CN109893142B - Flexible blood sampling device and rigid blood sampling device - Google Patents
Flexible blood sampling device and rigid blood sampling device Download PDFInfo
- Publication number
- CN109893142B CN109893142B CN201910303350.8A CN201910303350A CN109893142B CN 109893142 B CN109893142 B CN 109893142B CN 201910303350 A CN201910303350 A CN 201910303350A CN 109893142 B CN109893142 B CN 109893142B
- Authority
- CN
- China
- Prior art keywords
- needle
- tail
- straight
- protection tube
- holding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010241 blood sampling Methods 0.000 title claims abstract description 25
- 239000008280 blood Substances 0.000 claims abstract description 111
- 210000004369 blood Anatomy 0.000 claims abstract description 111
- 238000005452 bending Methods 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 4
- 210000003462 vein Anatomy 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 8
- 230000035515 penetration Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 12
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Abstract
The invention discloses a flexible blood sampling device and a rigid blood sampling device. The flexible blood sampling device comprises a needle sleeve, a blood sampling needle and a straight needle, wherein the needle sleeve comprises a needle holding part, a connecting part and a tail needle part which are sequentially connected. The needle holding component is fixed on the blood taking needle; the tail needle component is fixed on the straight needle; the connecting part is connected with and communicated with the blood taking needle and the straight needle; the connecting component is provided with a head end and a tail end along the axial direction, the head end is connected with the blood taking needle, the tail end is connected with the straight needle, and the tail end can rotate relative to the head end. The head end and the tail end of the rigid blood sampling device form an included angle which is different from zero. By such arrangement, the axial acting force applied to the blood taking needle along the blood taking needle is reduced, and the risk caused by the deep penetration of the vein is reduced. Simultaneously, the operation to blood taking needle and straight needle has been made things convenient for through setting up needle holder portion and connecting portion, needle holder portion, connecting portion and tail needle portion connect gradually for connecting portion are less likely to break away from blood taking needle and straight needle and make blood sampling process safer.
Description
Technical Field
The present invention relates to a flexible lancing device and a rigid lancing device.
Background
Existing blood sampling devices, such as intravenous needles, generally include a lancet for puncturing a vein of a human body, a straight needle for puncturing a vacuum blood collection tube, and a needle housing for manipulating the lancet and the straight needle, and in actual manipulation, a medical worker needs to hold the needle housing first, then hold the needle housing after puncturing the lancet into the human body, and then puncture the straight needle into the vacuum blood collection tube. However, during the process of inserting the straight needle into the vacuum blood collection tube, the vacuum blood collection tube applies a force parallel to the axial direction of the straight needle to the straight needle, and the force is transmitted to the blood collection needle through the needle sleeve, because the blood collection needle is coaxial with the straight needle, the force can be fully applied to the blood collection needle, so that the blood collection needle moves along the axial direction and penetrates deeper into a vein, and the vein is at risk of being punctured.
Disclosure of Invention
The invention aims to solve the technical problem that in the prior art, the force applied to a straight needle can be completely applied to the blood taking needle along the axial direction of the blood taking needle, and provides a flexible blood taking device and a rigid blood taking device.
The invention solves the technical problems by the following technical scheme:
the flexible blood sampling device comprises a needle sleeve, a blood sampling needle and a straight needle, wherein the needle sleeve comprises a needle holding part, a connecting part and a tail needle part which are sequentially connected; the needle holding part is sleeved and fixed on the blood taking needle; the tail needle part is sleeved and fixed on the straight needle; the connecting part is connected with and communicated with the blood taking needle and the straight needle; the connecting part is provided with a head end connected with the needle holding part and a tail end connected with the tail needle part along the axial direction, and the head end is sleeved on the blood taking needle; the trailing end is rotatable relative to the leading end.
In this embodiment, the trailing end is rotatable relative to the leading end. When the straight needle is required to be inserted into the vacuum blood collection tube, the connecting part is required to be bent, so that the head end and the tail end form an included angle which is different from zero, and the head end and the tail end are respectively connected with the blood taking needle and the straight needle, so that the axes of the blood taking needle and the straight needle also form an included angle which is different from zero. When the straight needle receives a force along the axial direction of the straight needle, the force is decomposed into a component force parallel to the axial direction of the blood taking needle and a component force perpendicular to the axial direction of the blood taking needle, so that the force along the axial direction of the blood taking needle received by the blood taking needle is reduced, and the risk caused by too deep vein penetration is reduced. Simultaneously, the operation to blood taking needle and straight needle has been made things convenient for through setting up needle holder portion and connecting portion, needle holder portion, connecting portion and tail needle portion connect gradually for connecting portion are less likely to break away from blood taking needle and straight needle and make blood sampling process safer.
Preferably, the connecting part comprises a bending body and two connecting bodies connected to the bending body, one connecting body is connected with the blood taking needle to form the head end, and the other connecting body is connected with the straight needle to form the tail end; the bending body is made of flexible materials.
In this scheme, through setting up body and the connector of buckling, the body of buckling rolls over and drives head end and tail end and form the contained angle to make the connection body can be more firm connect in straight needle and blood taking needle, prevent to drop and cause danger.
Preferably, the bending body is a corrugated pipe.
Preferably, the needle holding part comprises a needle holding sleeve and a needle holding protection tube; the needle holding sleeve is sleeved and fixed on the blood taking needle, one end of the needle holding protection tube is fixed on the needle holding sleeve, and the other end of the needle holding protection tube extends towards the direction close to the straight needle;
the tail needle part comprises a tail needle sleeve and a tail needle protection tube; the tail needle sleeve is sleeved and fixed on the straight needle, one end of the tail needle protection tube is fixed on the tail needle sleeve, and the other end of the tail needle protection tube extends towards the direction close to the blood taking needle;
the connecting part is arranged in the needle holding protection tube and the tail needle protection tube.
In this scheme, through setting up needle protection tube and tail needle protection tube, the both ends of connecting blood taking needle and straight needle of connecting portion have been enclosed, have prevented to lead to the outer spouting of blood because of the both ends connection of connecting portion is inseparable.
Preferably, the tail needle protection tube and the needle holding protection tube are overlapped and enclosed to form a cavity for accommodating the connecting part.
In this scheme, the inside of cavity is arranged in to connecting portion for connecting portion keep apart with the external world, has strengthened the stability of connecting portion.
Preferably, a gap exists between the tail needle protection tube and the needle holding protection tube.
In this scheme, the tail needle protection tube has the clearance with the needle protection tube to make the needle protection tube can rotate in certain limit relative to the tail needle protection tube.
Preferably, the tail needle protection tube is sleeved on the needle holding protection tube, a through groove is formed in the outer peripheral surface of the tail needle protection tube, the through groove is communicated with an opening, far away from the straight needle, of the tail needle protection tube, and the wall surface of the through groove is used for propping against the outer peripheral surface of the needle holding protection tube.
In this scheme, when the axis of head end and afterbody of connecting portion formed a not zero contained angle, the axis of blood taking needle also formed a not zero contained angle with the axis of straight needle, the axis of tail needle protection tube and the axis of holding needle protection tube also formed a not zero contained angle with it, and at this moment, the outer peripheral face of holding needle protection tube can support in logical groove realizes holding needle protection tube and tail needle protection tube firm cooperation.
Preferably, the flexible lancing device further comprises a protective cap;
the protective cover is sleeved on the straight needle and fixedly connected to the tail needle part, a concave part is arranged on the outer wall surface of the protective cover, the concave part is used for being attached to the arm surface of an arm, and the tangential surface extends from one end surface of the protective cover, which is close to the blood taking needle, to one end surface of the protective cover, which is far away from the blood taking needle.
In this scheme, through set up the sunk part on the safety cover for the safety cover can laminate the arm face of human arm, thereby when making the safety cover through the operation safety cover operation straight needle, the safety cover has a firm holding surface, and then makes the operation more firm.
Preferably, the wall surface of the concave part is an arc surface, and the arc surface is used for being matched with the arm surface of the arm.
In this scheme, through setting up concave part into the sunken arc surface of inside for the arm face of laminating arm that the safety cover can be better.
The rigid blood sampling device comprises a needle sleeve, a blood sampling needle and a straight needle, and is characterized in that the needle sleeve comprises a needle holding part, a connecting part and a tail needle part which are connected in sequence; wherein the needle holding part is sleeved and fixed on the blood taking needle; the tail needle part is sleeved and fixed on the straight needle; the connecting part is connected with and communicated with the blood taking needle and the straight needle; the connecting part is provided with a head end connected with the needle holding part and a tail end connected with the tail needle part along the axial direction, the head end is sleeved on the blood taking needle, and the tail end is sleeved on the straight needle; the axis of the head end and the axis of the tail end form an included angle which is different from zero.
