CN214074558U - Needle cylinder auxiliary fitting - Google Patents

Abstract

A syringe auxiliary accessory is used for detachably mounting a high-pressure injection syringe on a high-pressure contrast injector and comprises a fixed seat and a casing; the fixed seat is arranged on the high-pressure radiography injector, a fixed groove used for installing the high-pressure injection syringe is arranged in the fixed seat, and a stop block is arranged at a notch groove of the fixed seat; a sleeve cavity with an outward opening is arranged in the sleeve shell, and the sleeve shell is sleeved at one end of the high-pressure injection needle cylinder through the sleeve cavity; a clamping block is arranged at the opening of the sleeve cavity, the clamping block can extend into the sleeve cavity, and the clamping block can be abutted against the clamping block by rotating the sleeve shell so as to connect and fix the sleeve shell and the fixed seat; when the high-pressure injection syringe needs to be taken down, the sleeve shell is rotated reversely, so that the clamping block is separated from the stop block; therefore, the syringe auxiliary fitting facilitates the disassembly and the assembly of the high-pressure injection syringe and shortens the disassembly and assembly time.

Description

Needle cylinder auxiliary fitting

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a needle cylinder auxiliary fitting.

Background

High-pressure contrast injectors are commonly used as an aid in X-ray machines, CT, MRI or other medical devices. The high-pressure contrast injector can ensure that the contrast agent is injected into the cardiovascular of a patient in a concentrated way in a short time, and the examined part is filled with high concentration, so as to take a better image of the liquid medicine.

The high-pressure contrast injection machine needs to use a special high-pressure injection syringe for injection, and when the high-pressure contrast injection machine is used, a push rod of the high-pressure contrast injection machine is connected with a piston of the high-pressure injection syringe, and then the push rod pushes the piston in the injection syringe to inject liquid medicine.

However, since the syringe is generally disposable, the syringe body needs to be removed from the high-pressure contrast injector and replaced with a new high-pressure syringe after use; in the prior art, a needle cylinder is generally fixed by a clamping mechanism of a high-pressure radiography injector, so that on one hand, the disassembly is troublesome, and on the other hand, long time is consumed for replacing the high-pressure injection needle cylinder, which is very inconvenient; on the other hand, since the gripping mechanism directly grips the barrel of the high-pressure injection syringe, the high-pressure injection syringe may be worn and broken.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the problems, the utility model provides a needle cylinder auxiliary fitting, which solves the problems mentioned in the background technology.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme:

a syringe auxiliary accessory is used for detachably mounting a high-pressure injection syringe on a high-pressure contrast injector and comprises a fixed seat and a casing; the fixed seat is arranged on the high-pressure radiography injector, a fixed groove used for installing the high-pressure injection syringe is arranged in the fixed seat, and a stop block is arranged at a notch groove of the fixed seat; a sleeve cavity with an outward opening is arranged in the sleeve shell, and the sleeve shell is sleeved at one end of the high-pressure injection needle cylinder through the sleeve cavity; the opening of the sleeve cavity is provided with a clamping block, the clamping block can extend into the sleeve cavity, and the clamping block can be abutted against the clamping block by rotating the sleeve shell, so that the sleeve shell is fixedly connected with the fixed seat.

Preferably, high pressure injection cylinder rotationally installs in the fixed slot, just high pressure injection cylinder with the one end that the cover shell is connected is equipped with prevents changeing the piece, be equipped with on the cover shell can with prevent changeing the anti-rotating groove of piece joint, in order to avoid the cover shell for high pressure injection cylinder rotates.

Preferably, the number of the stop blocks is multiple, and the stop blocks are designed at intervals; the clamping blocks are also provided with a plurality of clamping blocks, the clamping blocks are spaced from each other pairwise to form a plurality of clamping grooves communicated with the sleeve cavity, the plurality of stopping blocks can correspondingly penetrate through the clamping grooves and extend into the sleeve cavity, and the plurality of clamping blocks can be abutted against the plurality of stopping blocks by rotating the sleeve shell.

Preferably, the casing is designed in a circular shape, a first positioning mark and a second positioning mark are arranged on the outer side of the circumference of the casing, the first positioning mark is designed corresponding to the clamping groove, and the second positioning mark is designed corresponding to the clamping block; the fixed seat is provided with an indicator, and the first locator and the second locator can be aligned with the indicator respectively by rotating the casing.

