CN211068436U - Novel multifunctional remaining needle - Google Patents

Novel multifunctional remaining needle Download PDF

Info

Publication number
CN211068436U
CN211068436U CN201920860649.9U CN201920860649U CN211068436U CN 211068436 U CN211068436 U CN 211068436U CN 201920860649 U CN201920860649 U CN 201920860649U CN 211068436 U CN211068436 U CN 211068436U
Authority
CN
China
Prior art keywords
needle
sleeve
sleeve pipe
hose seat
seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920860649.9U
Other languages
Chinese (zh)
Inventor
余宾
常省委
赵明学
李丁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Tuoren Medical Device Co ltd
Original Assignee
Henan Tuoren Medical Device Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henan Tuoren Medical Device Co ltd filed Critical Henan Tuoren Medical Device Co ltd
Priority to CN201920860649.9U priority Critical patent/CN211068436U/en
Application granted granted Critical
Publication of CN211068436U publication Critical patent/CN211068436U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

A novel multifunctional indwelling needle comprises a hose seat, wherein a soft gasket for preventing pressure sores is arranged on the hose seat, a needle-prick preventing component is arranged at the bottom end of the hose seat, and an indicating structure for judging a needle withdrawing distance is arranged on the needle-prick preventing component; the soft gasket is provided with a plurality of through holes, and the bottom of the soft gasket is provided with a plurality of grooves which are arranged at intervals; the anti-acupuncture component comprises an inner sleeve, a middle sleeve capable of moving along the outer wall of the inner sleeve is sleeved outside the inner sleeve, an outer sleeve capable of moving along the outer wall of the middle sleeve is sleeved outside the middle sleeve, the inner sleeve is connected with the bottom end of the hose seat, a puncture needle is arranged in the outer sleeve, the puncture needle sequentially penetrates through the inner sleeve and the hose seat, and the bottom of the puncture needle is fixedly connected with the outer sleeve. The utility model discloses well soft gasket is used for reducing and keeps somewhere the needle and fixes the probability that forms pressure sore for a long time at patient's body surface, prevents that the acupuncture subassembly is used for preventing when the pjncture needle is withdrawn from the hose seat, and the pjncture needle stabs medical personnel, and the instruction structure is used for judging the distance of withdrawing the needle.

