WO2010087216A1 - クランプおよび採血器具 - Google Patents
クランプおよび採血器具 Download PDFInfo
- Publication number
- WO2010087216A1 WO2010087216A1 PCT/JP2010/050114 JP2010050114W WO2010087216A1 WO 2010087216 A1 WO2010087216 A1 WO 2010087216A1 JP 2010050114 W JP2010050114 W JP 2010050114W WO 2010087216 A1 WO2010087216 A1 WO 2010087216A1
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- WO
- WIPO (PCT)
- Prior art keywords
- tube
- blood
- clamp
- state
- blood collection
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/221—Frangible or pierceable closures within tubing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
- A61M39/284—Lever clamps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
- A61M39/285—Cam clamps, e.g. roller clamps with eccentric axis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
- A61B10/0051—Devices for taking samples of body liquids for taking saliva or sputum samples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150366—Blood collection bags, e.g. connected to the patient by a catheter comprising means for removing a small sample of collected blood from the bag
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2048—Connecting means
- A61J1/2058—Connecting means having multiple connecting ports
- A61J1/2062—Connecting means having multiple connecting ports with directional valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/221—Frangible or pierceable closures within tubing
- A61M2039/222—Frangible or pierceable closures within tubing frangible within tubing or bags
Definitions
- the present invention relates to a clamp and a blood collection device.
- a blood collection device for collecting blood into a blood bag (blood collection bag) from a blood collection needle through a tube.
- a blood collection device blood collection device described in Patent Document 1 is known.
- the blood collection instrument described in Patent Document 1 includes a blood collection needle, a blood bag (bag set) for storing blood collected through the blood collection needle, and a blood collection tube (first set) connecting the blood collection needle and the blood bag. Tube), a branch tube (second tube) branched from the middle of the blood collection tube, an initial blood bag (test blood bag (sample pouch)) communicating with the blood collection tube via the branch tube, a blood collection tube, It has a three-way stopcock (valve) installed at a branch portion with the branch tube.
- the blood before collecting blood from a donor (donor) into a blood collection bag, that is, before performing this blood collection, the blood may be contaminated by bacteria in the epidermis or epidermis.
- the collected initial blood is collected (stored) in the initial blood bag.
- the collected initial blood is collected in several blood collection tubes and used for various tests.
- the three-way stopcock can take the following three states.
- the first state is a state in which the upstream portion of the blood collection tube and the branch tube are communicated (see FIG. 2A of Patent Document 1).
- the third state is a state where communication between the upstream portion and the downstream portion of the blood collection tube is blocked (see FIG. 2 (c) of Patent Document 1).
- the three-way stopcock is set to the first state, and in this state, the initial blood is collected in the initial blood bag. Then, after collecting the initial blood (primary blood) from the donor into the initial blood bag, the three-way cock (knob) is operated to set the three-way cock to the second state, and the blood is collected in this state. . After the blood collection, the three-way cock is operated to bring the three-way cock to the third state.
- the three-way stopcock enters the second state before that.
- the upstream portion and the downstream portion of the blood collection tube can be in communication with each other. Can not be done.
- An object of the present invention is to reliably prevent the first tube from being opened before the second tube branched from the first tube in the blood collecting device is closed when the blood collecting device is operated. It is to provide a clamp and blood collection device that can.
- the present invention provides: A first tube having a blood collection needle connected to one end and a blood bag connected to the other end; a second tube branched from the middle of the first tube through a branch portion; and the branch of the first tube
- the first state in which the second tube is opened and the breaking operation on the sealing member is prevented; and the breaking operation on the sealing member is performed when the second tube is closed.
- the clamp is characterized in that it can be switched to a second state that is possible.
- the clamp of the present invention has a clamp body and an operation member that rotates with respect to the clamp body,
- the operation member includes a pressing portion that presses and closes the second tube, and a blocking portion that prevents a breaking operation on the sealing member, When the operation member is rotated with respect to the clamp body, it is preferable to switch from the first state to the second state.
- the sealing member installed in the first tube can be broken after the second tube branched from the first tube in the blood collecting device is closed. It becomes. That is, when operating the blood collection instrument, before the second tube is closed, the sealing member is broken and the first tube is opened (opened) from the upstream side to the downstream side. Can be reliably prevented.
- the second tube is closed before the breaking operation is enabled when the first state is switched to the second state.
- the blocking portion covers the portion where the sealing member of the first tube is installed in the first state, and from the covered portion in the second state. It is preferably configured to retract.
- the operation member has a plate shape. It is preferable that the blocking portion is constituted by a protruding portion that protrudes outward from the outer peripheral portion of the operating member.
- the clamp body has a plate-like shape, and a defect portion in which a portion corresponding to the sealing member is missing on the outer peripheral portion is formed.
- the operation member has a plate shape, It is preferable that the blocking portion is constituted by a portion of the outer peripheral portion of the operation member that faces the missing portion in the first state.
- the pressing portion is separated from the clamp main body, and the separation distance has an inclined portion that gradually decreases when the operation member is rotated.
- the operation member can be smoothly rotated.
- the clamp body has a fixing portion for fixing the branch portion.
- the first tube and the second tube are securely fixed. Therefore, when the operation member is turned, the first tube and the second tube are prevented from being unintentionally displaced by the rotational force. It can be surely prevented.
- the operation member has an operation lever on which a finger can be applied when the operation member is rotated.
- the operation lever can be picked with a finger to perform the rotation operation, and the operability is further improved.
- the clamp of the present invention preferably has a restricting means for restricting the rotation range of the operation member.
- the clamp of the present invention has a clamp body, and a blocking portion that is connected to the clamp body and prevents a breaking operation on the sealing member,
- the clamp body includes a clamping part that presses and closes the second tube, and an operation part that operates the clamping part, When the operation unit is operated, it is preferable to switch from the first state to the second state.
- the sealing member installed in the first tube can be broken after the second tube branched from the first tube in the blood collecting device is closed. It becomes. That is, when operating the blood collection instrument, before the second tube is closed, the sealing member is broken and the first tube is opened (opened) from the upstream side to the downstream side. Can be reliably prevented.
- the blocking portion covers the portion where the sealing member of the first tube is installed in the first state, and from the covered portion in the second state. It is preferably configured to retract.
- the blocking portion is constituted by a long hollow member having a hollow portion opened in a direction opposite to the retracting direction.
- the sandwiching portion may be provided so as to face the abutting portion via the abutting portion that abuts a part of the outer peripheral portion of the second tube and the second tube. It is preferable to have a pressing portion that is close to the contact portion and presses the outer peripheral portion of the second tube by the pressing operation.
- the blocking portion is constituted by a long hollow member having a hollow portion, It is preferable that the clamp body and the hollow member are adjacently arranged in parallel.
- the hollow member is rotatably connected to the clamp body.
- the first tube is covered with the hollow member in addition to the portion where the sealing member is installed, so that the rupture operation on the sealing member is more reliably performed in the first state. Be blocked.
- a fixing means for fixing at least one of the first tube and the second tube is provided.
- the present invention provides: A clamp of the present invention; A first tube having one end connected to a blood collection needle and the other end connected to a blood bag; A second tube branched from the middle of the first tube through a branch portion; A sealing member that is installed in a portion closer to the blood bag than the branch portion of the first tube and opens the first tube in a blocked state when it is broken;
- the said clamp is a blood collection instrument characterized by being installed in the said branch part of a said 1st tube.
- FIG. 1 is a schematic view showing a first embodiment of the blood collection device of the present invention.
- FIG. 2 is a longitudinal sectional view showing a configuration example of a sealing member (breaking opening member) included in the blood collection device shown in FIG.
- FIG. 3 is an exploded perspective view of the clamp (first embodiment) of the present invention which the blood collection device shown in FIG. 1 has.
- FIG. 4 is a perspective view of the operation member (second plate member) of the clamp shown in FIG. 3 as viewed from the lower surface side.