Preferably, the sliding device further comprises a sliding column, a limiting raised head is arranged at the first end of the sliding column, a sliding groove is arranged on the fixed seat, and a through hole communicated with the outside is formed in the first side of the sliding groove; the fixture block corresponding to the second positioning mark is provided with a limiting hole, the sliding column can be slidably arranged in the sliding groove, and the limiting raised head can protrude out of the through hole along with the sliding of the sliding column and is clamped with the limiting hole.

Preferably, the fixed seat is further provided with a shifting groove communicated with the sliding groove and the outside, and the sliding column is provided with a shifting block penetrating through the shifting groove to the outside.

Preferably, the sliding column further comprises a return spring, the return spring is installed in the sliding groove, one end of the return spring abuts against the second end of the sliding column, and the other end of the return spring abuts against the second side of the sliding groove.

Preferably, the fixing seat is further provided with a lifting opening communicated with the fixing groove.

Preferably, the dustproof syringe further comprises a dustproof sleeve, the dustproof sleeve is detachably mounted on the needle head of the high-pressure injection syringe, a placing hole is formed in the casing, and the dustproof sleeve is detachably connected with the placing hole.

Preferably, a threaded barrel is arranged inside the dustproof sleeve, and the dustproof sleeve is in threaded connection with the needle head of the high-pressure injection needle barrel through the threaded barrel; the dustproof sleeve outside is equipped with the screw thread, just the dustproof sleeve passes through the screw thread in the dustproof sleeve outside with place hole threaded connection.

(III) advantageous effects

The utility model provides a syringe auxiliary fitting, which is used for placing a high-pressure injection syringe on a high-pressure radiography injector by designing a fixed seat; the casing is sleeved on the high-pressure injection needle cylinder, so that the high-pressure injection needle cylinder can be fixed through the fixed casing, and compared with the traditional fixing mode, the fixing mode can avoid the damage of the high-pressure injection needle cylinder caused by extrusion, and the safety is improved; in addition, because the cover shell is internally provided with the cover cavity and the fixture block, the corresponding stop block is arranged on the fixing seat, the cover shell and the fixing seat can be relatively fixed by rotating the cover shell to enable the fixture block to be abutted against the stop block, and the fixing mode is convenient to detach and install, so that the time is saved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 shows a schematic view of the usage state of the present invention;

fig. 2 shows a part of the structure diagram of the invention;

fig. 3 shows a schematic diagram of a part of the structure of the present invention;

FIG. 4 shows a top view of FIG. 3;

FIG. 5 shows a cross-sectional view A-A of FIG. 4;

FIG. 6 shows an exploded view of FIG. 3;

FIG. 7 is a schematic view of the connection of the high pressure syringe and the housing of the present invention;

fig. 8 shows a first structural schematic diagram of the fixing seat and the casing in the present invention;

fig. 9 shows a second schematic structural view of the fixing seat and the casing in the present invention;

fig. 10 shows a schematic structural view of a casing according to the present invention;

fig. 11 shows a schematic structural diagram of the fixing base in the present invention;

FIG. 12 shows a cross-sectional view B-B of FIG. 11;

fig. 13 shows a first structural diagram of the sleeve according to the present invention;

fig. 14 shows a schematic structural diagram ii of the sleeve according to the present invention.

In the figure: 1 high-pressure syringe, 1f prevent changeing the piece, 2 high-pressure radiography injection machine, 3 fixing base, 30 fixed slot, 30a start-up mouth, 3k dog, 3H sliding tray, 3H0 through-hole, 3H1 stir the groove, 4 covers shell, 40 cover cavities, 401 draw-in groove, 4f prevent changeing the groove, 4k fixture block, 4k0 spacing hole, 4C place the hole, C dust sleeve, C0 thread cylinder, H slip post, H0 spacing plush copper, H1 stir the piece, T reset spring, Z1 first index, Z2 second index, Z3 index.

Detailed Description

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. 1-10, a syringe accessory for detachably mounting a high pressure syringe 1 to a high pressure contrast injector 2 includes a holder 3 and a housing 4; the fixed seat 3 is arranged on the high-pressure radiography injector 2, a fixed groove 30 for installing the high-pressure injection syringe 1 is arranged in the fixed seat 3, and a stop block 3k is arranged at a notch groove of the fixed groove 30 of the fixed seat 3; a sleeve cavity 40 with an outward opening is arranged inside the sleeve 4, and the sleeve 4 is sleeved at one end of the high-pressure injection syringe 1 through the sleeve cavity 40; the opening of the sleeve cavity 40 is provided with a block 4k, the block 3k can extend into the sleeve cavity 40, and the block 4k can be abutted against the block 3k by rotating the sleeve 4, so that the sleeve 4 is fixedly connected with the fixing seat 3.

Specifically, when a user needs to install the high-pressure injection syringe 1 on the high-pressure radiography injector 2, the casing 4 is firstly sleeved at one end of the high-pressure injection syringe 1, which is provided with the needle, then the high-pressure injection syringe 1 is integrally placed into the fixing groove 30, the high-pressure injection syringe 1 is continuously pushed along the length direction of the fixing groove 30, so that the stop block 3k on the fixing seat 3 extends into the casing cavity 40, at the moment, the casing 4 is rotated forwards to enable the stop block 4k to be abutted against the stop block 3k, the casing 4 and the fixing seat 3 can be connected and fixed, and the high-pressure injection syringe 1 is further fixed on the high-pressure radiography injector; similarly, when the high-pressure syringe 1 needs to be taken down from the high-pressure contrast injector 2, the casing 4 is rotated in the reverse direction, so that the block 4k is separated from the block 3k, and then the high-pressure syringe 1 is pushed out from the fixing groove 30.

In summary, compared with the conventional fixing method, the fixing base 3 of the present invention is designed to place the high-pressure injection syringe 1 on the high-pressure radiography injector 2, and the casing 4 is sleeved on the high-pressure injection syringe 1, so that the high-pressure injection syringe 1 can be fixed by fixing the casing 4, and the fixing method can prevent the barrel of the high-pressure injection syringe 1 from being damaged due to extrusion, thereby improving the safety; in addition, because the inside cover chamber 40 and the fixture block 4k that is equipped with of cover 4, then be equipped with corresponding dog 3k on the fixing base 3, make fixture block 4k and dog 3k offset and can make cover 4 and fixing base 3 relatively fixed through rotating cover 4, this kind of fixed mode convenient to detach and installation save time.

Further, because high pressure injection cylinder 1 during operation, probably lead to fixture block 4k to break away from dog 3k because of cover shell 4 rotates, in order to solve this problem, the utility model discloses in, high pressure injection cylinder 1 rotationally installs in fixed slot 30, and the one end that high pressure injection cylinder 1 and cover shell 4 are connected is equipped with prevents changeing piece 1f, be equipped with on cover shell 4 can with prevent changeing the anti-rotating groove 4f of piece 1f joint, when cover shell 4 suit is on high pressure injection cylinder 1, prevent changeing piece 1f and prevent changeing groove 4f joint to avoid cover shell 4 to rotate for high pressure injection cylinder 1.

Referring to fig. 6-10, a plurality of stoppers 3k are provided, and the plurality of stoppers 3k are arranged at intervals; the plurality of clamping blocks 4k are also arranged, the plurality of clamping blocks 4k are spaced from each other to form a plurality of clamping grooves 401 communicated with the sleeve cavity 40, the plurality of stopping blocks 3k can correspondingly penetrate through the plurality of clamping grooves 401 and extend into the sleeve cavity 40, and the plurality of clamping blocks 4k can be abutted against the plurality of stopping blocks 3k by rotating the sleeve shell 4; the design of the plurality of stoppers 3k and the plurality of clamping blocks 4k can ensure that the connection between the sleeve 4 and the fixed seat 3 is more stable.

Referring to fig. 6-10, the housing 4 is designed in a circular shape, and the first positioning mark Z1 and the second positioning mark Z2 are disposed on the outer side of the circumference of the housing 4, the first positioning mark Z1 is designed corresponding to the slot 401, and the second positioning mark Z2 is designed corresponding to the clip 4 k; the fixed seat 3 is provided with an indicator Z3, and the first indicator Z1 and the second indicator Z2 can be respectively aligned with the indicator Z3 by rotating the sleeve 4.

Specifically, when the first positioning indicator Z1 is aligned with the indicator Z3, the stopper 3k on the fixing base 3 corresponds to the slot 401 on the casing 4, and at this time, the user can rotate the casing 4 until the second positioning indicator Z2 is aligned with the indicator Z3, and the stopper 3k on the fixing base 3 abuts against the stopper 4k on the casing 4; the first index Z1, the second index Z2 and the indicator Z3 are designed to indicate to the user the current status of the jacket 4, which is convenient for the user to mount and dismount the high pressure syringe 1.

Referring to fig. 8 to 12, the sliding device further includes a sliding column H, a first end of the sliding column H is provided with a limiting protruding head H0, the fixing base 3 is provided with a sliding groove 3H, and a first side of the sliding groove 3H is provided with a through hole 3H0 communicated with the outside; the fixture block 4k corresponding to the second positioning mark Z2 is provided with a limiting hole 4k0, the sliding column H is slidably arranged in the sliding groove 3H, and the limiting raised head H0 can protrude out of the through hole 3H0 along with the sliding of the sliding column H and is clamped with the limiting hole 4k 0. In order to move the sliding column H, the fixed seat 3 is further provided with a toggle groove 3H1 for connecting the sliding groove 3H with the outside, and the sliding column H is provided with a toggle block H1 penetrating through the toggle groove 3H1 to the outside.

Specifically, when the sleeve 4 needs to be fixed, the shifting block H1 is pushed to drive the sliding column H to move along the length direction of the sliding groove 3H, and further the limiting convex head H0 is driven to be far away from the through hole 3H0 and is accommodated in the sliding groove 3H; then, the sleeve 4 is rotated, so that the second positioning mark Z2 on the sleeve 4 is aligned with the indicator mark Z3 on the fixing seat 3, at this time, the limiting hole 4k0 on the sleeve 4 is coaxial with the through hole 3H0 on the fixing seat 3, and the user drives the sliding column H to move along the positive direction of the length of the sliding groove 3H by pushing the shifting block H1, so that the limiting raised head H0 is driven to be close to the through hole 3H0 and penetrate through the through hole 3H0 to the limiting hole 4k0, and the rotation of the sleeve 4 can be limited.

Further, referring to fig. 12, the present invention further includes a return spring T, the return spring T is installed in the sliding groove 3H, one end of the return spring T abuts against the second end of the sliding column H, and the other end of the return spring T abuts against the second side of the sliding groove 3H; when a user pushes the shifting block H1 to drive the limiting raised head H0 to be far away from the through hole 3H0, the elastic compression energy storage is reset; when the user opens the shifting block H1, the return spring T stores energy and recovers, and drives the limiting lug on the sliding column H to approach the through hole 3H0 until the limiting lug penetrates through the through hole 3H0 to the outside; therefore, the design of the return spring T is convenient for the user to use.

Referring to fig. 6-8, the fixing base 3 is further provided with a start opening 30a communicating with the fixing groove 30, and a user can pull out the high-pressure syringe 1 placed in the fixing groove 30 by extending a finger into the fixing groove 30 from the start opening, so that the high-pressure syringe 1 can be conveniently detached by the user.

Referring to fig. 1-14, when the high-pressure syringe 1 is not used, the needle of the high-pressure syringe 1 needs to be prevented from contacting the outside, and therefore, the utility model further comprises a dustproof sleeve C which is detachably mounted on the needle of the high-pressure syringe 1; and need take off this dustproof sleeve C when using high pressure injection cylinder 1, consider the dustproof sleeve C's of taking off problem of placing, the utility model discloses in be equipped with on cover shell 4 and place hole 4C, dustproof sleeve C with place hole 4C detachably and be connected, the user will take off dustproof sleeve C install place hole 4C in can, and after 1 uses of high pressure injection cylinder, with dustproof sleeve C from placing hole 4C take off and again cover the syringe needle that closes high pressure injection cylinder 1 can.

Specifically, referring to fig. 14, a threaded cylinder C0 is arranged inside the dust-proof sleeve C, and the dust-proof sleeve C is in threaded connection with the needle of the high-pressure syringe 1 through a threaded cylinder C0; the outer side of the dustproof sleeve C is provided with threads, and the dustproof sleeve C is connected with the placing hole 4C in a threaded mode through the threads on the outer side of the dustproof sleeve C.

In conclusion, the design of the sleeve can avoid the contact between the needle head of the high-pressure injection syringe 1 and the outside, and the placement design is convenient for a user to place the taken-down sleeve, so that the loss of the sleeve is avoided.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Claims (10)

1. A syringe accessory for detachably mounting a high-pressure injection syringe (1) on a high-pressure contrast injector (2), characterized by comprising a fixed seat (3) and a casing (4);

the fixed seat (3) is arranged on the high-pressure radiography injector (2), a fixed groove (30) for installing the high-pressure injection syringe (1) is formed in the fixed seat (3), and a stop block (3k) is arranged at a notch groove of the fixed groove (30) of the fixed seat (3);

a sleeve cavity (40) with an outward opening is arranged in the sleeve shell (4), and the sleeve shell (4) is sleeved at one end of the high-pressure injection needle cylinder (1) through the sleeve cavity (40); a clamping block (4k) is arranged at an opening of the sleeve cavity (40), the clamping block (3k) can extend into the sleeve cavity (40), and the clamping block (4k) can be abutted against the clamping block (3k) by rotating the sleeve shell (4), so that the sleeve shell (4) is fixedly connected with the fixed seat (3).

2. A syringe accessory according to claim 1, wherein the high-pressure syringe (1) is rotatably mounted in the fixing groove (30), and the end of the high-pressure syringe (1) connected to the casing (4) is provided with an anti-rotation block (1f), and the casing (4) is provided with an anti-rotation groove (4f) for engaging with the anti-rotation block (1f) to prevent the casing (4) from rotating relative to the high-pressure syringe (1).

3. A syringe accessory according to claim 1, wherein a plurality of stops (3k) are provided, and the stops (3k) are spaced apart from each other; the clamping blocks (4k) are also provided with a plurality of clamping blocks (4k), the clamping blocks (4k) are spaced from each other to form a plurality of clamping grooves (401) communicated with the sleeve cavity (40), the plurality of stopping blocks (3k) can correspondingly penetrate through the clamping grooves (401) and extend into the sleeve cavity (40), and the plurality of clamping blocks (4k) can be abutted to the plurality of stopping blocks (3k) by rotating the sleeve shell (4).

4. A syringe accessory according to claim 3, wherein the jacket (4) is of circular design and the jacket (4) is provided on the outside of its circumference with a first index (Z1) and a second index (Z2), the first index (Z1) corresponding to the catch (401) and the second index (Z2) corresponding to the catch (4 k); an indicator (Z3) is arranged on the fixed seat (3), and the first indicator (Z1) and the second indicator (Z2) can be respectively aligned with the indicator (Z3) by rotating the sleeve (4).

5. The auxiliary fitting for the syringe as claimed in claim 4, further comprising a sliding column (H), wherein a first end of the sliding column (H) is provided with a limit protruding head (H0), the fixed seat (3) is provided with a sliding groove (3H), and a first side of the sliding groove (3H) is provided with a through hole (3H0) communicated with the outside; a limiting hole (4k0) is formed in a clamping block (4k) corresponding to the second positioning mark (Z2), the sliding column (H) is slidably mounted in the sliding groove (3H), and the limiting raised head (H0) can slide along with the sliding column (H) to protrude out of the through hole (3H0) and is clamped with the limiting hole (4k 0).

6. A syringe accessory according to claim 5, wherein the holder (3) further has a shifting groove (3H1) communicating the sliding groove (3H) with the outside, and the sliding column (H) has a shifting block (H1) passing through the shifting groove (3H1) to the outside.

7. A syringe accessory according to claim 6, further comprising a return spring (T), wherein the return spring (T) is mounted in the sliding slot (3H) and one end of the return spring (T) abuts against the second end of the sliding column (H), and the other end of the return spring (T) abuts against the second side of the sliding slot (3H).

8. A syringe accessory according to claim 1, wherein the holder (3) is further provided with a lifting opening (30a) communicating with the fixing groove (30).

9. A syringe accessory according to claim 1, further comprising a dust-proof sleeve (C) detachably mounted on the needle of the high-pressure injection syringe (1), wherein the casing (4) is provided with a placement hole (4C), and the dust-proof sleeve (C) is detachably connected with the placement hole (4C).

10. Syringe accessory according to claim 9, wherein the dust sleeve (C) is internally provided with a threaded barrel (C0) and is in threaded connection with the needle of the high-pressure syringe (1) through the threaded barrel (C0); the outer side of the dustproof sleeve (C) is provided with threads, and the dustproof sleeve (C) is in threaded connection with the placement hole (4C) through the threads on the outer side of the dustproof sleeve (C).

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