CN115553887A

CN115553887A - Venipuncture auxiliary device and method based on ultrasonic guidance

Info

Publication number: CN115553887A
Application number: CN202211297481.8A
Authority: CN
Inventors: 褚芬芬
Original assignee: First Affiliated Hospital of University of South China
Current assignee: First Affiliated Hospital of University of South China
Priority date: 2022-10-22
Filing date: 2022-10-22
Publication date: 2023-01-03

Abstract

The invention discloses a venipuncture auxiliary device and method based on ultrasonic guidance, which comprises the following steps: a housing; the sliding rail is arranged at the top of the casing, and the two sliding strips which are arranged in the sliding rail and can slide are oppositely arranged, and a first supporting frame and a second supporting frame are respectively fixed on the two sliding strips and are used for supporting the casing; the puncture assembly is arranged on the second support frame, the puncture assembly further comprises an installation shaft arranged in the casing, and an adjusting seat which is arranged in the middle of the installation shaft and can rotate; and the ultrasonic probe assembly is arranged at the bottom of the adjusting seat. According to the invention, through the arrangement of the frame body structure and the change of the angle, on one hand, the collapse of the vein vessel during venipuncture under the ultrasonic guidance of a patient is effectively reduced, and meanwhile, in the puncture process, the rapid switching between an out-of-plane method and an in-plane method can be carried out, so that the application range of the puncture needle can be enlarged.

Description

Venipuncture auxiliary device and method based on ultrasonic guidance

Technical Field

The invention relates to the technical field of venipuncture, in particular to a venipuncture auxiliary device and a venipuncture auxiliary method based on ultrasonic guidance.

Background

Ultrasound-guided procedures include vascular procedures, nerve block, pain management, biopsy procedures, interventional therapy, etc., and internal and external puncture techniques are increasingly used as two basic techniques, the in-plane approach: the whole needle inserting path is displayed, the needle point position is accurately positioned, the operation safety is ensured, but the requirement on the manual skill is higher, the limitation of an anatomical structure is easy to occur, once the needle deviates from the sound beam plane, the needle body may be the only visible part, the false image of the needle point position is caused, and the out-of-plane method comprises the following steps: the needle is inserted along the short axis of the probe, and the needle shows a strong echo point, which has the following disadvantages: the operation is simple, the limitation of the anatomical structure is small, the needle inserting path cannot be displayed in the whole process, and the needle body is easily mistaken as the needle point;

the prior patent number 201810197969.0 discloses an ultrasonic-guided venipuncture auxiliary device, which comprises a pasting piece and a drawing piece, wherein the pasting piece is of a hollow structure with a through inner part, the drawing piece is positioned on one side of the pasting piece, a pasting piece is arranged on the pasting piece, and the pasting piece is far away from the drawing piece; the traction piece comprises an annular locking device, and the annular locking device is connected with the adhesive piece through an elastic rope. Compared with the prior art, the vein puncture auxiliary device under the ultrasonic guidance can be tightly attached to the skin of a puncture area under the action of adhesion and elastic traction. The device enables the skin and soft tissues under the ultrasonic probe to be lifted upwards, so that vein collapse is avoided, the development of vein vessels under ultrasonic is improved, the success rate of venipuncture of a patient with poor blood vessel conditions is remarkably improved, and complications caused by multiple punctures are avoided;

however, in the actual application process, the structure is relatively single, the puncture can only be completed in a single state, the flexibility is not high, and the application range is narrow.

Disclosure of Invention

The invention aims to provide a venipuncture auxiliary device and method based on ultrasonic guidance, which effectively reduce the collapse of a vein when a patient is subjected to venipuncture under the ultrasonic guidance through the arrangement of a frame body structure and the change of an angle, and can quickly switch an out-of-plane method and an in-plane method in the puncture process, so that the application range of the venipuncture auxiliary device can be enlarged.

In order to achieve the purpose, the invention provides the following technical scheme: vein puncture auxiliary device based on ultrasonic guidance includes: a housing; the sliding rail is arranged at the top of the casing, and the two sliding strips which are arranged in the sliding rail and can slide are arranged oppositely, and a first supporting frame and a second supporting frame are respectively fixed on the two sliding strips and are used for supporting the casing; the puncture assembly is arranged on the second support frame and is used for quickly puncturing veins; the adjusting device also comprises an installation shaft arranged in the casing and an adjusting seat arranged in the middle of the installation shaft and capable of rotating; and the ultrasonic probe assembly is arranged at the bottom of the adjusting seat and is used for assisting in guiding the venipuncture process.