Preferably, the included angle is 45-90 degrees.
Preferably, the included angle is 90 degrees.
In this scheme, when the contained angle is ninety degrees, the axial direction of blood taking needle can not be acted on to the axial effort that is on being on straight needle in a parallel with straight needle at all to make blood sampling process safer.
The invention has the positive progress effects that:
through the rotatable or setting that forms an contained angle that is not zero of head end and tail end for the axial effort along the blood taking needle that the blood taking needle received reduces, has reduced the risk because of penetrating vein depths and bring. Simultaneously, the operation to blood taking needle and straight needle has been made things convenient for through setting up needle holder portion and connecting portion, needle holder portion, connecting portion and tail needle portion connect gradually for connecting portion are less likely to break away from blood taking needle and straight needle and make blood sampling process safer.
Drawings
Fig. 1 is a schematic cross-sectional view of embodiment 1 of the present invention in a first state.
Fig. 2 is a schematic cross-sectional view of embodiment 1 in a second state.
Fig. 3 is a schematic perspective view of embodiment 1 in a first state.
Fig. 4 is a schematic cross-sectional view of embodiment 2 of the present invention.
Description of the reference numerals
Blood taking needle 100
Straight needle 200
Needle holder 300
Needle-holding sleeve 310
Needle holding protective tube 320
Connection part 400
Head end 401
Tail end 402
Bending body 410
Connector 420
Tail needle portion 500
Tail needle sleeve 510
Tail needle protection tube 520
Through groove 521
Protective cover 600
Sealing sleeve 700
Recessed portion 610
First state 10
Second state 20
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 to 3, the flexible lancing device according to the present invention includes a needle sheath, a lancet 100 and a straight needle 200. The blood taking needle 100 is used for puncturing the skin of a patient to puncture veins for taking blood, the straight needle 200 is connected and communicated with the blood taking needle 100, the blood taking needle 100 is used for puncturing a sealing layer on a vacuum blood taking tube, and blood in the blood taking needle 100 is conveyed into the vacuum blood taking tube, so that blood taking work of the patient is realized.
The needle sheath includes a needle holding portion 300, a connecting portion 400, and a tail needle portion 500, which are sequentially connected.
The needle holder 300 is sleeved and fixed to the lancet 100; the tail needle part 500 is sleeved and fixed on the straight needle 200; the connection part 400 connects and communicates the lancet 100 and the straight needle 200; the connecting part 400 is provided with a head end 401 connected with the needle holding part 300 and a tail end 402 connected with the tail needle part 500 along the axial direction, the head end 401 is sleeved on the blood taking needle 100, and the tail end 402 is sleeved on the straight needle 200; the trailing end 402 is rotatable relative to the leading end 401.
The tail end 402 may rotate relative to the head end 401, that is, the axes of the head end 401 and the tail end 402 may form an included angle different from zero, when the straight needle 200 is required to penetrate into the vacuum blood collection vessel, the connecting portion 400 is required to be bent, so that the head end 401 and the tail end 402 form an included angle different from zero, and the head end 401 and the tail end 402 are respectively connected with the blood taking needle 100 and the straight needle 200, so that the axes of the blood taking needle 100 and the straight needle 200 also form an included angle different from zero. When the straight needle 200 receives a force in the axial direction of the straight needle 200, the force is decomposed into a force parallel to the axial direction of the lancet 100 and a force perpendicular to the axial direction of the lancet 100, so that the force applied to the lancet 100 in the axial direction of the lancet 100 is reduced, and the risk of penetrating deep veins is reduced. Meanwhile, the needle holding part 300 is fixedly connected to the blood taking needle 100, and a user can hold the needle holding part 300 to pierce the blood taking needle 100 into the vein of the patient, so that the operation is more stable; the tail needle part 500 is fixedly connected with the straight needle 200, so that a user can hold the tail needle part 500 to pierce the straight needle 200 into the vacuum blood collection tube, and the operation is more stable. And both ends of the connection part 400 are respectively connected to the needle holder 300 and the tail needle 500 such that the connection part 400 is less likely to be separated from the lancet 100 and the straight needle 200, making the blood sampling process safer.
