CN210114461U - Flexible blood sampling device and rigid blood sampling device - Google Patents
Flexible blood sampling device and rigid blood sampling device Download PDFInfo
- Publication number
- CN210114461U CN210114461U CN201920512240.8U CN201920512240U CN210114461U CN 210114461 U CN210114461 U CN 210114461U CN 201920512240 U CN201920512240 U CN 201920512240U CN 210114461 U CN210114461 U CN 210114461U
- Authority
- CN
- China
- Prior art keywords
- needle
- tail
- straight
- holding
- protection tube
- 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 24
- 239000008280 blood Substances 0.000 claims abstract description 110
- 210000004369 blood Anatomy 0.000 claims abstract description 110
- 230000001681 protective effect Effects 0.000 claims description 27
- 238000005452 bending Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims 1
- 210000003462 vein Anatomy 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007105 physical stamina Effects 0.000 description 1
Images
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a flexible blood sampling device and rigidity 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 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 not zero. Through such setting for the effort that the blood taking needle received along the axial of blood taking needle reduces, has reduced because of pricking the risk that brings of vein deep. Meanwhile, the needle holding part and the connecting part are arranged, so that the operation of the blood taking needle and the straight needle is facilitated, and the needle holding part, the connecting part and the tail needle part are sequentially connected, so that the connecting part is more difficult to separate from the blood taking needle and the straight needle, and the blood taking process is safer.
Description
Technical Field
The utility model relates to a flexible blood sampling device and a rigidity blood sampling device.
Background
There are blood collecting devices such as intravenous needles, which generally include a blood collecting needle for puncturing veins of a human body, a straight needle for puncturing a vacuum blood collecting tube, and a needle guard for operating the blood collecting needle and the straight needle. However, in the process of puncturing the straight needle into the vacuum blood collection tube, the vacuum blood collection tube applies a force to the straight needle parallel to the axial direction of the straight needle, the force being transmitted to the lancet through the needle sheath, and since the lancet is coaxial with the straight needle, the force is entirely applied to the lancet, so that the lancet moves in the axial direction and punctures a deeper part of the vein, risking puncturing the vein.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that the axial that applies along the blood taking needle in order to overcome among the prior art to use the power on the straight needle can all be applied and apply in the problem of blood taking needle in, provides a flexible blood sampling device and a rigidity blood sampling device.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
a 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 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 aft end is rotatable relative to the head end.
In this solution, the tail end is arranged to be rotatable relative to the head end. When a straight needle needs to be pierced into the vacuum blood collection tube, the connecting part needs to be bent so that the head end and the tail end form an included angle which is not zero, and the head end and the tail end are respectively connected with the blood taking needle and the straight needle so that the axis of the blood taking needle and the axis of the straight needle can also form an included angle which is not zero. When the straight needle is subjected to a force in the axial direction of the straight needle, the force is decomposed into a parallel component and a component perpendicular to the axial direction of the lancet, so that the force applied to the lancet in the axial direction of the lancet is reduced, and the risk of the lancet puncturing too deeply into the vein is reduced. Meanwhile, the needle holding part and the connecting part are arranged, so that the operation of the blood taking needle and the straight needle is facilitated, and the needle holding part, the connecting part and the tail needle part are sequentially connected, so that the connecting part is more difficult to separate from the blood taking needle and the straight needle, and the blood taking process is safer.
Preferably, the connecting part comprises a bent body and two connecting bodies connected to the bent 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, buckle body and connector through setting up, buckle the body and roll over and drive head end and tail end formation contained angle to make connecting that the physical stamina is 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 protective tube; the needle holding sleeve is sleeved and fixed on the blood taking needle, one end of the needle holding protective tube is fixed on the needle holding sleeve, and the other end of the needle holding protective 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 inside the needle holding protective tube and the tail needle protective tube.
In this scheme, hold needle protection tube and tail needle protection tube through the setting, surrounded the both ends of connecting blood taking needle and the straight needle of connecting portion, prevented to connect the outer of inseparable blood that leads to because of the both ends of connecting portion and spout.
Preferably, the tail needle protection tube and the needle holding protection tube are overlapped and surround 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, have strengthened the stability of connecting portion.
Preferably, the tail needle protection tube and the needle holding protection tube have a gap.
In this aspect, the trailing needle protection tube and the needle holding protection tube have a gap therebetween so that the needle holding protection tube can rotate within a certain range with respect to the trailing needle protection tube.
Preferably, the tail needle protection tube is sleeved on the needle holding protection tube, a through groove is formed in the peripheral surface of the tail needle protection tube, the through groove is communicated with the opening, far away from the straight needle, of the tail needle protection tube, and the wall surface of the through groove is used for abutting against the peripheral surface of the needle holding protection tube.
In this scheme, when the axis of the head end of connecting portion and afterbody formed a contained angle that is not zero, the axis of blood taking needle also formed a contained angle that is not zero with the axis of straight needle, the axis of tail needle protection tube also formed a contained angle that is not zero thereupon with the axis of holding the needle protection tube, at this moment, the outer peripheral face of holding the needle protection tube can support by in logical groove realizes holding needle protection tube and the firm cooperation of tail needle protection tube.
Preferably, the flexible blood collection device further comprises a protective cover;
the safety cover is located the straight needle and link firmly in tail needle portion, the outer wall of safety cover is equipped with a sunk part, the sunk part is used for the arm face of laminating arm, the tangent plane certainly being close to of safety cover the terminal surface of blood taking needle extends to keeping away from of safety cover the terminal surface of blood taking needle.
In this scheme, through set up the sunk part on the safety cover for the arm face of human arm of safety cover laminating can be made, thereby when making the safety cover pass through the straight needle of operation safety cover operation, the safety cover has a firm holding surface, and then makes the operation more firm.
Preferably, the wall surface of the recessed portion is an arc surface, and the arc surface is adapted to the arm surface of the arm.
In this scheme, through setting up the depressed part into inside sunken arc surface for the arm face of laminating arm that the safety cover can be better.
A 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 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 not zero.
Preferably, the included angle is 45-90 degrees.
Preferably, the included angle is 90 degrees.
In the scheme, when the included angle is ninety degrees, the acting force which acts on the straight needle and is parallel to the axial direction of the straight needle can not act on the axial direction of the blood taking needle at all, so that the blood taking process is safer.
The utility model discloses an actively advance the effect and lie in:
through the rotatable or not zero contained angle's of formation setting of head end and tail end for the axial effort of following the blood taking needle that the blood taking needle received reduces, has reduced because of pricking the risk that the vein deep brought. Meanwhile, the needle holding part and the connecting part are arranged, so that the operation of the blood taking needle and the straight needle is facilitated, and the needle holding part, the connecting part and the tail needle part are sequentially connected, so that the connecting part is more difficult to separate from the blood taking needle and the straight needle, and the blood taking process is safer.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of embodiment 1 of the present invention in a first state.
Fig. 2 is a schematic cross-sectional view of embodiment 1 of the present invention in a second state.
Fig. 3 is a schematic perspective view of embodiment 1 of the present invention in a first state.
Fig. 4 is a schematic cross-sectional structure diagram of embodiment 2 of the present invention.
Description of the reference numerals
Needle holding part 300
Needle holding cannula 310
Needle-holding protective tube 320
Connecting part 400
Head end 401
Bending body 410
Connecting body 420
Tail needle protection tube 520
Through groove 521
Sealing boot 700
Recessed portion 610
Detailed Description
The present invention is further illustrated by way 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 present invention provides a flexible blood collection device including a needle cover, a blood collection needle 100 and a straight needle 200. The blood taking needle 100 is used for puncturing the skin of a patient to pierce a vein for blood sampling, the straight needle 200 is connected and communicated with the blood taking needle 100, and the blood taking needle 100 is used for puncturing a sealing layer on a vacuum blood collecting tube to convey blood in the blood taking needle 100 into the vacuum blood collecting tube, so that blood sampling work of the patient is realized.
Wherein, the needle cover comprises a needle holding part 300, a connecting part 400 and a tail needle part 500 which are connected in sequence.
