CN107518905B

CN107518905B - Baby heel hemostix

Info

Publication number: CN107518905B
Application number: CN201710629418.2A
Authority: CN
Inventors: 胡超宇
Original assignee: Puang Hangzhou Medical Technology Co ltd
Current assignee: Puang Hangzhou Medical Technology Co ltd
Priority date: 2017-07-28
Filing date: 2017-07-28
Publication date: 2023-11-14
Anticipated expiration: 2037-07-28
Also published as: CN107518905A

Abstract

The invention discloses a baby heel hemostix, wherein a sliding block is fixed by a trigger key in an initial state and is locked by a safety bolt, and an elastic piece is in a state of storing elastic potential energy; when the baby heel cutting and blood sampling device is used, the safety bolt is pulled out, the locking of the sliding block can be released by slightly pressing the trigger key, the elastic potential energy stored by the elastic piece is released instantly, the elastic potential energy drives the sliding block to slide in the sliding cavity and drives the connecting rod to rotate by taking the rotating pin as the center, the second sliding pin slides in the arc-shaped sliding groove, the third sliding pin on the driving seat slides to the lower end from the upper end of the second sliding groove and returns to the upper end, a reciprocating action is formed, the blade protrudes out of the blade outlet once in an arc-shaped track, and the baby heel cutting and blood sampling action is realized. The structure comprises fewer structural components, the transverse movement of the sliding block is converted into the arc-shaped running track of the blade through the connecting rod, and the structure has the technical advantages of simple structure principle, lower cost and precisely controllable depth and width of the blade cutting opening, and is beneficial to the large-scale popularization and use of medical institutions.

Description

Baby heel hemostix

Technical Field

The invention relates to the technical field of medical equipment, in particular to a baby heel hemostix.

Background

The hemostix is used as a common medical instrument and is widely applied to medical institutions for blood collection. The current common hemostix has two types, namely a needling type hemostix and a blade cutting type hemostix. The acupuncture is mostly used for fingertip blood sampling, and is mostly used for adults or older children due to a certain pain. The blade is used for collecting blood of the neonate heel because of clear pain. At present, a plurality of commonly produced infant heel hemostix exist in the market, most of the infant heel hemostix is produced by foreign manufacturers, and the cost is high; some domestic manufacturers also have the defect of high cost due to complex structure. Therefore, the popularity of the infant heel hemostix needs to be improved, and it is necessary to design an infant heel hemostix with simple structure, low cost and complete compliance with the usage standard, so as to improve the popularity of the infant heel hemostix.

Disclosure of Invention

The invention aims to solve the technical problem of providing the infant heel hemostix which has a simple structure and low cost and completely meets the use standard.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: an infant heel hemostix comprising at least:

a housing having a trigger key socket, a safety latch socket, and a blade outlet thereon;

the sliding device comprises a sliding block, a sliding cavity and a sliding mechanism, wherein the sliding cavity is transversely arranged in the shell and is suitable for the sliding block, and an elastic piece compressed along the sliding direction is arranged between the sliding block and one end of the sliding cavity; the trigger key socket is provided with a trigger key for releasing the sliding block, and the safety plug socket is provided with a safety plug for locking the trigger key;

the connecting rod comprises a connecting rod body, a first sliding pin arranged at one end of the connecting rod body, a second sliding pin arranged at the other end of the connecting rod body and a rotating pin arranged between the first sliding pin and the second sliding pin; the sliding block is provided with a first sliding groove which is matched with the first sliding pin, and the sliding direction of the first sliding pin in the first sliding groove is vertical to the sliding direction of the sliding block in the sliding cavity; the shell is internally provided with a pin hole which is matched with the rotating pin and an arc chute which is used for accommodating the second sliding pin and takes the rotating pin as a center to slide in an arc shape;

the cutter holder, the one end and the second slip round pin of cutter holder are articulated, and the other end fixedly connected with blade, be provided with the third slip round pin on the cutter holder in the position that is close to the blade, be equipped with on the casing in the position that is close to the blade export with spout second that the third slip round pin suited, the slip direction of third slip round pin in spout second with the slip direction of slider is perpendicular.

In a preferred embodiment, the trigger key comprises a pressing part and an inserting part, the inserting part is inserted into the shell through a trigger key socket and hinged with the shell, and a trigger opening for inserting the inserting part of the accommodating part is arranged at the upper part of the sliding block.

In a preferred embodiment, the insertion part is provided with a notch, and a safety cavity for accommodating insertion of the safety plug is formed between the notch and the shell in a state that the insertion part is connected with the trigger port in a matching manner.

In a preferred embodiment, the front side of the insertion part is a bevel, and the connection position of the bevel and the bottom surface forms an arc transition part.

In a preferred embodiment, the safety bolt comprises a bolt body, wherein one end of the bolt body is provided with a locking part for being matched and inserted into the safety cavity, and the other end of the bolt body is provided with an inserting and pulling part.

In a preferred embodiment, a recess is provided between the plug portion and the plug body.

In a preferred embodiment, at least one side of the locking part is provided with a locking part, the locking part comprises a locking piece with elasticity, one end of the locking piece is fixedly connected with the bolt body, and the other end of the locking piece is provided with an arc-shaped protrusion extending downwards from the lower surface of the locking piece.

In a preferred embodiment, the sliding block comprises a sliding block body, wherein the inside of the sliding block body is of a hollow structure, and an elastic connecting part is arranged in the sliding block body.

In a preferred embodiment, the elastic member is a compression spring, and the compression spring is located between the elastic connection portion and the end portion of the sliding cavity on the side where the safety catch is located.

In a preferred embodiment, the elastic member is a tension spring, and the tension spring is located between the elastic connection portion and an end of the sliding cavity away from the side where the safety catch is located.

According to the infant heel hemostix, the sliding block is fixed in a state to be triggered by the trigger key in an initial state and is locked in the state by the safety lock, and the elastic piece is in a state of storing elastic potential energy in the state to be triggered; when the baby heel cutting and blood sampling device is used, the safety bolt is pulled out, the triggering key can be slightly pressed to unlock the triggering key to the sliding block, the elastic potential energy stored by the elastic piece is instantly released, the elastic potential energy drives the sliding block to slide from one end to the other end in the sliding cavity, in the process, the sliding block drives the connecting rod to rotate by taking the rotating pin as the center, the second sliding pin slides from one end to the other end of the arc-shaped sliding groove, so that the third sliding pin on the knife holder slides from the upper end to the lower end of the second sliding groove and returns to the upper end of the second sliding groove, a reciprocating action is formed, and accordingly the knife blade stretches out from the knife blade outlet once in an arc-shaped track, and the baby heel cutting and blood sampling action is realized.

Compared with the prior art, the infant heel hemostix with the structure has the technical advantages that the structure is fewer in structural parts, the transverse movement of the sliding block is converted into the arc-shaped running track of the blade through the connecting rod, the structure is simple in principle, the cost is low, the depth and the width of the cutting opening of the blade can be accurately controlled, and the infant heel hemostix is favorable for large-scale popularization and use of medical institutions.

Drawings

FIG. 1 is a schematic view showing the external structure of the infant heel hemostix of the present embodiment;

FIG. 2 is a schematic view of the external structure of the housing of the present embodiment;

FIG. 3 is a schematic view showing an exploded status structure of the infant heel hemostix of the present embodiment;

FIG. 4 is a schematic diagram of the trigger key according to the present embodiment;

FIG. 5 is a schematic view of a safety plug according to the present embodiment;

FIG. 6 is a schematic view of a slider according to the present embodiment;

FIG. 7 is a schematic view of a connecting rod according to the present embodiment;

FIG. 8 is a schematic view of the tool apron according to the present embodiment;

FIG. 9 is a schematic view showing a state I of the infant heel hemostix of the present embodiment;

fig. 10 is a schematic structural view of a state ii of the infant heel hemostix of the present embodiment;

FIG. 11 is a schematic view showing a state III of the infant heel hemostix of the embodiment;

FIG. 12 is a schematic view showing a state IV of the infant heel hemostix of the embodiment;

fig. 13 is a schematic structural view of the infant heel hemostix of the present embodiment in state v;

fig. 14 is a schematic view showing a structure of a state vi of the infant heel hemostix of the present embodiment.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be a communication between the interiors of two elements; may be directly or indirectly through an intermediate medium, and the specific meaning of the terms in the present invention will be understood by those skilled in the art in specific cases.

As shown in fig. 1 to 3, the infant heel hemostix of the present embodiment includes at least a housing 10, a trigger key 20 and a safety latch 30. Wherein the shell 10 comprises an upper shell and a lower shell which are buckled with each other, a hollow cavity structure is formed between the upper shell and the lower shell, and at least 2 groups of bolt assemblies 19 which are matched with each other and are composed of bolts and jacks are arranged between the upper shell and the lower shell.

In this embodiment, the lower part of the housing 10 is provided with a blade outlet 11, the upper part is provided with a trigger key jack 12, and the front side corresponding to the trigger key jack 12 is provided with a safety latch jack 13. Further, a lateral sliding cavity 15 is arranged in the housing near the upper part, and a sliding block 40 sliding laterally is arranged in the sliding cavity 15. As shown in fig. 6, the slider 4 includes a slider body 41, and the inside of the slider body 41 is a hollow structure and has a hollow cavity 42; the slider body 41 is provided with an elastic connection portion 44 and a first sliding chute 45, wherein the sliding direction of the first sliding chute is perpendicular to the sliding direction of the sliding cavity 15. The upper part of the slider body 41 is provided with a trigger opening 43.

Further, an elastic member 50 is disposed between the slider 40 and the end of the sliding cavity 15, and the elastic member 50 may be a compression spring as shown in fig. 8-13 or a tension spring (not shown). If a compression spring is selected for the resilient member 50, the compression spring is located between the slide 40 and the left end of the sliding chamber 15 (the end with the safety catch). If a tension spring is selected for the resilient member 50, the tension spring is located between the slider 40 and the right end of the sliding chamber 15 (the end remote from the safety catch).

In a preferred embodiment, as shown in fig. 4, the trigger key 20 of the present embodiment includes a pressing portion 21 and an insertion portion 22, and preferably, a hollowed-out hole 27 is formed on the pressing portion 21, so as to save material cost while meeting the use requirement.

Further, in the present embodiment, the insertion portion 22 is inserted into the housing 10 from the trigger key socket 12 and hinged to the housing 10, and as shown in fig. 3 and 4, a hinge pin 26 is provided on the insertion portion 22, and a hinge hole 14 is provided in the corresponding housing 10. Preferably, the front side of the insertion portion 22 is a slope 23, and an arc-shaped transition portion 24 is formed at a position where the slope 23 is connected to the bottom surface.

Further, the insertion portion 22 is provided with a notch 25, as shown in fig. 8, and a safety cavity for accommodating insertion of the safety plug 30 is formed between the notch 25 and the upper side of the inner cavity of the housing 10 in a state in which the insertion portion 22 is connected with the trigger opening 43 in a matching manner.

In a preferred embodiment, as shown in fig. 5, the safety plug 30 of the present embodiment includes a plug body 31, one end of the plug body 31 is provided with a locking portion 32 for mating insertion with the safety cavity, and the other end is provided with an insertion and extraction portion 36. Preferably, a notch 37 is provided between the plug portion 36 and the plug body 31, the notch 37 serving to facilitate finger gripping of the safety plug 30 for removal from the safety plug receptacle.

Further, at least one side of the locking portion 32 of the present embodiment is provided with a locking portion, the locking portion includes a locking piece 35 having elasticity, one end of the locking piece 35 is fixedly connected with the bolt body 31, and the other end is provided with an arc-shaped protrusion 34 extending downward from the lower surface of the locking piece 35, where the arc-shaped protrusion 34 has an effect that, in a state that the safety catch 30 locks the trigger key, the arc-shaped protrusion 34 is buckled with an inner edge of the housing to fix the position of the safety catch. During the process of withdrawing the safety catch, the arc-shaped protrusion 34 is unlocked from the inner edge of the housing based on the elastic action of the locking piece 35.

A preferred embodiment, as shown in fig. 7, the link 60 of the present embodiment includes a link body 61, a first slide pin 62 provided at one end of the link body 61, a second slide pin 64 provided at the other end of the link body 61, and a rotation pin 63 provided between the first slide pin 62 and the second slide pin 64. The first sliding pin 62 is connected with the first sliding groove 45 on the sliding block 40 in a matching manner, and it should be noted that the first sliding pin 62 slides in the first sliding groove 45 along the sliding direction and rotates around the axis of the first sliding pin, and the moving track of the first sliding pin 62 in the first sliding groove 45 is a combined motion of linear sliding and rotating around the axis of the first sliding pin.

Further, as shown in fig. 3, the housing 10 is provided therein with a pin hole 16 corresponding to the rotation pin 63 and an arc chute 17 for accommodating the second slide pin 64 and sliding in an arc shape centering on the rotation pin 63. It should be noted that the movement of the second slide pin 64 in the arc chute 17 is a combination of arc sliding and rotational movement about its own axis.

In a preferred embodiment, as shown in fig. 3 and 8, the infant heel hemostix of the present embodiment further includes a cutter holder 70, wherein one end of the cutter holder 70 is hinged to the second sliding pin 64, and the other end is fixedly connected with a blade 71. The cutter seat 70 is provided with a third sliding pin 72 at a position close to the blade 71, correspondingly, a second sliding groove 18 corresponding to the third sliding pin 72 is provided at a position close to the blade outlet 11 in the housing 10, preferably, the second sliding groove 18 is provided in a vertical direction, and a sliding direction of the third sliding pin 72 in the second sliding groove 18 is perpendicular to a sliding direction of the sliding block 40. The movement of the third slide pin 72 in the second chute 18 is a combined movement of sliding in the sliding direction and rotation about its own axis.

Fig. 9 is a schematic structural view of the infant heel hemostix in the state i, in which the end of the trigger key where the arc-shaped transition portion 24 is located in the trigger opening 43 of the slider body 41, and the locking portion 32 of the safety catch 30 is located in the safety cavity. Wherein the inclined plane 23 of the trigger key is vertical or nearly vertical, and a certain displacement space is arranged between the sliding block and the left limit position.

Fig. 10 is a schematic view showing a state ii of the infant heel hemostix of the present embodiment, in which the safety catch has been pulled out, and the trigger key is released from locking the slider by a light press of the trigger key. In the process of pressing the trigger key, based on the action of the inclined plane, the sliding block moves leftwards for a certain displacement, and the elastic potential energy of the elastic piece is further increased. Meanwhile, the arc transition part is convenient for the trigger key to separate from the sliding block. In the process of pressing the trigger key to change from the state I to the state II, the operation is convenient, and after the safety plug is pulled out, the touch locking action can be realized by pressing the trigger key by one finger.

Fig. 11 is a schematic structural view of the infant heel hemostix of the present embodiment in a state iii in which the slider has moved a certain distance to the left, the blade has also been extended a certain length from the blade outlet, and the blade has now contacted and scored the infant heel.

Fig. 12 is a schematic view showing a state iv of the infant heel hemostix of the present embodiment, which is a lower limit position of the blade, and the depth of the incision is controlled by the lower limit position. In this example, the blade gauge has two types, one for premature infants, the blade cutting forms a knife edge of 0.85mm in depth and 1.75mm in width; the other is suitable for newborns, and the depth of a knife edge formed by cutting with a blade is 1mm and the width is 2.5mm. It should be noted that the above two specifications are only preferred specifications, and have corresponding international and domestic standards for the depth and width of the knife edge, so long as the corresponding standards are satisfied. The specification of the blade and the lower limit position of the blade determine the standardization of cutting, and the difference is not generated due to the different technologies of blood takers.

Fig. 13 is a schematic view showing a state v of the infant heel hemostix of the present embodiment, in which the slider continues to slide rightward, and the blade moves toward the inside of the housing after passing through the lower limit position.

Fig. 14 is a schematic view showing a state vi of the infant heel hemostix of the present embodiment, in which the slider has slid to the right limit position and the blade is also retracted into the housing and held inside the housing.

In summary, the foregoing description is only of the preferred embodiments of the invention, and is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims

1. An infant heel hemostix, comprising at least:

the cutter seat, one end of the cutter seat is hinged with the second sliding pin, the other end of the cutter seat is fixedly connected with a blade, a third sliding pin is arranged on the cutter seat close to the blade, a second sliding groove which is adaptive to the third sliding pin is arranged on the shell close to the blade outlet, and the sliding direction of the third sliding pin in the second sliding groove is perpendicular to the sliding direction of the sliding block;

the trigger key comprises a pressing part and an inserting part, the inserting part is inserted into the shell through a trigger key socket and is hinged with the shell, and a trigger opening for inserting the inserting part of the accommodating part is arranged on the upper part of the sliding block.

2. The infant heel hemostix of claim 1 wherein the insertion portion defines a notch and wherein the insertion portion is matingly coupled to the trigger opening to define a safety cavity therebetween for receiving insertion of the safety plug.

3. The infant heel hemostix of claim 2 wherein the front side of the insertion portion is beveled and the location where the beveled connects to the bottom surface forms an arcuate transition.

4. A baby heel hemostix according to claim 2 or 3, wherein the safety catch comprises a catch body having a locking portion at one end for mating insertion with the safety cavity and a plug portion at the other end.

5. The infant heel hemostix of claim 4 wherein a recess is provided between the plug portion and the plug body.

6. The infant heel hemostix according to claim 4, wherein at least one side of the locking part is provided with a locking part, the locking part comprises a locking piece with elasticity, one end of the locking piece is fixedly connected with the bolt body, and the other end is provided with an arc-shaped protrusion extending downwards from the lower surface of the locking piece.

7. The infant heel hemostix according to any one of claims 1-3 or 5-6, wherein the slider comprises a slider body, the interior of the slider body being of hollow construction, the slider body being provided with an elastic connection.

8. The infant heel hemostix of claim 7 wherein the resilient member is a compression spring located between the resilient connecting portion and the end of the sliding chamber on the side of the safety catch.

9. The infant heel hemostix of claim 7 wherein the resilient member is a tension spring located between the resilient connecting portion and the end of the sliding chamber distal from the side of the safety catch.