CN213191769U - Anti-coagulation positive pressure indwelling needle - Google Patents

Anti-coagulation positive pressure indwelling needle Download PDF

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Publication number
CN213191769U
CN213191769U CN202020844533.9U CN202020844533U CN213191769U CN 213191769 U CN213191769 U CN 213191769U CN 202020844533 U CN202020844533 U CN 202020844533U CN 213191769 U CN213191769 U CN 213191769U
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China
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seat
needle
sleeve
coagulation
conduit
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CN202020844533.9U
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Chinese (zh)
Inventor
贾金保
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Henan Xinwei Medical Devices Co ltd
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Henan Xinwei Medical Devices Co ltd
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Priority to CN202020844533.9U priority Critical patent/CN213191769U/en
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Abstract

The application discloses needle is kept somewhere to anti-coagulation malleation, includes: the device comprises a sleeve, a needle tube, a sleeve seat, a needle seat, a conduit and a conduit connecting seat; one end of the sleeve is connected with the first end of the sleeve seat, and the interior of the sleeve seat is hollow; the sleeve is sleeved outside the first end of the needle tube; the inner wall of the second end of the sleeve seat is provided with threads; a needle handle is arranged at the second end of the needle tube, and the first end of the needle handle is accommodated and fixed in the needle body seat; the second end of the needle handle extends out of the needle body seat; further comprising: a spring valve assembly disposed in the conduit coupling socket; the spring valve assembly includes: supporting seat, bracing piece, compression spring and shutoff piece, the supporting seat is installed on the first end terminal surface in the conduit coupling seat. Through spring valve unit spare, activity butt is in the first end of pipe, when not having the injection thrust, realizes the closure to the pipe, simultaneously through setting up the draft tube of preventing congealing in the conduit coupling seat, realizes carrying out the water conservancy diversion to the injection that gets into the human body.

Description

Anti-coagulation positive pressure indwelling needle
Technical Field
The application relates to a blood coagulation prevention positive pressure indwelling needle, and belongs to the field of novel first-aid and rehabilitation devices.
Background
The venous indwelling needle is widely applied to various medical fields such as pediatrics, first aid and the like, and is widely applied to emergency medical treatment because the venous indwelling needle can be inserted into a human body once to effectively reserve an infusion hose in the human body for a period of time.
However, the indwelling needle disposed in the vein of the lower limb often causes thrombosis and coagulation in the cannula due to the blood return. Resulting in an inability to continue use. Only after the sleeve is removed, the needle is inserted again, which increases the pain of the patient.
SUMMERY OF THE UTILITY MODEL
The application provides a positive pressure blood coagulation prevention indwelling needle for solving the technical problems.
The application provides a needle is kept somewhere to anti-coagulation malleation, includes: the device comprises a sleeve, a needle tube, a sleeve seat, a needle seat, a conduit and a conduit connecting seat;
one end of the sleeve is connected with the first end of the sleeve seat, and the interior of the sleeve seat is hollow; the sleeve is sleeved outside the first end of the needle tube;
the inner wall of the second end of the sleeve seat is provided with threads;
a needle handle is arranged at the second end of the needle tube, and the first end of the needle handle is accommodated and fixed in the needle body seat;
the second end of the needle handle extends out of the needle body seat;
the outer wall of the needle body seat is provided with threads and is in threaded connection with the second end of the cannula seat;
the outer wall of the conduit connecting seat is provided with threads and is in threaded connection with the second end of the sleeve seat;
the first end of the conduit connecting seat is communicated with the sleeve seat; the second end of the conduit connecting seat is connected with the conduit;
a first mark is arranged on the guide pipe close to the guide pipe connecting seat, the first mark is 3-5 cm away from the guide pipe connecting seat along the guide pipe, and a single-hand clamp is clamped on the guide pipe;
the single-hand clamp is arranged at the first mark;
further comprising: the second end of the catheter is provided with an injection seat, and the normal saline injector is inserted into the injection seat;
a first stop mark, a second stop mark and a third stop mark are arranged on the physiological saline injector at intervals; the third stop sign is 0.5 ml-1 ml of the liquid outlet end of the physiological saline injector;
further comprising: a spring valve assembly disposed in the conduit coupling socket;
the spring valve assembly includes: the supporting seat is arranged on the end face of the first end in the conduit connecting seat;
the first end of the supporting rod is fixedly connected with the supporting seat;
a blocking block is arranged on the second end of the supporting rod in a sliding mode, and the first end face of the blocking block is connected with the second end of the compression spring;
the first end of the compression spring is connected with the top surface of the supporting seat;
the second end of the blocking block is abutted with the first end of the conduit in the second end of the conduit connecting seat.
Preferably, an anti-condensation guide cylinder is arranged in the conduit connecting seat;
the anti-condensation guide cylinder is hollow, two ends of the anti-condensation guide cylinder are open, and a plurality of first through holes are symmetrically formed in the side wall of the anti-condensation guide cylinder;
the first through hole is communicated with the side wall of the anti-condensation guide cylinder along the radial direction of the anti-condensation guide cylinder and communicated with the inner cavity of the catheter connecting seat and the interior of the anti-condensation guide cylinder;
the spring valve component is accommodated and arranged in the hollow part in the anti-condensation guide cylinder.
Preferably, a plurality of second through holes are formed in the support seat along the longitudinal direction.
Preferably, the second end surface of the plugging block is provided with a limiting groove which is opposite to the first end of the guide pipe; the first end of the catheter extends into the catheter connecting seat and is movably abutted against the limiting groove.
Preferably, the maximum distance between the outer wall of the anti-condensation guide cylinder and the inner wall of the catheter connecting seat is less than 3 cm.
Preferably, the method comprises the following steps: one end of the needle sleeve is open, and the other end of the needle sleeve is closed;
the open end of the needle sleeve is covered outside the sleeve;
the outer wall of the first end of the cannula holder is inserted into the open end of the needle hub.
Preferably, the sealing device further comprises a sealing ring, and the sealing ring is arranged on the second end face of the blocking block;
the first end of the conduit is movably inserted into the sealing ring.
The beneficial effects that this application can produce include:
