JP5187628B2 - One-handed breast pump - Google Patents

Description

  The present invention relates to a single-handed breast pump, and more particularly to a single-handed breast pump for small experimental animals such as mice and rats.

  Conventionally, mice and rats have been used in various ways as experimental animals, and blood biochemical tests have been used very often as basic information including drug efficacy studies.

  In addition, genetic traits and parental dietary effects on the child are also investigated. At this time, not only blood but animal milk that is considered to have a large effect on the child is also considered an important evaluation sample. .

International Publication WO01 / 067064

  However, conventionally, although the shape of the teat cup relating to the milking mouth has been devised, there is no simple milking machine for small experimental animals, and it has not been possible to easily collect animal milk.

  In fact, the milking machine based on the technique disclosed in Patent Document 1 has a device that is over 1 million yen and is expensive and large, and secondly, suction is steady and negative pressure increases. However, there is a problem that proper milking cannot be realized from this point of view, because blood comes out from the nipple and proper milking cannot be realized, and thirdly, suction force differs depending on how the teat cup is pressed. .

  Above all, in the experiment for evaluating animal milk, it was desired that milking work can be performed quickly and easily because the milking amount is small although the number of mother animals is large.

  This invention is made | formed in view of the above, Comprising: It aims at providing the breast pump for mice | mouths or rats which can be introduce | transduced easily and raise workability | operativity.

In order to achieve the above object, the one-handed breast pump according to claim 1 has a sealing cap, a transparent Eppendorf tube with a scale that enables grasping of the milking amount , a stopper, and three A single-handed breast pump for a mouse or a rat, including a transparent milking tube, a negative pressure adjusting tube, and an exhaust tube, in the axial direction of the plug body drilled is inserted into the hole and electrically connected to the respective Eppendorf the tube, the other end with one end of milking tube a L-shaped tube to the milk deep plugged trace amounts plug body easily collect in Eppendorf tubes under side nipples The exhaust pipe is also an L-shaped pipe with one end inserted into the plug and the other end connected to a suction pump. The negative pressure adjusting pipe is a straight pipe with one end plugged. the other end is inserted into the body to protrude above the axial direction than both L-shaped tube Has stretched to hold the milking tube in the middle finger and thumb while workers grip while or pinch the Eppendorf tube with one hand, Ategai the other end of the milking tube nipples of mice or rats, negative pressure by the index finger The other end of the adjustment tube is opened and closed by tapping so that the suction force can be adjusted, and milked animal milk is sealed with a sealing cap to improve handling .

In other words, the invention according to claim 1 enables the suction adjustment with the index finger while grasping the milking state while holding the mouse or rat with one hand and holding the sample tube with the other hand. Here, since the milking tube is bent in an L shape and faces outward, workability is improved from the point of gripping and from the point of milking. In addition, the negative pressure adjusting pipe is popped out, and conversely, the other two pipes are bent in an L shape, so that tapping with the index finger is facilitated.
Moreover, the milking amount can be easily grasped by the scale . Therefore, although the amount of colostrum is small and the amount of milk gradually increases, changes in milking amount of the same mother can be easily grasped.
Moreover, since it is transparent, visibility is improved and workability | operativity is improved.
Eppendorf tubes are widely used, and can be capped and stored refrigerated or frozen. In addition, if the L-shaped tube is generally L-shaped, the radius of curvature is not limited, and the axial direction at one end and the axial direction at multiple ends may differ by about 90 °.

The one-handed milking machine according to claim 2 is characterized in that, in the one-handed milking machine according to claim 1, the other end of the milking tube is expanded in diameter and chamfered. To do.

That is, the invention according to claim 2 enables smooth and safe milking without narrowing the root of the nipple by negative pressure.

  ADVANTAGE OF THE INVENTION According to this invention, the breast pump for mice | mouths or rats which can be introduce | transduced easily and improves workability | operativity can be provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view of a one-handed breast pump of the present invention. As illustrated, the breast pump 1 includes an Eppendorf tube 2, a stopper 3, a milking tube 4, an exhaust tube 5, a negative pressure adjusting tube 6, and a cap 7. FIG. 2 shows a front view or a plan view of each part.

  The Eppendorf tube 2 is a tapered transparent plastic container with a cap 7 (FIGS. 2a and 2b). Its capacity is 1.5 cc, and the side is graduated so that it can be understood how much milking has been achieved. The outer diameter is about 9 mm, and the length is 39 mm. With the cap 7, milked animal milk can be immediately sealed to improve handling.

  The plug 3 is made of silicon and has a truncated cone shape so that the Eppendorf tube 2 can be easily plugged (FIGS. 2c and 2d). The small diameter is 9 mm, the large diameter is 10 mm, and the height is about 10 mm. The stopper 3 is provided with three holes 8 into which the milking pipe 4, the exhaust pipe 5 and the negative pressure adjusting pipe 6 are inserted in the axial direction (FIG. 2d). A state in which three tubes are inserted is shown in FIG.

  The milking tube 4, the exhaust tube 5, and the negative pressure adjusting tube 6 are glass tubes each having an outer diameter of 3 mm and an inner diameter of 1.5 mm (FIG. 2i), and the exhaust tube 5 and the milking tube 4 are L-shaped bent halfway. A tube. The milking tube 4 has an end portion on the side applied to the nipple expanded to a diameter of 5 mm, thereby realizing smooth milking (FIGS. 2e and 2h). The tip is chamfered so that the nipple is not damaged.

  The exhaust pipe 5 is inserted into the plug 3 so that the L-shape is opposite to the milking pipe 4 (FIG. 3), and one side is joined to a suction pump (not shown) by a rubber pipe. (Figure 2f). In addition, a water supply type aspirator can be used for a pump, and an apparatus structure can be simplified.

  The negative pressure adjusting tube 6 is a straight tube, and suction strength is applied with an index finger (FIG. 2g). When sucked at a constant pressure, the nipple is congested and sometimes bleeds. In order to prevent this from happening, the operator applies negative pressure strength by tapping and milks while grasping the state of the nipple and milk output. FIG. 4 illustrates the state of the handle.

  The axial lengths of the milking tube 4, the exhaust tube 5, and the negative pressure adjusting tube 6 are 47 mm, 18 mm, and 25 mm, respectively, and the milking tube 4 is inserted deeply into the stopper 3 and collected under the sample tube. It is easy. This corresponds to the small amount of milk. On the other hand, the negative pressure adjusting tube 6 protrudes upward to facilitate tapping with an index finger.

  When working, lift the mouse with the left hand, pinch the milking tube 4 with the middle finger and thumb of the right hand, place it on the nipple, and tap the head (tip) of the negative pressure adjustment tube 6 with the index finger of the right hand to see how the milk comes out. Milking while watching. When milking is finished, the stopper 3 is removed and the cap 7 is put on. Thus, the milking machine 1 enables efficient and simple milking without damaging the nipple of the mouse.

  According to the present invention, if animal milk itself can be stored and fed to a cub, component analysis as a biological sample can be performed.

It is a front view of the one hand holding breast pump of the present invention. A front view or a plan view of each part is shown. It is the figure which showed a mode that each pipe | tube was inserted in the stopper. It is the figure which showed a mode that it had the milking machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Milking machine 2 Eppendorf tube 3 Plug 4 Milking pipe 5 Exhaust pipe 6 Negative pressure adjustment pipe 7 Cap 8 Hole

Claims (2)

A single-handed breast pump for a mouse or a rat including a transparent Eppendorf tube with a sealing cap and a scale that allows grasping the milking amount , a stopper, and three tubes,
The three tubes are a transparent milking tube, a negative pressure adjusting tube, and an exhaust tube, which are inserted into holes pierced in the axial direction of the plug body, respectively, and are electrically connected to the inside of the Eppendorf tube ,
The milking tube is an L-shaped tube, one end of which is deeply inserted into the plug, making it easy to collect a small amount of milk below the Eppendorf tube, and the other end is applied to the nipple.
The exhaust pipe is also an L-shaped pipe with one end inserted into the plug and the other end connected to a suction pump.
The negative pressure adjusting tube is a straight tube, one end is inserted into the plug, and the other end is extended so as to protrude upward in the axial direction from both L-shaped tubes,
Operator holds the milking tube in the middle finger and thumb while knob or while gripping the Eppendorf tube with one hand, Ategai the other end of the milking tube nipples mouse or rat, the other end of the negative pressure adjusting tube by index finger The suction force can be adjusted by opening and closing by tapping ,
A one-handed milking machine, wherein milked animal milk is sealed with a sealing cap to improve handling . The said other end of a milking tube is diameter-expanded and the chamfering process is made | formed, The one-handed milking machine of Claim 1 characterized by the above-mentioned.

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