- FIG. 7 is a cross-sectional view taken along line BB in FIG.
- FIG. 8 is a plan view showing a second state of the clamp shown in FIG. 9 is a cross-sectional view taken along the line CC in FIG. 10 is a cross-sectional view taken along the line DD in FIG.
- FIG. 11 is a plan view showing a first state of the clamp (second embodiment) of the present invention.
- FIG. 12 is a plan view showing a second state of the clamp (second embodiment) of the present invention.
- FIG. 13: is a longitudinal cross-sectional view which shows the 1st state of the clamp (3rd Embodiment) of this invention.
- FIG. 14 is a longitudinal sectional view showing a second state of the clamp (third embodiment) of the present invention.
- FIG. 15 is a schematic view (plan view) showing a fourth embodiment of the blood collection device of the present invention.
- FIG. 16 is a perspective view of the clamp (fourth embodiment) of the present invention possessed by the blood collection device shown in FIG. 15.
- 17 is a view of the clamp shown in FIG. 16 as viewed from the direction of arrow E (a side view showing the first state of the clamp shown in FIG. 16).
- 18 is a view of the clamp shown in FIG. 16 as viewed from the direction of arrow E (a side view showing a second state of the clamp shown in FIG. 16).
- 19 is a cross-sectional view taken along the line FF in FIG. 20 is a cross-sectional view taken along the line GG in FIG. FIG.
- FIG. 21 is a side view showing a first state of the clamp (fifth embodiment) of the present invention.
- FIG. 22 is a side view showing a second state of the clamp (fifth embodiment) of the present invention.
- FIG. 23 is a cross-sectional view taken along line HH in FIG.
- FIG. 24 is a partial vertical sectional side view showing a first state of the clamp (sixth embodiment) of the present invention.
- FIG. 1 is a schematic view showing a first embodiment of the blood collecting instrument of the present invention
- FIG. 2 is a longitudinal sectional view showing a configuration example of a sealing member (breaking opening member) included in the blood collecting instrument shown in FIG.
- FIG. 4 is an exploded perspective view of the clamp (first embodiment) of the present invention that the blood collection device shown in FIG. 1 has.
- FIG. 4 shows the operation member (second plate member) of the clamp shown in FIG.
- FIG. 5 is a plan view showing a first state of the clamp shown in FIG. 3
- FIG. 6 is a cross-sectional view taken along line AA in FIG. 5
- FIG. 7 is a cross-sectional view taken along line BB in FIG.
- FIG. 8 is a plan view showing a second state of the clamp shown in FIG. 3
- FIG. 9 is a cross-sectional view taken along the line CC in FIG. 8
- FIG. 10 is a DD line in FIG. It is sectional drawing.
- the upper side in FIGS. 3, 4, 6, 7, 9, and 10 is “upper” or “upper”, and lower. The side is called “down” or “down”.
- the blood collection device 1 shown in FIG. 1 includes a blood collection needle 151, a blood collection bag (blood bag) 10 that stores blood collected through the blood collection needle 151, and an initial flow of blood collected through the blood collection needle 151. That is, it has an initial blood bag (test blood bag) 20 that collects (stores) initial blood (test blood (initial blood collection)), and a plurality of tubes as lines connecting them.
- test blood bag initial blood bag
- test blood bag initial blood
- tubes as lines connecting them.
- the blood collection bag 10 is made of, for example, a flexible sheet material made of a soft resin such as polyvinyl chloride, and is fused (heat fusion, high frequency fusion, etc.) or bonded (bonded) at the peripheral seal portion 12. And a bag body 11 having a bag shape.
- a blood storage part 13 for storing the collected blood is formed in an inner part surrounded by the seal part 12 of the bag body 11.
- the blood collection bag 10 may also be used as a red blood cell bag for storing red blood cells.
- the blood storage unit 13 stores and stores concentrated red blood cells to which a red blood cell storage solution is finally added.
- the upper part of the bag body 11 is formed with two openings 14 and 14 which are sealed with a peel tab so as to be opened, and a discharge port 18 is formed on the side of one of the openings 14.
- One end of a tube 61 is connected to the discharge port 18 via a sealing member (breaking communication member) 17.
- a sealing member breaking communication member
- the other end of the tube 61 is connected with a leukocyte removal filter, a red blood cell bag (collection bag), a plasma bag, and a red blood cell storage solution-containing bag.
- a leukocyte removal filter a filter that removes platelets together with leukocytes is used. That is, the blood collection device 1 constitutes a blood bag system.
- the leukocyte removal filter a type that selectively captures only leukocytes and allows platelets to pass therethrough may be used.
- a platelet bag is further provided.
- the sealing member 17, the discharge port 18, and the tube 61 described above may be omitted.
- an anticoagulant is placed in the blood collection bag 10 in advance.
- This anticoagulant is usually a liquid, and examples thereof include ACD-A solution, CPD solution, CPDA-1 solution, and heparin sodium solution.
- the amount of these anticoagulants is an appropriate amount according to the planned blood collection amount.
- a flexible first tube (blood collection line (blood collection tube)) 97 is connected to (connected to) the upper portion of the bag body 11 so as to communicate with the blood storage unit 13.
- the first tube 97 includes a part on the upstream side (blood collection needle 151 side) and a part on the downstream side (blood collection bag 10 side) from the branch part 92 where the second tube (branch line (branch tube)) 91 branches. And can be divided into Hereinafter, the portion of the first tube 97 upstream of the branch portion 92, that is, the portion connecting the branch portion 92 and the blood collection needle 151 is referred to as “tube 94”.
- the portion of the first tube 97 on the downstream side of the branch portion 92 that is, the portion connecting the blood collection bag 10 (bag main body 11) and the branch portion 92 is referred to as “tube 15”.
- a clamp 3 to be described later is installed in the branch portion 92.
- the material similar to the bag main body 11 can be used.
- a blood collection needle 151 is attached (connected) to the left end (one end) of the tube 94 (first tube 97) in FIG.
- the blood collection needle 151 includes a needle body 152, a hub 153 that connects the needle body 152 and the tube 94, and a cap 154 that encloses the needle body 152.
- the second tube 91 is branched from the middle of the first tube 97 via the branching portion 92.
- the first tube 97 and the second tube 91 are branched so as to form a “G” shape (see FIG. 1).
- the initial blood bag 20 is connected to the right end of the second tube 91 in FIG.
- the initial blood bag 20 is provided in a bag-like bag body 21 and an upper end (one end side) of the bag body 21, and a blood inlet (blood inflow part) for introducing the initial blood (blood) into the bag body 21.
- a blood inlet blood inflow part
- a sampling port blood sampling port 29 that is provided at the lower end (the other end side) of the bag main body 21 and collects the first blood flow stored in the bag main body 21.
- the bag body 21 is made of, for example, a flexible sheet material made of a soft resin such as polyvinyl chloride, and is fused (heat fusion, high frequency fusion, etc.) or bonded (joined) at the peripheral seal portion 22. ).
- a storage part (internal space) 23 is formed in an inner part surrounded by the seal part 22 of the bag body 21.
- the first blood flow that has passed through the blood collection needle 151 (needle body 152), the tube 94, the branching part 92, and the second tube 91 in this order is stored (stored).
- a tubular (tubular) blood inlet 24 is provided at the center of the upper end (one end side) of the bag body 21.
- the blood inlet 24 communicates with the storage part 23, and the second tube 91 and the storage part 23 communicate with each other through the blood inlet 24.
- the blood inlet 24 may be formed integrally with the bag main body 21 or a tubular body formed separately from the bag main body 21 may be connected to the bag main body 21. Moreover, the length of the blood inlet 24 is not specifically limited, It may be longer than the example of illustration, and may be short.
- a tubular (tubular) blood outlet 96 is provided at the center of the lower end (other end side) of the bag body 21.
- the blood outlet 96 communicates with the storage part 23, and the sampling port 29 and the storage part 23 communicate with each other through the blood outlet 96.