1) the utility model provides a needle is kept somewhere to anti-coagulation blood malleation through setting up the spring valve in conduit coupling seat, when not having the injection propelling force, realizes the closure to the pipe, simultaneously through setting up the draft tube of preventing congealing in conduit coupling seat, realizes carrying out the water conservancy diversion to the injection that gets into the human body to set up the slowly-releasing anti-coagulation agent layer in the water conservancy diversion hole of the draft tube of preventing congealing, improve and keep somewhere the effect of preventing congealing to backflow blood.
Drawings
FIG. 1 is a schematic sectional view of the main view of the positive pressure anti-coagulation indwelling needle provided by the present application;
fig. 2 is a schematic front sectional view of a catheter hub provided herein;
fig. 3 is a schematic right side sectional view of the anti-condensation flow guide cylinder provided in the present application;
fig. 4 is a schematic cross-sectional view of a spring valve with a conduit connecting seat removed from an anti-coagulation guide cylinder according to the present application;
FIG. 5 is a partial enlarged view of point A in FIG. 4;
illustration of the drawings:
10. a needle sleeve; 21. a sleeve; 22. a needle tube; 211. a cannula holder; 212. an isolation plug; 221. a needle body seat; 222. a needle handle; 31. a catheter connecting base; 33. an anti-condensation guide cylinder; 34. a first through hole; 41. a conduit; 43. clamping with a single hand; 42. a first mark; 51. a supporting seat; 511. a second through hole; 52. a support bar; 53. a compression spring; 54. a plugging block; 541. a limiting groove; 542. and (5) sealing rings.
Detailed Description
The present application will be described in detail with reference to examples, but the present application is not limited to these examples.
Referring to fig. 1, the application provides an anti-coagulation positive pressure indwelling needle, comprising: the cannula 21, the needle tube, the cannula holder 211, the needle holder 221, the catheter 41 and the catheter connecting holder 31;
one end of the sleeve 21 is connected with the first end of the sleeve seat 211, and the interior of the sleeve seat 211 is hollow; the sleeve 21 is sleeved outside the first end of the needle tube. The inner wall of the second end of the sleeve seat 211 is provided with threads; the second end of the needle tube is accommodated and fixed in the cannula 21, the other end is provided with a needle handle 222, and the first end of the needle handle 222 is accommodated in the needle body seat 221; the second end of the needle handle 222 extends out of the needle body seat 221. The outer wall of needle hub 221 is threaded and threadedly engages the second end of cannula hub 211.
After the insertion into the human body is completed, the needle grip 222 is gripped, and the needle grip 222 is rotated to draw the needle body out of the needle body.
The outer wall of the catheter coupling hub 31 is threaded and threadedly coupled to the second end of the cannula hub 211. After the needle penetration is completed, the catheter hub 31 is screwed into the second end of the cannula hub 211 after the needle cannula is removed. A first end of the catheter connection hub 31 communicates with the cannula hub 211; the second end of the conduit coupling base 31 is coupled to the conduit 41. The conduit 41 is fixedly connected with the second end of the conduit connecting seat 31 through the conduit 41 seat.
Referring to fig. 2, a first mark 42 is arranged on the conduit 41 near the conduit connecting seat 31, the first mark 42 is 313-5 cm away from the conduit connecting seat along the conduit 41, and a one-hand clamp 43 is clamped on the conduit 41; the one-hand clamp 43 is clamped at the first mark 42.
By arranging the first mark 42 with warning function on the catheter 41, the position of the single-hand clamp 43 with good blood return prevention function can be located in time in the emergency treatment process, and the clamp is prevented from being misplaced due to confusion of operators. And plays a role of reminding the operator of paying attention to the clamping position of the one-hand clamp 43. The position is a one-hand clamp 43, and the function of preventing the reflux coagulation of the lower limb indwelling needle can be better realized.
An injection seat is arranged at the second end of the conduit 41, and a first stop sign, a second stop sign and a third stop sign are arranged at intervals on a physiological saline injector spliced with the injection seat. The third stop mark is 0.5 ml-1 ml of the liquid outlet end of the physiological saline injector.
Referring to fig. 4, further comprising: a spring valve assembly disposed in the catheter coupling base 31; the spring valve assembly includes: a supporting seat 51, a supporting rod 52, a compression spring 5353 and a blocking block 54, wherein the supporting seat 51 is arranged on the first end face in the catheter connecting seat 31; the first end of the support rod 52 is fixedly connected with the support seat 51; a blocking block 54 is arranged on the second end of the support rod 52 in a sliding manner, and the first end surface of the blocking block 54 is connected with the second end of the compression spring 5353; the first end of the compression spring 5353 is connected with the top surface of the support seat 51; the second end of the block 54 abuts the first end of the conduit 41 in the second end of the conduit connection socket 31.
Through setting up the spring valve unit spare, when not having the injection to promote, can block up pipe 41 after the shutoff piece 54 butt completely, can prevent that outside bacterium from invading, can also increase reverse acting force for the blood pressure backward flow simultaneously, prevent the backward flow, and then prevent because blood coagulation, the thrombosis that the backward flow leads to, the needle life is kept somewhere in the extension. The pain of the patient is reduced.
The operator can complete the anticoagulant effect according to the stop sign: and (3) performing direct pushing at the time of flushing-stopping-flushing-stopping, and finally 0.5 mL-1 mL. The anticoagulant operation accuracy is improved, and a better anticoagulant effect can be realized without depending on the experience of an operator.
Preferably, an anti-coagulation guide cylinder 33 is arranged in the catheter connecting seat 31, referring to fig. 2, the anti-coagulation guide cylinder 33 is hollow inside, two ends of the anti-coagulation guide cylinder are open, and a plurality of first through holes 34 are symmetrically arranged on the side wall of the anti-coagulation guide cylinder 33; the first through hole 34 penetrates through the side wall of the anti-condensation guide cylinder 33 along the radial direction of the anti-condensation guide cylinder 33 and communicates the inner cavity of the catheter connecting seat 31 and the interior of the anti-condensation guide cylinder 33; the spring valve assembly is accommodated in a hollow portion provided inside the anti-condensation guide cylinder 33.
The maximum distance between the outer wall of the anti-condensation guide cylinder 33 and the inner wall of the catheter connecting seat 31 is less than 3 cm. The anti-coagulation guide cylinder 33 is movably arranged in the catheter connecting seat 31, the position is not fixed, and the anti-coagulation guide cylinder 33 is pushed to one side of the catheter connecting seat 31 close to the sleeve seat 211 under the action of the injection pushing force, so that the guide effect on the injection is improved.
To prevent the block 54 from escaping from the support rod 52, the second end of the support rod 52 is disposed proximate the first end of the conduit 41.
Preferably, a plurality of second through holes 511 are formed through the support seat 51 in the longitudinal direction of the support seat 51. The second through hole 511 communicates with the cavity of the catheter hub adapter housing 31 outside the mounting position of the support base 51 and the cavity portion of the catheter hub adapter housing 31 below the mounting position of the support base 51.
Referring to fig. 5, preferably, the second end surface of the block 54 is provided with a limiting groove 541 opposite to the first end of the conduit 41. The first end of the catheter 41 extends into the catheter connecting seat 31 and is movably abutted against the limiting groove 541. The limiting groove 541 structure is adopted, so that the tight plugging and matching accuracy can be improved, and the blocking effect on the blood backflow of the lower limbs is improved.
Preferably, a sealing ring 542 is further included, the sealing ring 542 being disposed on the second end face of the block 54; the first end of the conduit 41 is removably inserted into the sealing ring 542. I.e. against the outer wall of the first end of the conduit 41. When the blocking piece 54 abuts against the first end of the guide tube 41, the sealing ring 542 is sleeved on the outer wall of the guide tube 41. And a better sealing effect is realized.
Preferably, the method comprises the following steps: the needle sleeve 10, one end of the needle sleeve 10 is open, the other end is closed, the open end of the needle sleeve 10 is covered outside the cannula 21; the outer wall of the first end of the cannula holder 211 is inserted into the open end of the needle hub 10. The sleeve 21 is effectively protected from contamination by the addition of the sleeve 10.
Preferably, the needle assembly further comprises an isolating plug 212, wherein the isolating plug 212 is sleeved on the second end of the needle body and is accommodated in the cannula holder 211.
Preferably, the device further comprises a catheter 41 seat, wherein the catheter 41 seat is sleeved on the first end of the catheter 41 and fixedly connected with the outer wall of the first end of the outer wall of the catheter connecting seat 31. The first end of the conduit 41 is fixedly connected to the base of the conduit 41.
Referring to fig. 3, preferably, the first through hole 34 includes: the first group of guide holes and the second group of guide holes are arranged at the upper part of the anti-condensation guide cylinder 33; the second group of guide holes are arranged at the lower part of the anti-condensation guide cylinder 33. And a heparin layer is arranged in the second group of flow guide holes.
Preferably, the anti-coagulation guide cylinder 33 has a heparin layer on its inner wall to perform an anti-coagulation function on a small amount of blood flowing back into the catheter connection seat 31. The release time of the anti-coagulation guide cylinder 33 can be prolonged by arranging the heparin layer on the inner wall thereof, and the anti-coagulation effect is prolonged.
Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the disclosure to effect such feature, structure, or characteristic in connection with other embodiments.
Although the present application has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (7)

1. An anti-coagulation positive pressure indwelling needle, comprising: a sleeve (21), a needle tube (22), a sleeve seat (211), a needle body seat (221), a catheter (41) and a catheter connecting seat (31);
one end of the sleeve (21) is connected with the first end of the sleeve seat (211), and the interior of the sleeve seat (211) is hollow; the sleeve (21) is sleeved outside the first end of the needle tube (22);
the inner wall of the second end of the sleeve seat (211) is provided with threads;
a needle handle (222) is arranged at the second end of the needle tube (22), and the first end of the needle handle (222) is accommodated and fixed in the needle body seat (221);
the second end of the needle handle (222) extends out of the needle body seat (221);
the outer wall of the needle body seat (221) is provided with threads and is in threaded connection with the second end of the cannula seat;
the outer wall of the conduit connecting seat (31) is provided with threads and is in threaded connection with the second end of the sleeve seat (211);
the first end of the conduit connecting seat (31) is communicated with the sleeve seat (211); the second end of the conduit connecting seat (31) is connected with a conduit (41);
a first mark (42) is arranged on the guide pipe (41) close to the guide pipe connecting seat (31), the first mark (42) is 3-5 cm away from the guide pipe connecting seat (31) along the guide pipe, and a single-hand clamp (43) is clamped on the guide pipe (41);
the single-hand clamp (43) is clamped at the first mark (42);
further comprising: the second end of the catheter is provided with an injection seat, and the normal saline injector is inserted into the injection seat;
the physiological saline injector is provided with a first stop mark, a second stop mark and a third stop mark at intervals; the third stop sign is 0.5 ml-1 ml of the liquid outlet end of the physiological saline injector;
further comprising: a spring valve assembly disposed in the conduit coupling socket;
the spring valve assembly includes: the device comprises a supporting seat (51), a supporting rod (52), a compression spring (53) and a blocking block (54), wherein the supporting seat (51) is arranged on the end face of a first end in a conduit connecting seat (31);
the first end of the supporting rod (52) is fixedly connected with the supporting seat (51);
a blocking block (54) is arranged on the second end of the supporting rod (52) in a sliding mode, and the first end face of the blocking block (54) is connected with the second end of the compression spring (53);
the first end of the compression spring (53) is connected with the top surface of the supporting seat (51);
the second end of the blocking block (54) is abutted with the first end of the conduit (41) in the second end of the conduit connecting seat (31).
2. The positive pressure anti-coagulation indwelling needle according to claim 1, wherein an anti-coagulation guide cylinder (33) is provided in the catheter connecting seat (31);
the anti-condensation guide cylinder (33) is hollow, two ends of the anti-condensation guide cylinder are open, and a plurality of first through holes (34) are symmetrically formed in the side wall of the anti-condensation guide cylinder (33);
the first through hole (34) penetrates through the side wall of the anti-condensation guide cylinder (33) along the radial direction of the anti-condensation guide cylinder (33) and communicates the inner cavity of the catheter connecting seat (31) and the interior of the anti-condensation guide cylinder (33);
the spring valve component is accommodated and arranged in a hollow part inside the anti-condensation guide cylinder (33).
3. The positive pressure anti-coagulation indwelling needle according to claim 2, wherein a plurality of second through holes (511) are provided through the support base in the longitudinal direction.
4. The positive pressure anti-coagulation indwelling needle according to claim 3, wherein the second end face of the block piece (54) is provided with a limiting groove (541) facing the first end of the catheter (41); the first end of the catheter (41) extends into the catheter connecting seat (31) and is movably abutted in the limiting groove (541).
5. The positive pressure anti-coagulation indwelling needle according to claim 2, wherein the maximum distance between the outer wall of the anti-coagulation guide cylinder (33) and the inner wall of the catheter connecting seat (31) is less than 3 cm.
6. The positive anti-coagulation pressure indwelling needle according to claim 1, comprising: the needle sleeve (10), one end of the needle sleeve (10) is open, and the other end is closed;
the open end of the needle sleeve (10) is covered outside the sleeve (21);
the outer wall of the first end of the sleeve seat (211) is inserted into the open end of the needle sleeve (10).
7. The positive anti-coagulation pressure indwelling needle according to claim 1, further comprising a sealing ring (542), wherein the sealing ring (542) is provided on the second end face of the blocking block (54);
the first end of the guide pipe (41) is movably inserted into the sealing ring (542).
CN202020844533.9U 2020-05-19 2020-05-19 Anti-coagulation positive pressure indwelling needle Active CN213191769U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020844533.9U CN213191769U (en) 2020-05-19 2020-05-19 Anti-coagulation positive pressure indwelling needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020844533.9U CN213191769U (en) 2020-05-19 2020-05-19 Anti-coagulation positive pressure indwelling needle

Publications (1)

Publication Number Publication Date
CN213191769U true CN213191769U (en) 2021-05-14

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ID=75818626

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020844533.9U Active CN213191769U (en) 2020-05-19 2020-05-19 Anti-coagulation positive pressure indwelling needle

Country Status (1)

Country Link
CN (1) CN213191769U (en)

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