CN111904436A - Novel blood taking needle sheath - Google Patents
Novel blood taking needle sheath Download PDFInfo
- Publication number
- CN111904436A CN111904436A CN202010781096.5A CN202010781096A CN111904436A CN 111904436 A CN111904436 A CN 111904436A CN 202010781096 A CN202010781096 A CN 202010781096A CN 111904436 A CN111904436 A CN 111904436A
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- Prior art keywords
- blood taking
- taking needle
- needle
- puncture needle
- blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150572—Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
Abstract
The invention provides a novel blood taking needle sheath which comprises a blood taking needle and a connecting hose, wherein a blood taking needle accommodating pipe is sleeved at the joint of the blood taking needle and the connecting hose, and the blood taking needle accommodating pipe is fixedly connected with the connecting hose at one end far away from the blood taking needle; the blood taking needle receiving pipe is internally provided with a containing cavity, and the blood taking needle can move along the axial direction of the blood taking needle receiving pipe and can completely enter the blood taking needle receiving pipe; a blood taking needle protective cover is sleeved outside the blood taking needle; a push rod is arranged at one end of the blood taking needle close to the connecting hose, and a push rod groove matched with the push rod is arranged at the right end of the blood taking needle accommodating pipe; the top surface of the blood taking needle accommodating pipe is provided with a handle. The invention solves the problems that the prior blood taking needle is easy to cause pollution and disease propagation because the blood flows out of the blood taking needle after being used; the application range is limited, the structure is complex, the use is complicated, the production cost is high, the safety performance is difficult to ensure, and the like.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a novel blood taking needle sheath.
Background
A blood collection needle is a medical instrument for collecting blood during medical examination, and is one of the most widely sold medical instrument products in the world. However, when the medical staff uses the blood taking needle, the needle is broken or the medical staff is improperly operated, so that the medical staff is easily injured; according to incomplete statistics, the number of wounds of medical staff caused by blood sampling needles is up to millions of people every year, wherein at least thousands of blood sampling needles are attached with various viruses such as hepatitis B virus, hepatitis C virus and HIV infection, and the medical staff caused by the blood sampling needles are easy to be infected.
Although companies at home and abroad successively invest in the research and development of safe blood sampling medical equipment to make blood sampling needles on the market have a variety of varieties, the blood sampling needles on the market still have the following defects:
1. after medical personnel finish using the blood taking needle to take a blood sample, residual blood in the blood taking needle can flow out from the blood taking needle, so that the pollution is easily caused, and if viruses exist in the blood, the disease transmission is more easily caused.
2. Because the existing blood taking needle needs to ensure the use safety of the blood taking needle and ensure that the blood taking needle can normally collect blood, a vacuum blood collecting bottle is generally adopted to collect the blood, so that the use range of the blood taking needle is limited (for example, the collected blood is put into a non-vacuum and non-bottle-shaped vessel).
3. The existing blood taking needle has the disadvantages of complex structure, complex use, difficult guarantee of safety performance and higher production cost.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a novel blood taking needle sheath, which solves the problems that after the existing blood taking needle is used, blood can flow out of the blood taking needle, and pollution and disease propagation are easily caused; the application range is limited, the structure is complex, the use is complicated, the production cost is high, the safety performance is difficult to ensure, and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a novel blood taking needle sheath comprises a blood taking needle and a connecting hose, wherein a blood taking needle accommodating pipe is sleeved at the joint of the blood taking needle and the connecting hose, and is fixedly connected with one end, far away from the blood taking needle, of the blood taking needle accommodating pipe; the blood taking needle receiving pipe is internally provided with a containing cavity, and the blood taking needle can move along the axial direction of the blood taking needle receiving pipe and can completely enter the blood taking needle receiving pipe; a blood taking needle protective cover is sleeved outside the blood taking needle;
a push rod is arranged at one end of the blood taking needle close to the connecting hose, and a push rod groove matched with the push rod is arranged at the right end of the blood taking needle accommodating pipe; the top surface of the blood taking needle accommodating pipe is provided with a handle;
a strip-shaped opening parallel to the axis of the blood taking needle storage tube is arranged on the front side of the blood taking needle storage tube, elastic blocks are arranged on opposite surfaces of the strip-shaped opening, and the push rod can slide in the strip-shaped opening;
one end, far away from the blood taking needle, of the connecting hose is fixedly connected with a puncture needle protective cover, a puncture needle is arranged in the puncture needle protective cover, the puncture needle is connected with the connecting hose through an adjusting assembly, and the adjusting assembly is used for pushing the puncture needle to move back and forth along the axial direction of the puncture needle and enabling the puncture needle to be connected with or separated from the connecting hose;
and a sealing block which can be penetrated by the puncture needle is arranged in one end of the connecting hose close to the puncture needle.
Preferably, the adjusting assembly comprises a cylindrical fixing frame fixedly connected with the connecting hose, the horizontal section of the fixing frame is U-shaped, and an opening of the fixing frame is positioned on the left side; the fixing frame is inserted into a cylindrical connecting frame at one end far away from the connecting hose, and the horizontal section of the connecting frame is M-shaped; the puncture needle penetrates through the connecting frame and is fixedly connected with the connecting frame; a puncture needle spring is arranged between the fixed frame and the connecting frame, one end of the puncture needle spring is connected with the fixed frame, the other end of the puncture needle spring is connected with the connecting frame, and the puncture needle penetrates through the puncture needle spring and corresponds to the sealing block; the axes of the fixing frame, the connecting frame, the puncture needle spring and the puncture needle are all on the same horizontal line.
Preferably, the connecting frame comprises a first cylinder, a second cylinder is arranged in the first cylinder, a gap is formed between the inner side surface of the first cylinder and the outer side surface of the second cylinder, and the gap can be inserted into the fixing frame;
the first cylinder and the second cylinder are fixedly connected at one end far away from the fixed frame through an annular plate; and a pushing plate is fixedly arranged at one end of the second cylinder close to the fixed frame, a fixed hole fixedly connected with the puncture needle is formed in the center of the pushing plate, and the pushing plate is fixedly connected with the puncture needle spring.
Preferably, the upper side and the lower side of the connecting frame are both provided with barrel-shaped adjusting columns, and the connecting frame is provided with adjusting column grooves matched with the adjusting columns; an adjusting spring is arranged in the adjusting column, a fixing column is arranged in the groove of the adjusting column, and the fixing column is connected with the adjusting spring; two clamping columns are symmetrically arranged on the outer peripheral sides of the adjusting columns, and clamping column grooves matched with the clamping columns are formed in the adjusting column grooves; the clamping column groove consists of a vertical groove and an inclined groove, the lower end of the vertical groove is connected with the lower end of the inclined groove, the top surface of the vertical groove is higher than that of the inclined groove, and the included angle between the vertical groove and the inclined groove is less than 90 degrees; the clamping column can slide in the clamping column groove.
Preferably, both sides all are equipped with the rectangle opening about the pjncture needle protection casing, the long limit inboard of rectangle opening is equipped with the limiting plate, the long limit of rectangle opening with the pjncture needle axis is parallel, adjust the post and can slide in the rectangle opening.
Preferably, the sealing block is made of rubber.
Preferably, the connection hose is made of a transparent material.
The invention has the beneficial effects that:
1. the folding hose of blood taking needle one end is accomodate into and is held the chamber, and is equipped with sealed piece in the folding hose of puncture needle end, has effectively prevented after blood collection finishes, and the blood that persists in the folding hose flows out, avoids blood pollution and disease propagation, the effectual safety that has ensured medical personnel.
2. Through the matching of the connecting frame and the fixing frame, the puncture needle is driven to move back and forth along the axial direction of the puncture needle under the action of the puncture needle spring, so that the product is suitable for a vacuum blood collection bottle; the connecting frame is driven by the adjusting column, so that the puncture needle is driven to move, the product is suitable for non-vacuum blood collection bottles or non-bottle-shaped blood collection vessels, and the application range of the product is expanded. Especially, this product pjncture needle is located pjncture needle protection casing all the time, avoids medical personnel to be stabbed at the in-process of using this product, improves the security performance of this product.
3. This product is gathering blood and finishing the back, and blood taking needle and pjncture needle can not expose outside all the time, have effectively improved the security performance of this product, and especially this product is after the use, handles the recovery stage, avoids stabbing the staff.
4. The product has simple structure, convenient use, effective guarantee of the use safety of the product and low cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a front view of the new lancet of this embodiment;
FIG. 2 is a front view of the lancet in the present embodiment;
FIG. 3 is a schematic view showing a structure of the lancet receiving tube in the present embodiment;
FIG. 4 is a schematic view of the right side view of the lancet of the present embodiment;
FIG. 5 is a schematic view showing a right side view of the lancet of the present embodiment when the lancet is not inserted into the lancet receiving tube;
FIG. 6 is a schematic view of a right side view of the lancet of the present embodiment when the lancet enters the lancet receiving tube;
FIG. 7 is an enlarged partial schematic view of area A of FIG. 1;
FIG. 8 is a schematic top view showing the structure of the puncture needle shield according to the present embodiment;
FIG. 9 is a schematic structural view of the connecting frame of the present embodiment;
FIG. 10 is a schematic sectional view of the connecting frame of the present embodiment;
fig. 11 is a schematic structural view of the bayonet groove in the present embodiment.
Description of the drawings:
11, blood taking needle 12: the handle 13: blood taking needle storage tube
14: the accommodation chamber 15: the puncture needle shield 16: fixing frame
17: the sealing block 18: puncture needle spring 19: connecting frame
20: puncture needle 21: the lancet cover 22: connecting hose
31: push rod groove 32: elastic block
41: push rod
71: adjusting the column 72: the adjusting spring 73: clamp column
74: fixing a column 75: the column-engaging groove 81: limiting plate
91: the push plate 92: fixing hole 93: a first cylinder
94: a second cylinder.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, the practical directional terms such as "upper, lower, left, right" generally refer to upper, lower, left, right as shown in the drawings, unless otherwise specified; "inner and outer" refer to the inner and outer relative to the profile of the components themselves.
Referring to fig. 1 to 10, a novel blood lancet sheath comprises a blood lancet 11 and a connecting hose 22, wherein the connecting hose 22 is made of a transparent material, so that the circulation of blood can be observed conveniently; a blood taking needle accommodating tube 13 is sleeved at the joint of the blood taking needle 11 and the connecting hose 22, and one end of the blood taking needle accommodating tube 13 far away from the blood taking needle 11 is fixedly connected with the connecting hose 22; an accommodating cavity 14 is formed in the blood taking needle accommodating tube 13, the inner diameter of the blood taking needle accommodating tube 13 is the same as the outer diameter of the blood taking needle 11, the inner diameter of the accommodating cavity 14 is larger than the outer diameter of the blood taking needle 11, and the blood taking needle 11 can move along the axial direction of the blood taking needle accommodating tube 13 and can completely enter the blood taking needle accommodating tube 13; specifically, when the blood collection needle 11 enters the blood collection needle accommodating tube 13, one end of the blood collection needle accommodating tube 13 is fixedly connected with the connecting hose 22, so that the connecting hose 22 in the blood collection needle accommodating tube 13 enters the accommodating cavity 14 along with the continuous movement of the blood collection needle 11 into the blood collection needle accommodating tube 13 and is stored in the accommodating cavity 14 in a folded or stacked manner; the outer side of the blood taking needle 11 is sleeved with a blood taking needle protective cover 21, a fixing bulge (not shown in the figure) is arranged at the joint of the blood taking needle 11 and the blood taking needle protective cover 21 in the embodiment, a fixing groove (not shown in the figure) matched with the fixing bulge is arranged on the inner side of the blood taking needle protective cover 21, and the fixing bulge is matched with the fixing groove, so that the stability of the blood taking needle protective cover 21 is improved, and the blood taking needle protective cover 21 is prevented from automatically falling; a push rod 41 is arranged at one end of the blood collection needle 11 close to the connecting hose 22, and a push rod groove 31 (shown in fig. 3) matched with the push rod 41 is arranged at the right end of the blood collection needle accommodating pipe 13; the handle 12 is arranged on the top surface of the blood taking needle accommodating pipe 13, so that medical staff can take blood conveniently; the push rod 41 is fixedly connected with the blood taking needle 11, and when blood is taken, the push rod 41 is positioned in the push rod groove 31, so that the stability of the blood taking needle 11 is guaranteed;
a strip-shaped opening (shown in figures 1 and 2) parallel to the axis of the blood taking needle accommodating tube 13 is arranged at the front side of the blood taking needle accommodating tube 13, elastic blocks 32 are arranged on opposite surfaces of the strip-shaped opening, and the push rod 41 can slide in the strip-shaped opening;
one end of the connecting hose 22, which is far away from the blood collection needle 11, is fixedly connected with a puncture needle protective cover 15, a puncture needle 20 is arranged in the puncture needle protective cover 15, the puncture needle 20 is connected with the connecting hose 22 through an adjusting component, and the adjusting component is used for pushing the puncture needle 20 to move back and forth along the axial direction of the puncture needle 20 and enabling the puncture needle 20 to be connected with or separated from the connecting hose 22;
the connecting hose 22 is provided with a sealing block 17 which can be penetrated by the puncture needle 20 inside and close to one end of the puncture needle 20; the sealing block 17 in this embodiment is made of rubber, and not only can be penetrated by the puncture needle 20, but also the sealing block 17 can still achieve the sealing effect when the puncture needle 20 is separated from the sealing block 17.
Specifically, as shown in fig. 1 to 6, the included angle between the strip-shaped opening and the push rod groove 31 is 90 degrees, and the push rod 41 is located in the push rod groove 31; after blood collection is finished, the push rod 41 is poked to slide out of the push rod groove 31, the push rod 41 rotates by 90 degrees to enter the strip-shaped opening of the blood taking needle accommodating tube 13, then a force close to the direction of the puncture needle 20 is applied to the push rod 41, the push rod 41 slides in the strip-shaped opening to drive the blood taking needle 11 to enter the blood taking needle accommodating tube 13, and after the push rod 41 passes through the elastic block 32 in the strip-shaped opening, the push rod 41 is prevented from rebounding under the blocking of the elastic block 32; because blood taking needle storage tube 13 is keeping away from the one end of blood taking needle 11 with coupling hose 22 links firmly, so at the in-process that blood taking needle 11 got into blood taking needle storage tube 13, the inside coupling hose 22 of blood taking needle storage tube 13 gets into with folding form and holds chamber 14, plays the function of sealing coupling hose 22, and the effectual blood that prevents flows out avoids the propagation of blood pollution and disease, protects medical personnel's self safety.
Further, referring to fig. 1 and 2, the adjusting assembly includes a cylindrical fixing frame 16 fixedly connected to the connecting hose 22, the horizontal section of the fixing frame 16 is U-shaped, and the opening of the fixing frame is located on the left side; the fixed frame 16 is inserted into a cylindrical connecting frame 19 at the end far away from the connecting hose 22, and the connecting frame 19 is M-shaped in horizontal section (see fig. 9 and 10); the left side of the fixed frame 16 is opened and can be inserted into the connecting frame 19; the puncture needle 20 penetrates through the connecting frame 19 and is fixedly connected with the connecting frame 19;
a puncture needle spring 18 is arranged between the fixed frame 16 and the connecting frame 19, one end of the puncture needle spring 18 is connected with the fixed frame 16, the other end of the puncture needle spring 18 is connected with the connecting frame 19, and the puncture needle 20 penetrates through the puncture needle spring 18 and corresponds to the sealing block 17; the holder 16, the connecting frame 19, the puncture needle spring 18 and the puncture needle 20 are all on the same axis. Specifically, as shown in fig. 1, 2, 9 and 10, since the puncture needle spring 18 is arranged between the fixed frame 16 and the connecting frame 19, the puncture needle 20 is fixedly connected with the connecting frame 19; therefore, when blood is collected, a blood collection bottle is selected, the bottle mouth of the blood collection bottle extends into the puncture needle protection cover 15 (the left end of the puncture needle protection cover 15 is opened), the bottle mouth of the blood collection bottle is contacted with the connecting frame 19 and pushes the connecting frame 19, the puncture needle 20 is pushed by the connecting frame 19 to move towards the direction of the connecting hose 22 until the puncture needle 20 punctures the sealing block 17, and therefore the puncture needle 20 is communicated with the connecting hose 22; when the blood collection bottle is released, the puncture needle spring 18 pushes the connecting frame 19 to move in a direction away from the connecting tube 22, so that the puncture needle 20 is separated from the connecting tube 22 and the collection of blood is completed. Since the sealing block 17 in this embodiment is made of rubber, after the puncture needle 20 is detached from the sealing block 17, the sealing block 17 can still seal the connection hose 22, so as to ensure that the blood in the connection hose 22 does not flow out, thereby improving the safety in blood collection.
Further, referring to fig. 9 and 10, the connecting frame 19 includes a first cylinder 93, a second cylinder 94 is disposed inside the first cylinder 93, and a gap is formed between an inner side surface of the first cylinder 93 and an outer side surface of the second cylinder 94, and the gap can be inserted by the fixing frame 16, so that the side wall of the fixing frame 16 can reciprocate in the gap;
the first cylinder 93 and the second cylinder 94 are fixedly connected at one end far away from the fixed frame 16 through an annular plate, and when blood is collected, the annular plate is pushed by the mouth of the blood collection bottle; a pushing plate 91 is fixedly arranged at one end of the second cylinder 94 close to the fixed frame 16, a fixed hole 92 fixedly connected with the puncture needle 20 is arranged at the center of the pushing plate 91, and the pushing plate 91 is fixedly connected with the puncture needle spring 18.
Further, as shown in fig. 1, 2, 7, 8, 9, and 11, the upper and lower sides of the connecting frame 19 are both provided with barrel-shaped adjusting posts 71, and the connecting frame 19 is provided with adjusting post grooves (shown in fig. 7) which are matched with the adjusting posts 71; an adjusting spring 72 is arranged in the adjusting column 71, a fixing column 74 is arranged in the groove of the adjusting column, and the fixing column 74 is connected with the adjusting spring 72; two clamping columns 73 are symmetrically arranged on the outer peripheral side of the adjusting column 71, and clamping column grooves 75 matched with the clamping columns 73 are formed in the adjusting column grooves; as shown in fig. 11, the clamping column groove consists of a vertical groove and an inclined groove, the lower end of the vertical groove is connected with the lower end of the inclined groove, the top surface of the vertical groove is higher than that of the inclined groove, and the included angle between the vertical groove and the inclined groove is less than 90 degrees; the clamping column 73 can slide in the clamping column groove 75; referring to fig. 8, rectangular openings are formed in the upper side and the lower side of the puncture needle protective cover 15, and limiting plates 81 are arranged on the inner sides of the long sides of the rectangular openings, so that the rectangular openings are U-shaped, the long sides of the rectangular openings are parallel to the axis of the puncture needle 20, and the adjusting columns 71 can slide in the rectangular openings; specifically, when the adjusting column 71 is not pressed (see fig. 7), the clamping column 73 is located at the top end of the inclined groove, the top surface of the adjusting column 71 is lower than the inner side surface of the puncture needle shield 15, and the adjusting column 71 moves in the puncture needle shield 15 along with the connecting frame 19; pressing the top surface of adjusting post 71, card post 73 moves down in the slope recess, stops pressing adjusting post 71 when moving to the junction of vertical recess and slope recess, and under adjusting spring 72's effect this moment, card post 73 gets into vertical recess, and then makes the vertical rebound of adjusting post 71, and when card post 73 moved to vertical recess top, adjusting post 71 stretched out pjncture needle protection casing 15.
After the adjusting column 71 extends out of the puncture needle protective cover 15, the adjusting column 71 is pushed to move in the rectangular opening (because the limiting plate 81 is arranged on the long side of the rectangular opening, and the rectangular opening is in a U shape, the adjusting column 71 does the U-shaped movement in the rectangular opening), thereby driving the connecting frame 19 to move and further driving the puncture needle 20 to move. Referring to fig. 8, when the adjustment post 71 moves to the right of the stopper plate 81, the stopper plate 81 restricts the adjustment post 71 from moving to the left, ensuring stability of the puncture needle 20.
In operation, the blood taking needle protective cover 21 is taken down, the handle 12 is held to take blood, after blood enters the connecting hose 22, the blood taking bottle extends into the puncture needle protective cover 15, the connecting frame 19 is pushed by the opening of the blood taking bottle, and the puncture needle 20 is driven to move towards the connecting hose 22 and puncture the sealing block 17 under the driving of the connecting frame 19, so that the blood enters the blood taking bottle; after the blood collection is completed, the blood collection bottle is removed, and the connection frame 19 is pushed away from the connection tube 22 by the elastic force of the puncture needle spring 18, so that the puncture needle 20 is separated in the sealing block 17.
If a non-vacuum blood collection vessel which cannot enter the puncture needle protective cover 15 is selected, the adjusting column 71 is pressed to enable the adjusting column 71 to extend out of the puncture needle protective cover 15, the clamping column 73 on the adjusting column 71 is clamped with the clamping column groove 75 on the connecting frame 19, then the adjusting column 71 is pushed to move towards the direction of the blood collection needle 11 in the rectangular opening, the connecting frame 19 drives the puncture needle 20 to move towards the connecting hose 22 under the driving of the adjusting column 71, and when the puncture needle 20 punctures the sealing block 17, the adjusting column 71 is located on the right side of the limiting plate 81 at the moment to prevent the adjusting column 71 from rebounding (because the puncture needle spring 18 is in a compressed state at the moment); after the blood collection is finished, the adjusting column 71 is pushed to return to the original position, so that the puncture needle 20 is separated from the sealing block 17.
After the blood collection operation is finished, the push rod 41 is pushed to slide out of the push rod groove 31, so that the push rod 41 rotates by 90 degrees to enter the strip-shaped opening of the blood taking needle accommodating tube 13, then a force close to the direction of the puncture needle 20 is applied to the push rod 41, the push rod 41 slides in the strip-shaped opening to drive the blood taking needle 11 to enter the blood taking needle accommodating tube 13, and after the push rod 41 passes through the elastic block 32 in the strip-shaped opening, the push rod 41 is prevented from rebounding under the blocking of the elastic block 32; because the blood taking needle storage tube 13 is keeping away from the one end of blood taking needle 11 with coupling hose 22 links firmly, so at the in-process that blood taking needle 11 got into blood taking needle storage tube 13, the inside coupling hose 22 of blood taking needle storage tube 13 got into with folding form and holds chamber 14, and the effectual blood that prevents flows out avoids the propagation of blood pollution and disease, protects medical personnel's self safety.
In a word, after the product is used, the blood taking needle 11 is completely collected in the blood taking needle storage tube 13, so that the blood taking needle 11 is prevented from stabbing medical staff; the connecting hose 22 at the end of the blood taking needle 11 enters the accommodating cavity 14 in a folding way, and the blood in the connecting hose 22 is effectively prevented from flowing out of the blood taking needle 11; the puncture needle 20 is always positioned in the puncture needle protective cover 15 to avoid stabbing medical personnel, and the inner part of one end, close to the puncture needle 20, of the connecting hose 22 is sealed by the sealing block 17, so that blood in the connecting hose 22 is effectively prevented from flowing out. The fixing frame 16 is matched with the connecting frame 19 in an inserting way, and the puncture needle 20 is driven to move by pushing the opening of the blood collection bottle, so that the vacuum blood collection bottle can be suitable for a vacuum blood collection bottle; through the regulation post 71 on the promotion link 19, and then promote link 19, finally make pjncture needle 20 remove, applicable in non-vacuum blood sampling bottle or other non-vacuum wares, enlarged the application scope of this product.
The above embodiments are only preferred embodiments of the present invention, and it should be understood that the above embodiments are only for assisting understanding of the method and the core idea of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalents and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a novel blood taking needle sheath, includes blood taking needle and coupling hose, its characterized in that: a blood taking needle accommodating pipe is sleeved at the joint of the blood taking needle and the connecting hose, and one end of the blood taking needle accommodating pipe, which is far away from the blood taking needle, is fixedly connected with the connecting hose; the blood taking needle receiving pipe is internally provided with a containing cavity, and the blood taking needle can move along the axial direction of the blood taking needle receiving pipe and can completely enter the blood taking needle receiving pipe; a blood taking needle protective cover is sleeved outside the blood taking needle;
a push rod is arranged at one end of the blood taking needle close to the connecting hose, and a push rod groove matched with the push rod is arranged at the right end of the blood taking needle accommodating pipe; the top surface of the blood taking needle accommodating pipe is provided with a handle;
a strip-shaped opening parallel to the axis of the blood taking needle storage tube is arranged on the front side of the blood taking needle storage tube, elastic blocks are arranged on opposite surfaces of the strip-shaped opening, and the push rod can slide in the strip-shaped opening;
one end, far away from the blood taking needle, of the connecting hose is fixedly connected with a puncture needle protective cover, a puncture needle is arranged in the puncture needle protective cover, the puncture needle is connected with the connecting hose through an adjusting assembly, and the adjusting assembly is used for pushing the puncture needle to move back and forth along the axial direction of the puncture needle and enabling the puncture needle to be connected with or separated from the connecting hose;
and a sealing block which can be penetrated by the puncture needle is arranged in one end of the connecting hose close to the puncture needle.
2. A novel blood collection needle sheath according to claim 1, characterized in that: the adjusting assembly comprises a cylindrical fixing frame fixedly connected with the connecting hose, the horizontal section of the fixing frame is U-shaped, and the opening of the fixing frame is positioned on the left side; the fixing frame is inserted into a cylindrical connecting frame at one end far away from the connecting hose, and the horizontal section of the connecting frame is M-shaped; the puncture needle penetrates through the connecting frame and is fixedly connected with the connecting frame; a puncture needle spring is arranged between the fixed frame and the connecting frame, one end of the puncture needle spring is connected with the fixed frame, the other end of the puncture needle spring is connected with the connecting frame, and the puncture needle penetrates through the puncture needle spring and corresponds to the sealing block; the axes of the fixing frame, the connecting frame, the puncture needle spring and the puncture needle are all on the same horizontal line.
3. A novel blood collection needle sheath according to claim 2, characterized in that: the connecting frame comprises a first cylinder, a second cylinder is arranged in the first cylinder, a gap is formed between the inner side surface of the first cylinder and the outer side surface of the second cylinder, and the gap can be inserted into the fixing frame;
the first cylinder and the second cylinder are fixedly connected at one end far away from the fixed frame through an annular plate; and a pushing plate is fixedly arranged at one end of the second cylinder close to the fixed frame, a fixed hole fixedly connected with the puncture needle is formed in the center of the pushing plate, and the pushing plate is fixedly connected with the puncture needle spring.
4. A novel blood collection needle sheath according to claim 2, characterized in that: barrel-shaped adjusting columns are arranged on the upper side and the lower side of the connecting frame, and adjusting column grooves matched with the adjusting columns are formed in the connecting frame; an adjusting spring is arranged in the adjusting column, a fixing column is arranged in the groove of the adjusting column, and the fixing column is connected with the adjusting spring; two clamping columns are symmetrically arranged on the outer peripheral sides of the adjusting columns, and clamping column grooves matched with the clamping columns are formed in the adjusting column grooves; the clamping column groove consists of a vertical groove and an inclined groove, the lower end of the vertical groove is connected with the lower end of the inclined groove, the top surface of the vertical groove is higher than that of the inclined groove, and the included angle between the vertical groove and the inclined groove is less than 90 degrees; the clamping column can slide in the clamping column groove.
5. A novel blood collection needle sheath according to claim 1, characterized in that: both sides all are equipped with the rectangle opening about the pjncture needle protection casing, the long limit inboard of rectangle opening is equipped with the limiting plate, the long limit of rectangle opening with the pjncture needle axis is parallel, adjust the post and can slide in the rectangle opening.
6. A novel blood collection needle sheath according to claim 1, characterized in that: the sealing block is made of rubber.
7. A novel blood collection needle sheath according to claim 1, characterized in that: the connecting hose is made of transparent materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010781096.5A CN111904436B (en) | 2020-08-06 | 2020-08-06 | Blood taking needle sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010781096.5A CN111904436B (en) | 2020-08-06 | 2020-08-06 | Blood taking needle sheath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111904436A true CN111904436A (en) | 2020-11-10 |
| CN111904436B CN111904436B (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010781096.5A Active CN111904436B (en) | 2020-08-06 | 2020-08-06 | Blood taking needle sheath |
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| JP2004147750A (en) * | 2002-10-29 | 2004-05-27 | Nipro Corp | Blood sampling vessel holder |
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| WO2014019192A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Integral vacuum blood collection apparatus with indwelling catheter |
| CN204468966U (en) * | 2015-01-30 | 2015-07-15 | 北华大学 | The hemodialysis puncture of internal arteriovenous fistula pin improved |
| CN106859668A (en) * | 2017-03-14 | 2017-06-20 | 顾虹 | One kind blood sampling needle part and blood lancet device |
| CN107440727A (en) * | 2017-08-28 | 2017-12-08 | 刘贞宽 | Disposable venous blood collect needle（Anti-reverse flow pattern） |
| CN208769792U (en) * | 2017-12-29 | 2019-04-23 | 华中科技大学同济医学院附属协和医院 | Integral type hemostix |
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| CN108378859A (en) * | 2018-03-23 | 2018-08-10 | 圣光医用制品股份有限公司 | Disposable anti-needle pierces vein blood taking needle |
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