- the blood outlet 96 may be formed integrally with the bag body 21, or a tubular body formed separately from the bag body 21 may be connected to the bag body 21.
- the length of the blood outlet 96 is not particularly limited, and may be longer or shorter than the illustrated example, but when collecting the initial blood in the bag body 21 from the sampling port 29, The shorter one is preferable because the risk of air contamination can be reduced.
- the sampling port 29 has a cylindrical shape, and a decompression blood collection tube (not shown) is detachably connected to the sampling port 29.
- the primary blood in the bag body 21 is collected in a vacuum blood collection tube connected to the sampling port 29.
- the tube 15 is provided with a sealing member (breaking opening member) 93 in the vicinity of the branch portion 92.
- the sealing member 93 includes a short tube 930 made of a flexible resin such as soft polyvinyl chloride, and is liquid-tightly inserted into the short tube 930 and is solid.
- a cylindrical body 931 whose one end is closed by a columnar portion 932 is formed.
- the portion of the tube 15 where the sealing member 93 is installed is cut, and the short tube 930 complements the cut portion. Therefore, it can be said that the short tube 930 constitutes a part of the tube 15.
- a thin and fragile fracture portion 933 is formed on the outer periphery of the cylindrical body 931.
- the solid columnar portion 932 is bent together with the short tube 930 from the outside of the short tube 930 by fingers or the like to break the fracture portion 933, and the solid columnar portion 932 is separated.
- the inside of the tube 15 (first tube 97) that is blocked (blocked) by the solid columnar portion 932, that is, from the upstream side (the blood collection needle 15 side) to the downstream side (the initial blood bag 20 side). ) Will be opened.
- the constituent material of the cylinder 931 is not particularly limited, and examples thereof include hard materials such as hard polyvinyl chloride, polycarbonate, and polyester.
- the upper portion in FIG. 2 of the solid columnar portion 932 has a wedge shape, and the upper end portion (top portion) 934 has a dimension in the width direction smaller than the outer diameter of the cylindrical body 931 and larger than the inner diameter of the tube 15. It is preferable that the solid columnar part 932 does not block the tube 15 after the solid columnar part 932 is broken and separated. Further, as illustrated, a groove 935 that promotes blood circulation may be provided in the upper end 934 of the solid columnar portion 932.
- the clamp 3 is installed in the branch part 92 (refer FIG. 1).
- the clamp 3 includes a pair of plate members, that is, a first plate member (clamp body) 4 and a second plate member (operation member) 5.
- the first plate member 4 and the second plate member 5 are overlapped (opposed to each other), and the second plate member 5 is moved relative to the first plate member 4.
- a rotation operation can be performed around an axis (rotation center 53) perpendicular to the surface direction.
- the clamp 3 is shown in the first state (initial state) shown in FIG. 5 and in FIG. It can be switched to the second state.
- the configuration of each unit will be described.
- the constituent materials of the first plate member 4 and the second plate member 5 are not particularly limited.
- resins such as polypropylene, cyclic polyolefin, and polyester are preferable because they are easy to mold.
- the constituent materials of the first plate member 4 and the second plate member 5 are preferably substantially transparent in order to ensure the visibility of the inside of the clamp 3, that is, the vicinity of the branch portion 92.
- the first plate member 4 includes a main body portion 40 having a disk shape, a support portion (guide portion) 41 that rotatably supports the second plate member 5, and a second plate member 4.
- the first pressure closing part (pressure closing part) 42 capable of pressing and closing the second tube 91 between the plate member 5 (second pressure closing part 51) and the vicinity of the branching part 92 are fixed. And a fixing portion 43.
- the support portion 41 includes a plurality of (five in the present embodiment) protruding pieces 411 that protrude upward from the upper surface 401 of the main body portion 40. These projecting pieces 411 are arranged at equal intervals along the circumferential direction of the main body 40 (first plate member 4).
- the second plate member 5 is disposed inside the protruding pieces 411, and the outer peripheral portion 501 contacts the protruding pieces 411. Thereby, the position of the radial direction of the 2nd board member 5 is controlled (refer to Drawing 7 and Drawing 10).
- Each protrusion 411 is formed with a claw 412 that protrudes inward.
- the edge of the upper surface 502 of the second plate member 5 engages with the claw 412 of each protruding piece 411. Thereby, the position of the 2nd board member 5 in the up-and-down direction is regulated (refer to Drawing 7 and Drawing 10).
- the second plate member 5 is rotatably supported by such a support portion 41.
- reaction force from the second tube 91 acting on the second plate member 5 when the second tube 91 is closed by the claw 412 of each protruding piece 411 can be received.
- the fixing portion 43 includes a first groove 431 and a second groove 432 formed on the upper surface 401 of the main body portion 40 (see FIG. 3).
- the first groove 431 is a linear groove that passes through the center of the main body 40 and opens to the outer peripheral portion (side surface) 402 of the main body 40. A part of the first tube 97 (in the vicinity of the branch portion 92) is inserted into the first groove 431 (see FIGS. 5 and 8).
- the second groove 432 is a linear groove branched from the center of the first groove 431. Similarly to the first groove 431, the second groove 432 also opens to the outer peripheral portion (side surface) 402 of the main body portion 40. A part of the second tube 91 (a portion near the branching portion 92 side) is inserted into the second groove 432.
- the first tube 97 and the second tube 91 are securely fixed by such a fixing portion 43, that is, positioning is performed.
- the first tube 97 and the second tube 91 are unintentionally displaced due to the rotational force (the second tube member 5 rotates with the second plate member 5). Can be surely prevented.
- the upper surface 401 of the main body portion 40 is formed with a third groove 44 having an annular shape formed concentrically with the center thereof.
- the third groove 44 intersects with the first groove 431 at two places and intersects with the second groove 432 at one place.
- the third groove 44 functions as the first pressure closing portion 42 at a portion intersecting with the second groove 432, that is, a bottom portion of a portion where the second tube 91 crosses (FIGS. 5 and 6). FIG. 8 and FIG. 9).
- the second plate member 5 is arranged concentrically with the first plate member 4 via the branch portion 92 above the first plate member 4. Further, the second plate member 5 is rotated as described above, and the rotation center 53 thereof coincides with the branch portion 92 in plan view (see FIG. 3). With such an arrangement, the operability when the second plate member 5 is rotated is improved, that is, the clamp 3 is easy to operate.
- the second plate member 5 may press-close the second tube 91 between the main body portion 50 having a disk shape and the first plate member 4 (first pressure closing portion 42).
- an operating lever 54 is provided.
- the rib 55 is inserted into the third groove 44 of the first plate member 4.
- the rib 55 having such a configuration is formed with a portion whose height is further increased, and this portion functions as the second pressure closing portion 51.
- the first pressure closing portion 42 of the first plate member 4 and the second pressure closing portion 51 of the second plate member 5 are separated from each other. Yes.
- the separation distance h between the first pressure closing portion 42 and the second pressure closing portion 51 changes, that is, the second The pressure closing part 51 approaches / separates from the first pressure closing part 42.
- the separation distance h between the first pressure closing part 42 and the second pressure closing part 51 is the maximum, that is, the second pressure closing part 51 is It is farthest from the first pressure closing part 42.
- the second tube 91 is not closed by the first pressure closing part 42 and the second pressure closing part 51.
- the second tube 91 is opened from the upstream side to the downstream side, so that the initial blood that has passed through the tube 94 flows into the initial blood bag 20 via the second tube 91. Can do.
- the sealing member 93 since the sealing member 93 has not yet been broken, the initial blood that has passed through the tube 94 is further prevented from passing through the tube 15 and flowing into the blood collection bag 10 (see FIG. 5). .
- the separation distance h between the first pressure closing portion 42 and the second pressure closing portion 51 is the minimum, that is, the second pressure closing portion 51 is the first pressure closing portion 42. Is the closest.
- the second tube 91 is reliably closed between the first pressure closing part 42 and the second pressure closing part 51.
