructing the second embodiment in this way, each seal unit 16, 18, 20, 22 is slidably supported along the left-right direction Y, which is the same as the first embodiment described above. The same effect can be achieved.

In addition, in the above-described first embodiment, each unit base 16a, 18a, 20a, 22a has a pair of slide shafts 16f; 1.
Although it has been described that it is slidably supported along the front-rear direction X via 6g: 18f; 18g: 20f; 20g: 22f; 22g, the present invention is not limited to such a configuration, It may be configured as shown as a third embodiment in FIGS.

That is, in this third embodiment, each slide unit 16,18,20,22 has a pair of slide shafts 16f; 16g: 18.
Instead of f; 18g: 20f; 20g: 22f; 22g, one guide rail 16s, 18s, 20s, 22s extending along the front-rear direction X is fixed to the bottom surface of the slide base 16e, 18e, 20e, 22e. I prepare for it. Each of the guide rails 16s, 18s, 20s, 22s has a guide groove 16t, 1 preformed in the unit base 16a, 18a, 20a, 22a.
It is fitted in 8t, 20t, 22t, and supported so as to be slidable in the front-rear direction along the inside.

By constructing the third embodiment in this way, each seal unit 16, 18, 20, 22 is slidably supported along the front-rear direction Z, which is the same as the first embodiment described above. The same effect can be achieved.

[Effects of the Invention] As described in detail above, the multi-point type tube sealing device according to the present invention is a multi-point type tube sealing device that seals a tube at a plurality of points, and the main body is drawn into the main body from the sealing position. It is characterized in that a plurality of possible arrangements are provided, and a sealing head for sealing the tube is provided.

A multi-point type tube sealing device according to a second aspect of the present invention is a multi-point type tube sealing device that seals a tube at a plurality of points, and a plurality of units are provided on the main body so as to be movable in the axial direction of the tube. And a sealing head for sealing the tube.

A multi-point type tube seal device according to a third aspect of the present invention is a multi-point type tube seal device that seals a tube at a plurality of points, and the main body and the main body can be retracted from their respective sealing positions, and the tube A plurality of axially movable units are provided, and a sealing head for sealing the tube is provided.

Therefore, according to the present invention, it is possible to provide a multi-point type tube seal device which can improve the workability of the seal of the tube and can set various seal intervals with one unit.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a structure of a first embodiment of a multi-point tube seal device according to the present invention in a state in which a seal head is in a seal operating position; FIG. 2 is a multi-point type shown in FIG. FIG. 3 is a front sectional view showing the structure of the tube seal device taken along the line II-II in FIG. 1; FIG. 3 shows the multi-point tube seal device shown in FIG. 1 with the seal head in the retracted position. FIG. 4 shows the structure of the locking hook, (A) is a left side view of the hook, (B) is a right side view, and (C) is a front view.
(D) is a back view, (E) is a plan view, and (F) is a bottom view; FIG. 5 shows the structure of the hook locking mechanism, and (A) is a plan view. (B) is a front view, (C) is a right side view, (D) is a left side view, (E) is a rear view, and (F) is a bottom view; FIG. 6 relates to the present invention. FIG. 7 is a side sectional view showing the construction of the second embodiment of the tube sealing device; FIG. 7 shows the tube sealing device shown in FIG.
FIG. 8 is a side sectional view showing the structure of a third embodiment of the tube seal device according to the present invention; and FIG. 9 is a tube seal shown in FIG. It is a front sectional view showing the device by cutting along the line IX-IX. In the figure, 10 ... multi-point tube seal device, 12 ... housing, 14 ... cover member, 14a ... opening, 16; 18; 20; 22 ...
… Seal unit, 16a; 18a; 20a; 22a …… Unit base, 16b; 16c; 18b; 18c; 20b; 20c; 22b: 22c …… Guide hole, 1
6d; 18d; 20d; 22d …… Screw hole, 16e; 18e; 20e; 22e …… Slide base, 16f; 16g: 18f; 18g: 20f; 20g: 22f; 22g …… Slide shaft, 16h; 16i: 18h; 18i: 20h; 20i: 22h: 22i ...
… Shaft receiving members, 16j; 16k: 18j; 18k: 20j; 20k: 22j; 22
k ...... slide support portion, 16l; 18l; 20l; 22l ...... _{Shiruhetsudo, 16l 1; 18l 1; 20l} 1; 22l 1 ...... head body portion, 16l ₂ 18l
_2; 20l _2; 22l ₂ ...... seal _{groove, 16l 3; 18l 3; 20l} 3; 22l 3 ...... functional part, 16m; 18m; 20m; 22m ...... locking hook, 16n; 18n; 20
n; 22n …… Foot locking mechanism, 24a; 24b …… Guide shaft, 26 …… Drive shaft, 26a; 26b; 26c; 26d …… Screw part, 28 …… Handle, 30 …… Coil spring, 32 ……
Stopper member, 34 ... Guide plate (second embodiment), 36 ...
… Guide hole, 16p; 18p; 20p; 22p …… Guide member, 16q; 18
q; 20q; 22q …… Washashi, 16r; 18r; 20r; 22r …… Bolt,
16s; 18s; 20s; 22s …… Guide rails (third embodiment), 1
6t; 18t; 20t; 22t …… It is a guide groove.

Claims (3)

[Claims] 1. A multi-point type tube sealing device for sealing a tube at a plurality of points, comprising: a main body; and a plurality of sealing heads, which are arranged in the main body so as to be respectively retractable from a sealing position, for sealing the tube. A multi-point type tube seal device that is characterized. 2. A multi-point tube sealing device for sealing a tube at a plurality of points, comprising a main body, and a plurality of sealing heads provided on the main body so as to be movable in the axial direction of the tube, respectively, for sealing the tube. A multi-point tube seal device characterized by being equipped. 3. A multi-point tube seal device for sealing a tube at a plurality of points, a main body, and the main body, each of which is retractable from a sealing position, and
A multi-point type tube seal device comprising a plurality of seal heads arranged to be movable in the axial direction of the tube, and a sealing head for sealing the tube.