Description

Novel multifunctional remaining needle
Technical Field
The utility model relates to the technical field of infusion apparatus, concretely relates to novel multi-functional needle of keeping somewhere.
Background
In recent years, the application range of venous indwelling needles has been expanding, and they are now widely used in clinical departments. There are some problems with the clinical use of venous indwelling needles:
(1) the indwelling needle is usually kept on the body surface of a patient for a fixed time of 4 to 5 days or even longer, the body surface of the patient can be damaged due to long-time fixed compression of the indwelling needle, pressure sores are formed seriously, and the indwelling needle is particularly common to infant patients, so that great inconvenience is brought to clinical care work.
(2) When keeping somewhere needle puncture operation to the patient at clinical medical personnel, in order to can be better disposable puncture and keep somewhere successfully, have such an operating specification, do in proper order: pricking a tourniquet, removing a needle protection cap, loosening a puncture needle from left to right, directly puncturing a vein with a needle point inclined plane facing upwards at 15-30 degrees, reducing the angle to 5-10 degrees after blood return, continuing to insert the needle by 2 mm, withdrawing the puncture needle by 2-3 mm, holding a needle base to completely send the catheter and the puncture needle into the blood vessel, loosening the tourniquet to open a speed regulator, completely withdrawing the puncture needle, and fixing an indwelling needle. The indwelling needle provided by each medical instrument company in the prior art can be basically operated by medical staff and finished according to clinical operation specifications, but a key step of withdrawing the puncture needle by 2-3 mm is provided, so that the needle point can be withdrawn into the catheter and cannot be excessive, the catheter and the puncture needle can be completely delivered into the blood vessel without damaging the blood vessel, and the prior indwelling needle technology has no indication design for the medical staff to observe, so that the medical staff can make a sense judgment according to personal experience when performing the step clinically, great misoperation possibility exists, the operation is particularly obvious for the medical staff with low working experience, when the withdrawing puncture needle is too few, the needle point can not be withdrawn into the catheter, and the needle point can easily puncture the blood vessel to form a bulge when subsequently delivering the catheter and the puncture needle into the blood vessel; when the puncture needles are too much to be withdrawn and the needle points are too deep in the catheter, the support of the catheter is not enough when the catheter and the puncture needles are subsequently sent into the blood vessel, and the catheter is easy to distort and deform to influence the liquid medicine. These problems are the main cause of the puncture failure of the indwelling needle.
(3) The puncture needle is successfully withdrawn after the puncture of the clinical indwelling needle, and the risk that the needle tip punctures medical care personnel easily occurs at the moment when the puncture needle is withdrawn from the indwelling needle hose seat, thus easily causing blood-borne diseases.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a novel multi-functional needle of keeping somewhere can effectively reduce and keep somewhere the needle and fix the probability that forms pressure sore for a long time at patient's body surface, can see the index mark when medical personnel puncture in-process execution moves back the needle step, effectively judges and moves back the needle distance to can effectively prevent to keep somewhere the needle and keep somewhere after the success, stab medical personnel when extracting the pjncture needle from the hose seat.
The utility model discloses the technical scheme who takes does:
the utility model provides a novel multi-functional needle of keeping somewhere, includes the hose seat, is equipped with the soft gasket that is used for preventing pressing the sore on the hose seat, is equipped with in the bottom of hose seat and prevents the acupuncture subassembly, is equipped with the instruction structure that is used for judging the needle distance of moving back on preventing the acupuncture subassembly.
The soft gasket is provided with a plurality of through holes, and the bottom of the soft gasket is provided with a plurality of grooves which are arranged at intervals; the soft gasket is arranged at the position of the hose seat, which is contacted and fixed with the body surface of a human body, and the width of the soft gasket is larger than the diameter of the hose seat.
The anti-acupuncture component comprises an inner sleeve, an outer sleeve capable of moving along the inner sleeve is sleeved on the inner sleeve, the inner sleeve is connected with the bottom end of the hose seat, a puncture needle is arranged in the outer sleeve, the puncture needle sequentially penetrates through the inner sleeve and the hose seat, and the bottom of the puncture needle is fixedly connected with the outer sleeve.
Set up a plurality of bayonet socket on the sleeve pipe including, the bayonet socket distributes along interior sheathed tube circumference, be equipped with on the outer casing pipe with interior sleeve pipe on bayonet socket matched with instruct the boss, instruct the boss setting in the bayonet socket, when accomplishing the withdrawal pjncture needle, instruct the boss to withdraw from interior sleeve pipe bayonet socket.
Be equipped with well sleeve pipe between interior sleeve pipe and outer tube, interior sleeve pipe and outer tube are connected through well sleeve pipe, and well sleeve pipe removal can be followed to the outer tube, and well sleeve pipe can be followed interior sleeve pipe and removed, and the pjncture needle runs through well sleeve pipe.
The middle limiting boss is arranged at the bottom end of the middle sleeve, the middle snap ring is arranged at the top end of the middle sleeve, the outer snap ring matched with the middle limiting boss is arranged at the top end of the outer sleeve, the inner limiting boss matched with the middle snap ring is arranged at the bottom end of the inner sleeve, the middle snap ring tightly pushes the end face of the inner limiting boss when the middle sleeve moves to the bottom end of the middle sleeve, and the outer snap ring tightly pushes the end face of the middle limiting boss when the outer sleeve moves to the bottom end of the middle sleeve.