- blood that has passed through the tube 94 is prevented from passing through the second tube 91 and flowing into the initial blood bag 20.
- the second pressure closing portion 51 is formed with an inclined portion 511 at an end located in the traveling direction (arrow E direction) when the second plate member 5 is rotated (see FIG. 9). ).
- the separation distance h gradually changes (decreases) along the rotation direction of the second plate member 5.
- the second pressure closing unit 51 provided with such an inclined portion 511 presses the second tube 91 against the first plate member 4 and presses and closes the second tube 91. Acts as
- the outer peripheral portion 501 of the main body 50 is provided with a blocking portion 52 constituted by a protrusion protruding in the radial direction (outward).
- the blocking portion 52 blocks the breaking operation on the sealing member 93 in the first state (see FIGS. 5 and 7).
- the blocking portion 52 has a shape surrounding the sealing member 93 (short tube 930), that is, the cross-sectional shape is opposite to the direction in which the blocking portion 52 is retracted (direction of arrow E). It has a “U” shape that is open at the top. Thereby, in the 1st state, the sealing member 93 is covered with the prevention part 52, Therefore The said sealing member 93 cannot be hold
- the blocking portion 52 is retracted from the sealing member 93 as the second plate member 5 rotates.
- the state in which the breaking operation by the blocking portion 52 is blocked is released, that is, the sealing member 93 is exposed, so that the sealing member 93 can be held and the breaking operation can be performed.
- the blocking portion 52 moves between two adjacent protruding pieces 411a and 411b in FIG. 5 (the same applies to FIGS. 3 and 8) of the five protruding pieces 411 of the first plate member 4. Can do. Thereby, the rotation range of the 2nd board member 5 is controlled. Therefore, the clamp 3 has the first state in which the second tube 91 is opened and the breaking operation with respect to the sealing member 93 is prevented, the second tube 91 is closed, and the sealing member 93 is closed. It is possible to reliably set the second state in which the breaking operation can be performed.
- the protruding pieces 411 a and 411 b can be said to be regulating means for regulating the rotation range of the second plate member 5.
- an operation lever 54 is formed to project from the upper surface 502 of the main body 50 (second plate member 5).
- the operation lever 54 is a plate-like portion standing from the main body 50. Further, as shown in FIG. 8, the operation lever 54 is disposed so as to coincide with the extending direction of the first tube 97 in the second state.
- the operation lever 54 is formed, when the second plate member 5 is rotated, the operation lever 54 can be gripped with a finger to perform the rotation operation. The nature is further improved.
- the operation state (use state) of the clamp 3 the operation state (use state) of the clamp 3
- the clamp 3 is in the first state.
- the tube 94 of the first tube 97 and the second tube 91 communicate with each other (see FIGS. 5 and 6).
- the tube 15 of the first tube 97 is closed (sealed) by the sealing member 93.
- blood from the tube 94 can flow into the second tube 91 via the branch portion 92 when the blood collection needle 151 is punctured into the donor.
- the blood collection bag 10 and the initial blood bag 20 of the blood collection device 1 are respectively installed at positions lower than the site where the blood collection needle 151 is punctured.
- the cap 154 is removed from the blood collection needle 151 (see FIG. 1), the blood collection needle 151 is punctured into the donor's vein (blood vessel), and when it is confirmed that the blood collection needle 151 captures the vein, the hub 153 is attached to the donor's vein.
- the hub 153 is attached to the donor's vein.
- it is fixed with an adhesive tape in the vicinity of the puncture site.
- the first tube 97 (tube 94) is also preferably fixed with an adhesive tape near the puncture site.
- the initial blood flow (blood) flows into the second tube 91 through the blood collection needle 151, the tube 94, and the branching portion 92, flows through the second tube 91, and stores the initial blood bag 20. Part 23 is introduced.
- the flow path of the tube 15 is blocked by the sealing member 93 as described above, the blood surely flows into the second tube 91 from the tube 94 through the branch portion 92.
- the air in the tube 94 and the second tube 91 is discharged from these tubes and collected in the initial blood bag 20 before that.
- the pressure in the tube 94 and the second tube 91 and the volume of the lumen of the tube 94 and the second tube 91 are kept substantially constant to prevent an excessive load on the blood cells. Therefore, hemolysis and the like can be prevented from occurring in the blood. Further, the blood does not enter and remain on the side of the sealing member 93 at the branch portion 92.
- a predetermined amount (target amount) of blood is collected (collected) in the initial blood bag 20.
- the blocking portion 52 of the second plate member 5 is retracted from the sealing member 93 and the sealing member 93 is exposed. Is possible (see FIGS. 8 and 10).
- the clamp 3 is configured so that the second tube 91 is pressure-closed before the breaking operation on the sealing member 93 is enabled when the first state is changed to the second state. It is preferable. In other words, in the clamp 3, the second tube 91 is completely crushed during the transition from the first state to the second state, but the sealing member 93 is not completely exposed (exposed). It is preferable to be in the middle). Such a configuration is possible, for example, by appropriately setting the positional relationship between the second pressure closing part 51 and the blocking part 52 in the second plate member 5.
- the broken portion 933 of the exposed sealing member 93 is broken to separate the solid columnar portion 932, and the flow path in the sealing member 93 is opened.
- the first tube 97 communicates (opens) the flow path from the upstream side to the downstream side.
- the collected blood flows through the first tube 97 and is introduced into the blood storage part 13 of the blood collection bag 10.
- the blood collection bag 10 in which the blood from which the primary blood has been removed (collected) is stored is obtained.
- the vacuum blood collection tube is inserted into the sampling port 29 of the primary blood bag 20, and the blood stored in the primary blood bag 20 is collected into the vacuum blood collection tube. (Sampling). Thereafter, the vacuum blood collection tube from which the blood has been collected is removed from the sampling port 29. Note that this operation is repeated when blood is sampled into a plurality of decompression blood collection tubes. The sampling may be performed after blood collection into the blood collection bag 10 is completed.
- the blood collection needle 151 is removed from the blood vessel of the donor, and if necessary, the first tube 97, second The tube 91 is sealed by fusion. Thereafter, the initial blood bag 20 and the blood collection needle 151 are separated.
- the blood stored (collected) in the blood collection bag 10 is passed through a leukocyte removal filter to separate white blood cells and platelets, the remaining blood components are collected in a collection bag, and the blood collection bag 10 and the white blood cell removal filter are separated. . Thereafter, the blood in the collection bag is centrifuged to separate the red blood cell layer and the plasma layer, and after transferring the plasma to the plasma bag, the red blood cells in the bag containing the red blood cell storage solution are added to the concentrated red blood cells remaining in the collection bag. Add the stock solution and mix.
- the primary blood collected in the reduced-pressure blood collection tube is used for, for example, tests such as a biochemical test for serum and a nucleic acid amplification test for infectious disease viruses (for example, AIDS, hepatitis, etc.).
- tests such as a biochemical test for serum and a nucleic acid amplification test for infectious disease viruses (for example, AIDS, hepatitis, etc.).
- the second tube 91 is closed and then installed in the first tube 97.
- the sealing member 93 can be broken. That is, when operating the blood collection instrument 1, before closing the second tube 91, the sealing member 93 installed in the first tube 97 is broken, and the first tube 97 is downstream from the upstream side. It is possible to reliably prevent the side from being opened (opened).
- the sealing member 93 is broken before the second tube 91 is closed, the initial blood flows into the blood collection bag 10 for the main blood collection even though the initial blood collection is finished. In this state, when shifting to the main blood collection, the blood is contaminated by the initial blood already stored in the blood collection bag 10, and the collected blood must be discarded (the blood is wasted). turn into).
- FIG. 11 is a plan view showing a first state of the clamp of the present invention (second embodiment)
- FIG. 12 is a plan view showing a second state of the clamp of the present invention (second embodiment).
