CN114870208A

CN114870208A - Intubation device integrating catheter, guide wire and puncture needle

Info

Publication number: CN114870208A
Application number: CN202210811570.3A
Authority: CN
Inventors: 付健; 刘海沛; 翟近涛; 田晓雷
Original assignee: Shandong Ande Medical Supplies Co ltd
Current assignee: Shandong Ande Medical Supplies Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-08-09
Anticipated expiration: 2042-07-12
Also published as: CN114870208B

Abstract

The invention relates to an intubation device integrating a catheter, a guide wire and a puncture needle, and belongs to the technical field of medical instruments for inserting the catheter into the body of a patient. The invention relates to an intubation device integrating a catheter, a guide wire and a puncture needle into a whole, which comprises a shell, wherein the shell comprises an upper shell and a lower shell which are arranged oppositely and can be separated, accommodating cavities are formed in the upper shell and the lower shell, and a needle seat, an anti-acupuncture component, a pushing seat and a catheter component are sequentially arranged in the accommodating cavities from a first end to a second end. Run through the casing and be equipped with seal wire direction push pedal, seal wire propelling movement subassembly connection direction push pedal, in the upper casing was located to the direction push pedal, the direction push pedal was used for propelling movement seal wire. The invention overcomes the defects of the prior art and provides the intubation device integrating the catheter, the guide wire and the puncture needle into a whole, the guide wire can guide the insertion of a longer catheter, the catheter can accurately enter a subcutaneous deeper blood vessel, the scratch of the catheter to the blood vessel wall is reduced, the operation is smooth and convenient, the intubation success rate is high, the exposure of the catheter and the guide wire during intubation operation is less, and the infection risk is low.

Description

Intubation device integrating catheter, guide wire and puncture needle

Technical Field

The invention relates to an intubation device integrating a catheter, a guide wire and a puncture needle, and belongs to the technical field of medical instruments for inserting the catheter into the body of a patient.

Background

In the field of vascular access, peripheral venous indwelling needles (PIVC) are most widely used and are often the "default" Vascular Access Device (VAD) which ignores what type and treatment time is appropriate. Billions of PIVCs are purchased annually worldwide, and their popularity benefits from their "easy" insertion feature and lower price. However, the PIVC is short in length, ranges from 2 cm to 4.5cm, is usually placed at the movable positions such as wrists and the like, has high dislocation risk, and can cause blood return in the catheter due to the movement of the puncture part to cause blood coagulation blockage; in addition, as the PIVC implantation position is limited in superficial blood vessels, the diameters of the blood vessels are small, the blood flow is small, and the medicine at the outlet of the catheter cannot be quickly diluted, so that phlebitis and medicine extravasation are easily caused. Currently, more and more people are realizing that PIVC is associated with a higher incidence of complications, such as: catheter blockage, drug extravasation, phlebitis, catheter dislocation and infection. The high incidence of these complications greatly limits the duration of use of the PIVCs, which usually requires a residence time of not more than 72 hours, and most inpatients often require 1-4 weeks of infusion therapy, so that these patients need to insert a plurality of PIVCs or select an expensive peripherally inserted central catheter (PICC for short, which can be left for 1 year) during hospitalization to meet the infusion needs.

In order to meet the requirement of inpatients for medium-long-term (within 30 days) infusion, a Midline Catheter, namely Midline cathter, MC for short, appears in China in recent years, and MC catheters which are on the market at present are simply transformed based on PICC or PIVC. Based on the transformation of the PICC, the length of the PICC is simply shortened, and the cost cannot be effectively reduced by the PICC with the shortened length; the reliability and operability of the PIVC-based reconstruction are to be improved.

In order to solve the problems, the invention aims to provide the MC, which integrates the steps of puncture, guide wire feeding, intubation and the like, can guide a longer catheter to be inserted through the guide wire, can accurately enter a subcutaneous deeper blood vessel, reduces the scratch of the catheter to the blood vessel wall, is smooth and convenient to operate, has high success rate of catheterization, is less in exposure of the catheter and the guide wire during catheterization operation, and has low infection risk.

Disclosure of Invention

The invention overcomes the defects of the prior art and provides the intubation device integrating the catheter, the guide wire and the puncture needle into a whole, the guide wire can guide the insertion of a longer catheter, the catheter can accurately enter a subcutaneous deeper blood vessel, the scratch of the catheter to the blood vessel wall is reduced, the operation is smooth and convenient, the intubation success rate is high, the exposure of the catheter and the guide wire during intubation operation is less, and the infection risk is low.

The intubation device integrating the catheter, the guide wire and the puncture needle into a whole comprises a shell, wherein the shell comprises an upper shell and a lower shell which are oppositely arranged and can be separated, accommodating cavities are formed in the upper shell and the lower shell, the first ends of the upper shell and the lower shell are connected, the second end of the lower shell is wrapped and extends upwards from two sides of the upper shell and then is bent inwards to form a sliding groove, an upwards protruding sliding rail is arranged above the upper shell corresponding to the sliding groove, and the second end of the upper shell extends outwards from the tail end of the sliding groove to two sides and then is bent inwards to form a separation groove;

a needle seat, a pushing seat and a catheter assembly are sequentially arranged in the accommodating cavity from the first end to the second end; the needle stand is connected with the lower shell; the pushing seat is connected with the catheter component, the needle seat is provided with a puncture needle, and the puncture needle penetrates through the pushing seat and the catheter component to be arranged;

a guide wire pushing assembly is arranged through the upper shell and comprises a guide wire, one end of the guide wire is fixed in the middle of the upper shell, the guide wire is made of soft elastic materials, and the guide wire penetrates through the needle seat, the puncture needle, the anti-puncture assembly, the pushing seat and the catheter assembly to be arranged; the guide wire pushing assembly further comprises a guide wire push rod, a push rod clamping jaw is arranged at the second end of the guide wire push rod, and the push rod clamping jaw comprises a sliding channel groove matched with the sliding rail; the outer side of the push rod claw is outwards provided with a sliding block matched with the sliding groove and the separating groove; go up the casing middle part and offer the push away the groove, the first end of seal wire push rod is in pushing away inslot interconnect propelling movement subassembly, and in the upper casing was located to the propelling movement subassembly, the propelling movement subassembly corresponded the seal wire and arranged, and the propelling movement subassembly is used for propelling movement seal wire.

Working process or working principle:

the second end of the shell is held by one hand, the puncture needle punctures, the other hand pushes the guide wire push rod to move towards the second end of the shell, the guide wire push rod moves to drive the guide wire to move, and the upper shell and the lower shell are separated until the push rod clamping jaws are pushed into the separation groove; then the operation wing is held by hand to drive the catheter component and the anti-acupuncture component to move towards the second end of the shell; along with the movement of the anti-acupuncture component, the puncture needle retracts into the anti-acupuncture component, and the pushing seat is separated from the anti-acupuncture component; and manually separating the pushing seat from the catheter assembly, and keeping the catheter assembly in a human body to complete the catheter implantation.

Preferably, when the guide wire pushing assembly is in an initial state, the sliding block is positioned in the sliding groove of the upper shell, and the second ends of the upper shell and the lower shell are in a connected state and encircle the catheter and the puncture needle;

based on different requirements, the human body implantation tube is divided into an MC tube and a PIVC tube, wherein the MC tube is longer and generally reaches 6-25cm, and has a longer retention period which can reach 30 days; whereas the PIVC catheter retention period is only 1-3 days. Meanwhile, because the MC catheter is longer than the PIVC catheter, the needle tube of the conventional MC catheter is very slender and easy to bend during puncture, and the failure rate is high. The intubation device integrating the catheter, the guide wire and the puncture needle into a whole has the advantages that during puncture, the distance from the needle point to the ring-holding part is short, the puncture needle is not easy to bend, and the puncture success rate is high.

When the guide wire pushing assembly is pushed to the final state, the guide pushing plate pushes the guide wire to be pushed out from the inner hole of the needle tip of the puncture needle, the sliding block is located in the separation groove of the upper shell, and the second end of the upper shell and the second end of the lower shell are in the separation state at the moment.

Preferably, the guide push plate comprises a guide limit plate and a push plate, the second end of the guide limit plate is connected with the first end of the guide wire push rod in the push groove, an open guide limit groove is formed in one side of the guide limit plate downwards, and a limit block is arranged below the middle part of the guide limit groove; the push pedal is connected to the first end of direction limiting plate, and the push pedal deviates from the vertical propelling movement strip that is equipped with of seal wire one end, and the direction limiting plate is used for spacing the seal wire, and the propelling movement strip is used for promoting the seal wire and removes.

Preferably, the push plate is provided with a guide strip near one end of the guide wire, the guide wire is arranged between the guide strip and the pushing strip, and the guide strip is used for adjusting and guiding the direction of the guide wire.

Preferably, the inner wall of the middle part of the upper shell is clamped with a fixed block, the fixed block is connected with a guide wire, the middle part of the fixed block is provided with a guide wire hole, the guide wire hole is fixedly connected with the guide wire, two sides of the fixed block are outwards extended to be provided with fixed clamping tables, and the fixed clamping tables are inclined fixed clamping tables with gradually increasing widths from top to bottom;

the upper casing is correspondingly provided with two clamping plates which are arranged side by side corresponding to the fixed clamping table, the two clamping plates correspondingly form a clamping table groove, and the fixed clamping table and the clamping table groove are mutually matched to realize the fastening connection of the upper casing and the fixed block.

Preferably, a needle-prick preventing assembly is arranged between the needle base and the pushing base, the puncture needles penetrate through the needle-prick preventing assembly and are arranged, the needle-prick preventing assembly comprises a needle-prick preventing base, a needle-prick preventing elastic sheet is arranged in the needle-prick preventing base, a first end of the needle-prick preventing elastic sheet is provided with an elastic sheet base, and the elastic sheet base is clamped with the needle-prick preventing base; a connecting sheet is obliquely arranged below the elastic sheet seat from bottom to top, the tail end of the connecting sheet is upwards protruded to be provided with a connecting clamping table, and the second end of the connecting clamping table is downwards bent to be provided with a needling-proof sheet;

the anti-needling slot is formed in the top of the anti-needling seat corresponding to the connecting clamping table, the anti-needling seat is sleeved at the first end of the pushing seat, the connecting clamping slot is formed in the first end of the pushing seat corresponding to the anti-needling slot, and the connecting clamping table extends out of the anti-needling slot and is matched with the connecting clamping slot to clamp the pushing seat;

the puncture needle comprises a needle point, a flat position is arranged close to the needle point, a limiting hole is formed in one end, far away from the connecting card table, of the elastic sheet seat, and corresponds to the flat position, and the limiting hole is used for limiting the flat position.

The puncture needle penetrates through the anti-puncture seat and the elastic sheet seat, the connecting clamping table extends out of the anti-puncture groove and the connecting clamping groove, and the pushing seat is connected with the anti-puncture assembly; after the propelling movement seat is moved to the second end of the shell, the puncture needle retracts into the anti-acupuncture seat, the connecting clamp platform retracts from the anti-acupuncture groove and the connecting clamp groove, the propelling movement seat is continuously propelled, and the propelling movement seat is separated from the anti-acupuncture component.

Preferably, the second end of the connecting clamping table is downwards inclined and bent to form the anti-needling piece, the bottom of the anti-needling piece is bent downwards and then is bent inwards to form the anti-needling table, and the anti-needling table can better protect a puncture needle from injuring medical staff.

Preferably, the periphery of the second end of the anti-acupuncture seat is provided with a sleeved outer groove, the sleeved outer groove corresponds to the sleeved outer groove, the first end of the pushing seat is provided with a sleeved inner groove, the sleeved outer groove and the sleeved inner groove are mutually matched, the sleeved outer groove and the sleeved inner sleeve are in non-tight fit, after the puncture needle is retracted into the anti-acupuncture seat, the connecting clamping table retracts from the anti-acupuncture groove and the connecting clamping groove, the pushing seat is continuously pushed, and the pushing seat is separated from the anti-acupuncture component.

Preferably, the needle stand comprises a connector, a limiting fixing table and a guide groove which are sequentially arranged, the connector is fixedly connected with the puncture needle, the limiting fixing table is clamped with the shell in a matched mode, the guide groove is used for limiting and guiding the guide wire, and the connector is used for fixedly connecting the puncture needle.

Preferably, a positioning sleeve is arranged outside the guide groove, and a connecting block is arranged between the positioning sleeve and the guide groove; the middle part of the positioning sleeve extends outwards and is provided with a buckle matched with the lower shell.

Preferably, the catheter component comprises a catheter seat, and the first end of the catheter seat is tightly connected with the pushing seat through a luer taper joint;

a catheter is arranged at the second end of the catheter seat and is sleeved outside the puncture needle;

the propelling movement seat includes the propelling movement seat body, and propelling movement seat body both sides are outwards extended and are equipped with the operation wing, and the casing corresponds the operation wing and offers the propelling movement groove.

Compared with the prior art, the invention has the beneficial effects that:

the invention realizes the intubation of the catheter, the guide wire and the puncture by integrating the casing, the anti-acupuncture component, the pushing seat, the catheter component, the guide wire guide push plate, the needle seat and the puncture needle, and controls the guide wire to move and the casing to be separated by the guide wire push rod; remove along the seal wire through propelling movement seat propelling movement pipe to realize propelling movement seat and prevent the separation of acupuncture subassembly, realize propelling movement seat and catheter subassembly separation, the human body is put into to final completion catheter subassembly, can accomplish the operation alone, can guide longer catheterization through the seal wire and insert, can accurately get into subcutaneous darker blood vessel, reduce the scratch of pipe to the vascular wall, the operation is smooth and easy convenient, put the pipe success rate height, pipe and seal wire expose less when putting the pipe operation, the infection risk is low.

Drawings

FIG. 1: a schematic structural diagram of an embodiment of the present invention;

FIG. 2: FIG. 1 is a schematic sectional view A-A;

FIG. 3: a schematic perspective view of an embodiment of the present invention;

FIG. 4: in one embodiment of the invention, the upper shell and the lower shell are separated and then have a three-dimensional structure;

FIG. 5: in one embodiment of the invention, the three-dimensional structure of the pushing seat and the anti-needling component is schematic after being separated;

FIG. 6: a three-dimensional structure schematic diagram of the connection state of the pushing seat and the needling prevention assembly;

FIG. 7: the front view of FIG. 6;

FIG. 8: the right side view of FIG. 7;

FIG. 9: the pushing seat and the needling prevention component are connected in a failure state and have a three-dimensional structure schematic diagram;

FIG. 10: FIG. 9 is a top view;

FIG. 11: FIG. 10 is a schematic sectional view of the structure of B-B;

FIG. 12: the three-dimensional structure schematic diagram of the anti-needling component;

FIG. 13: a schematic three-dimensional structure diagram of the puncture needle and the anti-puncture elastic sheet;

FIG. 14: the rear view of FIG. 13;

FIG. 15: the matching structure of the puncture needle and the anti-puncture elastic sheet is schematically shown after the puncture needle is retracted into the connecting clamping table;

FIG. 16: the schematic diagram of the three-dimensional structure of the anti-needling elastic sheet;

FIG. 17: a schematic view of a three-dimensional structure of the needle base;

FIG. 18: the upper shell, the guide limit plate and the fixed block are in a schematic structural view;

FIG. 19: the guide limit plate and the fixed block are schematically structured;

FIG. 20: a schematic three-dimensional structure of the fixed block;

FIG. 21: a fixed block front view;

FIG. 22: and (5) fixing block left view.

In the figure: 1. a housing; 2. puncturing needle; 3. a needle seat; 4. a needle-prick prevention assembly; 5. a pushing seat; 6. a catheter assembly; 7. a protective sleeve; 8. a guidewire pushing assembly;

11. an upper housing; 12. a lower housing; 13. an accommodating chamber; 14. a chute; 15. a disengagement groove; 16. a slide rail; 17. clamping a plate; 18. a clamping platform groove; 19. a push tank;

21. a needle tip; 22. flattening;

31. a connector; 32. a limiting fixing table; 33. a positioning sleeve; 34. a guide groove; 35. connecting blocks; 36. buckling;

41. a needle stick prevention base; 42. the anti-needling elastic sheet; 43. a spring plate seat; 44. connecting sheets; 45. connecting the clamping table; 46. a needlestick prevention sheet; 47. a needle-prick prevention groove; 48. a needle stick prevention station; 49. sleeving an outer groove;

411. a first through hole; 412. a second through hole;

421. a limiting hole; 422. a through hole;

51. a pushing seat body; 52. a connecting clamping groove; 53. an operating wing; 54. a luer taper fitting; 55. the inner groove is sleeved.

61. A catheter hub; 62. a conduit;

81. a guide wire push rod; 82. a push rod claw; 83. a chute; 84. a slider; 85. pushing the groove; 86. a guide limit plate; 87. a fixed block; 88. an open type guiding limit groove; 89. a limiting block; 90. a guide wire; 91. pushing the plate; 92. a guide bar; 93. pushing the strip; 94. fixing the clamping table; 95. a guide groove; 96. a guide rail; 97. a guide block; 98. a guide groove.

Detailed Description

Example 1

As shown in fig. 1 to 22, the intubation device integrating a catheter, a guide wire and a puncture needle according to the present invention integrates needle puncture, guide wire pushing and catheter pushing, and includes a housing 1, the housing 1 includes two upper housing 11 and a lower housing 12 which are separately arranged in an opposing manner, a receiving cavity 13 is provided in the upper housing 11 and the lower housing 12, a first end of the upper housing 11 is connected to a first end of the lower housing 12, a second end of the lower housing 12 is wrapped and extended upward from two sides of the upper housing 11 and then bent inward to form a sliding slot 14, a sliding rail 16 protruding upward is provided above the upper housing 11 corresponding to the sliding slot 14, and a second end of the upper housing 11 is bent inward after extending outward from a terminal of the sliding slot 14 to form a separation slot 15;

the needle seat 3, the anti-acupuncture component 4, the pushing seat 5 and the catheter component 6 are sequentially arranged in the accommodating cavity 13 from the first end to the second end; the needle seat 3 is connected with the lower shell 12; the anti-acupuncture component 4, the pushing seat 5 and the catheter component 6 are connected, a puncture needle is arranged on the needle seat 3, and the puncture needle penetrates through the anti-acupuncture component 4, the pushing seat 5 and the catheter component 6 to be arranged;

the pushing seat 5 comprises a pushing seat body 51, two sides of the pushing seat body 51 are provided with operating wings 53 extending outwards, and the shell 1 is provided with a pushing groove 19 corresponding to the operating wings 53;

a guide wire pushing assembly 8 is arranged through the upper shell 11, the guide wire pushing assembly 8 comprises a guide wire 90, one end of the guide wire 90 is fixed in the middle of the upper shell 11, the guide wire 90 is made of a soft elastic material, and the guide wire 90 penetrates through the needle seat 3, the puncture needle, the anti-puncture assembly 4, the pushing seat 5 and the catheter assembly 6 to be arranged; the guide wire pushing assembly 8 further comprises a guide wire push rod 81, a push rod clamping jaw 82 is arranged at the second end of the guide wire push rod, and the push rod clamping jaw 82 comprises a slide channel 83 matched with the slide rail 16; the outer side of the push rod claw 82 is outwards provided with a slide block 84 matched with the sliding groove 14 and the separation groove 15; go up casing 11 middle part and offer push groove 85, the push rod 81 first end of seal wire is in push groove 85 in-connection direction push pedal, and the direction push pedal is located casing 11 in, and the direction push pedal corresponds the seal wire and arranges, and the direction push pedal is used for propelling movement seal wire 90.

When the guide wire pushing assembly is in the initial state, the sliding block 84 is positioned in the sliding groove 14 of the upper shell 11, and the second ends of the upper shell 11 and the lower shell 12 are in a connection state and hold the catheter and the puncture needle;

When the guide wire pushing assembly is pushed to the final state, the guide pushing plate pushes the guide wire to be pushed out from the inner hole of the needle tip of the puncture needle, the sliding block 84 is located in the separation groove of the upper shell 11, and at the moment, the second ends of the upper shell 11 and the lower shell 12 are in the separation state.

The guide push plate comprises a guide limit plate 86 and a push plate 91, the second end of the guide limit plate 86 is connected with the first end of the guide wire push rod 81 in the push groove 85, an open guide limit groove 88 is downwards arranged on one side of the guide limit plate 86, and a limit block 89 is arranged below the middle part of the guide limit groove; the push plate 91 is connected to direction limiting plate 86 first end, and push plate 91 deviates from the vertical propelling movement strip 93 that is equipped with of seal wire 90 one end.

One end of the push plate 91 close to the guide wire 90 is provided with a guide strip 92, and the guide wire 90 is arranged between the guide strip 92 and the push strip 93.

A fixing block 87 is clamped on the inner wall of the middle part of the upper shell 11, the fixing block 87 is connected with a guide wire 90, a guide wire hole is formed in the middle part of the fixing block 87 and fixedly connected with the guide wire 90, fixing clamping tables 94 are arranged on two sides of the fixing block 87 in an outward extending mode, and the fixing clamping tables 94 are inclined fixing clamping tables 94 with gradually increasing widths from top to bottom;

corresponding to the fixed clamping platform 94, the upper housing 11 is correspondingly provided with two clamping plates 17 arranged side by side, and the two clamping plates 17 correspondingly form a clamping platform groove 18.

The bottom of the guide limit plate is provided with a guide rail 96, the upper part of the fixed block is provided with a guide groove 95 corresponding to the guide rail 96, and the guide rail 96 is matched with the guide groove; the guide grooves may be acoustically provided with guide blocks 97, corresponding to the guide blocks 97, the middle of the guide rail 96 is provided with a guide groove 98, and the guide blocks are arranged in a manner of being matched with the guide groove 98.

A needle-prick prevention assembly 4 is arranged between the needle base 3 and the pushing base 5, a puncture needle penetrates through the needle-prick prevention assembly 4 and is arranged, the needle-prick prevention assembly 4 comprises a needle-prick prevention base 41, a needle-prick prevention elastic sheet 42 is arranged in the needle-prick prevention base 41, a first end of the needle-prick prevention elastic sheet 42 is provided with an elastic sheet base 43, and the elastic sheet base 43 is clamped with the needle-prick prevention base 41; a connecting sheet 44 is obliquely arranged below the elastic sheet seat 43 from bottom to top, the tail end of the connecting sheet 44 is upwards protruded to be provided with a connecting clamping table 45, and the second end of the connecting clamping table 45 is downwards bent to be provided with an anti-acupuncture sheet 46;

the top of the anti-needling seat 41 is provided with an anti-needling slot 47 corresponding to the connecting clamping table 45, the first end of the pushing seat 5 is sleeved with the anti-needling seat 41, the first end of the pushing seat 5 is provided with a connecting clamping slot 52 corresponding to the anti-needling slot 47, and the connecting clamping table 45 extends out of the anti-needling slot 47 to be matched with the connecting clamping slot 52 to clamp the pushing seat 5;

the puncture needle 2 comprises a needle point 21, a flat position 22 is arranged close to the needle point 21, a limiting hole 421 is formed in one end, far away from the connecting clamping table 45, of the elastic sheet seat 43 corresponding to the flat position 22, and the limiting hole 421 is used for limiting the flat position 22. The other end of the spring seat is provided with a through hole 422 corresponding to the limiting hole 421, the flat position 22 can pass through the through hole 422, and the flat position 22 can not pass through the limiting hole 421.

Through holes are formed in two ends of the anti-puncture seat 41, the through holes comprise a first through hole 411 and a second through hole 412, and the puncture needle penetrates through the first through hole 411 and the second through hole 412.

The second end of the connecting clamping table 45 is provided with an anti-needling piece 46 in a downward inclined bending mode, and the bottom of the anti-needling piece 46 is provided with an anti-needling table 48 in an inward bending mode after being bent downward.

The periphery of the second end of the anti-needling seat 41 is provided with a sleeved outer groove 49 which is correspondingly sleeved with the outer groove 49, the first end of the pushing seat 5 is provided with a sleeved inner groove 55, and the sleeved outer groove 49 is matched with the sleeved inner groove 55.

The needle seat 3 comprises a connector 31, a limiting fixing platform 32 and a guide groove 34 which are sequentially arranged, the connector 31 is fixedly connected with the puncture needle, the limiting fixing platform 32 is clamped with the shell in a matching mode, and the guide groove 34 is used for limiting and guiding the guide wire 90.

A positioning sleeve 33 is arranged outside the guide groove 34, and a connecting block 35 is arranged between the positioning sleeve 33 and the guide groove 34; the middle part of the positioning sleeve 33 extends outwards to be matched with the lower shell 12 and is provided with a buckle 36.

The catheter assembly 6 comprises a catheter seat 61, wherein the first end of the catheter seat 61 is tightly connected with the pushing seat 5 through a luer taper joint 54; the second end of the catheter holder 61 is provided with a catheter 62, and the catheter 62 is sleeved outside the puncture needle.

In the initial state of the product, the protective sleeve 7 can be sleeved outside the puncture needle.

Working process or working principle:

step one, the second end of the shell is held by hand, which can also be called as the far end of the shell in medicine, the puncture needle is punctured into the blood vessel of the patient, and the blood passes through the notch at the far end of the puncture needle 2 and overflows to the near end along the space between the puncture needle and the catheter. And step two, pushing the guide wire push rod from the first end to the second end of the pushing groove 19 along the sliding rail of the upper shell, at the moment, converting the clamping jaw of the guide wire push rod into the separation groove of the upper shell from being matched with the sliding groove of the lower shell, and separating the upper shell from the lower shell. In parallel with this operation, the guide wire pusher causes the guide wire to move towards the second end of the housing, so-called distally in medicine, and the guide wire extends from the needle hub.

When the product is used, the guide wire extends out of the puncture needle and enters the blood vessel to guide the insertion of the next catheter, so that the risk of damaging the blood vessel wall by directly inserting the catheter is effectively reduced.

And step three, the first end of the shell is held by one hand, the operation wing of the pushing seat is held by the other hand, the anti-acupuncture component and the catheter component are driven to be pushed to the far end from the initial position, the catheter component moves together with the catheter, the head of the puncture needle retracts into a connecting clamping table and an anti-acupuncture sheet of the anti-acupuncture component, the connecting clamping table correspondingly retracts from the anti-acupuncture groove and the connecting clamping groove, the pushing seat is connected with the anti-acupuncture seat to be failed, the pushing seat is continuously pushed to drive the catheter to enter the blood vessel completely, and the pushing seat is separated from the anti-acupuncture seat.

In the process that the pushing seat pushes towards the near end from the initial position, the needle point position gradually retracts into the connecting clamping table and the anti-acupuncture sheet from the catheter, the catheter seat, the pushing seat and the anti-acupuncture seat, the connecting clamping table resets and retracts from the anti-acupuncture groove and the connecting clamping groove, and the pushing seat and the anti-acupuncture seat are connected and fail.

When the pjncture needle was worn to adorn in preventing the acupuncture subassembly, the deformation took place for preventing the acupuncture shell fragment, and the joint calliper platform takes place deformation card and goes into in preventing acupuncture groove and the draw-in groove, plays the effect of connecting the propelling movement seat and preventing the acupuncture subassembly.

After the needle point of the puncture needle retracts into the anti-acupuncture shell fragment, the anti-acupuncture shell fragment resets, the puncture needle cannot pass through the puncture hole of the anti-acupuncture shell fragment, therefore, the puncture needle cannot withdraw from the anti-acupuncture shell fragment, the needle point is already wrapped by the connecting clamping table and the anti-acupuncture shell fragment, the needle point cannot penetrate out of the anti-acupuncture seat, namely, the needle point can only be positioned inside the anti-acupuncture shell fragment, and therefore the anti-acupuncture effect is achieved.

And step four, retaining the catheter seat, the catheter and the pushing seat, and removing the rest parts.

Step five, the catheter seat and the pushing seat are respectively held by two hands to rotate oppositely, and the catheter seat and the pushing seat are separated; and (5) retaining the guide pipe, removing the pushing seat and finishing the operation.

The description of the directions and the relative position relationship of the structures in the present invention, such as the description of the front, the back, the left, the right, the upper and the lower, does not limit the present invention, and is only for the convenience of description.

Claims

1. An intubation device integrating a catheter, a guide wire and a puncture needle into a whole is characterized by comprising a shell (1), wherein the shell (1) comprises an upper shell (11) and a lower shell (12) which are arranged oppositely and can be separated, a containing cavity (13) is arranged in the upper shell (11) and the lower shell (12), the first ends of the upper shell (11) and the lower shell (12) are connected, the second end of the lower shell (12) is wrapped and extended upwards from the two sides of the upper shell (11) and then is bent inwards to form a sliding groove (14), a sliding rail (16) protruding upwards is arranged above the upper shell (11) corresponding to the sliding groove (14), and the second end of the upper shell (11) is extended outwards from the tail end of the sliding groove (14) to the two sides and then is bent inwards to form a separation groove (15);

a needle seat (3), a pushing seat (5) and a catheter component (6) are sequentially arranged in the accommodating cavity (13) from the first end to the second end; the needle seat (3) is connected with the lower shell (12); the pushing seat (5) is connected with the catheter component (6), a puncture needle is arranged on the needle seat (3), and the puncture needle penetrates through the anti-puncture component (4), the pushing seat (5) and the catheter component (6) to be arranged;

a guide wire pushing assembly (8) penetrates through the upper shell (11), the guide wire pushing assembly (8) comprises a guide wire (90), the guide wire (90) is made of a soft elastic material, and the guide wire (90) penetrates through the needle seat (3), the puncture needle, the anti-puncture assembly (4), the pushing seat (5) and the catheter assembly (6) to be arranged; the guide wire pushing assembly (8) further comprises a guide wire push rod (81), a push rod clamping jaw (82) is arranged at the second end of the guide wire push rod (81), and the push rod clamping jaw (82) comprises a sliding channel (83) matched with the sliding rail (16); a sliding block (84) matched with the sliding groove (14) and the disengaging groove (15) is arranged outwards on the outer side of the push rod clamping jaw (82); go up casing (11) middle part and offer push away groove (85), guide wire push rod (81) first end in push away groove (85) internal connection direction push pedal, the direction push pedal is located in last casing (11), the direction push pedal is used for propelling movement seal wire (90).

2. The integrated catheter, guidewire and introducer needle intubation device according to claim 1, wherein when the guidewire push assembly is in the initial state, the slider (84) is positioned within the slot (14) of the upper housing (11), and the upper housing (11) and the second end of the lower housing (12) are in the connected state and encircle the catheter and the introducer needle;

when the guide wire pushing assembly is pushed to the final state, the guide pushing plate pushes the guide wire to be pushed out from the inner hole of the needle tip of the puncture needle, the sliding block (84) is located in the separation groove (15) of the upper shell (11), and the second end of the upper shell (11) and the second end of the lower shell (12) are in the separation state at the moment.

3. The intubation device integrating the catheter, the guide wire and the puncture needle into a whole according to claim 2, wherein the guide push plate comprises a guide limit plate (86) and a push plate (91), the second end of the guide limit plate (86) is connected with the first end of the guide wire push rod (81) in the push groove (85), an open guide limit groove (88) is formed in one side of the guide limit plate (86) downwards, and a limit block (89) is arranged below the middle part of the guide limit groove; the push plate (91) is connected to direction limiting plate (86) first end, and push plate (91) deviates from seal wire (90) one end and vertically is equipped with propelling movement strip (93).

4. The intubation device integrating the catheter, the guide wire and the puncture needle into one body according to claim 3, wherein a guide strip (92) is arranged at one end of the push plate (91) close to the guide wire (90), and the guide wire (90) is arranged between the guide strip (92) and the push strip (93).

5. The intubation device integrating the catheter, the guide wire and the puncture needle into a whole according to claim 4, wherein a fixed block (87) is clamped on the inner wall of the middle part of the upper shell (11), the fixed block (87) is connected with the guide wire (90), a guide wire hole is formed in the middle part of the fixed block (87), the guide wire hole is fixedly connected with the guide wire (90), fixing clamping tables (94) are arranged on two sides of the fixed block (87) in an outward extending mode, and the fixing clamping tables (94) are arranged to be inclined fixing clamping tables (94) with gradually increasing widths from top to bottom;

the upper shell (11) is correspondingly provided with two clamping plates (17) which are arranged side by side corresponding to the fixed clamping tables (94), and the two clamping plates (17) correspondingly form clamping table grooves (18).

6. The intubation device integrating the catheter, the guide wire and the puncture needle into a whole according to claim 5, wherein a needle-prick prevention assembly (4) is arranged between the needle base (3) and the pushing base (5), the puncture needle penetrates through the needle-prick prevention assembly (4), the needle-prick prevention assembly (4) comprises a needle-prick prevention base (41), a needle-prick prevention elastic sheet (42) is arranged in the needle-prick prevention base (41), an elastic sheet base (43) is arranged at a first end of the needle-prick prevention elastic sheet (42), and the elastic sheet base (43) is clamped with the needle-prick prevention base (41); a connecting sheet (44) is obliquely arranged below the elastic sheet seat (43) from bottom to top, the tail end of the connecting sheet (44) is upwards protruded to be provided with a connecting clamping table (45), and the second end of the connecting clamping table (45) is downwards bent to be provided with an anti-acupuncture sheet (46);

the anti-needling device comprises a connecting card table (45), a needling prevention groove (47) is formed in the top of a needling prevention seat (41), the needling prevention seat (41) is sleeved at the first end of a pushing seat (5), a connecting card slot (52) is formed in the first end of the pushing seat (5) corresponding to the needling prevention groove (47), and the connecting card table (45) extends out of the needling prevention groove (47) to be matched with the connecting card slot (52) to be clamped with the pushing seat (5);

the puncture needle (2) comprises a needle point (21), a flat position (22) is arranged close to the needle point (21), a limiting hole (421) is formed in one end, far away from the connecting clamping table (45), of the elastic sheet seat (43) and corresponds to the flat position (22), and the limiting hole (421) is used for limiting the flat position (22).

7. The intubation device integrating the catheter, the guide wire and the puncture needle into a whole according to claim 6, wherein the second end of the connection clamping table (45) is provided with a needle-prick prevention piece (46) in a downward-inclined bending manner, and the bottom of the needle-prick prevention piece (46) is provided with a needle-prick prevention table (48) in an inward-bent manner after being bent downward.

8. The intubation device integrating the catheter, the guide wire and the puncture needle into a whole according to claim 7, wherein the second end of the puncture prevention base (41) is provided with a sleeved outer groove (49) at the periphery thereof, the sleeved outer groove (49) corresponds to the sleeved outer groove, the first end of the pushing base (5) is provided with a sleeved inner groove (55), and the sleeved outer groove (49) and the sleeved inner groove (55) are matched with each other.

9. The intubation device integrating the catheter, the guide wire and the puncture needle into a whole according to any one of claims 1 to 8, wherein the needle holder (3) comprises a connector (31), a limiting fixing table (32) and a guide groove (34) which are sequentially arranged, the connector (31) is fixedly connected with the puncture needle, the limiting fixing table (32) is matched and clamped with the shell, and the guide groove (34) is used for limiting and guiding the guide wire (90).

10. The integrated catheter, guide wire and puncture needle intubation device according to claim 9, wherein the catheter assembly (6) comprises a catheter hub (61), and a first end of the catheter hub (61) is tightly connected with the push seat (5) through a luer taper connector (54); a catheter (62) is arranged at the second end of the catheter seat (61), and the catheter (62) is sleeved outside the puncture needle;

the pushing seat (5) comprises a pushing seat body (51), operation wings (53) are arranged on two sides of the pushing seat body (51) in an outward extending mode, and a pushing groove (19) is formed in the shell (1) corresponding to the operation wings (53).