The needle holding part 300 is sleeved and fixed on the blood collection needle 100; the tail needle part 500 is sleeved and fixed on the straight needle 200; the connecting part 400 connects and communicates the lancet 100 and the straight needle 200; the connecting part 400 has a head end 401 connected to the needle holding part 300 and a tail end 402 connected to the tail needle part 500 along the axial direction, the head end 401 is sleeved on the blood collection needle 100, and the tail end 402 is sleeved on the straight needle 200; the aft end 402 may rotate relative to the head end 401.
The tail end 402 can rotate relative to the head end 401, that is, the axes of the head end 401 and the tail end 402 can form an included angle which is not zero, when the straight needle 200 needs to be inserted into the vacuum blood collection tube, the connecting part 400 needs to be bent, so that the head end 401 and the tail end 402 form an included angle which is not zero, and the head end 401 and the tail end 402 are respectively connected with the blood collection needle 100 and the straight needle 200, so that the axes of the blood collection needle 100 and the straight needle 200 also form an included angle which is not zero. When the straight needle 200 is subjected to a force in the axial direction of the straight needle 200, the force is decomposed into a parallel force 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 puncturing the deep vein is reduced. Meanwhile, the needle holding part 300 is fixedly connected with the blood taking needle 100, so that a user can hold the needle holding part 300 to insert the blood taking needle 100 into the vein of a patient, and the operation is more stable; tail needle portion 500 links firmly in straight needle 200, and the user can hand tail needle portion 500 and prick straight needle 200 in the vacuum test tube, operates more firmly. And both ends of the connecting part 400 are connected to the needle holding part 300 and the tail needle part 500, respectively, so that the connecting part 400 is less likely to be separated from the lancet 100 and the straight needle 200, and the blood collection process is safer.
As shown in fig. 1 and 2, in the present embodiment, the connecting portion 400 includes a bent body 410 and two connecting bodies 420 connected to the bent body 410, one connecting body 420 connecting the lancet 100 to form a head end 401, and the other connecting body 420 connecting the straight needle 200 to form a tail end 402; when a force is applied to the trailing end 402 and has an equivalent component in a direction perpendicular to the axis of the straight needle 200, or a force is applied to the leading end 40 and has an equivalent component in a direction perpendicular to the axis of the lancet 100, the bending body 410 is bent, i.e., the trailing end rotates with respect to the leading end, so that the axes of the two connecting bodies 420 form an included angle. The axis of the connecting bodies 420 of the two connecting straight needles 200 and the blood collecting needles 100 forms an included angle through the bending of the bending body 410, so that the axis of the straight needle 200 and the axis of the blood collecting needles 100 form an included angle, and through the arrangement, the connecting bodies 420 of the connecting parts 400 connected with the straight needles 200 and the blood collecting needles 100 are not bent, so that the connecting bodies 420 can be fixedly connected with the straight needles 200 and the blood collecting needles 100 relatively and stably, and further the connecting bodies 420 are not easy to separate from the straight needles 200 and the blood collecting needles 100 to cause the overflow of blood. The bending body 410 is made of a flexible material, preferably a corrugated tube, and in other embodiments, the bending body 410 may also be a rubber hose or other flexible materials that are easily elastically deformed.
The connection 400 is changeable between a first state 10 and a second state 20. As shown in FIG. 1, when the connecting unit 400 is deformed without receiving an external force, the two connecting units 420 are coaxial, and the straight needle 200 and the lancet 100 are coaxial, the connecting unit 400 is in the first state 10. As shown in FIG. 2, when the tail end 402 of the connecting part 400 is applied with a force perpendicular to the axial direction of the straight needle 200 or the head end 401 is applied with 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., the axes of the straight needle 200 and the lancet 100 form an included angle. When the connecting part 400 is in the second state 20, the bent body 410 is bent ninety degrees, that is, the axis of the straight needle 200 is perpendicular to the axis of the lancet 100, and the connecting part 400 is in the second state 20.