- This embodiment is the same as the first embodiment except that the configuration (shape) of the blocking portion is different.
- the first plate member 4 ⁇ / b> A (main body portion 40) has a defective portion 45 formed on the outer peripheral portion 402 thereof.
- the missing portion 45 is a portion where the portion corresponding to (corresponding to) the sealing member 93 of the outer peripheral portion 402 is missing.
- the defect portion 45 has a fan shape.
- a defect 56 is formed on the outer periphery of the second plate member 5A at a portion that coincides (overlaps) with the defect 45 of the first plate member 4A in the second state. ing. Like the defect portion 45, the defect portion 56 has a fan shape. With such a configuration, in the second state, the sealing member 93 is exposed through the missing portions 45 and 56, and thus the sealing member 93 can be gripped and the breaking operation can be reliably performed.
- FIG. 13 is a longitudinal sectional view showing a first state of the clamp of the present invention (third embodiment), and FIG. 14 is a longitudinal sectional view showing a second state of the clamp of the present invention (third embodiment). is there.
- clamp further includes a protective sheet.
- the first plate member 4 ⁇ / b> B (main body portion 40) has a flexible protective sheet on the bottom portion (first pressure closing portion 42) of the third groove 44. 46 is installed. This protective sheet 46 reduces the frictional resistance with the second plate member 5 during the turning operation.
- the protective sheet 46 has a fixed portion 461 that is fixed to the bottom portion of the third groove 44 with an adhesive, for example, at one end side (left side in FIG. 13 (the same applies to FIG. 14)). Further, a portion of the protective sheet 46 opposite to the fixing portion 461 is a covering portion 462 that covers the second tube 91.
- the constituent material of the protective sheet 46 is not particularly limited, and for example, polytetrafluoroethylene (PTFE) can be used.
- PTFE polytetrafluoroethylene
- a surface treatment for reducing the frictional resistance may be applied to the second pressure closing part 51 of the second plate member 5 or the second tube 91.
- FIG. 15 is a schematic view (plan view) showing a fourth embodiment of the blood collecting instrument of the present invention
- FIG. 16 is a perspective view of the clamp (fourth embodiment) of the present invention which the blood collecting instrument shown in FIG. 15 has.
- 17 and 18 are views of the clamp shown in FIG. 16 as viewed from the direction of arrow E
- FIG. 17 is a side view showing the first state of the clamp shown in FIG. 16
- FIG. 18 is the clamp shown in FIG.
- FIG. 19 is a sectional view taken along line FF in FIG. 17,
- FIG. 20 is a sectional view taken along line GG in FIG.
- the upper side in FIGS. 16 to 20 (the same applies to FIGS. 21 to 24) is referred to as “upper” or “upper”, and the lower side is referred to as “lower” or “lower”.
- This embodiment is the same as the first embodiment except that the clamp configuration is different. As shown in FIG. 15, in the present embodiment, the clamp 6 is installed in the vicinity of the branch portion 92.
- the clamp 6 is composed of two members, a pressure closing member (connecting member) 7 and a blocking member (blocking portion) 8 serving as a main body (clamp body).
- the pressure closing member 7 and the blocking member 8 are connected and fixed to each other, and can be switched between the first state (initial state) shown in FIG. 17 and the second state shown in FIG. .
- the change from the first state to the second state is performed by pressing the pressure closing member 7 (operation unit 77).
- operation unit 77 the configuration of each unit will be described.
- the constituent materials of the pressure closing member 7 and the blocking member 8 are not particularly limited, and for example, polyvinyl chloride, polyethylene, polypropylene, cyclic polyolefin, polystyrene, poly- (4-methylpentene-1), polycarbonate, acrylic Resin, acrylonitrile-butadiene-styrene copolymer, polyester such as polyethylene terephthalate, polyethylene naphthalate, butadiene-styrene copolymer, polyamide (eg, nylon 6, nylon 6,6, nylon 6,10, nylon 12) Among these, resins such as polypropylene, cyclic polyolefin, and polyester are preferable because they can be easily molded.
- the clamp 6 is configured by separately forming the pressure closing member 7 and the blocking member 8 and connecting these separate bodies, but the present invention is not limited to this.
- the blocking member 8 may be integrally formed.
- the pressure-closing member 7 is formed of a plate member whose shape is plate-like and whose middle in the longitudinal direction is curved (or bent). That is, the pressure closing member 7 is configured by a plate member having a “U” shape (or “V” shape) in a side view. A second tube 91 is installed inside the pressure closing member 7.
- the curved portion functions as an elastic deformation portion 71 that elastically deforms, and against the elastic force of the elastic deformation portion 71, the other end portion with respect to one end portion (lower portion) 72 of the pressure closing member 7.
- the (upper part) 73 can be pressed (see FIGS. 17 and 18). Therefore, the outer surface of the other end portion 73 of the pressure closing member 7 functions as an operation portion 77 that performs a pressing operation.
- the pressure-closing member 7 is provided with a pressure-closing part (clamping part) 74 that can press-close the second tube 91.
- the pressure closing portion 74 includes a contact portion 75 provided at one end portion 72 of the pressure closing member 7 (connection member) and a pressing portion 76 provided at the other end portion 73 so as to face the contact portion 75. It is configured.
- the abutting portion 75 is a portion that abuts on a part of the outer peripheral portion 911 of the second tube 91.
- the abutting portion 75 is configured by an inner surface of the one end portion 72 of the pressure closing member 7.
- the pressing portion 76 is a portion (projecting portion) formed to protrude from the inner surface of the other end portion 73 of the pressure-closing member 7.
- the pressing portion 76 is disposed so as to face the contact portion 75 through the second tube 91.
- the pressing portion 76 is separated from the second tube 91.
- the second tube 91 is opened from the upstream side to the downstream side. Therefore, the initial blood flow that has passed through the tube 94 passes through the second tube 91 to the initial blood bag 20. Can flow in.
- the sealing member 93 since the sealing member 93 has not yet been broken, the initial blood that has passed through the tube 94 is further prevented from passing through the tube 15 and flowing into the blood collection bag 10 (see FIG. 17). .
- the second state shown in FIG. 18 (also in FIG. 20) is obtained.
- the pressing portion 76 approaches (closes) the contact portion 75, and the top surface (pressing surface) 761 presses the outer peripheral portion 911 of the second tube 91.
- the middle of the second tube 91 can be reliably closed (blocked).
- blood that has passed through the tube 94 is prevented from passing through the second tube 91 and flowing into the initial blood bag 20.
- the pressing portion 76 projecting from the inner surface of the other end portion 73 of the pressure-closing member 7 has a first claw 762 toward the distal end side (the branching portion 92 side). Projectingly formed.
- an inclined surface 763 is formed on the tip side of the first claw 762.
- a protrusion 78 is erected on the inner surface of the one end portion 72 of the pressure closing member 7 at a position closer to the tip than the contact portion 75.
- a second claw 781 protrudes from the protrusion 78 toward the base end side.
- an inclined surface 782 that is inclined in substantially the same direction as the inclined surface 763 of the first claw 762 is formed on the base end side portion of the second claw 781.
- the inclined surface 763 of the first claw 762 comes into contact with the inclined surface 782 of the second claw 781 and slides.
- the first claw 762 gets over the second claw 781.
- the second state is entered.
- the pressure on the operation portion 77 is released, the top surface 761 of the pressing portion 76 receives a reaction force from the second tube 91.
- the first claw 762 and the second claw 781 are engaged, and thus the second state is maintained, that is, the second state is unintentionally released, and the first state and This can be reliably prevented (see FIG. 18).
- the first claw 762 and the second claw 781 constitute a locking means (state maintaining means) for maintaining the second state.
- the projecting portion 78 is formed with a through-hole 783 that penetrates the projecting portion 78 in the thickness direction, and the elastic deforming portion 71 is also provided with the elastic deforming portion 71 in the thickness direction.
- a penetrating through hole 711 is formed.