At least 1 baffle plate is arranged in the inner sleeve, the baffle plate is in clearance fit with the inner sleeve, and the puncture needle penetrates through the baffle plate and is in clearance fit with the baffle plate; a stop dog used for preventing the separation blade from moving towards the bottom end of the inner sleeve is arranged in the inner sleeve.
Interior sleeve pipe overcoat is in or embedded in the bottom of hose seat, is equipped with the first bellying of ring channel and a plurality of on the hose seat in proper order, and the even interval distribution of circumference along the hose seat is followed to first bellying, including sheathed tube tip be equipped with ring channel matched with second bellying.
The bottom fixedly connected with of outer tube has transparent end cap, and the pjncture needle runs through the outer tube and extends to in the end cap, pjncture needle and end cap clearance fit, and there is the interval bottom and the bottom of end cap of pjncture needle, and the bottom of pjncture needle is opened, is equipped with the opening in the bottom of end cap, is fixed with the ventilated membrane of being made by ventilative impervious material at the opening part.
An anti-overflow plug is arranged in the hose seat and comprises a soft rubber plug and a fixed seat, the upper part of the soft rubber plug and the lower part of the soft rubber plug are both cylinders, the diameter of the upper part of the soft rubber plug is larger than that of the lower part of the soft rubber plug, a needle hole matched with a puncture needle of a remaining needle is arranged at the lower part of the soft rubber plug, an installation hole is arranged in the fixed seat, and the lower part of the soft rubber plug is arranged in the installation hole of the; the mounting hole is a stepped hole and comprises a first hole and a second hole, the second hole is close to the bottom end of the hose seat, and the lower part of the soft rubber plug is in interference fit with the second hole; soft plug upper portion and hose seat interference fit, fixing base and hose seat clearance fit are equipped with annular boss on the outer wall of fixing base, are equipped with the first annular bellying that is used for sheltering from annular boss in the hose seat, and the terminal surface top of first annular bellying and annular boss is tight to be cooperated.
The soft gasket of the utility model is used for reducing the probability of pressure sores formed by fixing the indwelling needle on the body surface of the patient for a long time, the acupuncture-preventing component is used for preventing the puncture needle from stabbing medical personnel when the puncture needle withdraws from the hose seat, and the indicating structure is used for judging the needle withdrawal distance; the soft gasket is provided with a plurality of through holes for ventilation, the width of the soft gasket is larger than the diameter of the hose seat, the contact area is increased, and the pressure intensity is reduced; the inner sleeve, the middle sleeve and the outer sleeve of the anti-puncture assembly are used for wrapping the puncture needle in the needle withdrawing process, so that the puncture needle is prevented from being exposed and medical personnel are prevented from being punctured; a middle sleeve is arranged between the inner sleeve and the outer sleeve, so that the overall length of the anti-needling component is reduced; when the middle sleeve moves to the bottom end of the inner sleeve, the middle clamping ring is tightly propped against the end surface of the inner limiting boss, and when the outer sleeve moves to the bottom end of the middle sleeve, the outer clamping ring is tightly propped against the end surface of the middle limiting boss to play a limiting role; the boss is matched with the bayonet, the position can be observed when the clinical medical personnel perform the operation step of withdrawing the needle after the indwelling needle is punctured, and the step can be completed when the boss is seen to withdraw from the bayonet of the inner sleeve; the blocking piece is used for blocking the puncture needle and preventing the puncture needle from penetrating back, namely, the puncture needle punctures towards the direction of the hose seat in the needle withdrawing process; the hose seat is sequentially provided with an annular groove and a plurality of first protruding parts, and the annular groove and the first protruding parts are used for limiting the inner sleeve so that the inner sleeve can be separated from the hose seat under the action of certain force; the big lower part in the soft rubber stopper upper portion of anti-overflow stopper is little, soft rubber stopper upper portion and hose seat interference fit, and the anti-overflow stopper can also ensure that the side opening on the pjncture needle can not leak blood at the in-process that moves back the needle under the circumstances of guaranteeing that medical personnel experience minimum resistance when moving back the needle, and first annular bellying pushes up tight cooperation with the terminal surface of annular boss, plays limiting displacement.
Drawings
Fig. 1 is a schematic structural diagram (one) of the present invention;
FIG. 2 is a partial cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the anti-needle-stick assembly of FIG. 2 shown extended and separated from the hose mount;
fig. 4 is a schematic structural diagram (ii) of the present invention;
FIG. 5 is a schematic view of the extended configuration of the anti-needlestick assembly of FIG. 4;
FIG. 6 is a partial cross-sectional view of FIG. 5;
FIG. 7 is a schematic view of the construction of the soft gasket;
fig. 8 is a schematic structural view (one) of the soft rubber plug;
fig. 9 is a schematic structural view (two) of the soft rubber plug;
FIG. 10 is a schematic structural view of the fixing base;
FIG. 11 is a sectional view of the mounting hole of the fixing base being a stepped hole;
fig. 12 is a structural schematic view of one third to one fifth of the lower part of the soft rubber plug in interference fit with the fixed seat;
FIG. 13 is an enlarged view of a portion of FIG. 12;
FIG. 14 is a schematic structural view of the transition fit between the lower part of the soft rubber plug and the fixed seat;
FIG. 15 is an enlarged partial schematic view of FIG. 14;
FIG. 16 is a schematic structural view of the interference fit between the lower part of the soft rubber plug and the fixed seat;
FIG. 17 is an enlarged partial schematic view of FIG. 16;
FIG. 18 is a schematic structural view of the interference fit between the second annular bulge at the lower part of the soft rubber plug and the fixed seat;