Preferably, the slide rail is provided with locking bolts in an annular array, and the locking bolts are used for fixing the slide bar inside the slide rail.

Preferably, the ultrasonic probe subassembly is including fixing the connecting seat in adjusting the seat bottom, connecting seat internally mounted has gliding ultrasonic probe from top to bottom, be provided with magnetism repellent's electro-magnet between connecting seat and the ultrasonic probe to and connect the second extension spring between connecting seat and ultrasonic probe.

Preferably, the toggle adjusting mechanism is arranged at the end part of the mounting shaft and used for the inclination adjustment of the ultrasonic probe assembly, the toggle adjusting mechanism comprises an extension sleeve arranged on the mounting shaft, a damper is arranged between the extension sleeve and the mounting shaft, and a first toggle wheel is arranged at the end part of the extension sleeve; the swinging piece is arranged at the end part of the mounting shaft and can rotate, two shifting blocks are arranged at the upper part of the swinging piece, and the two shifting blocks are respectively and rotationally connected with the swinging piece through one-way bearings and used for shifting the rotating direction of the first shifting wheel; the movable frame is sleeved on the extension sleeve, and the handle is arranged on the side wall of the movable frame and used for controlling the shifting direction of the first shifting wheel; the swing mechanism is characterized by further comprising a rotatable second rotary disc arranged on the back face of the sleeve, wherein a swing rod is fixed at one end, close to the swing piece, of the second rotary disc, and a connecting rod connected between the swing rod and the swing piece in a rotating mode.

Preferably, the puncture assembly comprises two mounting frames arranged on the second support frame, movable rod sleeves are arranged in the two mounting frames, and a shifting assembly is arranged between the rod sleeves and used for adjusting the puncture angle; and the fixed frame of setting at stirring the subassembly middle part, fixed frame internally mounted has rotatable gear, slidable rack, two are installed to the both sides of fixed frame the rack meshes with the gear respectively mutually, one of them the tip fixed mounting of rack has the pjncture needle, another the tip fixed mounting of rack touches the clockwork spring.

Preferably, the toggle assembly comprises a rotatable fixing frame arranged on the side wall of the rod sleeve and a second toggle wheel fixed on the side wall of the fixing frame, and the inner wall and the outer wall of the second toggle wheel are respectively provided with an inner tooth socket and an outer tooth socket; still including setting up at installing frame top slidable installation piece, the lateral wall of installation piece is provided with wobbling swing piece through the round pin axle, first voussoir and second voussoir are installed through the round pin axle respectively to the upper portion and the lower part of swing piece, the external tooth flank adaptation at first voussoir and second thumb wheel place, the internal tooth flank adaptation at second voussoir and second thumb wheel place to and connect the first extension spring between first voussoir and second thumb wheel, the top of swing piece is connected with the horizontal bar, is used for the hand push.

Preferably, one of the installing frames is internally provided with a rotatable screw, the screw is in threaded connection with the through hole where the rod sleeve is located, and when the screw rotates, the screw is used for driving the rod sleeve to move in position, and the first rotating disc is arranged at the end part of the first supporting frame and used for manual adjustment.

Preferably, the first graduated scale is arranged on the side wall of the mounting frame, and the starting point end of the first graduated scale is flush with the central axis of the casing and is used for measuring the horizontal position of the puncture assembly; and the first marking block is arranged on the side wall of the rod sleeve and used for pointing to the scale where the first graduated scale is located.

Preferably, the scale further comprises a cross bar which is arranged on the tops of the two mounting frames and can slide, and a second marking block is fixed at one end of the cross bar and used for pointing to the scale where the first graduated scale is located; the telescopic adjusting rod is vertically arranged in the middle of the cross bar, and a pressure sensor is arranged on the telescopic part of the telescopic adjusting rod, which is close to the top, and is used for triggering a puncture signal; and the second graduated scale is fixed on the back of the telescopic adjusting rod, and a third marking block is fixed on the back of the pressure sensor where the telescopic part of the telescopic adjusting rod is located and used for pointing to the scale where the second graduated scale is located.

The vein puncture auxiliary method based on ultrasonic guidance applies the vein puncture auxiliary device based on ultrasonic guidance, and the method comprises the following steps:

s1, the ultrasonic probe assembly is used for supporting a casing through a first supporting frame and a second supporting frame and is in contact with a skin layer;

s2, because the two sliding strips are arranged in the sliding rail in a sliding way and can slide, the two sliding strips are arranged oppositely, when the frame body structure where the first support frame and the second support frame are located is rotated to a certain degree, the puncture assembly is inserted into the plane along the long axis of the probe where the ultrasonic probe assembly is located, the puncture needle is always in the sound beam plane, and the in-plane method puncture process can be carried out;

s3, when the frame body structure where the first support frame and the second support frame are located rotates, the puncture assembly inserts a needle along the short shaft of the probe where the ultrasonic probe assembly is located, and the needle shows a strong echo point, namely, out-of-plane puncture.

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

1. according to the invention, through the arrangement of the frame body structure and the change of the angle, on one hand, the collapse of the vein vessel during venipuncture under the ultrasonic guidance of a patient is effectively reduced, and meanwhile, in the puncture process, the rapid switching between an out-of-plane method and an in-plane method can be carried out, so that the application range of the puncture needle can be enlarged.

2. As another embodiment of the invention, the set toggle adjusting mechanism is applied to the out-of-plane outward puncturing process, after the needle point appears, the probe is tilted while the needle is inserted, the position of the needle point can be tracked in real time, the target is finally reached, the needle inserting path can be displayed in the whole process, and the puncturing efficiency is improved.

3. As other embodiments of the invention, the angle of the puncture needle is adjusted, and the movable rod sleeves are arranged inside the matching mounting frame, namely, in the process of puncturing by an in-plane method, the needle inserting angle can be selected according to the target depth, when the target position is shallow, the needle inserting is carried out at a small angle, and when the target position is deep, the needle inserting is carried out at a large angle, so that the needle inserting accuracy is greatly improved.

Drawings

FIG. 1 is a perspective view of a first perspective of the present invention;

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

FIG. 3 is a perspective view of a third embodiment of the present invention;

FIG. 4 is a perspective view of a fourth embodiment of the present invention;

FIG. 5 is a schematic front view of the present invention;

FIG. 6 is a schematic side view of the present invention;

FIG. 7 is an enlarged view of the toggle adjustment mechanism of the present invention;

FIG. 8 is an enlarged view of the toggle assembly of the present invention;

FIG. 9 is a schematic view of the spike assembly of the present invention shown partially disassembled;

FIG. 10 is a partial structural view of the telescopic adjusting lever of the present invention;

FIG. 11 is a schematic view of the puncture path in example 4 of the present invention.

In the figure: 1. a housing; 2. a first support frame; 3. a slide bar; 4. an adjusting seat; 5. installing a shaft; 6. a movable frame; 7. a first toggle wheel; 8. a swinging member; 9. shifting blocks; 10. a handle; 11. locking the bolt; 12. a second support frame; 13. a connecting seat; 14. an ultrasonic probe; 15. a swing block; 16. a first wedge; 17. a second toggle wheel; 18. a second wedge; 19. a fixed mount; 20. a handle is pushed; 21. installing a frame; 22. a first scale; 23. a first marker block; 24. a screw; 25. a rod sleeve; 26. mounting blocks; 27. a rack; 28. a horizontal bar; 29. touching the clockwork spring; 30. a second scale; 31. a second marker block; 32. a first turntable; 33. a telescopic adjusting rod; 34. a first tension spring; 35. a slide rail; 36. puncturing needle; 37. a pressure sensor; 38. a second turntable; 39. a swing rod; 40. a connecting rod; 41. a gear; 42. a fixing frame; 43. a third marker block; 44. an extension sleeve; 45. and marking a block.

Detailed Description

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1:

referring to fig. 1 to 11, the present invention provides a technical solution: vein puncture auxiliary device based on ultrasonic guidance includes: a casing 1; the sliding rail device comprises a sliding rail 35 arranged at the top of the casing 1 and two sliding strips 3 which are arranged in the sliding rail 35 and can slide, wherein the two sliding strips 3 are arranged oppositely, and a first supporting frame 2 and a second supporting frame 12 are respectively fixed on the two sliding strips 3 and are used for supporting the casing 1; and a puncture assembly arranged on the second support frame 12 for rapid puncture of the vein; the device also comprises an installation shaft 5 arranged in the shell 1 and a rotatable adjusting seat 4 arranged in the middle of the installation shaft 5; and the ultrasonic probe assembly is arranged at the bottom of the adjusting seat 4 and is used for auxiliary guidance of the venipuncture process.

Through the first support frame 2 and the second support frame 12 which are arranged, the venous blood vessel puncture needle is used for supporting the casing 1, the ultrasonic probe assembly is in contact with a skin layer, the structural design of the ultrasonic probe assembly is matched, the venous blood vessel collapse during venous puncture under the ultrasonic guidance of a patient is effectively reduced, as shown in figures 1 to 3, at the moment, the puncture assembly is inserted along the short axis of the probe where the ultrasonic probe assembly is located, the needle shows a strong echo point, namely, the venous puncture needle is used for out-of-plane puncture, as the two sliding strips 3 which can slide in the sliding rail 35 are arranged, the two sliding strips 3 are arranged oppositely, when the puncture needle needs to be switched into in-plane puncture, when the frame structure where the first support frame 2 and the second support frame 12 are located is rotated to 90 degrees, the puncture assembly is inserted along the long axis of the probe where the ultrasonic probe assembly is located on the plane, the puncture needle is always in the sound beam plane, the in-plane puncture process can be carried out-of-plane puncture, and the use range can be increased through the arrangement and angle change of the frame structure.

Further, an annular array of locking bolts 11 is provided on the slide rail 35 for fixing the slide bar 3 inside the slide rail 35.

As shown in fig. 1, the number of the locking bolts 11 is four, and the two locking bolts are arranged at 90 degrees, and a screw hole matched with the locking bolt 11 is arranged in the middle of the corresponding sliding strip 3, that is, when the sliding strip 3 rotates, when the locking bolt 11 is overlapped with the screw hole in the middle of the sliding strip 3, the second support frame 12 can be deflected by 90 degrees, that is, the puncture is switched from the out-of-plane normal to the in-plane normal.

Furthermore, ultrasonic probe subassembly is including fixing at the connecting seat 13 of adjusting 4 bottoms, and connecting seat 13 internally mounted has gliding ultrasonic probe 14 from top to bottom, is provided with the electro-magnet that magnetism repels between connecting seat 13 and ultrasonic probe 14 to and connect the second extension spring between connecting seat 13 and ultrasonic probe 14.

Through the structural arrangement of ultrasonic probe subassembly, as shown in figure 1, owing to be provided with the electro-magnet that magnetism is repulsive between connecting seat 13 and ultrasonic probe 14 to and connect the second extension spring between connecting seat 13 and ultrasonic probe 14, when changing the electric current size in the conductor, can change the magnetism size of electro-magnet, thereby changed the repulsion size between the magnetism, thereby adjustable ultrasonic probe 14 and the contact degree between the patient's skin, thereby the vein's of having reduced the patient's supersound guide when vein puncture collapse.

Example 2:

as another embodiment of the present invention, a toggle adjusting mechanism disposed at the end of the mounting shaft 5 is used for tilt adjustment of the ultrasonic probe assembly, the toggle adjusting mechanism includes an extension sleeve 44 disposed on the mounting shaft 5, a damper disposed between the extension sleeve 44 and the mounting shaft 5, and a first toggle wheel 7 disposed at the end of the extension sleeve 44; the swinging piece 8 is arranged at the end part of the mounting shaft 5 and can rotate, two shifting blocks 9 are arranged at the upper part of the swinging piece 8, and the two shifting blocks 9 are respectively and rotatably connected with the swinging piece 8 through one-way bearings and are used for shifting the rotating direction of the first shifting wheel 7; the movable frame 6 is sleeved on the extension sleeve 44, and the handle 10 is arranged on the side wall of the movable frame 6 and is used for controlling the shifting direction of the first shifting wheel 7; the mechanism further comprises a rotatable second rotating disc 38 arranged on the back surface of the shell 1, wherein a swinging rod 39 is fixed at one end of the second rotating disc 38 close to the swinging piece 8, and a connecting rod 40 rotatably connected between the swinging rod 39 and the swinging piece 8.

Through the arranged toggle adjusting mechanism, as shown in fig. 1, 4 and 7, in this state, the movable frame 6 is located at one side of the first toggle wheel 7, the toggle block 9 corresponding to the position of the movable frame 6 slides on the arc-shaped contour of the movable frame 6 at this time, when the swinging piece 8 swings, the toggle block 9 intermittently contacts with the first toggle wheel 7, namely, when the swinging piece 8 drives the toggle block 9 to deflect downwards, the toggle block 9 is abutted to the groove where the first toggle wheel 7 is located at this time, so that the first toggle wheel 7 can be pushed to toggle anticlockwise, when the swinging piece 8 drives the toggle block 9 to deflect upwards, the toggle block 9 rotates, the first toggle wheel 7 keeps static, the rotation of the first toggle wheel 7 can further drive the extension sleeve 44 and the adjusting seat 4 on the extension sleeve to move, so that the probe where the ultrasonic probe assembly is located is adjusted in an inclined manner, in the in-plane puncture process, the probe is inclined while the needle point occurs, the position of the needle point can be tracked in real time, the target can be finally reached, the needle feeding path can be displayed in the whole puncture efficiency can be improved.

Example 3:

as other embodiments of the present invention, the puncturing assembly comprises two mounting frames 21 disposed on the second supporting frame 12, a movable rod sleeve 25 disposed inside each of the two mounting frames 21, and a toggle assembly disposed between the rod sleeves 25 for adjusting the puncturing angle; and a fixed frame 42 arranged in the middle of the toggle assembly, wherein a rotatable gear 41 is arranged in the fixed frame 42, two slidable racks 27 are arranged on two sides of the fixed frame 42, the two racks 27 are respectively meshed with the gear 41, a puncture needle 36 is fixedly arranged at the end part of one rack 27, and a touch spring 29 is fixedly arranged at the end part of the other rack 27.

As shown in fig. 1, 2, 3, 4 and 9, because the rotatable gear 41 is installed inside the fixed frame 42, and the slidable racks 27 are installed on both sides of the fixed frame 42, two racks 27 are respectively engaged with the gear 41, when pulling and touching the spiral spring 29, the rapid puncture needle 36 can be realized, the traditional needle insertion mode is changed, the needle insertion efficiency is improved, meanwhile, due to the further arrangement of the toggle assembly, the angle of the puncture needle 36 can be adjusted, the movable rod sleeve 25 is arranged inside the matching installation frame 21, namely, in the plane internal method puncture process, the needle insertion angle (namely, the included angle between the needle and the skin) can be selected according to the target depth, when the target position is shallow, the needle insertion is performed at a small angle, when the target position is deep, the needle insertion is performed at a large angle, and therefore, the needle insertion accuracy is greatly improved.

Further, the toggle assembly comprises a rotatable fixed frame 19 arranged on the side wall of the rod sleeve 25 and a second toggle wheel 17 fixed on the side wall of the fixed frame 19, and an inner tooth socket and an outer tooth socket are respectively arranged on the inner wall and the outer wall of the second toggle wheel 17; the hand-push type hand-push device is characterized by further comprising a slidable mounting block 26 arranged at the top of the mounting frame 21, the side wall of the mounting block 26 is provided with a swinging block 15 capable of swinging through a pin shaft, the upper portion and the lower portion of the swinging block 15 are respectively provided with a first wedge block 16 and a second wedge block 18 through pin shafts, the first wedge block 16 is matched with an outer tooth groove where the second poking wheel 17 is located, the second wedge block 18 is matched with an inner tooth groove where the second poking wheel 17 is located, and a first tension spring 34 connected between the first wedge block 16 and the second poking wheel 17 is connected, and the top of the swinging block 15 is connected with a cross bar 28 for hand pushing.

Through the arrangement of the toggle assembly structure, as shown in fig. 1 and 8, when the handle 20 is held by a hand to drive the swing block 15 to toggle back and forth, due to the first wedge 16 and the second wedge 18 mounted on the swing block 15, the external tooth grooves where the first wedge 16 and the second toggle wheel 17 are located, the internal tooth grooves where the second wedge 18 and the second toggle wheel 17 are located, and the first tension spring 34 connected between the first wedge 16 and the second toggle wheel 17, when the swing block 15 swings back and forth, under the action of the first wedge 16 and the second wedge 18, intermittent toggling of the second toggle wheel 17 can be realized, so that the pitch angle of the puncture needle 36 changes.

Example 4:

as another embodiment of the present invention, as shown in fig. 1 to 5, with reference to fig. 11, an isosceles right triangle structure is utilized to adjust an ultrasonic probe assembly, so that a probe of the ultrasonic probe assembly is perpendicular to a skin surface, in this state, a depth D of a target is measured, a sum of the depth D and a length of an ultrasonic probe 14 is L, and a distance between a center of a puncture assembly and a center of the probe is s, i.e., L is equal to s, at this time, a pitch angle of the puncture assembly is further adjusted to enable the puncture assembly to be inserted at 45 degrees, when an end of a touch 29 contacts with a pressure sensor 37 of a telescopic adjusting rod 33, a spring of the pressure sensor 37 is pressed, a signal is transmitted to a single chip microcomputer, and the single chip microcomputer makes a corresponding prompt, and when a needle point appears, the needle point is just located in a target a, so that puncture is greatly ensured, and has a strong popularization significance.

Further, a rotatable screw 24 is installed inside one of the mounting frames 21, the screw 24 is in threaded connection with the through hole where the rod sleeve 25 is located, and when the screw 24 rotates, the screw is used for driving the rod sleeve 25 to move in position, and a first rotating disc 32 is arranged at the end of the first support frame 2 and is used for manual adjustment.

As shown in figure 1, due to the fact that the rod sleeve 25 slides in the mounting frame 21 in a limiting mode and the rod sleeve 25 is in threaded connection with the screw 24, when the first rotary disc 32 rotates to work, the rod sleeve 25 can be driven to slide in the mounting frame 21 in a limiting mode, the position of the puncture assembly can be moved, and the distance s between the center of the puncture assembly and the center of the probe can be accurately adjusted.

Further, a first graduated scale 22 is arranged on the side wall of the mounting frame 21, and the starting point end of the first graduated scale 22 is flush with the central axis of the casing 1 and is used for measuring the horizontal position of the puncture assembly; and a first mark block 23 provided on a sidewall of the rod cover 25 for pointing to a scale on which the first scale 22 is located.

Because the starting point end of the first graduated scale 22 is flush with the central axis of the sleeve 1, and the first mark block 23 arranged on the side wall of the rod sleeve 25 is used for pointing to the scale where the first graduated scale 22 is located, when the horizontal position of the puncture assembly moves, the distance s between the center of the puncture assembly and the center of the probe can be intuitively obtained.

Further, the scale further comprises a cross bar 28 which is arranged on the tops of the two mounting frames 21 and can slide, and a second marking block 31 is fixed at one end of the cross bar 28 and used for pointing to the scale where the first graduated scale 22 is located; a telescopic adjusting rod 33 vertically arranged in the middle of the cross bar 28, wherein a pressure sensor 37 is arranged on the telescopic part of the telescopic adjusting rod 33 close to the top part and is used for triggering a puncture signal; and a second scale 30 fixed on the back of the telescopic adjusting rod 33, wherein a third marking block 43 is fixed on the back of the pressure sensor 37 where the telescopic part of the telescopic adjusting rod 33 is located and used for pointing to the scale where the second scale 30 is located.

As shown in fig. 11, after the initial length of the telescopic adjusting rod 33 is equal to the length of the ultrasonic probe 14 by the telescopic adjusting rod 33, that is, the depth D of the measurement target is obtained, the corresponding length D of the telescopic adjusting rod 33 can be extended, and D is equal to D, as shown in fig. 10, a third marking block 43 is fixed on the back of the pressure sensor 37 where the telescopic part of the telescopic adjusting rod 33 is located, and is used for pointing to the scale where the second scale 30 is located, so that the length of L can be measured, when the distance s between the center of the puncture assembly and the center of the probe is adjusted, s is further made equal to L, two congruent isosceles right triangles can be formed, that is, when the puncture needle 36 is advanced at 45 degrees, the touch spring 29 is further moved to the pressure sensor 37 where the telescopic adjusting rod 33 is located, and when the end of the touch spring 29 is in contact with the pressure sensor 37, the pressure sensor 37 is pressed, so that a puncture signal can be triggered.

Example 5:

the vein puncture auxiliary method based on ultrasonic guidance is applied to the vein puncture auxiliary device based on ultrasonic guidance, and the method comprises the following steps:

s1, the shell 1 is supported through a first support frame 2 and a second support frame 12, and the ultrasonic probe assembly is in contact with a skin layer;

s2, as the two sliding strips 3 which can slide in the sliding rail 35 are arranged oppositely, when the frame body structure where the first support frame 2 and the second support frame 12 are located is rotated to 90 degrees, the puncture assembly is inserted into the plane along the long axis of the probe where the ultrasonic probe assembly is located, the puncture needle is always in the sound beam plane, and the in-plane method puncture process can be carried out;

s3, when the frame body structure where the first support frame 2 and the second support frame 12 are located rotates 90 degrees, the puncture assembly inserts a needle along the short axis of the probe where the ultrasonic probe assembly is located, and the needle shows a strong echo point, namely, out-of-plane normal puncture.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The detachable installation mode has various modes, for example, a mode of matching with a buckle through plugging, for example, a mode of connecting through a bolt, and the like.

The conception, the specific structure and the technical effects of the present invention are clearly and completely described above in connection with the embodiments and the accompanying drawings, so that the objects, the features and the effects of the present invention can be fully understood. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts are within the protection scope of the present invention based on the embodiments of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliaries according to specific implementation conditions.

The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.

Claims

1. Vein puncture auxiliary device based on supersound guide, its characterized in that: the method comprises the following steps:

a casing (1);

the sliding rail (35) is arranged at the top of the casing (1), the two sliding strips (3) which can slide in the sliding rail (35) are arranged oppositely, and the first support frame (2) and the second support frame (12) are respectively fixed on the two sliding strips (3) and are used for supporting the casing (1);

and a puncture assembly arranged on the second support frame (12) and used for the rapid puncture of veins;

the device also comprises an installation shaft (5) arranged in the shell (1) and a rotatable adjusting seat (4) arranged in the middle of the installation shaft (5);

the ultrasonic probe component is arranged at the bottom of the adjusting seat (4) and is used for auxiliary guidance of the venipuncture process.

2. The ultrasound-guided venipuncture assistance device of claim 1 wherein: and the sliding rail (35) is provided with locking bolts (11) in an annular array, and the locking bolts are used for fixing the sliding strip (3) in the sliding rail (35).

3. The ultrasound-guided venipuncture assistance device of claim 1 wherein: the ultrasonic probe subassembly is including fixing connecting seat (13) in adjusting seat (4) bottom, connecting seat (13) internally mounted has gliding ultrasonic probe (14) from top to bottom, be provided with the electro-magnet that magnetism repels between connecting seat (13) and ultrasonic probe (14) to and connect the second extension spring between connecting seat (13) and ultrasonic probe (14).

4. The ultrasound-guided venipuncture assisting device of claim 1, wherein: the stirring adjusting mechanism is arranged at the end part of the installation shaft (5) and used for the inclination adjustment of the ultrasonic probe assembly, and comprises an extension sleeve (44) arranged on the installation shaft (5), a damper is arranged between the extension sleeve (44) and the installation shaft (5), and a first stirring wheel (7) arranged at the end part of the extension sleeve (44);

the rotatable swing piece (8) is arranged at the end part of the mounting shaft (5), two shifting blocks (9) are arranged at the upper part of the swing piece (8), and the two shifting blocks (9) are rotatably connected with the swing piece (8) through one-way bearings respectively and are used for shifting the rotation direction of the first shifting wheel (7);

the movable frame (6) is sleeved on the extension sleeve (44), and the handle (10) is arranged on the side wall of the movable frame (6) and used for controlling the shifting direction of the first shifting wheel (7);

the mechanism is characterized by further comprising a rotatable second rotary disc (38) arranged on the back face of the shell (1), wherein a swing rod (39) is fixed at one end, close to the swinging piece (8), of the second rotary disc (38), and a connecting rod (40) is rotatably connected between the swing rod (39) and the swinging piece (8).

5. The ultrasound-guided venipuncture assistance device of claim 1 wherein: the puncture assembly comprises two mounting frames (21) arranged on the second support frame (12), movable rod sleeves (25) are arranged in the two mounting frames (21), and a poking assembly is arranged between the rod sleeves (25) and used for adjusting a puncture angle;

and set up fixed frame (42) at stirring the subassembly middle part, fixed frame (42) internally mounted has rotatable gear (41), slidable rack (27) are installed to the both sides of fixed frame (42), two rack (27) mesh with gear (41) respectively mutually, one of them the tip fixed mounting of rack (27) has pjncture needle (36), another the tip fixed mounting of rack (27) has touch clockwork spring (29).

6. The ultrasound-guided venipuncture assisting device of claim 5, wherein: the poking assembly comprises a rotatable fixing frame (19) arranged on the side wall of the rod sleeve (25) and a second poking wheel (17) fixed on the side wall of the fixing frame (19), and the inner wall and the outer wall of the second poking wheel (17) are respectively provided with an inner tooth groove and an outer tooth groove;

still including setting up at installing frame (21) top slidable installation piece (26), the lateral wall of installation piece (26) is provided with wobbling swing piece (15) through the round pin axle, first voussoir (16) and second voussoir (18) are installed through the round pin axle respectively to the upper portion and the lower part of swing piece (15), first voussoir (16) and the external tooth socket looks adaptation at second thumb wheel (17) place, second voussoir (18) and the internal tooth socket looks adaptation at second thumb wheel (17) place to and connect first extension spring (34) between first voussoir (16) and second thumb wheel (17), the top of swing piece (15) is connected with horizontal bar (28) for the hand push.

7. The ultrasound-guided venipuncture assisting device of claim 5, wherein: one of them install rotatable screw rod (24) in installing frame (21), screw rod (24) and the through-hole threaded connection at rod cover (25) place for when screw rod (24) rotate, be used for driving rod cover (25) position and remove to and set up first carousel (32) at first support frame (2) tip, be used for manual regulation.

8. The ultrasound-guided venipuncture assisting device of claim 5, wherein: the first graduated scale (22) is arranged on the side wall of the mounting frame (21), and the starting point end of the first graduated scale (22) is flush with the central axis of the casing (1) and is used for measuring the horizontal position of the puncture assembly;

and a first marking block (23) arranged on the side wall of the rod sleeve (25) and used for pointing to the scale on which the first graduated scale (22) is positioned.

9. The ultrasound-guided venipuncture assistance device of claim 5 wherein: the scale is characterized by further comprising a cross bar (28) which is arranged on the tops of the two mounting frames (21) in a sliding manner, wherein a second marking block (31) is fixed at one end of the cross bar (28) and used for pointing to a scale where the first graduated scale (22) is located;

a telescopic adjusting rod (33) vertically arranged in the middle of the cross bar (28), wherein a pressure sensor (37) is arranged on a telescopic part of the telescopic adjusting rod (33) close to the top part and used for triggering a puncture signal;

and the second graduated scale (30) is fixed on the back of the telescopic adjusting rod (33), and a third marking block (43) is fixed on the back of the pressure sensor (37) where the telescopic part of the telescopic adjusting rod (33) is located and used for pointing to the scale where the second graduated scale (30) is located.

10. The vein puncture auxiliary method based on ultrasonic guidance is characterized in that: use of the ultrasound-guided venipuncture assistance device of claim 1, said method comprising the steps of:

s1, the ultrasonic probe assembly is used for supporting the casing (1) through a first supporting frame (2) and a second supporting frame (12) and is in contact with the skin layer;

s2, because the two sliding strips (3) which can slide are arranged in the sliding rail (35), the two sliding strips (3) are arranged oppositely, when the frame body structure where the first supporting frame (2) and the second supporting frame (12) are arranged is rotated to 90 degrees, the puncture assembly is inserted into the plane along the long axis of the probe where the ultrasonic probe assembly is arranged, the puncture needle is always in the sound beam plane, and the in-plane normal puncture process can be carried out;

s3, when the frame body structure where the first support frame (2) and the second support frame (12) are located rotates 90 degrees, the puncture assembly inserts the needle along the short axis of the probe where the ultrasonic probe assembly is located, and the needle shows a strong echo point, namely, out-of-plane puncture.