As shown in fig. 2, when the connecting portion 400 is in the second state 20, that is, 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 forces are not respectively forces in the axial direction of the lancet 100. The lancet 100 does not penetrate deeper into a vein by a force applied in an axial direction of the lancet 100 after penetrating the vein of a patient, thereby preventing a risk caused by the lancet 100 penetrating too deeply. When the connecting portion 400 is located between the first state 10 and the second state 20, the bending body 410 is bent at any non-zero angle, that is, the axis of the straight needle 200 intersects with the axis of the lancet 100 at a non-zero angle, 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, thereby reducing the risk of the lancet 100 puncturing the deeper part of the vein due to the force applied to the lancet 100 in the axial direction of the lancet 100.
In addition, as shown in fig. 1 and 2, the needle holding part 300 includes a needle holding cannula 310 and a needle holding protection tube 320; the trailing needle portion 500 includes a trailing needle cannula 510 and a trailing needle protection tube 520.
The needle holding sleeve 310 is sleeved and fixed on the blood collection needle 100, one end of the needle holding protective tube 320 is fixed on the needle holding sleeve 310, and the other end of the needle holding protective tube 320 extends towards the direction close to the straight needle 200; the tail needle sleeve 510 is fixed to the straight needle 200, one end of the tail needle protection tube 520 is fixed to the tail needle sleeve 510, the other end of the tail needle protection tube 520 extends in a direction approaching the blood collection needle 100, and the connection portion 400 is provided inside the needle holding protection tube 320 and the tail needle protection tube 520. With such an arrangement, 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 connecting part 400 connected with the blood collection needle 100 and the straight needle 200, and when the connecting part 400 is loosened from the blood collection needle 100 or the straight needle 200, the needle holding protection tube 320 and the tail needle protection tube 520 can prevent blood from splashing due to the loose connection, and prevent a user from suffering from blood contamination due to blood touch. 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 to form a cavity for accommodating the connecting part 400. Connecting portion 400 is arranged in the cavity, and tail needle protection tube 520 overlaps with needle protection tube 320 and overlaps connecting portion 400 and includes in both inside completely, keeps apart connecting portion 400 with external completely, when having prevented blood splash, has protected connecting portion 400 not to receive external factors to disturb, has strengthened connecting portion 400's stability. Meanwhile, the trailing needle protection tube 520 has a gap with the needle holding protection tube 320, and the gap provides a space for the trailing needle protection tube 520 fixed to the straight needle 200 and the needle holding protection tube 320 fixed to the blood collection needle 100 to rotate when the connection 400 is switched between the first state 10 and the second state 20. In this embodiment, the tail needle protection tube 520 is sleeved on the needle holding protection tube 320, that is, the inner diameter of the tail needle protection tube 520 is larger than the outer diameter of the needle holding protection tube 320, the outer circumferential surface of the tail needle protection tube 520 is provided with a through groove 521, the through groove 521 is communicated with the opening of the tail needle protection tube 520, which is far away 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 protection tube 320. The maximum bending angle of the connecting part 400 can be controlled by changing the position of the through groove 521, and in the present embodiment, when the bending body 410 is bent to ninety degrees, that is, when the straight needle 200 is perpendicular to the axis of the blood lancet 100, the outer circumferential surface of the needle holding protection tube 320 can abut against the surface of the through groove 521. It is convenient for the user to adjust the flexible blood collection device to a position where the straight needle 200 is perpendicular to the blood collection needle 100. Of course, in another embodiment, the needle holding protection tube 320 may be fitted to the trailing 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 trailing needle protection tube 520. The needle holding sleeve 310 and the needle holding protection tube 320 can be an integrally formed piece or can be two separated components; the trailing needle cannula 510 and the trailing needle protection tube 520 may be an integral piece or may be separate two components.
As shown in fig. 1-3, the flexible blood collection device further includes a protective cover 600. The protective cover 600 is sleeved on the straight needle 200 and fixedly connected to the tail needle portion 500. As shown in FIG. 3, the outer wall surface of the protective cover 600 is provided with a recess 610, the recess 610 is adapted to fit the arm surface of the arm, and the section extends from an end surface of the protective cover 600 close to the lancet 100 to an end surface of the protective cover 600 far from the lancet 100. Through the arrangement of the concave part 610, the protective 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 protective cover 600, the protective cover 600 has a stable supporting surface, and the operation is more stable. The wall surface of the concave portion 610 is preferably a circular arc surface, and the circular arc surface is adapted to 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 protective cover 600 and the tail needle portion 500 may be an integral molding or may be two separate members.
In this embodiment, a user can push the lancet 100 into a vein of a patient by holding the needle holding portion 300, and then apply a force perpendicular to the straight needle 200 to the needle holding portion 300, and the connecting portion 400 is bent to form an included angle of ninety degrees, at which time the axis of the lancet 100 coincides with the axis of the straight needle 200. Of course, the connection portion 400 may be bent to form an included angle of ninety degrees, and then the needle holding portion 300 may be held by hand to push the lancet 100 into the vein of the patient. Then, the tail needle portion 500 is held by hand to insert the straight needle 200 into the evacuated blood collection tube, and the straight needle 200 firstly pierces the sealing sleeve 700 on the straight needle 200 and then pierces the sealing layer on the evacuated blood collection tube to enter the evacuated blood collection tube (neither the evacuated blood collection tube nor the sealing layer is shown in fig. 1-3). In the process, the sealing sleeve 700 sleeved on the straight needle 200 and the sealing layer on the vacuum blood collection tube both apply an acting force to the straight needle 200 along the axial direction of the straight needle 200, the acting force is transmitted to the tail needle part 500 and the protective cover 600 along the axial direction of the straight needle 200, and the acting force has no equivalent component force along the axial direction of the blood collection needle 100, so that the blood collection needle 100 can not move along the axial direction thereof, and the danger to the patient caused by the fact that the blood collection needle 100 is penetrated too deeply is avoided.
Example 2
Embodiment 1 has many parts in common with embodiment 2, and these parts are not described again here.
As shown in fig. 4, the main points of the embodiments 2 and 1 are: the connecting part 400 of the rigid blood sampling device is an inflexible part, and the axis of the head end 401 and the axis of the tail end 402 of the connecting part 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 intersects the axial direction of the tail end 402 to form an included angle of ninety degrees, that is, the connecting portion 400 has an L-shaped structure, so that the lancet 100 and the straight needle 200 are perpendicular to each other.
In this embodiment, the user can push the blood collection needle 100 into the vein of the patient by holding the needle holding portion 300, and then hold the tail needle portion 500 to insert the straight needle 200 into the evacuated blood collection tube, wherein the straight needle 200 needs to first puncture the sealing sleeve 700 sleeved on the straight needle 200 and then puncture the sealing layer on the evacuated blood collection tube to enter the evacuated blood collection tube (neither the evacuated blood collection tube nor the sealing layer is shown in fig. 4). In the process, the sealing sleeve 700 sleeved on the straight needle 200 and the sealing layer on the vacuum blood collection tube both apply an acting force to the straight needle 200 along the axial direction of the straight needle 200, the acting force is transmitted to the tail needle part 500 and the protective cover 600 along the axial direction of the straight needle 200, and the acting force has no equivalent component force along the axial direction of the blood collection needle 100, so that the blood collection needle 100 can not move along the axial direction thereof, and the danger to the patient caused by the fact that the blood collection needle 100 is penetrated too deeply is avoided.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that 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 spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (12)
1. A 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 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 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 aft end is rotatable relative to the head end.
2. The flexible lancing device of claim 1, wherein the connecting portion comprises a bent body and two connectors connected to the bent body, one of the connectors connecting the lancet forming the head end and the other of the connectors connecting the straight needle forming the tail end; the bending body is made of flexible materials.
3. The flexible lancing device of claim 2, wherein the crimped body is a bellows.
4. The flexible lancing device of claim 1,
the needle holding part comprises a needle holding sleeve and a needle holding protective tube; the needle holding sleeve is sleeved and fixed on the blood taking needle, one end of the needle holding protective tube is fixed on the needle holding sleeve, and the other end of the needle holding protective 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 inside the needle holding protective tube and the tail needle protective tube.
5. The flexible lancing device of claim 4, wherein said trailing needle protection tube is nested with said needle holding protection tube and surrounds a cavity for receiving said connector portion.
6. The flexible lancing device of claim 5, wherein the trailing needle protection tube is gapped from the needle holding protection tube.
7. The flexible blood collection device according to claim 6, wherein 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 of the tail needle protection tube, the opening is far away from the straight needle, and the wall surface of the through groove is used for abutting against the outer peripheral surface of the needle holding protection tube.
8. The flexible lancing device of claim 1, further comprising a protective cap;
the safety cover is located the straight needle and link firmly in tail needle portion, the outer wall of safety cover is equipped with a sunk part, the sunk part is used for the arm face of laminating arm, the sunk part certainly being close to of safety cover the terminal surface of blood taking needle extends to keep away from of safety cover the terminal surface of blood taking needle.
9. The flexible lancing device of claim 8, wherein the wall of the recessed portion is a circular arc for mating with an arm surface of the arm.
10. A 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 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 not zero.
11. The rigid lancing device of claim 10, wherein the included angle is 45 to 90 degrees.
12. The rigid lancing device of claim 11, wherein the included angle is 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920512240.8U CN210114461U (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 |
|---|---|---|---|
| CN201920512240.8U CN210114461U (en) | 2019-04-16 | 2019-04-16 | Flexible blood sampling device and rigid blood sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210114461U true CN210114461U (en) | 2020-02-28 |
Family
ID=69613138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920512240.8U Active CN210114461U (en) | 2019-04-16 | 2019-04-16 | Flexible blood sampling device and rigid blood sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210114461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893142A (en) * | 2019-04-16 | 2019-06-18 | 上海金塔医用器材有限公司 | Flexible blood-taking device and rigid blood-taking device |
-
2019
- 2019-04-16 CN CN201920512240.8U patent/CN210114461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893142A (en) * | 2019-04-16 | 2019-06-18 | 上海金塔医用器材有限公司 | Flexible blood-taking device and rigid blood-taking device |
| CN109893142B (en) * | 2019-04-16 | 2023-11-17 | 上海金塔医用器材有限公司 | Flexible blood sampling device and rigid blood sampling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1816947B1 (en) | Blood collection assembly | |
| EP1862193A1 (en) | Indwelling needle device | |
| CN210114461U (en) | Flexible blood sampling device and rigid blood sampling device | |
| EP2919832A1 (en) | Passive double drive member activated safety blood collection device | |
| KR100567437B1 (en) | Medical needle device with winged shield for erroneous piercing prevention | |
| CN210843078U (en) | Hemostix with venous indwelling needle | |
| EP3077030B1 (en) | Blood collection device with double pivot shields | |
| CN109893142A (en) | Flexible blood-taking device and rigid blood-taking device | |
| US7060060B1 (en) | Dialysis procedure catheter | |
| CN107157495A (en) | A kind of anti-rebound needle holder | |
| JPH0928809A (en) | Blood vessel piercing device | |
| CN215959900U (en) | Pen type blood taking needle | |
| CN221555618U (en) | Safety anti-needling blood taking needle | |
| CN213850709U (en) | Capsule type needle type test tube for blood sampling physical examination | |
| CN212090420U (en) | Indwelling needle | |
| CN209951272U (en) | Device for preventing puncture wound of blood taking needle | |
| JP3016719U (en) | Winged needle assembly and needle assembly | |
| CN216021302U (en) | Disposable self-adaptive puncture and tear-off sheath | |
| CN221845764U (en) | Integrated central line catheter tube placing device | |
| JP3223479U (en) | Syringe aids | |
| CN215458051U (en) | Multifunctional blood taking needle | |
| CN214318052U (en) | Focus puncture aspirator | |
| CN215840900U (en) | Needle for transfusion port | |
| CN215915981U (en) | Transfusion needle structure and transfusion assembly with same | |
| CN220256891U (en) | Improved venous indwelling needle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |