CN213191768U - Anti-coagulation remaining needle - Google Patents

Abstract

The application discloses prevent blood coagulation and keep somewhere needle 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. Through set up the mark line on connecting the pipe outer wall, be convenient for under the condition of emergency, the user is accurate to be pressed from both sides the centre gripping in this position with the one hand to effectively prevent to form back blood in the sleeve pipe.

Description

Anti-coagulation remaining needle

Technical Field

The application relates to a blood coagulation prevention 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 first aid requires a long time and requires a high level of skill of the operator. The indwelling needle arranged in the vein of the lower limb of the human body has the phenomenon that the blood return is formed in the sleeve and is solidified because the blood return pressure of the vein of the lower limb is higher than that of the upper limb. After coagulation occurs, the indwelling hose needs to be pulled out, resulting in the patient needing to bear the pain of the insertion needle again.

Disclosure of Invention

The present application provides an anti-coagulation indwelling needle for solving the above technical problems.

The application provides a prevent blood coagulation and keep somewhere needle 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 mark is 0.5 ml-1 ml of the liquid outlet end of the physiological saline injector.

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 radially runs through the side wall of the anti-condensation guide cylinder along the anti-condensation guide cylinder and communicates the inner cavity of the catheter connecting seat with the interior of the anti-condensation guide cylinder.

Preferably, a first guide plate and a second guide plate are vertically arranged in the inner cavity of the anti-condensation guide cylinder; a plurality of second through holes are respectively arranged on the first guide plate and the second guide plate at intervals, and the second through holes penetrate through the first guide plate and the second guide plate.

Preferably, the first guide plate extends along the diameter of the inner cavity of the anti-condensation guide cylinder;

the opposite side walls of the first guide plate are respectively connected with the inner wall of the anti-condensation guide cylinder;

the second guide plate extends along the diameter of the inner cavity of the anti-condensation guide cylinder;

the opposite side walls of the second guide plate are respectively connected with the inner wall of the anti-condensation guide cylinder;

the first guide plate and the second guide plate transversely extend along the anti-condensation guide cylinder body.

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.

The beneficial effects that this application can produce include:

1) the utility model provides a prevent blood coagulation and keep somewhere needle through set up the mark line on the connecting tube outer wall, is convenient for under the condition of urgent emergency, and the user is accurate presss from both sides the centre gripping in this position with the one hand to effectively prevent to form back blood in the sleeve pipe. And meanwhile, the needle tube used for injecting the tube sealing agent is provided with the stop mark, so that an operator can conveniently and timely obtain the tube flushing operation stop position in an emergency, and the effect of preventing blood return is better realized by combining the single-hand clamping position. Through preventing that blood return from getting into in the sleeve, can effectively prevent the formation of thrombus, it is long when extension sheathed tube is used, avoids relapse the contact pin and leads to patient's misery.

2) The utility model provides a needle is kept somewhere to anti-coagulation through set up the draft tube of preventing coagulating in catheter connection seat, carries out the water conservancy diversion to the injection that gets into the human body to set up the slowly-releasing anticreep agent layer in the water conservancy diversion hole of the draft tube of preventing coagulating, improve and keep somewhere the effect of preventing coagulating to the backward flow blood.

Drawings

FIG. 1 is a front cross-sectional structural view of an anti-coagulation indwelling needle provided herein;

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;

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; 351. A first baffle; 352. a second baffle; 353. a second through hole; 41. a conduit; 43. clamping with a single hand; 42. a first mark.

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 present application provides an anti-coagulation 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.

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 radially penetrates through the sidewall of the anti-condensation guide cylinder 33 along the anti-condensation guide cylinder 33 and communicates the inner cavity of the catheter connecting seat 31 with the interior of the anti-condensation guide cylinder 33.

Preferably, referring to fig. 3, a first guide plate and a second guide plate are vertically arranged in the inner cavity of the anti-condensation guide cylinder 33; a plurality of second through holes 353 are respectively arranged on the first guide plate and the second guide plate at intervals, and the second through holes 353 penetrate through the first guide plate and the second guide plate.

Preferably, the first baffle extends along the diameter of the inner cavity of the anti-condensation guide cylinder 33; the opposite side walls of the first guide plate are respectively connected with the inner wall of the anti-condensation guide cylinder 33; the second guide plate extends along the diameter of the inner cavity of the anti-condensation guide cylinder 33; the opposite side walls of the second guide plate are respectively connected with the inner wall of the anti-condensation guide cylinder 33; the first guide plate and the second guide plate extend transversely along the cylinder body of the anti-condensation guide cylinder 33.

Through setting up first guide plate and second guide plate and will prevent congealing the inner chamber partition for a plurality of regions of draft tube 33, after the injection got into and prevents congealing the inner chamber of draft tube 33, under the effect of propulsive force, after the second through-hole 353 of first guide plate and second guide plate flowed through respectively, flowed out from second through-hole 353 again, got into sleeve seat 211.

The material layer with anticoagulation effect is conveniently arranged on the inner wall of the first through hole 34, the second through hole 353 or the anticoagulation guide cylinder 33 according to the requirement, and after the substance is dissolved by the injection, the anticoagulation effect on a small amount of backflow blood is realized.

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.

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.

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 (6)

1. An anti-coagulation 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 mark is 0.5 ml-1 ml of the liquid outlet end of the physiological saline injector.

2. The anticoagulation indwelling needle according to claim 1, wherein an anticoagulation 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 guide pipe connecting seat (31) and the interior of the anti-condensation guide cylinder (33).

3. The anticoagulation indwelling needle according to claim 2, wherein a first baffle (351) and a second baffle (352) are disposed perpendicularly to each other in the inner cavity of the anticoagulation guide cylinder (33); a plurality of second through holes (353) are respectively arranged on the first guide plate (351) and the second guide plate (352) at intervals, and the second through holes (353) penetrate through the first guide plate (351) and the second guide plate (352).

4. The anticoagulant indwelling needle according to claim 3, wherein the first flow guide plate (351) extends along a diameter of an inner cavity of the anticoagulant flow guide cylinder (33);

the opposite side walls of the first guide plate (351) are respectively connected with the inner wall of the anti-condensation guide cylinder (33);

the second guide plate (352) extends along the diameter of the inner cavity of the anti-condensation guide cylinder (33);

the opposite side walls of the second guide plate (352) are respectively connected with the inner wall of the anti-condensation guide cylinder (33);

the first guide plate (351) and the second guide plate (352) transversely extend along the cylinder body of the anti-condensation guide cylinder (33).

5. The anticoagulation indwelling needle according to claim 2, wherein the maximum distance between the outer wall of the anticoagulation guide cylinder (33) and the inner wall of the catheter connecting seat (31) is less than 3 cm.

6. The anticoagulant 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).

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