- the second tube 91 is inserted through the through holes 783 and 711.
- the second tube 91 is prevented from being detached from the pressure closing member 7, and therefore, when the operation portion 77 is pressed, the second tube 91 can be reliably closed by the pressure closing portion 74. it can.
- a blocking member 8 is installed adjacent to the pressure closing member 7.
- the blocking member 8 blocks the breaking operation on the sealing member 93 in the first state.
- the blocking member 8 is formed of a long hollow member, and the hollow portion 81 is open upward (in a direction opposite to the retracting direction). That is, the blocking member 8 is formed of a long member having a “U” shape whose cross-sectional shape is open upward. Such a blocking member 8 is disposed in parallel to the other end portion of the pressure closing member 7 and is connected and fixed to the portion.
- the fixing method is not particularly limited, and examples thereof include a method using adhesion (adhesion with an adhesive or a solvent), a method using fusion (thermal fusion, high-frequency fusion, ultrasonic fusion, etc.), and the like. .
- the sealing member 93 is covered with the blocking member 8, that is, is located in the hollow portion 81 of the blocking member 8 (inserted). ) As a result, the sealing member 93 cannot be gripped, and therefore the breaking operation on the sealing member 93 is reliably prevented.
- the blocking member 8 moves downward together with the pressing portion 76 of the pressure closing portion 74 in accordance with the pressing operation of the operating portion 77. Thereby, the blocking member 8 is retracted from the sealing member 93, and thus the sealing member 93 is exposed. Thereby, the state in which the breaking operation by the blocking member 8 is blocked is released, and thus the sealing member 93 is held and the breaking operation can be performed.
- the operation state (use state) of the clamp 6 the operation state (use state) of the clamp 6) will be described.
- the clamp 6 is in the first state.
- the tube 94 of the first tube 97 and the second tube 91 communicate with each other (see FIGS. 17 and 19).
- the tube 15 of the first tube 97 is closed (sealed) by the sealing member 93.
- blood from the tube 94 can flow into the second tube 91 via the branch portion 92 when the blood collection needle 151 is punctured into the donor.
- the blood collection bag 10 and the initial blood bag 20 of the blood collection device 1 are respectively installed at positions lower than the site where the blood collection needle 151 is punctured.
- the cap 154 is removed from the blood collection needle 151 (see FIG. 15), and the blood collection needle 151 is punctured into the donor's vein (blood vessel). For example, it is fixed with an adhesive tape in the vicinity of the puncture site.
- the first tube 97 (tube 94) is also preferably fixed with an adhesive tape near the puncture site.
- the initial blood flow (blood) flows into the second tube 91 through the blood collection needle 151, the tube 94, and the branching portion 92, flows through the second tube 91, and stores the initial blood bag 20. Part 23 is introduced.
- the flow path of the tube 15 is blocked by the sealing member 93 as described above, the blood surely flows into the second tube 91 from the tube 94 through the branch portion 92.
- the air in the tube 94 and the second tube 91 is discharged from these tubes and collected in the initial blood bag 20 before that.
- the pressure in the tube 94 and the second tube 91 and the volume of the lumen of the tube 94 and the second tube 91 are kept substantially constant to prevent an excessive load on the blood cells. Therefore, hemolysis and the like can be prevented from occurring in the blood. Further, the blood does not enter and remain on the side of the sealing member 93 at the branch portion 92.
- a predetermined amount (target amount) of blood is collected (collected) in the initial blood bag 20.
- the blocking member 8 is retracted from the sealing member 93 and the sealing member 93 is exposed, so that the breaking operation on the sealing member 93 is possible (Refer FIG. 18, FIG. 20).
- the clamp 6 is configured so that the second tube 91 is press-closed before the breaking operation on the sealing member 93 is enabled when the first state is changed to the second state. It is preferable. In other words, in the clamp 6, the second tube 91 is completely squeezed during the transition from the first state to the second state, but the sealing member 93 is not completely exposed (exposed). It is preferable to be in the middle). Such a configuration is possible, for example, by appropriately setting the size (shape) of the blocking member 8 and the like.
- the broken portion 933 of the exposed sealing member 93 is broken to separate the solid columnar portion 932, and the flow path in the sealing member 93 is opened.
- the first tube 97 communicates (opens) the flow path from the upstream side to the downstream side.
- the collected blood flows through the first tube 97 and is introduced into the blood storage part 13 of the blood collection bag 10.
- the blood collection bag 10 in which the blood from which the primary blood has been removed (collected) is stored is obtained.
- the vacuum blood collection tube is inserted into the sampling port 29 of the primary blood bag 20, and the blood stored in the primary blood bag 20 is collected into the vacuum blood collection tube. (Sampling). Thereafter, the vacuum blood collection tube from which the blood has been collected is removed from the sampling port 29. Note that this operation is repeated when blood is sampled into a plurality of decompression blood collection tubes. The sampling may be performed after blood collection into the blood collection bag 10 is completed.
- the blood collection needle 151 is removed from the blood vessel of the donor, and if necessary, the first tube 97, second The tube 91 is sealed by fusion. Thereafter, the initial blood bag 20 and the blood collection needle 151 are separated.
- the blood stored (collected) in the blood collection bag 10 is passed through a leukocyte removal filter to separate white blood cells and platelets, the remaining blood components are collected in a collection bag, and the blood collection bag 10 and the white blood cell removal filter are separated. . Thereafter, the blood in the collection bag is centrifuged to separate the red blood cell layer and the plasma layer, and after transferring the plasma to the plasma bag, the red blood cells in the bag containing the red blood cell storage solution are added to the concentrated red blood cells remaining in the collection bag. Add the stock solution and mix.
- the primary blood collected in the reduced-pressure blood collection tube is used for, for example, tests such as a biochemical test for serum and a nucleic acid amplification test for infectious disease viruses (for example, AIDS, hepatitis, etc.).
- tests such as a biochemical test for serum and a nucleic acid amplification test for infectious disease viruses (for example, AIDS, hepatitis, etc.).
- the second tube 91 is closed and then installed in the first tube 97 when the main blood is collected after the initial blood collection.
- the sealing member 93 can be broken. That is, when operating the blood collection instrument 1, before closing the second tube 91, the sealing member 93 installed in the first tube 97 is broken, and the first tube 97 is downstream from the upstream side. It is possible to reliably prevent the side from being opened (opened).
- the sealing member 93 is broken before the second tube 91 is closed, the initial blood flows into the blood collection bag 10 for the main blood collection even though the initial blood collection is finished. In this state, when shifting to the main blood collection, the blood is contaminated by the initial blood already stored in the blood collection bag 10, and the collected blood must be discarded (the blood is wasted). turn into).
- FIG. 21 is a side view showing a first state of the clamp of the present invention (fifth embodiment)
- FIG. 22 is a side view showing a second state of the clamp of the present invention (fifth embodiment)
- FIG. FIG. 22 is a cross-sectional view taken along the line HH in FIG.
- This embodiment is the same as the fourth embodiment except that the connection state between the pressure closing member and the blocking member is different.
- the pressure closing member 7A and the blocking member 8A are connected to each other so as to be rotatable.
- a shaft (rotating shaft) 764 is formed to protrude on the side surface on the blocking member 8A side (see FIG. 23). Further, a bearing 82 into which the shaft 764 is inserted is recessed in the blocking member 8A on the side surface on the pressure closing member 7A side (see FIG. 23). The shaft 764 and the bearing 82 allow the blocking member 8A to rotate with respect to the pressure closing member 7A.
- a pin that passes through the pressure closing member 7A and the blocking member 8A may be provided to connect these members.
- a cam groove 784 is formed in the protrusion 78 of the pressure closing member 7A (see FIGS. 21 and 22).
- the blocking member 8A is formed with a follower portion 83 that is inserted into the cam groove 784 and functions as a cam follower.
- the cam groove 784 and the follower portion 83 allow the blocking member 8A to be parallel to the tube 15 of the first tube 97 in the first state (hereinafter referred to as “this”).