fig. 19 is a partially enlarged schematic view of fig. 18.
Detailed Description
As shown in fig. 1-19, a novel multifunctional indwelling needle, including hose seat 3, be equipped with the soft gasket 4 that is used for preventing pressing sore on hose seat 3, soft gasket 4 is used for reducing and keeps somewhere the needle and fixes the probability that forms pressing sore for a long time at patient's body surface, soft gasket 4 adopts the softwood matter to make, like silica gel, but soft gasket 4 and hose seat 3 integrated into one piece, also can bond, fixed modes such as joint, be equipped with in the bottom of hose seat 3 and prevent the acupuncture subassembly, prevent that the acupuncture subassembly is used for preventing when pjncture needle 1 withdraws from hose seat 3, pjncture needle 1 stabs medical personnel, be equipped with the instruction structure that is used for judging the distance of withdrawing the needle on preventing the acupuncture subassembly, the instruction structure is used for judging the distance of withdrawing the.
An indwelling tube 2 is fixed at the front end of a hose seat 3, a puncture needle 1 penetrates through the indwelling tube 2 and is exposed outside the indwelling tube 2, an infusion tube 11 is communicated with the side surface of the hose seat 3, a flow stopping clamp 12 is arranged on the infusion tube 11, a tee joint 13 is connected at the end part of the infusion tube 11, and a sterile cap is arranged on one connecting port of the tee joint 13, which is the prior art and is not described herein again.
The soft gasket 4 is provided with a plurality of through holes 5, the through holes 5 are used for ventilation, and the bottom of the soft gasket 4 is provided with a plurality of grooves 4a arranged at intervals.
The soft gasket 4 is arranged at the position, fixed by contact, of the hose seat 3 and the body surface of a human body, the width of the soft gasket 4 is larger than the diameter of the hose seat 3, the contact area is increased, the pressure intensity is reduced, pressure sores are avoided being formed locally, and the soft gasket 4 is symmetrically arranged relative to the central line of the hose seat 3, namely the central line of the soft gasket 4 coincides with the central line of the hose seat 3.
Prevent that acupuncture subassembly includes interior sleeve pipe 6, including the cover is equipped with the outer tube 8 that can follow interior sleeve pipe 6 and remove on sleeve pipe 6, 8 covers of outer tube are established outside interior sleeve pipe 6, outer tube 8 can follow interior sleeve pipe 6 outer wall and remove, perhaps 8 covers of outer tube are established in interior sleeve pipe 6, interior sleeve pipe 6 inner wall removal can be followed to outer tube 8, interior sleeve pipe 6 is connected with the bottom of hose seat 3, be equipped with pjncture needle 1 in outer tube 8, interior sleeve pipe 6 and hose seat 3 are run through in proper order to pjncture needle 1, the bottom and the outer tube.
A notch is formed in the side face of the top of the puncture needle 1 and used for returning blood, the bottom of the puncture needle 1 is closed, and when the bottom of the puncture needle 1 extends to the outer sleeve 8, the puncture needle is closed and fixed in a dispensing mode; when the bottom of the puncture needle 1 does not penetrate through the bottom of the outer sleeve 8, the puncture needle is sealed by the bottom of the outer sleeve 8, which is the prior art and is not described in detail herein.
The general condition adopts outer tube 8 cover to establish outside interior sleeve pipe 6, and outer tube 8 can follow interior sleeve pipe 6 outer wall and remove, is convenient for hold the middle part of outer tube 8 and operates, conveniently removes outer tube 8, is convenient for observe the motion condition of outer tube 8 simultaneously.
Set up a plurality of bayonet socket on interior sleeve pipe 6, the bayonet socket distributes along interior sleeve pipe 6's circumference, be equipped with on outer tube 8 with interior sleeve pipe 6 on bayonet socket matched with instruct boss 7, instruct the boss length 2 millimeters-3 millimeters, instruct boss 7 to set up in the bayonet socket, when accomplishing withdrawal pjncture needle 1, instruct boss 7 to withdraw from interior sleeve pipe 6 bayonet socket, can observe this position when clinical medical personnel keep somewhere the needle puncture and carry out withdrawal needle operating procedure, accomplish this step when seeing that the boss withdraws from interior sleeve pipe 6 bayonet socket promptly, be convenient for observe.
When interior sleeve pipe 6 was established to 8 covers of outer tube, the bayonet socket setting was at the top of outer tube 8 on the top of sleeve pipe 6 including, instructed boss 7 sets up the top at outer tube 8, when interior sleeve pipe 6 was established to 8 covers of outer tube, the bottom of sleeve pipe 6 including the bayonet socket setting instructs boss 7 to set up the bottom at outer tube 8.
The middle sleeve 18 is arranged between the inner sleeve 6 and the outer sleeve 8, the inner sleeve 6 and the outer sleeve 8 are connected through the middle sleeve 18, the outer sleeve 8 can move along the middle sleeve 18, the middle sleeve 18 can move along the inner sleeve 6, the puncture needle 1 penetrates through the middle sleeve 18, and the middle sleeve 18 is arranged between the inner sleeve 6 and the outer sleeve 8, so that the overall length of the anti-needle-prick assembly is reduced.
When the outer sleeve 8 is sleeved outside the inner sleeve 6, the inner sleeve 6 is connected with the outer sleeve 8 through the middle sleeve 18, the outer sleeve 8 can move along the outer wall of the middle sleeve 18, the middle sleeve 18 can move along the outer wall of the inner sleeve 6, and the puncture needle 1 penetrates through the middle sleeve 18; when the outer sleeve 8 is sleeved in the inner sleeve 6, the inner sleeve 6 is connected with the outer sleeve 8 through the middle sleeve 18, the outer sleeve 8 can move along the inner wall of the middle sleeve 18, the middle sleeve 18 can move along the inner wall of the inner sleeve 6, and the puncture needle 1 penetrates through the middle sleeve 18.
For cup jointing, only simple change cup joint form all belongs to the protection scope of the utility model between interior sleeve pipe 6, well sleeve pipe 18 and the outer tube 8.