As shown in fig. 1 and 2, in the present embodiment, the connecting portion 400 includes a bending body 410 and two connectors 420 connected to the bending body 410, one connector 420 is connected to the lancet 100 to form a head end 401, and the other connector 420 is connected to the straight needle 200 to form a tail end 402; when the tail end 402 receives a force with an equivalent component in a direction perpendicular to the axis of the straight needle 200 or when the head end 40 receives a force with an equivalent component in a direction perpendicular to the axis of the lancet 100, the bending body 410 generates bending deformation, i.e., the tail end rotates relative to the head end, so as to make the axes of the two connecting bodies 420 form an included angle. Through the arrangement that the bending of the bending body 410 makes the axes of the two connecting bodies 420 connecting the straight needle 200 and the blood taking needle 100 form an included angle, so that the axes of the straight needle 200 and the blood taking needle 100 form an included angle, the connecting bodies 420 of the connecting parts 400 connected with the straight needle 200 and the blood taking needle 100 cannot bend, so that the connecting bodies 420 can be relatively stably and fixedly connected with the straight needle 200 and the blood taking needle 100, and the connecting bodies 420 are not easy to break away from the straight needle 200 and the blood taking needle 100 to cause blood overflow. The bending body 410 is made of a flexible material, preferably a bellows, and in other embodiments, the bending body 410 may be a rubber hose or other flexible material that is easy to elastically deform.
The connection 400 is changeable between a first state 10 and a second state 20. As shown in fig. 1, when the connecting part 400 is deformed without receiving an external force, the two connecting bodies 420 are coaxial, the straight needle 200 and the lancet 100 are coaxial, and the connecting part 400 is in the first state 10. As shown in fig. 2, when the tail end 402 of the connecting portion 400 receives a force perpendicular to the axial direction of the straight needle 200 or the head end 401 receives a force perpendicular to the axial direction of the lancet 100, the bending body 410 is bent and deformed, and the axes of the two connecting bodies 420 intersect to form an included angle, i.e., an included angle is formed between the straight needle 200 and the axis of the lancet 100. When the connection part 400 is in the second state 20, the bending body 410 bends ninety degrees, that is, the axis of the straight needle 200 is perpendicular to the axis of the lancet 100, and the connection part 400 is in the second state 20.
As shown in fig. 2, when the connection part 400 is in the second state 20, i.e., the straight needle 200 is perpendicular to the lancet 100, when the straight needle 200 receives a force in the axial direction of the straight needle 200, the force is not applied in the axial direction of the lancet 100, respectively. After the lancet 100 is inserted into the vein of the patient, the lancet 100 is not inserted deeper into the vein by receiving the force in the axial direction of the lancet 100, thereby avoiding the risk of the lancet 100 being inserted too deeply. When the connection part 400 is positioned between the first state 10 and the second state 20, the bending body 410 bends at any angle other than zero, that is, the axis of the straight needle 200 and the axis of the lancet 100 intersect to form an angle other than zero, and when the straight needle 200 receives a force in the axial direction of the straight needle 200, the force is decomposed into a force parallel to the axis of the lancet 100 and a force perpendicular to the axial direction of the lancet 100, so that the force applied to the lancet 100 in the axial direction of the lancet 100 is smaller than the force, and the risk of the lancet 100 penetrating deeper into the vein due to the force applied in the axial direction of the lancet 100 can be reduced.
In addition, as shown in fig. 1 and 2, the needle holding part 300 includes a needle holding sleeve 310 and a needle holding protective tube 320; the tail needle portion 500 includes a tail needle cannula 510 and a tail needle protection tube 520.
The needle-holding sleeve 310 is sleeved and fixed on the blood taking needle 100, one end of the needle-holding protection tube 320 is fixed on the needle-holding sleeve 310, and the other end of the needle-holding protection tube 320 extends towards the direction approaching the straight needle 200; the tail needle cannula 510 is sleeved and fixed to the straight needle 200, one end of the tail needle protecting tube 520 is fixed to the tail needle cannula 510, the other end of the tail needle protecting tube 520 extends in a direction approaching the blood taking needle 100, and the connecting portion 400 is provided inside the needle holding protecting tube 320 and the tail needle protecting tube 520. Through such a setting, the needle-holding protection tube 320 and the tail needle protection tube 520 can cover the head end 401 and the tail end 402 of the connection part 400 connected with the blood taking needle 100 and the straight needle 200, and when the connection of the connection part 400 and the blood taking needle 100 or the straight needle 200 is loose, the needle-holding protection tube 320 and the tail needle protection tube 520 can prevent the connection from being loose to cause the splash of blood, thereby preventing the user from suffering from blood staining due to touching the blood. Preferably, the needle holding protection tube 320 and the tail needle protection tube 520 are both cylindrical structures, and the tail needle protection tube 520 is overlapped with the needle holding protection tube 320 and surrounds a cavity for accommodating the connection part 400. The connecting part 400 is arranged in the cavity, the tail needle protecting tube 520 and the needle holding protecting tube 320 are sleeved to completely comprise the connecting part 400 in the cavity, the connecting part 400 is completely isolated from the outside, the connecting part 400 is protected from being interfered by external factors while blood splashing is prevented, and the stability of the connecting part 400 is enhanced. Meanwhile, there is a gap between the tail needle protection tube 520 and the needle holding protection tube 320, which provides a space for rotation of the tail needle protection tube 520 fixed to the straight needle 200 and the needle holding protection tube 320 fixed to the lancet 100 when the connection part 400 is switched between the first state 10 and the second state 20. In this embodiment, the tail needle protecting tube 520 is sleeved on the needle holding protecting tube 320, that is, the inner diameter of the tail needle protecting tube 520 is larger than the outer diameter of the needle holding protecting tube 320, a through groove 521 is formed on the outer circumferential surface of the tail needle protecting tube 520, the through groove 521 is communicated with the opening of the tail needle protecting tube 520 far from the straight needle 200, and the wall surface of the through groove 521 is used for abutting against the outer circumferential surface of the needle holding protecting tube 320. The maximum bending angle of the connection part 400 can be controlled by changing the position of the through groove 521, and in this embodiment, when the bending body 410 is bent to ninety degrees, i.e., when the straight needle 200 is perpendicular to the axis of the lancet 100, the outer circumferential surface of the needle holding protection tube 320 can abut against the surface of the through groove 521. The user conveniently adjusts the flexible lancing device to a position where the straight needle 200 is perpendicular to the lancet 100. Of course, in other embodiments, the needle holding protection tube 320 may be sleeved on the tail needle protection tube 520, and the needle holding protection tube 320 may be provided with a through groove 521 for abutting against the surface of the tail needle protection tube 520. Wherein, the needle-holding sleeve 310 and the needle-holding protecting tube 320 may be an integral piece or may be two separate components; the tail needle cannula 510 and the tail needle protection tube 520 may be integrally formed or may be separate pieces.
As shown in fig. 1-3, the flexible lancing device further includes a protective cap 600. The protection cover 600 is sleeved on the straight needle 200 and fixedly connected to the tail needle part 500. As shown in fig. 3, the outer wall surface of the protection cap 600 is provided with a recess 610, the recess 610 is used to fit the arm surface of the arm, and the tangential plane extends from one end surface of the protection cap 600 near the lancet 100 to one end surface of the protection cap 600 far from the lancet 100. Through the arrangement of the concave portion 610, the protecting cover 600 can be attached to the arm surface of the arm of the human body, so that when the straight needle 200 is operated by operating the protecting cover 600, the protecting cover 600 has a stable supporting surface, and the operation is more stable. The wall surface of the concave portion 610 is preferably an arc surface, and the arc surface is used for matching with the arm surface of the arm, so that the concave portion 610 can be better fitted to the arm surface of the arm of the human body. The protection cover 600 and the tail needle 500 may be formed as an integral piece or may be formed as separate two members.
In this embodiment, the user can push the lancet 100 into the vein of the patient by holding the needle holding portion 300, and then apply a force to the needle holding portion 300 perpendicular to the straight needle 200, and the connecting portion 400 is bent to form an angle of ninety degrees, so that the axis of the lancet 100 coincides with the axis of the straight needle 200. Of course, the connecting portion 400 may be bent to form an angle of ninety degrees, and then the needle holding portion 300 may be held to push the lancet 100 into the vein of the patient. Then, the tail needle part 500 is held to pierce the straight needle 200 into the vacuum blood collection tube, and the straight needle 200 needs to pierce the sealing sleeve 700 sleeved on the straight needle 200 first and then pierce the sealing layer on the vacuum blood collection tube into the vacuum blood collection tube (neither the vacuum blood collection tube nor the sealing layer are shown in fig. 1-3). In this process, the sealing sleeve 700 sleeved on the straight needle 200 and the sealing layer on the vacuum blood collection tube apply a force to the straight needle 200 along the axial direction of the straight needle 200, the force is transferred to the tail needle part 500 and the protecting cover 600 along the axial direction of the straight needle 200, and the force does not have an equivalent component force along the axial direction of the blood collection needle 100, so that the blood collection needle 100 cannot move along the axial direction of the blood collection needle 100, and the danger to a patient caused by too deep penetration of the blood collection needle 100 is avoided.
Example 2
Embodiment 1 has many identical parts to embodiment 2, and these identical parts are not described here again.
As shown in fig. 4, embodiment 2 is mainly different from embodiment 1 in that: the connecting portion 400 of the rigid blood sampling device is a non-bendable component, and the axis of the head end 401 and the axis of the tail end 402 of the connecting portion 400 are not parallel and intersect to form an included angle which is not zero. The included angle is preferably between 45 degrees and 90 degrees. In this embodiment, the axis of the head end 401 and the axis of the tail end 402 intersect to form an angle of ninety degrees, i.e. the connecting portion 400 has an L-shaped structure, so that the lancet 100 is perpendicular to the straight needle 200.
In this embodiment, the user may push the lancet 100 into the vein of the patient by holding the needle holder 300, then holding the tail needle 500 to pierce the straight needle 200 into the vacuum blood collection tube, and then the straight needle 200 needs to pierce the sealing sleeve 700 sleeved on the straight needle 200 and pierce the sealing layer on the vacuum blood collection tube into the vacuum blood collection tube (neither the vacuum blood collection tube nor the sealing layer are shown in fig. 4). In this process, the sealing sleeve 700 sleeved on the straight needle 200 and the sealing layer on the vacuum blood collection tube apply a force to the straight needle 200 along the axial direction of the straight needle 200, the force is transferred to the tail needle part 500 and the protecting cover 600 along the axial direction of the straight needle 200, and the force does not have an equivalent component force along the axial direction of the blood collection needle 100, so that the blood collection needle 100 cannot move along the axial direction of the blood collection needle 100, and the danger to a patient caused by too deep penetration of the blood collection needle 100 is avoided.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in 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 configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (11)
1. The flexible blood sampling device comprises a needle sleeve, a blood sampling needle and a straight needle, and is characterized in that the needle sleeve comprises a needle holding part, a connecting part and a tail needle part which are connected in sequence; wherein,
the needle holding part is sleeved and fixed on the blood taking needle;
the tail needle part is sleeved and fixed on the straight needle;
the connecting part is connected with and communicated with the blood taking needle and the straight needle;
the connecting part is provided with a head end connected with the needle holding part and a tail end connected with the tail needle part along the axial direction, the head end is sleeved on the blood taking needle, and the tail end is sleeved on the straight needle; the tail end can rotate relative to the head end, and the axes of the head end and the tail end can form an included angle which is different from zero;
the needle holding part comprises a needle holding sleeve and a needle holding protection tube; the needle holding sleeve is sleeved and fixed on the blood taking needle, one end of the needle holding protection tube is fixed on the needle holding sleeve, and the other end of the needle holding protection tube extends towards the direction close to the straight needle;
the tail needle part comprises a tail needle sleeve and a tail needle protection tube; the tail needle sleeve is sleeved and fixed on the straight needle, one end of the tail needle protection tube is fixed on the tail needle sleeve, and the other end of the tail needle protection tube extends towards the direction close to the blood taking needle;
the connecting part is arranged in the needle holding protection tube and the tail needle protection tube.
2. The flexible lancing device of claim 1, wherein said connector comprises a bent body and two connectors connected to said bent body, one of said connectors connecting said lancet to form said head end and the other of said connectors connecting said straight needle to form said tail end; the bending body is made of flexible materials.
3. The flexible lancing device of claim 2, wherein the bending body is a bellows.
4. The flexible lancing device of claim 1, wherein said tail needle protection tube is nested with said needle holding protection tube and encloses a cavity for receiving said connector.
5. The flexible lancing device of claim 4, wherein the tail needle protection tube is in clearance with the needle holding protection tube.
6. The flexible blood sampling device according to claim 5, wherein the tail needle protecting tube is sleeved on the needle holding protecting tube, a through groove is formed in the outer circumferential surface of the tail needle protecting tube, the through groove is communicated with an opening of the tail needle protecting tube far away from the straight needle, and the wall surface of the through groove is used for abutting against the outer circumferential surface of the needle holding protecting tube.
7. The flexible lancing device of claim 1, wherein the flexible lancing device further comprises a protective shield;
the protective cover is sleeved on the straight needle and fixedly connected to the tail needle part, a concave part is arranged on the outer wall surface of the protective cover and is used for being attached to the arm surface of an arm, and the concave part extends from one end surface of the protective cover, which is close to the blood taking needle, to one end surface of the protective cover, which is far away from the blood taking needle.
8. The flexible lancing device of claim 7, wherein the wall of the recess is an arc surface adapted to fit the arm surface of the arm.
9. The rigid blood sampling device comprises a needle sleeve, a blood sampling needle and a straight needle, and is characterized in that the needle sleeve comprises a needle holding part, a connecting part and a tail needle part which are sequentially connected; wherein,
the needle holding part is sleeved and fixed on the blood taking needle;
the tail needle part is sleeved and fixed on the straight needle;
the connecting part is connected with and communicated with the blood taking needle and the straight needle;
the connecting part is provided with a head end connected with the needle holding part and a tail end connected with the tail needle part along the axial direction, the head end is sleeved on the blood taking needle, and the tail end is sleeved on the straight needle; the axis of the head end and the axis of the tail end form an included angle which is different from zero;
the needle holding part comprises a needle holding sleeve and a needle holding protection tube; the needle holding sleeve is sleeved and fixed on the blood taking needle, one end of the needle holding protection tube is fixed on the needle holding sleeve, and the other end of the needle holding protection tube extends towards the direction close to the straight needle;
the tail needle part comprises a tail needle sleeve and a tail needle protection tube; the tail needle sleeve is sleeved and fixed on the straight needle, one end of the tail needle protection tube is fixed on the tail needle sleeve, and the other end of the tail needle protection tube extends towards the direction close to the blood taking needle;
the connecting part is arranged in the needle holding protection tube and the tail needle protection tube.
10. The rigid blood collection device of claim 9, wherein the included angle is 45-90 degrees.
11. The rigid blood collection device of claim 10, wherein the included angle is 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303350.8A CN109893142B (en) | 2019-04-16 | 2019-04-16 | Flexible blood sampling device and rigid blood sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303350.8A CN109893142B (en) | 2019-04-16 | 2019-04-16 | Flexible blood sampling device and rigid blood sampling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109893142A CN109893142A (en) | 2019-06-18 |
| CN109893142B true CN109893142B (en) | 2023-11-17 |
Family
ID=66954889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910303350.8A Active CN109893142B (en) | 2019-04-16 | 2019-04-16 | Flexible blood sampling device and rigid blood sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109893142B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811555A (en) * | 2019-11-13 | 2020-02-21 | 青岛大学附属医院 | Spectrum biopsy instrument for early gastric cancer diagnosis |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0732077A1 (en) * | 1994-12-20 | 1996-09-18 | André Dr. v. Froreich | Device for the puncture of blood vessels with a cannula |
| JPH0994246A (en) * | 1995-09-29 | 1997-04-08 | Sekisui Chem Co Ltd | Blood sampling needle and blood sampling method |
| WO2005041773A1 (en) * | 2003-11-04 | 2005-05-12 | Alfonsa Casarotto | Process for the production of interchangeable vacuum test tube holders for taking blood samples and product obtained therefrom |