- the posture is referred to as “parallel posture”).
- the tube 15 is covered with the blocking member 8A in addition to the portion where the sealing member 93 is installed, and the front and rear portions thereof are also covered with the blocking member 8A. To be blocked.
- the blocking member 8A moves downward while maintaining the parallel posture, that is, translates, because the follower portion 83 is guided by the cam groove 784 of the pressure closing member 7A. As shown in FIG. 22, even in the second state after movement, the blocking member 8A is in a parallel posture. As a result, the entire tube 15 is exposed, so that the breaking operation for the sealing member 93 can be performed.
- the cam groove 784 and the follower portion 83 constitute posture maintaining means for maintaining the posture of the blocking member 8A with respect to the tube 15.
- FIG. 24 is a partial vertical sectional side view showing a first state of the clamp (sixth embodiment) of the present invention.
- the fitting portion 79 has a tubular shape and an inner diameter thereof is slightly smaller than the outer diameter of the second tube 91.
- the middle of the second tube 91 is fitted to such a fitting portion 79.
- the fixing means for fixing the second tube 91 is the fitting portion 79 in the present embodiment, but is not limited to this.
- the one end portion 72 of the pressure-closing member 7B, the second tube 91, The fitting part with the branch part 92 may be provided in the one end part 72 of the pressure closing member 7B.
- the fixing means is not limited to the one that fixes the second tube 91, and may be, for example, one that fixes the first tube 97 (tube 91), or the first tube 97 and the second tube 91. Both of the tubes 91 may be fixed.
- clamp and blood collection instrument of this invention were demonstrated about embodiment of illustration, this invention is not limited to this, Each part which comprises a clamp and a blood collection instrument is arbitrary which can exhibit the same function. It can be replaced with the configuration of Moreover, arbitrary components may be added.
- clamp and blood collection device of the present invention may be a combination of any two or more configurations (features) of the above embodiments.
- the second tube of the blood collection device extends (branches) obliquely upward to the right with respect to the first tube in the configuration shown in FIGS. 1 and 15, but is not limited thereto. , It may extend in any direction relative to the first tube. In this case, in the first to third embodiments, it is preferable to appropriately set the positions of the second pressure closing part and the blocking part of the second plate member according to the extending direction of the second tube.
- the clamp has a blocking means for blocking the change from the second state to the first state. That is, the clamp is preferably irreversible.
- the pressure-closing portion is configured such that the pressing portion of the contact portion and the pressing portion protrudes toward the contact portion in the illustrated configuration. It is not limited to this, The contact part may become what protruded toward the press part.
- a hook is provided at one end portion of the pressure-closing member as a position restricting means for restricting the position of the first tube 97 with respect to the tube 15. May be. Thereby, it is prevented that the sealing member 93 is detached from the blocking member 8 in the first state.
- the clamp of the present invention includes a first tube having a blood collection needle connected to one end and a blood bag connected to the other end, a second tube branched from the middle of the first tube via a branch portion, A clamp installed at the branch part of the blood collecting instrument, which is installed in a portion closer to the blood bag than the branch part of the tube of 1 and has a sealing member that opens the cut-off first tube when broken.
- a first state in which the second tube is opened and a breaking operation with respect to the sealing member is prevented; and the second tube is closed; It is comprised so that it can switch to the 2nd state in which fracture
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Abstract
Description
第1の状態は、採血チューブの上流側の部分と分岐チューブとを連通させる状態(特許文献1の図2(a)参照)。
一端に採血針、他端に血液バッグが各々接続された第1のチューブと、該第1のチューブの途中から分岐部を介して分岐した第2のチューブと、前記第1のチューブの前記分岐部よりも前記血液バッグ側の部分に設置され、破断すると遮断状態の前記第1のチューブが開通する封止部材とを備える採血器具の前記分岐部に設置されるクランプであって、
前記第2のチューブが開通しており、かつ、前記封止部材に対する破断操作が阻止されている第1の状態と、前記第2のチューブが閉塞され、かつ、前記封止部材に対する破断操作が可能である第2の状態とに切り替えることができるように構成されていることを特徴とするクランプである。
前記操作部材は、前記第2のチューブを押圧して閉塞する押圧部と、前記封止部材に対する破断操作を阻止する阻止部とを備え、
前記操作部材を前記クランプ本体に対して回動操作すると、前記第1の状態から前記第2の状態とに切り替えられるのが好ましい。
しかしながら、本発明では、このような不具合を確実に防止することができる。
前記阻止部は、前記操作部材の外周部から外方に向かって突出形成された突部で構成されているのが好ましい。
前記操作部材は、その形状が板状をなすものであり、
前記阻止部は、前記第1の状態で前記操作部材の外周部の前記欠損部に臨む部分で構成されているのが好ましい。
前記クランプ本体は、前記第2のチューブを押圧して閉塞する挟持部と、該挟持部を操作する操作部とを備え、
前記操作部を操作すると、前記第1の状態から前記第2の状態とに切り替えられるのが好ましい。
しかしながら、本発明では、このような不具合を確実に防止することができる。
前記クランプ本体と前記中空部材とは、隣接して平行に配置されているのが好ましい。
本発明のクランプと、
一端に採血針、他端に血液バッグが各々接続された第1のチューブと、
前記第1のチューブの途中から分岐部を介して分岐した第2のチューブと、
前記第1のチューブの前記分岐部よりも前記血液バッグ側の部分に設置され、破断すると遮断状態の前記第1のチューブが開通する封止部材とを備え、
前記クランプは、前記第1のチューブの前記分岐部に設置されていることを特徴とする採血器具である。
図1は、本発明の採血器具の第1実施形態を示す概略図、図2は、図1に示す採血器具が有する封止部材(破断開通部材)の構成例を示す縦断面図、図3は、図1に示す採血器具が有する本発明のクランプ(第1実施形態)の分解斜視図、図4は、図3に示すクランプが有する操作部材(第2の板部材)をその下面側から見た斜視図、図5は、図3に示すクランプの第1の状態を示す平面図、図6は、図5中のA-A線断面図、図7は、図5中のB-B線断面図、図8は、図3に示すクランプの第2の状態を示す平面図、図9は、図8中のC-C線断面図、図10は、図8中のD-D線断面図である。なお、以下では、説明の都合上、図3、図4、図6、図7、図9、図10中(図13、図14についても同様)の上側を「上」または「上方」、下側を「下」または「下方」と言う。
図3に示すように、クランプ3は、一対の板部材、すなわち、第1の板部材(クランプ本体)4と第2の板部材(操作部材)5とを備えている。クランプ3では、第1の板部材4と第2の板部材5とが重なった(互いに対向した)状態となっており、第2の板部材5を第1の板部材4に対して、その面方向に対し垂直な軸(回動中心53)回りに回動操作することができる。この回動操作により(第1の板部材4に対する第2の板部材5の回動角度に応じて)、クランプ3は、図5に示す第1の状態(初期状態)と、図8に示す第2の状態とに切り替え可能なものである。以下、各部の構成について説明する。
このような支持部41により、第2の板部材5が回転可能に支持される。
図1に示すように、採血器具1では、まず、クランプ3が第1の状態となっている。これにより、第1のチューブ97のチューブ94と第2のチューブ91とが連通している(図5、図6参照)。また、第1のチューブ97のチューブ15は、封止部材93により閉塞した(封止された)状態となっている。このような採血器具1では、ドナーに採血針151を穿刺した際、チューブ94からの血液は、分岐部92を介して、第2のチューブ91に流入することができる。
この場合、前記露出した封止部材93の破断部933を破断して中実柱状部932を分離し、封止部材93内の流路を開通させる。この操作により、第1のチューブ97は、上流側から下流側までの流路が連通(開放)する。これにより、採血された血液が、第1のチューブ97を流れ、採血バッグ10の血液収納部13に導入される。これにより、初流血の除去された(採取された)血液が収納された採血バッグ10が得られる。
なお、サンプリングは、採血バッグ10への採血が終了した後に行ってもよい。
図11は、本発明のクランプ(第2実施形態)の第1の状態を示す平面図、図12は、本発明のクランプ(第2実施形態)の第2の状態を示す平面図である。
図13は、本発明のクランプ(第3実施形態)の第1の状態を示す縦断面図、図14は、本発明のクランプ(第3実施形態)の第2の状態を示す縦断面図である。
図15は、本発明の採血器具の第4実施形態を示す概略図(平面図)、図16は、図15に示す採血器具が有する本発明のクランプ(第4実施形態)の斜視図、図17および図18は、それぞれ、図16に示すクランプを矢印E方向から見た図(図17は、図16に示すクランプの第1の状態を示す側面図、図18は、図16に示すクランプの第2の状態を示す側面図)、図19は、図17中のF-F線断面図、図20は、図18中のG-G線断面図である。なお、以下では、説明の都合上、図16~図20中(図21~図24についても同様)の上側を「上」または「上方」、下側を「下」または「下方」と言う。
図15に示すように、本実施形態では、分岐部92付近には、クランプ6が設置されている。
図15に示すように、採血器具1では、まず、クランプ6が第1の状態となっている。これにより、第1のチューブ97のチューブ94と第2のチューブ91とが連通している(図17、図19参照)。また、第1のチューブ97のチューブ15は、封止部材93により閉塞した(封止された)状態となっている。このような採血器具1では、ドナーに採血針151を穿刺した際、チューブ94からの血液は、分岐部92を介して、第2のチューブ91に流入することができる。
この場合、前記露出した封止部材93の破断部933を破断して中実柱状部932を分離し、封止部材93内の流路を開通させる。この操作により、第1のチューブ97は、上流側から下流側までの流路が連通(開放)する。これにより、採血された血液が、第1のチューブ97を流れ、採血バッグ10の血液収納部13に導入される。これにより、初流血の除去された(採取された)血液が収納された採血バッグ10が得られる。
なお、サンプリングは、採血バッグ10への採血が終了した後に行ってもよい。
図21は、本発明のクランプ(第5実施形態)の第1の状態を示す側面図、図22は、本発明のクランプ(第5実施形態)の第2の状態を示す側面図、図23は、図21中のH-H線断面図である。
図24は、本発明のクランプ(第6実施形態)の第1の状態を示す部分縦断面側面図である。
本実施形態は、固定手段を備えること以外は前記第4実施形態と同様である。
Claims (18)
- 一端に採血針、他端に血液バッグが各々接続された第1のチューブと、該第1のチューブの途中から分岐部を介して分岐した第2のチューブと、前記第1のチューブの前記分岐部よりも前記血液バッグ側の部分に設置され、破断すると遮断状態の前記第1のチューブが開通する封止部材とを備える採血器具の前記分岐部に設置されるクランプであって、
前記第2のチューブが開通しており、かつ、前記封止部材に対する破断操作が阻止されている第1の状態と、前記第2のチューブが閉塞され、かつ、前記封止部材に対する破断操作が可能である第2の状態とに切り替えることができるように構成されていることを特徴とするクランプ。 - クランプ本体と、該クランプ本体に対して回動する操作部材とを有し、
前記操作部材は、前記第2のチューブを押圧して閉塞する押圧部と、前記封止部材に対する破断操作を阻止する阻止部とを備え、
前記操作部材を前記クランプ本体に対して回動操作すると、前記第1の状態から前記第2の状態とに切り替えられる請求項1に記載のクランプ。 - 前記第1の状態から前記第2の状態に切り替えられるときには、前記破断操作が可能となるのに先立って前記第2のチューブが閉塞される請求項1または2に記載のクランプ。
- 前記阻止部は、前記第1の状態では、前記第1のチューブの前記封止部材が設置された部分を覆い、前記第2の状態では、その覆った部分から退避するよう構成されている請求項2または3に記載のクランプ。
- 前記操作部材は、その形状が板状をなすものであり、
前記阻止部は、前記操作部材の外周部から外方に向かって突出形成された突部で構成されている請求項4に記載のクランプ。 - 前記クランプ本体は、その形状が板状をなし、外周部に前記封止部材に対応する部分が欠損した欠損部が形成されたものであり、
前記操作部材は、その形状が板状をなすものであり、
前記阻止部は、前記第1の状態で前記操作部材の外周部の前記欠損部に臨む部分で構成されている請求項4に記載のクランプ。 - 前記押圧部は、前記クランプ本体に対して離間し、その離間距離が前記操作部材が回転操作されると、徐々に減少する傾斜部を有する請求項2ないし6のいずれかに記載のクランプ。
- 前記クランプ本体は、前記分岐部を固定する固定部を有する請求項2ないし7のいずれかに記載のクランプ。
- 前記操作部材は、該操作部材を回動操作する際に指がかけられる操作レバーを有する請求項2ないし8のいずれかに記載のクランプ。
- 前記操作部材の回動範囲を規制する規制手段を有する請求項2ないし9のいずれかに記載のクランプ。
- クランプ本体と、該クランプ本体に連結され、前記封止部材に対する破断操作を阻止する阻止部とを有し、
前記クランプ本体は、前記第2のチューブを押圧して閉塞する挟持部と、該挟持部を操作する操作部とを備え、
前記操作部を操作すると、前記第1の状態から前記第2の状態とに切り替えられる請求項1に記載のクランプ。 - 前記阻止部は、前記第1の状態では、前記第1のチューブの前記封止部材が設置された部分を覆い、前記第2の状態では、その覆った部分から退避するよう構成されている請求項11に記載のクランプ。
- 前記阻止部は、退避する方向と反対方向に開口した中空部を有する長尺状をなす中空部材で構成されている請求項2に記載のクランプ。
- 前記挟持部は、前記第2のチューブの外周部の一部に当接する当接部と、前記第2のチューブを介して前記当接部と対向して設けられ、前記押圧操作することによって、前記当接部に対して近接し、前記第2のチューブの外周部を押圧する押圧部とを有する請求項11ないし13のいずれかに記載のクランプ。
- 前記阻止部は、中空部を有する長尺状をなす中空部材で構成されており、
前記クランプ本体と前記中空部材とは、隣接して平行に配置されている請求項11ないし14のいずれかに記載のクランプ。 - 前記中空部材は、前記クランプ本体に対し回動可能に連結されている請求項15に記載のクランプ。
- 前記第1のチューブおよび前記第2のチューブのうちの少なくとも一方を固定する固定手段を備える請求項11ないし16のいずれかに記載のクランプ。
- 請求項1ないし17のいずれかに記載のクランプと、
一端に採血針、他端に血液バッグが各々接続された第1のチューブと、
前記第1のチューブの途中から分岐部を介して分岐した第2のチューブと、
前記第1のチューブの前記分岐部よりも前記血液バッグ側の部分に設置され、破断すると遮断状態の前記第1のチューブが開通する封止部材とを備え、
前記クランプは、前記第1のチューブの前記分岐部に設置されていることを特徴とする採血器具。
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US13/147,322 US9078611B2 (en) | 2009-02-02 | 2010-01-07 | Clamp and blood collecting device |
EP20100735686 EP2392367B1 (en) | 2009-02-02 | 2010-01-07 | Clamp and blood collecting device |
JP2010548451A JP5430586B2 (ja) | 2009-02-02 | 2010-01-07 | クランプおよび採血器具 |
BRPI1007942-4A BRPI1007942B1 (pt) | 2009-02-02 | 2010-01-07 | Grampo e dispositivo de coleta de sangue |
SG2011055308A SG173486A1 (en) | 2009-02-02 | 2010-01-07 | Clamp and blood collecting device |
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CN102292116B (zh) | 2014-04-23 |
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EP2392367A4 (en) | 2012-11-07 |
SG173486A1 (en) | 2011-09-29 |
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