The middle limiting boss 18b is arranged at the bottom end of the middle sleeve 18, the middle snap ring 18a is arranged at the top end of the middle sleeve 18, the outer snap ring 8a matched with the middle limiting boss 18b is arranged at the top end of the outer sleeve 8, the inner limiting boss 6b matched with the middle snap ring 18a is arranged at the bottom end of the inner sleeve 6, when the middle sleeve 18 moves to the bottom end of the inner sleeve 6, the middle snap ring 18a tightly pushes against the end face of the inner limiting boss 6b, and when the outer sleeve 8 moves to the bottom end of the middle sleeve 18, the outer snap ring 8a tightly pushes against the end face of the middle limiting boss 18 b.
When the outer sleeve 8 is sleeved outside the inner sleeve 6, the middle limiting boss 18b is arranged on the outer wall of the middle sleeve 18, the middle snap ring 18a is arranged on the inner wall of the middle sleeve 18, the inner limiting boss 6b is arranged on the outer wall of the inner sleeve 6, and the outer snap ring 8a is arranged on the inner wall of the outer sleeve 8; when the outer sleeve 8 is sleeved in the inner sleeve 6, the middle limiting boss 18b is arranged on the inner wall of the middle sleeve 18, the middle snap ring 18a is arranged on the outer wall of the middle sleeve 18, the inner limiting boss 6b is arranged on the inner wall of the inner sleeve 6, and the outer snap ring 8a is arranged on the outer wall of the outer sleeve 8.
The utility model discloses a simple change in spacing boss 18b, well snap ring 18a, interior spacing boss 6b and outer snap ring 8a position all belong to the protection scope of the utility model.
The inner sleeve 6, the middle sleeve 18 and the outer sleeve 8 of the anti-acupuncture component are used for wrapping the puncture needle 1 in the needle withdrawing process, the puncture needle 1 is prevented from being exposed, medical workers are prevented from being punctured, the middle sleeve 18 is arranged between the inner sleeve 6 and the outer sleeve 8, and therefore the total length of the anti-acupuncture component is reduced.
At least 1 baffle 16 is arranged in the inner sleeve 6, the baffle 16 is in clearance fit with the inner sleeve 6, the puncture needle 1 penetrates through the baffle 16 and is in clearance fit with the baffle 16, the baffle 16 is preferably made of metal, the baffle 16 made of other materials can also be adopted, the baffle 16 can be round, square and other shapes, when the number of the baffles 16 is 1, after the puncture needle 1 is drawn out from the baffle 16, the baffle 16 falls and contacts with the bottom of the inner sleeve 6, the puncture needle 1 is not aligned with the holes of the baffle 16, so that needle return is avoided, when the number of the baffles 16 is 2 or more, the sizes of each baffle 16 are different, after the puncture needle 1 is drawn out from the baffle 16, the baffles 16 fall and contact with the bottom of the inner sleeve 6, the corresponding needle holes are not at the same height, each baffle 16 is not aligned with the corresponding needle hole, one baffle 16 shields the needle hole of the adjacent baffle 16, thereby avoiding needle return, namely, when the puncture needle 1 retreats from the needle, the puncture needle punctures towards the direction of the hose seat 3; a stop block 17 for preventing the baffle 16 from moving towards the bottom end of the inner sleeve 6 is arranged in the inner sleeve 6, and the stop block 17 is clamped or fixedly connected with the inner sleeve 6.
Interior sleeve pipe 6 overcoat in or embedded in the bottom of hose seat 3, be equipped with annular groove 3b and the first bellying 3c of a plurality of on hose seat 3 in proper order, the even interval distribution of circumference of hose seat 3 is followed to first bellying 3c, the tip of sleeve pipe 6 is equipped with the second bellying 6a with annular groove 3b matched with including, annular groove 3b and first bellying 3c are used for spacing interior sleeve pipe 6, make interior sleeve pipe 6 under a definite force effect, just can break away from hose seat 3.
The outer sleeve 8 is provided with symmetrical operating handles 9, the operating surface of the operating handle 9 is provided with a plurality of convex edges 10, and the convex edges 10 are used for increasing friction force and preventing slipping.
The operating handle 9 is an inverted U-shaped structure, the bottom end of the operating handle 9 is fixedly connected with the outer sleeve 8, and the operating handle 9 and the outer sleeve 8 are integrally formed.
A conventional operating handle 9 may also be provided on one side of the outer sleeve 8.
Transparent end cap 19 at the bottom fixedly connected with of outer tube 8, pjncture needle 1 runs through outer tube 8 and extends to in the end cap 19, pjncture needle 1 and end cap 19 clearance fit, there is the interval bottom and the bottom of end cap 19 of pjncture needle 1, the bottom of pjncture needle 1 is opened, be equipped with the opening in the bottom of end cap 19, be fixed with the ventilated membrane 20 of being made by ventilative impervious material at the opening part, ventilated membrane 20 can adopt the PTFE membrane to make, the blood return mode of this kind of the needle of keeping somewhere of setting up the form is the blood return in the bottom of pjncture needle 1, there is not the opening in the side on pjncture needle 1 top, this kind of form is fit for with the less pjn.
When the transparent end cap 19 is not provided at the bottom end of the outer sleeve 8, the indwelling needle adopts blood return at the top of the puncture needle 1, i.e., an opening is provided at the side of the top end of the puncture needle 1 for blood return.
As shown in fig. 11, 12 and 13, an anti-overflow plug is arranged in the hose base 3, and includes a soft rubber plug 14 and a fixed base 15, both the upper portion 14a of the soft rubber plug and the lower portion 14b of the soft rubber plug are cylinders, the diameter of the upper portion 14a of the soft rubber plug is greater than that of the lower portion 14b of the soft rubber plug, the soft rubber plug 14 is integrally T-shaped, the lower portion 14b of the soft rubber plug is provided with a needle hole 14d matched with the puncture needle 1 of the indwelling needle, a mounting hole 15b is arranged in the fixed base 15, the lower portion 14b of the soft rubber plug is arranged in the mounting hole 15b of the fixed base 15, the mounting hole 14d is a stepped hole, the mounting hole 14d includes a first hole 150 and a second hole 152, the second hole 152 is close to the bottom end of the hose base 3, the lower portion 14b of the soft rubber plug is arranged in the mounting hole 14d and is in interference fit with the second hole 152, the rest positions of the lower portion 14, the fixed seat 15 is in clearance fit with the hose seat 3, an annular boss 15a is arranged on the outer wall of the fixed seat 15, a first annular convex part 3a used for shielding the annular boss 15a is arranged in the hose seat 3, and the first annular convex part 3a is tightly matched with the end face of the annular boss 15a in a propping manner to limit the anti-overflow plug; the puncture needle 1 of the remaining needle penetrates through the anti-overflow plug, the puncture needle 1 is matched with the needle hole 14d of the soft rubber plug 14, and the inner wall of the needle hole 14d wraps the puncture needle 1 to prevent blood from flowing out; the anti-overflow plug can also ensure that the side opening on the puncture needle 1 can not leak blood in the process of withdrawing the needle under the condition of ensuring that medical workers can feel extremely small resistance when withdrawing the needle.
