CN118059346B - Remaining needle assembly with anti-interference hemostatic clamp - Google Patents
Remaining needle assembly with anti-interference hemostatic clamp Download PDFInfo
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- CN118059346B CN118059346B CN202410484581.4A CN202410484581A CN118059346B CN 118059346 B CN118059346 B CN 118059346B CN 202410484581 A CN202410484581 A CN 202410484581A CN 118059346 B CN118059346 B CN 118059346B
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- 230000002439 hemostatic effect Effects 0.000 title claims abstract description 15
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000012377 drug delivery Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 14
- 238000001802 infusion Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 210000004204 blood vessel Anatomy 0.000 description 10
- 210000003811 finger Anatomy 0.000 description 7
- 238000001647 drug administration Methods 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003405 preventing effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an indwelling needle assembly with an anti-interference hemostatic clip, which relates to the technical field of medical equipment and comprises an extension tube, wherein the surface of the extension tube is sleeved with a hemostatic clip matrix; the front surface of the flow stopping clamp base body is composed of a pair of oval-shaped structures, the top surfaces of the left side and the right side of the flow stopping clamp base body are integrally formed with outer wings, a V-shaped part and an arc-shaped part are arranged in the inner area of the oval-shaped structure frame, one ends of the V-shaped part and the arc-shaped part are connected with the flow stopping clamp base body, the other ends of the V-shaped part and the arc-shaped part are not connected and are opened, and the V-shaped tip of the V-shaped part points to the extension tube. Through improving the structure, the opening and closing operation of the flow stopping clamp can be carried out opposite force in the same side far away from the extension pipe, the traction effect of the flow stopping clamp operation on the indwelling needle pipeline is effectively avoided, the stability of the indwelling needle penetrating form and the comfort level of a patient in the treatment process are ensured, the infusion treatment effect of the subsequent indwelling needle is ensured, and meanwhile, the safety of the indwelling needle in use is increased.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to an indwelling needle assembly with an anti-interference hemostatic clip.
Background
The venous indwelling needle is also called venous trocar, the core component parts comprise a soft administration cavity/sleeve which can be indwelled in a blood vessel and a stainless steel puncture guiding needle core, when the venous indwelling needle is used, the administration cavity and the needle core are punctured into the blood vessel together, and after the administration cavity completely enters the blood vessel, the needle core is withdrawn, and only the soft administration cavity is reserved in the blood vessel, so that transfusion treatment is carried out.
It still has some drawbacks in practical use, such as: after the existing indwelling needle is inserted into a blood vessel of a patient, blood in the patient flows backwards through the drug feeding cavity after the needle core of the indwelling needle is pulled out, and enters the extension tube connected with the indwelling needle in a three-way mode, in order to prevent backflow, the traditional mode is used for buckling through the single-hand clamp, so that the channel in the extension tube is pressed down and closed, however, when the traditional single-hand clamp is closed and opened, the traditional single-hand clamp is required to exert force on two sides close to the extension tube simultaneously, a certain degree of traction effect is caused on the extension tube and the drug feeding cavity, the stability of the inserting form of the indwelling needle is damaged, the infusion treatment effect of the indwelling needle is affected, and the safety is low.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide an indwelling needle assembly with an anti-interference hemostatic clip, by which the opening and closing operations of the hemostatic clip can be performed in opposite directions on the same side far away from the hose, so as to effectively avoid the pulling action of the hemostatic clip operation on the indwelling needle pipeline, protect the stability of the puncturing form of the indwelling needle, ensure the infusion treatment effect of the subsequent indwelling needle, increase the safety of the indwelling needle in use, and improve the comfort level of the patient in treatment, so as to solve the problems set forth in the above-mentioned background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the indwelling needle assembly with the anti-interference hemostatic clamp comprises a dosing joint, wherein one end of the dosing joint is communicated with an extension tube, the other end of the extension tube is communicated with an operation tube body, the outlet end of the operation tube body is a dosing cavity, a steel needle is embedded and installed at the end part of the dosing cavity, a sleeve is sleeved on the periphery of the steel needle, and a hemostatic clamp substrate is movably sleeved on the surface of the extension tube;
the front surface of the flow stopping clamp base body is formed by a pair of oval structural frames which are symmetrically distributed through a bent plate body, outer wings are integrally formed on the top surfaces of the left side and the right side of the flow stopping clamp base body, and extend towards the direction deviating from the flow stopping clamp base body;
The inner area of the oval structure frame is provided with a V-shaped part and an arc-shaped part, one end of the V-shaped part and one end of the arc-shaped part are both connected with the flow stopping clamp base body, the other ends of the V-shaped part and the arc-shaped part are both opened without connection, and the V-shaped tip of the V-shaped part points to the extension tube;
the bottom end of the flow stopping clamp base body is integrally provided with a convex part, and the convex part protrudes towards the direction of the V-shaped part; the extension tube is located between the V-shaped portion and the male portion;
the left side and the right side of the flow stopping clamp base body are respectively provided with a pair of expansion wings, and the expansion wings twist towards the direction away from the central line of the flow stopping clamp base body, so that two adjacent expansion wings clamp to form an involute opening area.
The side face of the flow stopping clamp base body is provided with a strip-shaped hole.
Further, one face of the open end of the V-shaped part, which is away from the arc-shaped part, is provided with a type sawtooth array body, the type sawtooth array body is formed by arranging a plurality of type sawtooth blocks, the arrangement direction of the type sawtooth array body is the same as the extending direction of the plate body of the V-shaped part, the type sawtooth blocks are right-angle triangular blocks, the right-angle sides of the type sawtooth blocks are away from the open end of the V-shaped part, one end of the type sawtooth array body, which is away from the open end of the V-shaped part, is provided with a type blunt tooth body, the type blunt tooth body is of a bump structure with an arc-shaped surface, and the thickness a of the type blunt tooth body and the length b of the right-angle sides of the type sawtooth blocks are consistent with: a is more than or equal to 2b;
The utility model discloses a V-arrangement portion of a motor vehicle, including V-arrangement portion, the open end of arc portion is gone up, deviating from the one side of V-arrangement portion is equipped with two type sawtooth array bodies, two type sawtooth array bodies are arranged by a plurality of two type sawtooth pieces and are constituteed, its arrangement direction with the plate body extending direction of arc portion is the same, two type sawtooth pieces are right angle triangular block, the right angle limit of two type sawtooth pieces deviates from the open end of arc portion, two type sawtooth array bodies are kept away from the one end of the open end of V-arrangement portion is equipped with two type blunt tooth bodies, two type blunt tooth bodies are the lug structure on arc surface, thickness x of two type blunt tooth bodies two right angle limit length y of two type sawtooth pieces accords with: x is more than or equal to 2y;
the surface profile of the first type sawtooth array body is matched with the surface profile of the second type sawtooth array body.
Further, the flow stopping clamp base body, the outer wing, the V-shaped part and the expansion wing are integrally formed by elastic materials.
Further, the whole of the outer wing is of an arc-shaped structure, and the outer wing is twisted towards a direction away from the central line of the flow stopping clamp matrix.
Further, the gap between the two expansion wings is 8 mm-12 mm.
Further, when the flow stopping clamp base body is in an open state, the open end of the V-shaped part is positioned above the open end of the arc-shaped part.
The invention has the technical effects and advantages that:
1. By improving the structure, the opening and closing operations of the flow stopping clamp can be carried out opposite force in the same side far away from the hose, so that the traction effect of the flow stopping clamp on the indwelling needle pipeline is effectively avoided, the stability of the puncturing form of the indwelling needle and the comfort level of a patient in the treatment process are ensured, the infusion treatment effect of the subsequent indwelling needle is ensured, and the safety of the indwelling needle in use is increased.
2. Through the structural design that the sawtooth array body and the blunt tooth body are respectively arranged on the V-shaped part and the arc-shaped part, a user only needs to apply opposite force on the same side far away from the extension tube, and can finish all operations of closing the pipeline, adjusting gears, expanding gaps and opening the pipeline, thereby effectively improving the switching performance of the indwelling needle pipeline, and further ensuring the stability of the puncture form of the indwelling needle and the subsequent infusion treatment effect.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the flow stop clip of the present invention when the base is opened;
FIG. 3 is a schematic view of a partial structure of the flow stop clip of the present invention when the base is open;
FIG. 4 is a schematic view of a three-dimensional assembly structure of the present invention;
FIG. 5 is a schematic diagram of the overall side structure of the present invention;
FIG. 6 is a schematic view of the structure of the flow stop clip of the present invention when the base is closed;
FIG. 7 is a schematic view of a partial structure of the present invention with the flow stop clip base closed.
The reference numerals are: 10. a dosing tab; 11. a dosing valve; 12. an end cap; 2. an extension tube; 30. operating the tube body; 31. a spacer plug; 32. a needle holder; 33. a dosing chamber; 4. a steel needle; 50. a flow stop clip base; 51. an outer wing; 52. a V-shaped portion; 53. an arc-shaped portion; 54. a male portion; 55. an expansion wing; 56. a bar-shaped hole; 60-one type of saw tooth array body; 61-a type of blunt tooth; 70-two-type saw tooth array body; 71-type double-ended cogs.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An indwelling needle assembly with an anti-interference hemostatic clip as shown in figures 1 to 2, comprising an administration hub 10, the administration hub 10 being closed at its inlet end by an administration valve 11 (open for administration), the administration hub 10 being closed at its side end opening by an end cap 12 (open for auxiliary administration);
The side end of the administration connector 10 is communicated with an extension tube 2, the other end of the extension tube 2 is communicated with an operation tube body 30, a separation plug 31 is arranged in the operation tube body 30, and the separation plug 31 can be used as an elastic sealing body after an indwelling needle is pulled out;
The outer part of the operating tube body 30 is fixedly sleeved with a needle holding handle 32 so as to facilitate the holding operation of the hand of the indwelling needle;
the outlet end of the operation tube body 30 is a drug administration cavity 33, the end part of the drug administration cavity 33 is embedded with a steel needle 4, the periphery of the steel needle is sleeved with a sleeve, so that the basic function of the indwelling needle is ensured, after the steel needle 4 is penetrated into a blood vessel of a patient, the steel needle 4 is pulled out to enable the sleeve on the periphery of the steel needle to be indwelled in the blood vessel of the patient, and the drug administration cavity 33 is used as a drug administration channel;
The surface of the extension tube 2 is movably sleeved with a flow stopping clamp matrix 50, so that after the steel needle 4 is penetrated, the flow stopping clamp matrix 50 is used as a backflow preventing component for blood;
The front surface of the flow-stopping clamp base 50 is formed by a bent plate body into a pair of oval structural frames which are symmetrically distributed, so that a basic opposite bent structural frame is provided;
The top surfaces of the left side and the right side of the flow stopping clamp base body 50 are integrally formed with outer wings 51, and the outer wings 51 extend towards the direction away from the flow stopping clamp base body 50; thus, the external wing 51 far away from the flow stopping clamp base body 50, the drug administration cavity 33 and the puncture part can carry out opposite clamping and exerting force, and the puncture part is prevented from being pulled;
The inner area of the oval structure frame is provided with a V-shaped part 52 and an arc-shaped part 53, one end of the V-shaped part 52 and one end of the arc-shaped part 53 are both connected with the flow stopping clamp base body 50, and the other ends of the V-shaped part 52 and the arc-shaped part 53 are not connected and are opened, so that when the oval structure frame is elastically contracted, the open ends of the V-shaped part 52 and the arc-shaped part 53 can be just clamped into a whole, and the contracted state of the flow stopping clamp base body 50 is maintained;
The V-shaped tip of the V-shaped portion 52 is directed toward the extension tube 2; when the oval frame is elastically contracted, the V-shaped tip of the V-shaped part 52 can just compress the extension tube 2 and close the extension tube 2, so that the closed state of the extension tube 2 is ensured to be maintained.
A convex portion 54 is integrally formed at the bottom end of the flow stop clip base 50, and the convex portion 54 protrudes toward the V-shaped portion 52; the extension tube 2 is located between the V-shaped portion 52 and the male portion 54; the convex part is used as a substrate carrier for clamping the extension pipe 2, and the convex cambered surface is used as a flexible contact surface, so that the compactness of a closed pipeline and the integrity of a contact pipe body part are ensured;
As shown in fig. 4-5, a pair of expansion wings 55 are respectively disposed on the left and right sides of the flow stopping clamp base 50, the expansion wings 55 twist in a direction away from the centerline of the flow stopping clamp base 50, so that two adjacent expansion wings 55 clamp to form an involute opening area, when an operator opens the flow stopping clamp base 50, two fingers can be embedded into the involute opening areas of the two groups of expansion wings 55 to clamp and exert force by using the guiding effect provided by the involute opening, thereby expanding the oval structural frame and releasing the clamping connection of the V-shaped part 52 and the arc-shaped part 53, so that the flow stopping clamp base 50 and the extension tube 2 recover to an open state, and simultaneously, the opening operation can be ensured to exert a force in the area away from the extension tube 2, so as to further avoid the puncture area from being pulled.
The strip-shaped hole 56 is formed in the side face of the flow stopping clamp base body 50, the width of the strip-shaped hole 56 is matched with the outer diameter of the extension tube 2, the strip-shaped hole 56 penetrates from one side of the flow stopping clamp base body 50 to the other side, the strip-shaped hole 56 is utilized to provide flexibility in penetrating and assembling of the extension tube 2, and the extension tube 2 is further prevented from being pulled.
Preferably, in this embodiment or other embodiments, as shown in fig. 2 to 3, one side of the open end of the V-shaped portion 52 facing away from the arc portion 53 is provided with a sawtooth array body 60, where the sawtooth array body 60 is formed by arranging a plurality of sawtooth blocks, the arrangement direction of the sawtooth array body is the same as the extending direction of the plate body of the V-shaped portion 52, the sawtooth blocks are right-angle triangular blocks, and the right-angle edges of the sawtooth blocks face away from the open end of the V-shaped portion 52, so that the right-angle edges of the sawtooth blocks can be used as barriers after the V-shaped portion 52 is buckled, and the hypotenuses of the sawtooth blocks can guide the buckled objects to smoothly transition, and the arrangement structure of the sawtooth blocks can facilitate the precise adjustment of buckling tightness, so as to promote the deformation degree of the oval circular frame of the flow stopping clamp base 50 and improve the closing compactness when closing the pipeline;
One end of the sawtooth array body 60, which is far away from the open end of the V-shaped part 52, is provided with a type of blunt tooth body 61, the type of blunt tooth body 61 is of a convex block structure with an arc surface, and the thickness a of the type of blunt tooth body 61 and the right-angle side length b of the type of sawtooth block accord with: a is more than or equal to 2b; therefore, when the V-shaped part 52 and the fastener are further clamped, the gap is opened to a larger gap by the aid of the blunt tooth body 61 with the thickness far larger than that of the sawtooth array body 60, and then the fastening mechanism is reset by means of elasticity, so that one-key opening and closing operation is further ensured to be carried out on the same side far away from the hose.
The two-type sawtooth array body 70 is arranged on one surface of the open end of the arc-shaped part 53, which is away from the V-shaped part 52, the two-type sawtooth array body 70 is formed by arranging a plurality of two-type sawtooth blocks, the arrangement direction of the two-type sawtooth array body is the same as the extending direction of the plate body of the arc-shaped part 53, the two-type sawtooth blocks are right-angle triangular blocks, the right-angle sides of the two-type sawtooth blocks are away from the open end of the arc-shaped part 53, the right-angle sides of the sawtooth blocks can be used as barriers after the arc-shaped part 53 is buckled, the bevel edges of the sawtooth blocks can guide a buckled object to smoothly transition, the arrangement structure of the plurality of sawtooth blocks can be favorable for precisely adjusting the buckling tightness, the deformation degree of the oval frame of the flow-stopping clamp base body 50 is improved, and the closed compactness is improved when a pipeline is closed;
The end of the second sawtooth array body 70, which is far away from the open end of the V-shaped part 52, is provided with a second blunt tooth body 71, the second blunt tooth body 71 is of a convex block structure with an arc surface, and the thickness x of the second blunt tooth body 71 and the right-angle side length y of the second sawtooth block accord with: x is more than or equal to 2y; therefore, when the arc-shaped part 53 and the buckling object are further clamped, the gap is opened to a larger gap by the aid of the two-type blunt tooth body 71 with the thickness far greater than that of the two-type saw tooth array body 70, and then the buckling mechanism is reset by utilizing elasticity, so that one-key opening and closing operation is further ensured to be carried out on the same side far from the hose.
The surface profile of the first saw tooth array body 60 is matched with the surface profile of the second saw tooth array body 70, so that the V-shaped part 52 and the arc-shaped part 53 which are arranged in an adhering way can have one-key buckling and resetting functions, and further, the flow stopping clamp base body 50 can be ensured to be opened and closed by one key on the same side far away from a hose, the pulling action is avoided, and the stability of the penetration form of the indwelling needle is protected.
In this embodiment, the gap between the two extending wings 55 is 8 mm-12 mm, so as to adapt to the size of the human finger, so that the finger clamping operation can easily open the gap between the extending wings 55.
In this embodiment, the whole of the outer wing is in an arc structure, and the outer wing is twisted towards a direction away from the centerline of the flow stopping clamp base body, so as to adapt to the external clamping force of the fingers of the human body, and ensure the stability of the clamping force.
Preferably, in this embodiment or other embodiments, the flow stopping clip body 50, the outer wing 51, the V-shaped portion 52 and the extension wing 55 are all made of elastic materials, and the outer surface of the flow stopping clip body 50 is of smooth surface structure, the side surface of the outer wing 51 is of frosted rough surface structure, and the whole outer wing 51 is of arc structure.
The implementation mode specifically comprises the following steps: the flow-stopping clamp base body 50, the outer wing 51, the V-shaped part 52 and the expansion wing 55 are made of elastic materials, so that each structure has high elasticity, high strength and excellent geometric stability, and the compression deformation and the expansion deformation of the flow-stopping clamp base body cannot be damaged when the flow-stopping clamp is used.
The working principle of the embodiment is as follows:
s1: the operator holds the needle handle 32, pierces the steel needle 4 into the blood vessel of the patient, takes out the steel needle 4 to leave the peripheral pipeline in the blood vessel to form an infusion path, and the extension tube 2 and the flow stopping clamp base body 50 are in an open state at this moment, and the open end of the V-shaped part 52 is positioned above the open end of the arc-shaped part 53 (as shown in fig. 2), so that the extrusion buckling under the subsequent clamping stress can be facilitated.
S2: because the steel needle 4 is taken out and blood in a blood vessel of a patient can flow backwards, the extension tube 2 is required to be closed at the moment, a user can clamp the outer sides of the two outer wings 51 by a clamping force (the operation can be completed by clamping with a thumb and an index finger), so that the oval structure frame of the flow stopping clamp matrix 50 is elastically contracted, the V-shaped part 52 is used for extruding the extension tube 2, meanwhile, the bottom end of the V-shaped part 52 and the top end of the convex part 54 can be mutually matched, so that the side surface of the extension tube 2 is jointly forced to extrude, the V-shaped part 52 is buckled below the arc-shaped part 53 to complete fixation (as shown in fig. 6), the closed state of the extension tube 2 is formed, the backflow preventing effect of the extension tube 2 is formed, and meanwhile, the traction action on a puncture part can be effectively avoided by the two outer wings 51 far away from the extension tube 2 are subjected to the opposite force, and the stability of the puncture form of the indwelling needle is protected;
S3: when the medicine feeding cavity is needed to be used for medicine feeding, the flow stopping clamp base body 50 needs to be opened at the moment, fingers are squeezed into the arc-shaped gradually-opened empty areas of the expansion wings 55 at the two sides of the flow stopping clamp base body 50, the oval structural frame of the flow stopping clamp base body 50 is opened by utilizing the clamping force of the two fingers, the V-shaped part 52 is separated from the buckling of the arc-shaped part 53, so that the flow stopping clamp base body 50 and the extension tube 2 are quickly opened to form an opened state of the flow stopping clamp base body 50, and the opening and closing operations of the flow stopping clamp can be carried out opposite force in the same side far away from a hose, so that the traction effect of the flow stopping clamp operation on an indwelling needle pipeline is effectively avoided, the stability of the puncture form of the indwelling needle is protected, the infusion treatment effect of the subsequent indwelling needle is ensured, the safety of the indwelling needle in use is increased, and the comfort degree of a patient in treatment is improved.
Preferably, in this embodiment or other embodiments, the working principle of the present invention further includes the following:
As shown in fig. 6-7, the user clamps the two outer wings 51 to exert force, so that the V-shaped portion 52 is buckled below the arc-shaped portion 53 and presses and closes the extension tube 2, at this time, if the extension tube 2 is not completely pressed, so that a gap channel still exists in the tube, the user only needs to continuously clamp the two outer wings 51 to exert force, so that the V-shaped portion 52 and the arc-shaped portion 53 further slide towards each other (as the arrow trend in fig. 7 tends to), the first saw-tooth array body 60 on the V-shaped portion 52 and the second saw-tooth array body 70 on the arc-shaped portion 53 can be meshed, and the right-angle edges of the saw-tooth blocks can be blocked to keep buckling stability (the buckling depth can be adjusted according to the gear depth of the saw-tooth array), at this time, the oval-shaped frame of the anti-flow clamp base 50 has generated a larger inward bending deformation degree, so that the V-shaped portion 52 can more tightly press the extension tube 2, thereby completely closing the inner gap channel of the extension tube 2, further ensuring the sealing compactness in the closed state of the needle tube, and avoiding the possibility of backflow of blood;
Meanwhile, when the user needs to reset the flow stopping clip base 50 in the saw tooth engagement state, the user only needs to continuously clamp the two outer wings to exert force, so that the V-shaped portion 52 and the arc-shaped portion 53 slide to a deeper gear (as shown by the arrow trend in fig. 7), at this time, the one type of blunt tooth body 61 on the V-shaped portion 52 and the two type of blunt tooth body 71 on the arc-shaped portion 53 can be mutually abutted, and since the thickness of the two types of blunt tooth bodies is far greater than that of the two saw tooth array bodies, the one type of blunt tooth body 61 and the two type of blunt tooth body 71 can be mutually abutted to prop the V-shaped portion 52 and the arc-shaped portion 53 open to a larger gap, and then the user only needs to instantaneously release the clamping force, the V-shaped portion 52 and the arc-shaped portion 53 can be reset by the elasticity of the flow stopping clip base 50 itself (the gap which is pre-propped by the saw tooth array can be avoided), and then the extension tube 2 can be restored to the open state. Because in the operation process, a user only needs to apply opposite force on the same side far away from the extension tube 2, and can finish all operations (closing a pipeline, adjusting gears, opening a gap and opening the pipeline), the traction effect of the operation of the stop clip on the indwelling needle pipeline can be further avoided while the opening and closing performance of the indwelling needle pipeline is improved, the stab form stability of the indwelling needle is protected, and the infusion treatment effect of the subsequent indwelling needle is ensured.
The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;
secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;
Finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (4)
1. An indwelling needle assembly with anti-interference hemostatic clip comprising an administration connector, characterized in that: one end of the drug delivery joint is communicated with an extension tube, one end of the extension tube is communicated with an operation tube body, the outlet end of the operation tube body is a drug delivery cavity, the end part of the drug delivery cavity is embedded and provided with a steel needle, the periphery of the steel needle is sleeved with a sleeve, and the surface of the extension tube is movably sleeved with a flow stopping clamp matrix;
the front surface of the flow stopping clamp base body is formed into a pair of oval structural frames by a bent plate body, outer wings are integrally formed on the top surfaces of the left side and the right side of the flow stopping clamp base body, and extend towards the direction deviating from the flow stopping clamp base body;
The inner area of the oval structure frame is provided with a V-shaped part and an arc-shaped part, one end of the V-shaped part and one end of the arc-shaped part are both connected with the flow stopping clamp base body, the other ends of the V-shaped part and the arc-shaped part are both opened without connection, and the V-shaped tip of the V-shaped part points to the extension tube;
the bottom end of the flow stopping clamp base body is integrally provided with a convex part, and the convex part protrudes towards the direction of the V-shaped part; the extension tube is located between the V-shaped portion and the male portion;
A pair of expansion wings are respectively arranged at the left side and the right side of the flow stopping clamp base body, and the expansion wings twist towards the direction away from the central line of the flow stopping clamp base body so that two adjacent expansion wings clamp to form an involute opening area;
The side surface of the flow stopping clamp base body is provided with a strip-shaped hole;
the one side that deviates from on the open end of V-arrangement portion is equipped with a type sawtooth array body, a type sawtooth array body is arranged by a plurality of type sawtooth pieces and is constituteed, its arrangement direction with the plate body extending direction of V-arrangement portion is the same, a type sawtooth piece is right angle triangular block, the right angle limit of type sawtooth piece deviates from the open end of V-arrangement portion, a type sawtooth array body is kept away from the one end of the open end of V-arrangement portion is equipped with a type blunt tooth body, a type blunt tooth body is the lug structure on arc surface, a type blunt tooth body's thickness a type sawtooth piece's right angle limit length b accords with: a is more than or equal to 2b;
The utility model discloses a V-arrangement portion of a motor vehicle, including V-arrangement portion, the open end of arc portion is gone up, deviating from the one side of V-arrangement portion is equipped with two type sawtooth array bodies, two type sawtooth array bodies are arranged by a plurality of two type sawtooth pieces and are constituteed, its arrangement direction with the plate body extending direction of arc portion is the same, two type sawtooth pieces are right angle triangular block, the right angle limit of two type sawtooth pieces deviates from the open end of arc portion, two type sawtooth array bodies are kept away from the one end of the open end of V-arrangement portion is equipped with two type blunt tooth bodies, two type blunt tooth bodies are the lug structure on arc surface, thickness x of two type blunt tooth bodies two right angle limit length y of two type sawtooth pieces accords with: x is more than or equal to 2y;
the surface profile of the first type sawtooth array body is matched with the surface profile of the second type sawtooth array body.
2. The indwelling needle assembly with anti-interference hemostatic clip according to claim 1, wherein: the whole of the outer wing is of an arc-shaped structure, and the outer wing is twisted towards the direction away from the central line of the flow stopping clamp base body.
3. The indwelling needle assembly with anti-interference hemostatic clip according to claim 1, wherein: the gap between the two expansion wings is 8 mm-12 mm.
4. The indwelling needle assembly with anti-interference hemostatic clip according to claim 1, wherein: when the flow stopping clamp base body is in an open state, the open end of the V-shaped part is positioned above the open end of the arc-shaped part.
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| CN202410484581.4A CN118059346B (en) | 2024-04-22 | 2024-04-22 | Remaining needle assembly with anti-interference hemostatic clamp |
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| CN118059346B true CN118059346B (en) | 2024-06-21 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208492975U (en) * | 2017-11-22 | 2019-02-15 | 上海普益医疗器械股份有限公司 | Perfusion tube S profiling easily resets flow-stopping clip |
| CN211272852U (en) * | 2019-09-29 | 2020-08-18 | 石清青 | Nursing venous indwelling needle |
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|---|---|---|---|---|
| JP3952492B2 (en) * | 2000-06-02 | 2007-08-01 | ニプロ株式会社 | Wing needle clamp |
| AU2002347812A1 (en) * | 2001-10-05 | 2003-04-22 | Medical Components, Inc. | Catheter information ring |
| GB2486389B (en) * | 2009-09-23 | 2015-08-05 | Avtar Singh Kashmirian | A pinch clamp |
| JP6290496B1 (en) * | 2017-06-08 | 2018-03-07 | ハナコメディカル株式会社 | One-touch clamp device |
| CN215690268U (en) * | 2021-07-07 | 2022-02-01 | 上海市肺科医院 | Be applied to thoracic drainage tube's flow stopping clamp |
| CN215780520U (en) * | 2021-08-11 | 2022-02-11 | 南方医科大学南方医院 | Catheter flow stopping clamp |
| CN215690596U (en) * | 2021-09-17 | 2022-02-01 | 玉溪市中医医院 | Retaining needle with clamping position mark |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208492975U (en) * | 2017-11-22 | 2019-02-15 | 上海普益医疗器械股份有限公司 | Perfusion tube S profiling easily resets flow-stopping clip |
| CN211272852U (en) * | 2019-09-29 | 2020-08-18 | 石清青 | Nursing venous indwelling needle |
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