| EP1747755A1 (en) * | 2004-05-17 | 2007-01-31 | Sekisui Chemical Co., Ltd. | Backflow preventing structure of blood sampler, lure needle, blood sampling needle and blood sampling holder |
| CN201356553Y (en) * | 2009-01-22 | 2009-12-09 | 张丽梅 | Blood sampling tube |
| WO2014019197A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Syringe type vacuum blood collector with telescopic protective sleeve |
| WO2014019201A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Syringe type vacuum blood collector |
| CN103976747A (en) * | 2014-04-11 | 2014-08-13 | 上海金塔医用器材有限公司 | Safety blood taking needle |
| CN104274190A (en) * | 2014-04-11 | 2015-01-14 | 上海金塔医用器材有限公司 | Safety blood taking needle |
| CN107485400A (en) * | 2017-09-15 | 2017-12-19 | 顾虹 | One kind blood sampling needle part and blood lancet device |
| CN210114461U (en) * | 2019-04-16 | 2020-02-28 | 上海金塔医用器材有限公司 | Flexible blood sampling device and rigid blood sampling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6511440B2 (en) * | 2001-01-22 | 2003-01-28 | Long Hsiung Chen | Safety vacuum syringe for blood sampling conformed to ergonomics |
-
2019
- 2019-04-16 CN CN201910303350.8A patent/CN109893142B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0732077A1 (en) * | 1994-12-20 | 1996-09-18 | André Dr. v. Froreich | Device for the puncture of blood vessels with a cannula |
| JPH0994246A (en) * | 1995-09-29 | 1997-04-08 | Sekisui Chem Co Ltd | Blood sampling needle and blood sampling method |
| WO2005041773A1 (en) * | 2003-11-04 | 2005-05-12 | Alfonsa Casarotto | Process for the production of interchangeable vacuum test tube holders for taking blood samples and product obtained therefrom |
| EP1747755A1 (en) * | 2004-05-17 | 2007-01-31 | Sekisui Chemical Co., Ltd. | Backflow preventing structure of blood sampler, lure needle, blood sampling needle and blood sampling holder |
| CN201356553Y (en) * | 2009-01-22 | 2009-12-09 | 张丽梅 | Blood sampling tube |
| WO2014019197A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Syringe type vacuum blood collector with telescopic protective sleeve |
| WO2014019201A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Syringe type vacuum blood collector |
| CN104470440A (en) * | 2012-08-02 | 2015-03-25 | 张建铭 | Syringe type vacuum blood collector with telescopic protective sleeve |
| CN103976747A (en) * | 2014-04-11 | 2014-08-13 | 上海金塔医用器材有限公司 | Safety blood taking needle |
| CN104274190A (en) * | 2014-04-11 | 2015-01-14 | 上海金塔医用器材有限公司 | Safety blood taking needle |
| CN107485400A (en) * | 2017-09-15 | 2017-12-19 | 顾虹 | One kind blood sampling needle part and blood lancet device |
| CN210114461U (en) * | 2019-04-16 | 2020-02-28 | 上海金塔医用器材有限公司 | Flexible blood sampling device and rigid blood sampling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109893142A (en) | 2019-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114392458B (en) | Catheter assembly | |
| US10342918B2 (en) | Subcutaneous infusion device | |
| EP1816947B1 (en) | Blood collection assembly | |
| US11369296B2 (en) | Needle holder | |
| WO2022047326A1 (en) | Aspiration syringes and methods thereof | |
| CN109893142B (en) | Flexible blood sampling device and rigid blood sampling device | |
| EP2837404A1 (en) | Male connector equipped with lock mechanism | |
| KR100567437B1 (en) | Medical needle device with winged shield for erroneous piercing prevention | |
| EP3500323B1 (en) | Safety needle with deformable cannula for injector pen | |
| WO2013122149A1 (en) | Indwelling needle device | |
| CN210114461U (en) | Flexible blood sampling device and rigid blood sampling device | |
| JP5999415B2 (en) | Indwelling needle device | |
| KR100586364B1 (en) | Medical needle unit having wing shield for preventing erroneous puncturing | |
| CN215228228U (en) | Aseptic puncture fixer | |
| JPH0928809A (en) | Blood vessel piercing device | |
| CN215840900U (en) | Needle for transfusion port | |
| CN219001481U (en) | Intravenous puncture needle | |
| CN216455021U (en) | Blood taking needle and blood taking device | |
| CN219070421U (en) | Brain biopsy needle with depth limiting function and adjustable rotary gear | |
| CN219109678U (en) | Bone puncture outfit | |
| CN219681347U (en) | Disposable needle for implanted drug delivery device | |
| CN219480284U (en) | Puncture needle | |
| CN213850709U (en) | Capsule type needle type test tube for blood sampling physical examination | |
| CN215017022U (en) | Disposable cystoscope syringe | |
| CN215688093U (en) | Prepackage type continuous sampling forceps |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |