CN214713698U

CN214713698U - Closed indwelling needle catheter assembly with separated isolation assembly

Info

Publication number: CN214713698U
Application number: CN202023255927.XU
Authority: CN
Inventors: 张建林; 金付林
Original assignee: Nantong Hengtai Medical Apparatus Co ltd
Current assignee: Nantong Hengtai Medical Apparatus Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-16
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to a indwelling needle technical field specifically is needle pipe subassembly is kept somewhere to enclosed type with disconnect-type isolation components, including keeping somewhere the needle main part, keep somewhere the needle main part including transparent needle tubing, and the fixed intercommunication of the bottom intermediate position of transparent needle tubing has soft pipe, the fixed embedding of the inside intermediate position of transparent needle tubing has the separation stopper, the inside top of transparent needle tubing is inserted and is equipped with the grab handle, and sliding connection between grab handle and the separation stopper, the bottom intermediate position welded fastening of grab handle has the steel needle. The utility model discloses a set up isolation mechanism and install the through-hole position in separation stopper bottom, elastic support through torsion spring for the inside of shutoff board movingly sealed dome removal block at the embedded groove, elastic deformation when cooperating the rubber pad atress fills, and the effectual seal stability who ensures embedded groove position department is convenient for avoid the steel needle to extract back the device outward and appear leaking the medicine and leak the blood phenomenon, the effectual safety and stability who ensures the device.

Description

Closed indwelling needle catheter assembly with separated isolation assembly

Technical Field

The utility model relates to an indwelling needle technical field specifically is an enclosed indwelling needle catheter assembly with disconnect-type isolation component.

Background

The indwelling needle is also called as a venous trocar, the core components of the indwelling needle comprise an injection needle tube consisting of a soft catheter and a stainless steel puncture guiding needle core, when in use, the catheter and the needle core are punctured into a blood vessel together, after the catheter completely enters the blood vessel, the needle core is withdrawn, and only the soft catheter is detained in the blood vessel so as to carry out infusion treatment, so that the pain of a child patient caused by repeated venipuncture and the fear of injection can be effectively reduced, and the indwelling needle is often used for intravenous injection of the child patient;

in the prior art, when a needle core is pulled out outwards during operation, the needle core is influenced by movement of the needle core, so that the closing of an isolation component inside the indwelling needle is easy to be incomplete, blood or medicine leaks from the pulled-out position of the needle core, and the use safety and stability of the indwelling needle are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a needle pipe subassembly is kept somewhere to enclosed type with disconnect-type isolation component to solve the needle of keeping somewhere among the prior art that proposes in the above-mentioned background art, it is when using, when the nook closing member of keeping somewhere needle inside is closed imperfect, leads to the problem that blood, liquid medicine leak easily.

In order to achieve the above object, the utility model provides a following technical scheme: needle pipe subassembly is kept somewhere to enclosed type with disconnect-type isolation components, including keeping somewhere the needle main part, it includes transparent needle pipe to keep somewhere the needle main part, and the fixed intercommunication of the bottom intermediate position of transparent needle pipe has soft pipe, the fixed embedding of the inside intermediate position of transparent needle pipe has the separation stopper, the inside top of transparent needle pipe is inserted and is equipped with the grab handle, and sliding connection between grab handle and the separation stopper, the bottom intermediate position welded fastening of grab handle has the steel needle, the through-hole has been seted up to the intermediate position of separation stopper, the steel needle runs through in the through-hole that the intermediate position of separation stopper was seted up, the steel needle runs through and inserts the inside of establishing at soft pipe, there is the malleation joint through the hose intercommunication on the lateral wall of transparent needle pipe, the hose connection of intercommunication is in the bottom of malleation joint on the lateral wall of transparent needle pipe, isolation mechanism is installed to the bottom of separation stopper, and isolation mechanism is including the fixed axle, the fixed axle sets up the middle through-hole border position at the separation stopper, the fixed welding of fixed axle is in the bottom of separation stopper, the outside of fixed axle is rotated and is connected with the shutoff board, the outside cover of fixed axle is equipped with torque spring, and the fixed welding of torque spring's one end is on the fixed axle, the fixed welding of torque spring's the other end is on the shutoff board, the shutoff board passes through the elastic rotation between torque spring and the fixed axle and is connected, the edge of separation stopper middle position through-hole is provided with the dog, and dog welded fastening is on the separation stopper.

Preferably, the embedded groove has been seted up to the bottom intermediate position of separation stopper, and the intermediate position through-hole of embedded groove and separation stopper is linked together, the shutoff board is close to the fixed welding in one side of separation stopper has sealed dome, and the inside size looks adaptation of the outside size of sealed dome and embedded groove, torque spring installs the position between the bottom of fixed axle and the below of shutoff board.

Preferably, the rubber pad is fixedly installed in the embedding groove, and the rubber pad is fixedly wrapped on the outer side of the through hole in the middle position of the bottom of the blocking plug in a circular ring shape.

Preferably, the outer wall of the grab handle is fixedly welded with a force application block, the shape of the force application block is flat, and the force application block is parallel to the horizontal plane.

Preferably, the internally mounted that the malleation connects has the subassembly of preventing flowing backwards, and prevents flowing backwards the subassembly including communicating pipe, the fixed intercommunication of one end of communicating pipe is in the right side outer wall top position that the malleation connects, the fixed intercommunication of the other end of communicating pipe is in the right side outer wall below position that the malleation connects, the inside that the malleation connects is inlayed and is had the valve piece, and sliding connection between valve piece and the malleation joint, the bottom fixed mounting of valve piece has the reed, and the bottom fixed mounting of reed is on the inner wall that the malleation connects, the bottom setting of reed is in the top of a set of intercommunication mouth in the below of communicating pipe.

Preferably, the outer wall of transparent needle tubing is gone up to be fixed the parcel has the band, and one side of band is fixed to be sewed up has the magic and pastes the hook face, the opposite side of band is fixed to be sewed up has the magic to paste the hair face.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the isolating mechanism is arranged at the position of the through hole at the bottom of the isolating plug, and the elastic support of the torsion spring is used for losing the blocking of the steel needle when the steel needle is pulled out outwards, so that the blocking plate drives the sealing round cover to be movably clamped in the embedded groove, and the elastic deformation is filled when the rubber gasket is stressed, thereby effectively ensuring the sealing stability at the position of the embedded groove, being convenient for avoiding the phenomenon of medicine leakage and blood leakage of the device after the steel needle is pulled out outwards, and effectively ensuring the safety stability of the device;

2. prevent the inside that the refluence subassembly installed at the malleation connects through the setting, elastic support through the reed for the device top does not have the medicine supply, and perhaps malleation connects top medicine supply pressure when too little, under the elastic support of reed, the shutoff communicating pipe is shifted up to the valve block, and the blood reflux phenomenon appears in the effectual device of avoiding, is convenient for ensure the device's safety in utilization stability.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic perspective sectional view of the structure of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a schematic view of the structure of the transparent needle tube, the separating plug and the steel needle of the present invention;

fig. 4 is a schematic view of the structure of the barrier plug according to the present invention.

In the figure: 100. a main body of the indwelling needle; 110. a transparent needle tube; 120. a soft catheter; 130. a blocking plug; 140. a handle; 150. a steel needle; 160. a positive pressure joint; 200. an isolation mechanism; 210. a fixed shaft; 220. a plugging plate; 230. a torsion spring; 240. a stopper; 250. a groove is embedded; 260. sealing the round cover; 270. a rubber pad; 300. a force application block; 400. a backflow prevention assembly; 410. a communicating pipe; 420. a valve block; 430. a reed; 500. and (4) a belt.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: an enclosed indwelling needle catheter component with a separated isolation component comprises an indwelling needle body 100, the indwelling needle body 100 comprises a transparent needle tube 110, a soft catheter 120 is fixedly communicated with the middle position of the bottom of the transparent needle tube 110, a separation plug 130 is fixedly embedded in the middle position of the inside of the transparent needle tube 110, a grab handle 140 is inserted above the inside of the transparent needle tube 110 and is in sliding connection with the separation plug 130, a steel needle 150 is fixedly welded at the middle position of the bottom of the grab handle 140, a through hole is formed in the middle position of the separation plug 130, the steel needle 150 penetrates through the through hole formed in the middle position of the separation plug 130, the steel needle 150 is inserted in the soft catheter 120, a positive pressure connector 160 is communicated with the side wall of the transparent needle tube 110 through a hose, the hose communicated with the side wall of the transparent needle tube 110 is connected to the bottom of the positive pressure connector 160, an isolation mechanism 200 is installed at the bottom of the separation plug 130, the isolating mechanism 200 comprises a fixing shaft 210, the fixing shaft 210 is arranged at the edge of the middle through hole of the blocking plug 130, the fixing shaft 210 is fixedly welded at the bottom of the blocking plug 130, the outer side of the fixing shaft 210 is rotatably connected with a blocking plate 220, the outer side of the fixing shaft 210 is sleeved with a torsion spring 230, one end of the torsion spring 230 is fixedly welded on the fixing shaft 210, the other end of the torsion spring 230 is fixedly welded on the blocking plate 220, the blocking plate 220 is elastically and rotatably connected with the fixing shaft 210 through the torsion spring 230, a stop 240 is arranged at the edge of the middle through hole of the blocking plug 130, the stop 240 is fixedly welded on the blocking plug 130, the torsion spring 230 is elastically supported between the fixing shaft 210 and the blocking plate 220, so that after the steel needle 150 is separated from the through hole at the middle position of the blocking plug 130, the blocking plate 220 is rotated to cover the bottom of the middle through hole of the blocking plug 130 to match the blocking of the stop 240, the excessive deflection angle of the blocking plate 220 is effectively avoided, and the communication leakage between the through hole at the middle position of the blocking plug 130 and the outside is effectively avoided through the blocking of the blocking plate 220, so that the safety and stability of the device are effectively guaranteed;

furthermore, an embedded groove 250 is formed in the middle of the bottom of the blocking plug 130, the embedded groove 250 is communicated with a through hole in the middle of the blocking plug 130, a sealing round cap 260 is fixedly welded on one side, close to the blocking plug 130, of the blocking plate 220, the outer side size of the sealing round cap 260 is matched with the inner size of the embedded groove 250, the torsion spring 230 is installed between the bottom of the fixing shaft 210 and the lower portion of the blocking plate 220, the embedded groove 250 is formed in the middle of the bottom of the blocking plug 130, the outer side size of the sealing round cap 260 is matched with the inner size of the embedded groove 250, the sealing round cap 260 can be embedded into the embedded groove 250 after rotating through elastic extrusion of the torsion spring 230, and the sealing and isolating effects at the position of the embedded groove 250 are effectively guaranteed;

further, a rubber pad 270 is fixedly installed inside the embedded groove 250, the rubber pad 270 is fixedly wrapped outside a through hole in the middle position of the bottom of the blocking plug 130 in a circular ring shape, and is fixedly attached inside the embedded groove 250 by arranging the rubber pad 270, when the sealing round cover 260 extrudes the rubber pad 270, the rubber pad 270 is deformed and filled at the joint of the sealing round cover 260 and the embedded groove 250, the sealing effect at the position of the embedded groove 250 is effectively guaranteed by the deformed filling of the rubber pad 270, and the phenomenon of liquid medicine blood leakage is conveniently avoided;

further, the force application block 300 is fixedly welded on the outer wall of the grab handle 140, the shape of the force application block 300 is flat, the force application block 300 is parallel to the horizontal plane, and the force application block 300 is fixed on the outer wall of the grab handle 140, so that the force application block is beneficial to enabling a worker to conveniently apply force to the grab handle 140 when pulling out the steel needle 150;

further, the anti-backflow assembly 400 is installed inside the positive pressure joint 160, the anti-backflow assembly 400 includes a communication pipe 410, one end of the communication pipe 410 is fixedly communicated with a position above the right outer wall of the positive pressure joint 160, the other end of the communication pipe 410 is fixedly communicated with a position below the right outer wall of the positive pressure joint 160, a valve block 420 is embedded inside the positive pressure joint 160, and the valve block 420 is connected with the positive pressure joint 160 in a sliding way, the bottom of the valve block 420 is fixedly provided with a reed 430, and the bottom of the reed 430 is fixedly installed on the inner wall of the positive pressure joint 160, the bottom of the reed 430 is disposed above a set of communication ports below the communication pipe 410, by arranging the reed 430 to elastically support the valve block 420, when the pressure above the valve block 420 is small, the device is elastically supported by the reed 430, the valve block 420 is moved upwards to reset, and the communication position above the communicating pipe 410 is blocked, so that the internal blood backflow is effectively avoided when the device is used;

furthermore, the outer wall of the transparent needle tube 110 is fixedly wrapped with the belt 500, one side of the belt 500 is fixedly sewn with the hook-and-loop fastening surface, the other side of the belt 500 is fixedly sewn with the hook-and-loop fastening surface, and the transparent needle tube 110 of the device can be fixedly and firmly fixed on the body of the infant patient through the arrangement of the belt 500 and wrapping of the belt 500, so that the stability of the device in use is effectively guaranteed;

the working principle is as follows: when the device is used, liquid medicine enters the interior of the positive pressure joint 160 from the upper part of the positive pressure joint 160, under the action of atmospheric pressure, the liquid medicine pushes the valve block 420 downwards, and the liquid medicine flows around the communicating pipe 410 to enter the lower position of the interior of the positive pressure joint 160 and enters the interior of the transparent needle tube 110 through the hose;

when in operation, the medical staff inserts the soft catheter 120 inserted with the steel needle 150 into the blood vessel on the arm of the infant, and then the medical staff winds the band 500 around the arm of the infant, and is adhered and fixed with the hook-and-loop fastener surface on the binding band 500, the medical care personnel presses the transparent needle tube 110, and the other hand is used to pinch the force application block 300 to draw outwards, so that the handle 140 slides outwards out of the interior of the transparent needle tube 110, and drives the steel needle 150 to exit from the soft catheter 120 and the blocking plug 130, when the steel needle 150 exits, the blocking of the steel needle 150 is lost, under the elastic support of the torsion spring 230, the plugging plate 220 is rotated to drive the sealing cap 260 to be inserted into the insertion groove 250, through the extrusion of sealed dome 260 for rubber pad 270 elastic deformation fills the junction between embedded groove 250 and sealed dome 260, above does the utility model discloses a whole theory of operation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Needle catheter subassembly is kept somewhere to enclosed type with disconnect-type keeps apart subassembly, includes keeping somewhere needle main part (100), its characterized in that: keep somewhere needle main part (100) including transparent needle tubing (110), and the fixed intercommunication of the bottom intermediate position of transparent needle tubing (110) has soft pipe (120), the fixed inlaying of the inside intermediate position of transparent needle tubing (110) has separation stopper (130), the inside top of transparent needle tubing (110) is inserted and is equipped with grab handle (140), and sliding connection between grab handle (140) and separation stopper (130), the bottom intermediate position welded fastening of grab handle (140) has steel needle (150), the through-hole has been seted up to the intermediate position of separation stopper (130), steel needle (150) run through in the through-hole that the intermediate position of separation stopper (130) was seted up, steel needle (150) run through and insert the inside of establishing at soft pipe (120), there is positive pressure joint (160) through the hose intercommunication on the lateral wall of transparent needle tubing (110), the hose connection of intercommunication on the lateral wall of transparent needle tubing (110) is in the bottom of positive pressure joint (160), the bottom of the blocking plug (130) is provided with an isolation mechanism (200), the isolation mechanism (200) comprises a fixed shaft (210), the fixed shaft (210) is arranged at the edge position of the middle through hole of the obstruction plug (130), the fixed shaft (210) is fixedly welded at the bottom of the blocking plug (130), the outer side of the fixed shaft (210) is rotatably connected with a blocking plate (220), the outer side of the fixed shaft (210) is sleeved with a torsion spring (230), one end of the torsion spring (230) is fixedly welded on the fixed shaft (210), the other end of the torsion spring (230) is fixedly welded on the plugging plate (220), the blocking plate (220) is elastically and rotatably connected with the fixed shaft (210) through a torsion spring (230), the edge of the through hole in the middle of the blocking plug (130) is provided with a stop block (240), and the stop block (240) is welded and fixed on the blocking plug (130).

2. The enclosed indwelling needle catheter assembly with breakaway assembly, of claim 1, wherein: embedded groove (250) have been seted up to the bottom intermediate position of separation stopper (130), and embedded groove (250) are linked together with the intermediate position through-hole of separation stopper (130), shutoff board (220) are close to one side fixed weld in separation stopper (130) have sealed dome (260), and the outside size of sealed dome (260) and the inside dimension looks adaptation of embedded groove (250), position between the below of the bottom of fixed axle (210) and shutoff board (220) is installed in torque spring (230).

3. The enclosed indwelling needle catheter assembly with breakaway assembly, of claim 2, wherein: the inside fixed mounting of embedded groove (250) has rubber pad (270), and rubber pad (270) are fixed the outside of wrapping up at separation stopper (130) bottom intermediate position through-hole for the ring form.

4. The enclosed indwelling needle catheter assembly with breakaway assembly, of claim 1, wherein: the outer wall of the grab handle (140) is fixedly welded with a force application block (300), the shape of the force application block (300) is flat, and the force application block (300) is parallel to the horizontal plane.

5. The enclosed indwelling needle catheter assembly with breakaway assembly, of claim 1, wherein: the internally mounted that malleation connects (160) has anti-backflow subassembly (400), and anti-backflow subassembly (400) including communicating pipe (410), the fixed intercommunication of the one end of communicating pipe (410) connects the right side outer wall top position of (160) at the malleation, the fixed intercommunication of the other end of communicating pipe (410) connects the right side outer wall below position of (160) at the malleation, the inside that malleation connects (160) is inlayed and is had valve block (420), and valve block (420) and malleation connect sliding connection between (160), the bottom fixed mounting of valve block (420) has reed (430), and the bottom fixed mounting of reed (430) connects on the inner wall of (160) at the malleation, the bottom setting of reed (430) is in the top of a set of intercommunication mouth in the below of communicating pipe (410).

6. The enclosed indwelling needle catheter assembly with breakaway assembly, of claim 1, wherein: the outer wall of transparent needle tubing (110) is fixed with parcel band (500), and one side of band (500) is fixed to be sewed up has the magic tape hook face, the opposite side of band (500) is fixed to be sewed up has the magic tape hair face.