Tube joining device

Patent metadata

Field	Value
Publication number	US-10864685-B2
Application number	US-201816496389-A
Country	US
Kind code	B2
Filing date	Mar 23, 2018
Priority date	Mar 24, 2017
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

Provided is a tube joining device that allows a user to easily and appropriately perform setting of tubes which become a joining target, and is capable of preventing occurrence of a joining failure caused by a setting error of the tubes in advance. A tube joining device 1 includes: a first tube holding portion 41 that is capable of holding a first tube T1; a second tube holding portion 42 that is disposed in adjacent to the first tube holding portion, and is capable of holding a second tube T2 at a position that is parallel to the first tube; and a housing 2 that is provided with a cover member 20 that is closed to cover fusion-joining sites C of the first tube and the second tube. The cover member is slidable along a direction in which the first tube and the second tube are disposed in parallel.

First claim

The invention claimed is:

1. A tube joining device that fuses a first tube and a second tube using a plate-shaped cutting member that is heated, and superimposes a fusible end of the first tube on a fusible end of the second tube and joins the fusible ends in an aseptic condition, the tube joining device comprising:
a plate-shaped cutting member;
means for heating said cutting member;
a first tube holding portion that is capable of holding a first tube;
a second tube holding portion that is disposed adjacent to the first tube holding portion, and is capable of holding a second tube parallel to the first tube in a tube extension direction; and
a housing that is provided with a cover member that is closed to cover a fusing-joining site of the first tube and a fusion-joining site of the second tube,

wherein the cover member is slidable along a sliding direction perpendicular to the tube extension direction and further includes a first pressing member and a second pressing member which are configured to approach each other or to separate from each other along the sliding direction, and to maintain the first tube and the second tube in a pressed state,
the first tube holding portion and the second tube holding portion are disposed between the first pressing member and the second pressing member, and
the housing includes a first link mechanism that causes the first tube holding portion and the second tube holding portion to approach the first pressing member or to separate therefrom in synchronization with the approach or separation of the first pressing member and the second pressing member.

2. The tube joining device according to claim 1 , wherein when the first pressing member and the second pressing member move, the first link mechanism maintains the first tube holding portion and the second tube holding portion at a center position between the first pressing member and the second pressing member.

3. The tube joining device according to claim 2 ,
wherein the first tube holding portion and the second tube holding portion include a partition portion that is disposed between the fusing-joining site of the first tube and the fusing-joining site of the second tube, and
the housing includes a retraction link mechanism that retracts the partition portion from a space between the first pressing member and the second pressing member in synchronization with the approach of the first pressing member and the second pressing member.

4. The tube joining device according to claim 3 ,
wherein the housing includes an operation panel unit including switches, and
the operation panel unit is disposed on a front surface portion of the housing which is located in a direction that intersects the sliding direction of the cover member.

5. The tube joining device according to claim 2 ,
wherein the first tube holding portion and the second tube holding portion include a joining site holding portion that holds the fusing-joining site of the first tube and the fusion-joining site of the second tube, and
the housing includes a second link mechanism that retracts the joining site holding portion from a space between the first pressing member and the second pressing member in synchronization with the approach of the first pressing member and the second pressing member.

6. The tube joining device according to claim 5 ,
wherein the housing includes an operation panel unit including switches, and
the operation panel unit is disposed on a front surface portion of the housing which is located in a direction that intersects the sliding direction of the cover member.

7. The tube joining device according to claim 5 ,
wherein the first tube holding portion and the second tube holding portion include a partition portion that is disposed between the fusing-joining site of the first tube and the fusing-joining site of the second tube side, and
the housing includes a retraction link mechanism that retracts the partition portion from the space between the first pressing member and the second pressing member in synchronization with the approach of the first pressing member and the second pressing member.

8. The tube joining device according to claim 7 ,
wherein the housing includes an operation panel unit including switches, and
the operation panel unit is disposed on a front surface portion of the housing which is located in a direction that intersects the sliding direction of the cover member.

9. The tube joining device according to claim 1 ,
wherein the housing includes an operation panel unit including switches, and
the operation panel unit is disposed on a front surface portion of the housing which is located in a direction that intersects the sliding direction of the cover member.

10. The tube joining device according to claim 1 ,
wherein the first tube holding portion and the second tube holding portion include a joining site holding portion that holds the fusing-joining site of the first tube and the fusion-joining site of the second tube, and
the housing includes a second link mechanism that retracts the joining site holding portion from a space between the first pressing member and the second pressing member in synchronization with the approach of the first pressing member and the second pressing member.

11. The tube joining device according to claim 10 ,
wherein the first tube holding portion and the second tube holding portion include a partition portion that is disposed between the fusing-joining site of the first tube and the fusing-joining site of the second tube, and
the housing includes a retraction link mechanism that retracts the partition portion from the space between the first pressing member and the second pressing member in synchronization with the approach of the first pressing member and the second pressing member.

12. The tube joining device according to claim 11 ,
wherein the housing includes an operation panel unit including switches, and
the operation panel unit is disposed on a front surface portion of the housing which is located in a direction that intersects the sliding direction of the cover member.

13. The tube joining device according to claim 1 ,
wherein the first tube holding portion and the second tube holding portion include a partition portion that is disposed between the fusing-joining site of the first tube and the fusing-joining site of the second tube, and
the housing includes a retraction link mechanism that retracts the partition portion from a space between the first pressing member and the second pressing member in synchronization with the approach or separation of the first pressing member and the second pressing member.

14. The tube joining device according to claim 13 ,
wherein the housing includes an operation panel unit including switches, and
the operation panel unit is disposed on a front surface portion of the housing which is located in a direction that intersects the sliding direction of the cover member.

Assignees

• Terumo Corp

Inventors

• Kanemaru Keisuke

Classifications

• B29C66/7373

  Joining soiled or oxidised materials · CPC title

• B29C66/9672

  involving special data inputs, e.g. involving barcodes, RFID tags · CPC title

• B29C66/5221

  for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other · CPC title

• A61M39/146

  by cutting and welding · CPC title

• B29C65/2046 Primary

  using a welding mirror which also cuts the parts to be joined, e.g. for sterile welding · CPC title