The first annular protruding portion 3a is conical, and the large end and the low end of the top end of the first annular protruding portion 3a are small, so that assembly is facilitated.
The upper part 14a of the soft rubber plug is a part with larger outer diameter and is close to the needle point of the puncture needle 1, and the lower part 14b of the soft rubber plug is a part with smaller outer diameter and is close to the needle tail of the puncture needle 1.
Be equipped with between first hole 150 and second hole 152 and be the transition hole 151 of taper shape, the one end that transition hole 151 is close to first hole 150 is big, soft rubber stopper 14 and transition hole 151 interference fit, transition hole 151 plays the transition effect, be convenient for install soft rubber stopper 14, the length of soft rubber stopper lower part 14b is marked as f, the length of soft rubber stopper lower part 14b and mounting hole 15b interference fit is marked as g, the scope of g is 0.2f-0.35f, the fixing base 15 is great to the extrusion force of this interference fit department, increase the wrapping force of soft rubber stopper 14 to puncture needle 1, guarantee the wrapping force of soft rubber stopper 14 to puncture needle 1, avoid blood to flow.
As shown in fig. 14 and 15, the mounting hole 15b is a cylindrical hole, and the lower portion 14b of the soft rubber plug is in transition fit with the fixed seat 15.
As shown in fig. 16 and 17, the mounting hole 15b is a cylindrical hole, and the lower portion 14b of the soft rubber plug is in interference fit with the fixed seat 15.
As shown in fig. 9, 18, and 19, the mounting hole 15b is a cylindrical hole, the lower portion 14b of the soft rubber plug is provided with a second annular bulge 14c, the second annular bulge 14c is in interference fit with the mounting hole 15b to increase the wrapping force of the soft rubber plug 14 on the puncture needle 1, the second annular bulge 14c is close to the bottom end of the soft rubber plug 14, the length of the lower portion 14b of the soft rubber plug is denoted as f, the length of the second annular bulge 14c is denoted as h, and the range of h is 0.2f-0.35 f.
The bottom of second annular bulge 14c and the bottom parallel and level of soft plug 14, at the both ends fillet of second annular bulge 14c, the installation of being convenient for.
The needle hole 14d extends to the upper portion 14a of the soft rubber plug, the length of the upper portion 14a of the soft rubber plug is recorded as i, the length of the needle hole 14d on the upper portion 14a of the soft rubber plug is recorded as j, the range of the j is 0.2 i-0.35 i, the wall of the needle hole 14d is tightly attached to the puncture needle 1, blood is prevented from flowing out, the wrapping force of the anti-overflow plug on the puncture needle 1 is relatively reduced, and operation of medical staff is facilitated.
Above-mentioned anti-overflow stopper when guaranteeing that the needle point of pjncture needle 1 moves back into the anti-overflow stopper, under the condition that the side opening on pjncture needle 1 still is in the anti-overflow stopper, reduces the package power of anti-overflow stopper to pjncture needle 1, the medical personnel of being convenient for operate, when using, install the anti-overflow stopper in fixing base 15, then install the anti-overflow stopper in keeping somewhere the hose seat 3 of needle, make the annular boss 15a of fixing base 15 closely cooperate with first annular bellying 3a in the hose seat 3, accomplish the assembly.
When in use, the novel multifunctional indwelling needle is used according to the standard operation, namely, the tourniquet is pricked, the needle protecting cap is removed, the puncture needle 1 is loosened left and right, the needle point inclined plane is upwards to puncture the vein at 15 to 30 degrees, the angle is reduced to 5 to 10 degrees after blood return is seen, the needle is continuously inserted for 2 millimeters, the puncture needle is withdrawn for 12 millimeters to 3 millimeters, when the needle is withdrawn, the puncture needle 1 is withdrawn in place by observing the exit of the indicating boss 7, the puncture needle 1 is shown to retreat in place, the needle holder is held to completely feed the catheter and the puncture needle 1 into the blood vessel together, the tourniquet is released to open the speed regulator, the puncture needle 1 is completely withdrawn, when the puncture needle 1 is withdrawn, the outer sleeve 8 is held to enable the outer sleeve 8 to move backwards along the wall of the middle sleeve 18, when the outer clamping tube is tightly propped against the middle limiting boss 18b, the outer sleeve 8 continues to move backwards, the middle sleeve 18 is driven by the outer, the outer sleeve 8 continues to move backwards, the outer sleeve 8 drives the middle sleeve 18 to move backwards, the middle sleeve 18 drives the inner sleeve 6 to move backwards, the inner sleeve 6 is separated from the hose seat 3 under the action of tensile force, the puncture needle 1 is wrapped in the inner sleeve 6, the middle sleeve 18 and the outer sleeve 8, medical personnel are prevented from being punctured by the puncture needle 1, the soft gasket 4 is enabled to be in contact with the skin of a patient, and finally the indwelling needle is fixed.
In the utility model, the front end or top end or front part of the part refers to the end of the part close to the needle point of the puncture needle, and the rear end or bottom part of the part refers to the end of the part away from the needle point of the puncture needle; the terms "first," "second," and the like in the present invention do not have specific meanings, but are merely convenient for description and understanding.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims (9)

1. The utility model provides a novel multi-functional needle of keeping somewhere, includes hose seat, its characterized in that: be equipped with the soft gasket that is used for preventing pressing the sore on the hose seat, be equipped with in the bottom of hose seat and prevent the acupuncture subassembly, prevent that the acupuncture subassembly includes interior sleeve pipe, including the cover is equipped with the outer tube that can follow interior sleeve pipe removal on the sleeve pipe, interior sleeve pipe is connected with the bottom of hose seat, be equipped with the pjncture needle in the outer tube, the pjncture needle runs through interior sleeve pipe and hose seat in proper order, the bottom and the outer tube fixed connection of pjncture needle are equipped with the instruction structure that is used for judging the needle distance of moving back.
2. The novel multifunctional indwelling needle according to claim 1, wherein: the soft gasket is provided with a plurality of through holes, and the bottom of the soft gasket is provided with a plurality of grooves which are arranged at intervals; the soft gasket is arranged at the position of the hose seat, which is contacted and fixed with the body surface of a human body, and the width of the soft gasket is larger than the diameter of the hose seat.
3. The novel multifunctional indwelling needle according to claim 1, wherein: set up a plurality of bayonet socket on the sleeve pipe including, the bayonet socket distributes along interior sheathed tube circumference, be equipped with on the outer casing pipe with interior sleeve pipe on bayonet socket matched with instruct the boss, instruct the boss setting in the bayonet socket, when accomplishing the withdrawal pjncture needle, instruct the boss to withdraw from interior sleeve pipe bayonet socket.
4. The novel multifunctional indwelling needle according to claim 1, wherein: be equipped with well sleeve pipe between interior sleeve pipe and outer tube, interior sleeve pipe and outer tube are connected through well sleeve pipe, and well sleeve pipe removal can be followed to the outer tube, and well sleeve pipe can be followed interior sleeve pipe and removed, and the pjncture needle runs through well sleeve pipe.
5. The novel multifunctional indwelling needle according to claim 4, wherein: the middle limiting boss is arranged at the bottom end of the middle sleeve, the middle snap ring is arranged at the top end of the middle sleeve, the outer snap ring matched with the middle limiting boss is arranged at the top end of the outer sleeve, the inner limiting boss matched with the middle snap ring is arranged at the bottom end of the inner sleeve, the middle snap ring tightly pushes the end face of the inner limiting boss when the middle sleeve moves to the bottom end of the middle sleeve, and the outer snap ring tightly pushes the end face of the middle limiting boss when the outer sleeve moves to the bottom end of the middle sleeve.
6. The novel multifunctional indwelling needle according to claim 1, wherein: at least 1 baffle plate is arranged in the inner sleeve, the baffle plate is in clearance fit with the inner sleeve, and the puncture needle penetrates through the baffle plate and is in clearance fit with the baffle plate; a stop dog used for preventing the separation blade from moving towards the bottom end of the inner sleeve is arranged in the inner sleeve.
7. The novel multifunctional indwelling needle according to claim 1, wherein: interior sleeve pipe overcoat is in or embedded in the bottom of hose seat, is equipped with the first bellying of ring channel and a plurality of on the hose seat in proper order, and the even interval distribution of circumference along the hose seat is followed to first bellying, including sheathed tube tip be equipped with ring channel matched with second bellying.
8. The novel multifunctional indwelling needle according to any one of claims 1 to 7, wherein: the bottom fixedly connected with of outer tube has transparent end cap, and the pjncture needle runs through the outer tube and extends to in the end cap, pjncture needle and end cap clearance fit, and there is the interval bottom and the bottom of end cap of pjncture needle, and the bottom of pjncture needle is opened, is equipped with the opening in the bottom of end cap, is fixed with the ventilated membrane of being made by ventilative impervious material at the opening part.
9. The novel multifunctional indwelling needle according to claim 1, wherein: an anti-overflow plug is arranged in the hose seat and comprises a soft rubber plug and a fixed seat, the upper part of the soft rubber plug and the lower part of the soft rubber plug are both cylinders, the diameter of the upper part of the soft rubber plug is larger than that of the lower part of the soft rubber plug, a needle hole matched with a puncture needle of a remaining needle is arranged at the lower part of the soft rubber plug, an installation hole is arranged in the fixed seat, and the lower part of the soft rubber plug is arranged in the installation hole of the; the mounting hole is a stepped hole and comprises a first hole and a second hole, the second hole is close to the bottom end of the hose seat, and the lower part of the soft rubber plug is in interference fit with the second hole; soft plug upper portion and hose seat interference fit, fixing base and hose seat clearance fit are equipped with annular boss on the outer wall of fixing base, are equipped with the first annular bellying that is used for sheltering from annular boss in the hose seat, and the terminal surface top of first annular bellying and annular boss is tight to be cooperated.
CN201920860649.9U 2019-06-10 2019-06-10 Novel multifunctional remaining needle Active CN211068436U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920860649.9U CN211068436U (en) 2019-06-10 2019-06-10 Novel multifunctional remaining needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920860649.9U CN211068436U (en) 2019-06-10 2019-06-10 Novel multifunctional remaining needle

Publications (1)

Publication Number Publication Date
CN211068436U true CN211068436U (en) 2020-07-24

Family

ID=71636669

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920860649.9U Active CN211068436U (en) 2019-06-10 2019-06-10 Novel multifunctional remaining needle

Country Status (1)

Country Link
CN (1) CN211068436U (en)

Similar Documents

Publication Publication Date Title
CN102029008B (en) Compound puncture drainage needle
CN208145046U (en) A kind of cardiovascular intervention puncture outfit
CN211214739U (en) Anti-overflow plug for indwelling needle and indwelling needle using same
CN211068436U (en) Novel multifunctional remaining needle
CN210844670U (en) Needling-prevention remaining needle capable of observing needle withdrawing distance
CN201750897U (en) Paracentesis tube-setting device
CN202173450U (en) Safe venous puncture needle
CN211068437U (en) Anti-needling protection device and indwelling needle using same
CN211213417U (en) Puncture outfit is intervene to department of neurology clinical practice
CN210750637U (en) Safety sheath for intravenous infusion needle
CN101912291A (en) Puncture cannulation instrument
CN209789976U (en) neurology artery trocar
CN205322983U (en) Blood is pjncture needle for internal medicine
CN213698354U (en) Insulin injection pen needle head not prone to needle breakage
CN210813115U (en) Prevent stabbing indwelling needle
CN218075007U (en) Disposable spiral connector type blood taking needle
US20130018278A1 (en) Blood Draw Catheter Top
CN209751176U (en) Puncture needle and puncture assembly
CN110639086A (en) Novel puncture-proof transfusion needle
CN211433196U (en) Disposable medical catheter needle
CN215534885U (en) Ultrasonic guide nerve block puncture needle
CN213217507U (en) Puncture needle for interventional therapy of cardiology
CN214804753U (en) Venous blood sampling transfusion device
CN215231070U (en) Be applied to blood sampling apparatus of keeping somewhere of neonate's umbilical cord department
CN211383156U (en) Withstand voltage type prevents that acupuncture stays needle

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant