CN220656116U - Sterile injection needle convenient for adjusting needle outlet length - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, and particularly discloses a sterile injection needle convenient for adjusting the length of an outgoing needle. The device comprises a shell base and an inner container needle seat arranged in the shell base, wherein an elastic piece is arranged at the inner container needle seat and the top of the inner side of the shell base, the inner container needle seat is in sliding connection with the top of the shell base through the elastic piece, a rear plugging liquid injection screw rod is arranged at the top of the inner container needle seat, an adjusting cover, a clamp spring box and a fastening cover are sequentially sleeved on the rear plugging liquid injection screw rod from top to bottom, the clamp spring box sequentially comprises an upper disc cover, a clamp spring and a lower disc cover from top to bottom, two positive spiral sections are arranged on one side of the lower disc cover, which is close to the inner container needle seat, two reverse spiral sections corresponding to the positive spiral sections are arranged on one side of the inner container needle seat, which is close to the lower disc cover, and one positive spiral section is sleeved outside the other positive spiral section; the sterile injection needle does not need manual operation to enable the inner container needle seat to retract, so that the operation difficulty of operators is reduced, and the use convenience of the injection needle is improved.

Description

Sterile injection needle convenient for adjusting needle outlet length

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a sterile injection needle convenient for adjusting the length of an outgoing needle.

Background

Skin beauty usually uses a sterile injection needle, the sterile injection needle injects beauty liquid into dermis through a needle head inserted into the skin at the front end, the extending length of the needle head determines the depth of inserting into dermis, however, the thickness of the dermis from the outer surface of epidermis to the skin varies due to individual of each person and skin of different body parts of each person, pinholes remain in the skin when the needle head is inserted too far into the dermis of the skin, and red swelling of the skin is caused.

In the related art, the precision is poor because the needle outlet length of the sterile injection needle cannot be adjusted or regulated, so that an operator cannot control the injection depth of the injection needle penetrating into subcutaneous tissues, the operation difficulty of the operator is greatly increased, and after the injection is finished, the needle head needs to be manually operated to be retracted, so that the operation difficulty of the operator is further increased.

The technical problem to be solved by the application is as follows: how to improve the convenience of the use of the injection needle.

Disclosure of Invention

In order to overcome the deficiencies of the prior art, it is an object of the present utility model to provide a sterile injection needle that facilitates adjustment of the needle withdrawal length.

The technical scheme adopted by the utility model is as follows:

the utility model provides a sterile injection needle convenient to adjust out needle length, is in including shell base and setting the inside inner bag needle file of shell base, the inner bag needle file is provided with the elastic component with the inboard top of shell base, elastic component sliding connection is passed through at the top of inner bag needle file and shell base, the top of inner bag needle file is provided with back stifled notes liquid screw rod, the back stifled notes liquid screw rod is gone up by last cover in proper order down and is equipped with adjustment lid, jump ring box and the cover that buckles, the bottom and the inner bag needle file of back stifled notes liquid screw rod are connected, the cover that buckles is connected with the shell base outside, jump ring box joint is under the adjustment lid, the adjustment lid passes through the jump ring box and buckles the cover joint, the adjustment lid drives the jump ring box and rotates, jump ring box and inner bag needle file sliding connection, the spring box is exerted pressure when rotating, make inner bag and shell base slide relatively, the jump ring box includes upper disc lid, jump ring and lower disc lid down in proper order by last, the spiral cover is provided with the spiral cover under the spiral cover one side of the spiral cover is close to the spiral cover under the spiral cover, the spiral cover is provided with the outside and is close to one side of the spiral cover, the spiral cover is provided with the spiral cover outside the spiral cover, and is close to one side of the spiral cover under the spiral cover, the spiral cover is provided with the cross-wound cover, and is close to one side of the spiral cover.

When needs use aseptic syringe injection, rotatory regulation lid, regulation lid drives the jump ring box and rotates, jump ring box passes through two positive spiral cross-sections and inner bag needle file sliding connection, the jump ring box pushes down the inner bag needle file through positive spiral cross-section, the elastic component is in tensile state, after the positive spiral cross-section rotated to the peak of reverse spiral cross-section, continue rotatory regulation lid, the peak of positive spiral cross-section jumps to the minimum of reverse spiral cross-section, the elastic component kick-backs rapidly, and then, the elastic component drives the inner bag needle file and kick-backs rapidly, this aseptic syringe need not manual operation and makes the inner bag needle file to fall back, operating personnel's operation degree of difficulty has been reduced, the convenience that the syringe used has been improved.

In some embodiments, a plurality of limit wave grooves are arranged on the inner side of the fastening cover, and the limit wave grooves are distributed along the circumferential surface of the inner side of the fastening cover.

The protrusion on the jump ring can be with spacing wave groove butt, and when rotatory regulation lid, the protrusion sends the sound feedback of "click" with spacing wave groove striking and goes out needle information, and convenient accurate location, and then accurate regulation goes out needle length, and convenient control injection subcutaneous tissue degree of depth reduces the painful sense that the injection needle pierces subcutaneous tissue.

In some embodiments, the outer side of the fastening cover is provided with a scale ring, the outer side of the adjusting cover is provided with an indication strip for indicating scales, the scales of the scale ring correspond to the limit wave grooves one by one, and the width of the limit wave grooves is the same as the length of the needle.

The width of the limiting wave groove is the same as the length of the needle, the limiting wave groove corresponds to the scales of the scale ring one by one, visual management is convenient for the length of the needle, and the operation of operators is convenient.

In some embodiments, the elastic member is a compression spring, one end of the compression spring is abutted against the housing base, the other end of the compression spring is fixedly connected with the liner needle seat, and the compression spring is in a free state.

In some embodiments, the compression springs are provided in plurality, positioning columns corresponding to the compression springs are arranged on the shell base, and the compression springs are sleeved on the positioning columns.

In some embodiments, the outer side of the housing base is sleeved with a base rubber pad.

In some embodiments, a plurality of needles are arranged at the bottom of the inner container needle seat, and the plurality of needles are arranged on the inner container needle seat in an array shape.

The utility model has the beneficial effects that: when needs use aseptic syringe injection, rotatory regulation lid, regulation lid drives the jump ring box and rotates, jump ring box passes through two positive spiral cross-sections and inner bag needle file sliding connection, the jump ring box pushes down the inner bag needle file through positive spiral cross-section, the elastic component is in tensile state, after the positive spiral cross-section rotated to the peak of reverse spiral cross-section, continue rotatory regulation lid, the peak of positive spiral cross-section jumps to the minimum of reverse spiral cross-section, the elastic component kick-backs rapidly, and then, the elastic component drives the inner bag needle file and kick-backs rapidly, this aseptic syringe need not manual operation and makes the inner bag needle file to fall back, operating personnel's operation degree of difficulty has been reduced, the convenience that the syringe used has been improved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is an exploded view of the overall structure of the present utility model.

Fig. 3 is a cross-sectional view of the overall structure of the present utility model.

Fig. 4 is a schematic structural view of the bottom wall cover according to the present utility model.

Fig. 5 is a schematic view showing the structure of the liner needle holder according to the present utility model.

The reference numbers and designations in the figures correspond to the following: 1. a housing base; 11. positioning columns; 12. a base rubber cushion; 2. a liner needle seat; 21. a reverse spiral section; 3. an elastic member; 4. plugging the liquid injection screw rod; 5. an adjustment cover; 51. an indicator bar; 61. a top tray cover; 611. a through hole; 612. a limit protrusion; 613. a connection hole; 62. clamping springs; 621. a protrusion; 63. a lower tray cover; 631. a positive helical section; 7. a fastening cover; 71. limiting wave grooves; 72. a scale ring; 8. a flat head screw; 81. and a limiting ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution:

the sterile injection needle convenient for adjusting the needle outlet length comprises a housing base 1, a liner needle seat 2 arranged in the housing base 1, an elastic piece 3 arranged between the liner needle seat 2 and the top of the inner side of the housing base 1, a rear blocking liquid injection screw 4 arranged at the top of the liner needle seat 2, a fastening cover 7 sleeved on the rear blocking liquid injection screw 4 from top to bottom in sequence, a clamping spring box and an adjusting cover 5.

In the embodiment, the elastic pieces 3 are compression springs, the elastic pieces 3 are 4, one side, close to the inner container needle seat 2, of the outer container needle seat 1 is provided with positioning columns 11, positioning columns 11 are provided with positioning grooves with upward openings, flat head screws 8 are arranged between the inner container needle seat 2 and the outer container needle seat 1, the flat head screws 8 penetrate through the inner container needle seat 2 downwards in the vertical direction and are in sliding connection with the positioning columns 11 through the positioning grooves, limiting rings 81 are arranged on screws of the flat head screws 8, the bottoms of the limiting rings 81 can be abutted against the tops of the positioning columns 11, the compression springs are sleeved on the peripheries of the positioning columns 11 and the flat head screws 8, one ends of the compression springs are fixedly connected with the inner container needle seat 2, and the other ends of the compression springs are fixedly connected with the outer container needle seat 1.

The bottom of back stifled notes liquid screw rod 4 bonds with the top of inner bag needle file 2, and jump ring box joint is in the below of adjusting lid 5, adjusts lid 5 through the jump ring box and the cover 7 joint that buckles, buckles cover 7 and shell base 1 outside and is connected, jump ring box and inner bag needle file 2 sliding connection, and the regulation lid 5 drives jump ring box pivoted while and applys pressure to compression spring, makes inner bag needle file 2 along vertical direction towards shell base 1 relative slip.

The clamping spring box sequentially comprises an upper disc cover 61, a clamp spring 62 and a lower disc cover 63 from top to bottom, the upper disc cover 61 and the lower disc cover 63 are mutually buckled, a boss 621 is arranged on the outer portion of the clamp spring 62, a through hole 611 for the boss 621 to pass is formed in the side wall of the upper disc cover 61, the boss 621 is movably transmitted out of the upper disc cover 61 and is abutted with the inner wall of the fastening cover 7, the lower disc cover 63 is abutted with the top of the liner needle seat 2, two positive spiral sections 631 are arranged on one side, close to the liner needle seat 2, of the lower disc cover 63, two reverse spiral sections 21 opposite to the positive spiral sections 631 are arranged on one side, close to the lower disc cover 63, of the liner needle seat 2, and one positive spiral section 631 is sleeved on the outer side of the other positive spiral section 631.

Wherein, a plurality of connecting holes 613 are formed on the upper disc cover 61, the bottom fixedly connected with of adjustment lid 5 and the spliced pole of connecting hole 613 looks adaptation, adjustment lid 5 passes through spliced pole and upper disc cover 61 joint, rotate adjustment lid 5, adjustment lid 5 drives the jump ring box and rotates, when the highest point of the positive spiral cross section 631 of lower disc lid 63 and the highest point of the reverse spiral cross section 71 of inner bag needle file 2 contact, inner bag needle file 2 moves down, when the needle length reaches the maximum scale, continue rotatory adjustment lid 5, the highest point of positive spiral cross section 631 jumps to the minimum point of reverse spiral cross section 71, compression spring contracts and drives inner bag needle file 2 and rise, the syringe needle can withdraw fast, the convenience of syringe needle use has been improved, be provided with a plurality of spacing protruding 621 on the upper disc cover 61, the inside spacing groove that corresponds with spacing protruding 621 of tight cover 7 is provided with upper disc cover 61 and tight cover 7 through spacing protruding 621 and spacing groove.

The inside of the fastening cover 7 is provided with a plurality of spacing wave grooves 71, the spacing wave grooves 71 are arranged along the inner circumferential surface of the fastening cover 7, the outside of the fastening cover 7 is provided with a scale ring 72, the outside of the adjusting cover 5 is provided with an indication strip 51 for indicating scales, scales on the scale ring 72 are in one-to-one correspondence with the spacing wave grooves 71, the protrusions 621 of the snap springs 62 are embedded in the spacing wave grooves 71, and when the snap spring box rotates, the protrusions 621 of the snap springs 62 and the spacing wave grooves 71 collide to send 'click' sound feedback needle adjusting information, so that the needle length can be accurately adjusted, the needle head can be conveniently controlled, the depth of entering subcutaneous tissues can be conveniently controlled, and the pain feeling of the needle head penetrating into subcutaneous tissues can be reduced.

In this embodiment, the number of the limit wave grooves 71 is 40, the scale ring 72 is provided with 0-2.0mm of adjustment scales corresponding to the number of the limit wave grooves 71, the protrusions 621 on the clamp spring 62 each bounce one cell, the length of the visit extends or contracts by 0.05mm and makes a click sound, and an operator can select the fastening cover 7 of different scale rings 72 according to different patients, so that the applicability of the sterile injection needle is improved.

In addition, the outside cover of shell base 1 is equipped with base cushion 12, and the bottom of inner bag needle file 2 is provided with a plurality of syringe needles, and the syringe needle is the array form setting on the inner bag needle file 2, and in this embodiment, the syringe needle is provided with 9.

The working principle and the using flow of the utility model are as follows: when the sterile injection needle is needed, firstly, the corresponding injection needle is selected according to the required needle outlet length, then the injection needle is placed at the part to be injected, the adjusting cover 5 is rotated, the liner needle seat 2 is pushed by the cooperation of the positive spiral section 631 and the reverse spiral section 21 to adjust the needle outlet length of the needle head, the adjusting cover 5 is continuously rotated after injection is finished, the highest point of the positive spiral section 631 jumps to the lowest point of the reverse spiral section 71, the compression spring is contracted and drives the liner needle seat 2 to ascend, the needle head can be quickly retracted, and the use convenience of the injection needle is improved.

Finally, it should be noted that: the foregoing is merely a preferred example of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. The utility model provides a sterile injection needle convenient to adjust out needle length, is in including shell base (1) and setting inner bag needle file (2) inside shell base (1), a serial communication port, inner bag needle file (2) are provided with elastic component (3) with shell base (1) inboard top, elastic component (3) sliding connection is passed through at inner bag needle file (2) and shell base (1) top, the top of inner bag needle file (2) is provided with back stifled notes liquid screw rod (4), back stifled notes liquid screw rod (4) are gone up by last cover down in proper order and are equipped with adjustment lid (5), jump ring box and buckle cover (7), the bottom and the inner bag needle file (2) of back stifled notes liquid screw rod (4) are connected, buckle cover (7) are connected with shell base (1) outside, jump ring box joint is in the below of adjustment lid (5), adjustment lid (5) pass through jump ring box and buckle cover (7) joint, adjustment lid (5) drive the box and rotate, jump ring box and inner bag needle file (2) and spring cover (2) are exerted to slider (62) when being connected in proper order to the pressure, jump ring cover (63) are gone up to the relative dish (1), the upper disc cover (61) and the lower disc cover (63) are buckled with each other, a bulge (621) is arranged outside the clamp spring (62), a through hole (611) for the bulge (621) to penetrate is formed in the side wall of the upper disc cover (61), the bulge (621) movably penetrates out of the upper disc cover (61) and is abutted to the inner wall of the fastening cover (7), the lower disc cover (63) is abutted to the top of the inner container needle seat (2), two positive spiral sections (631) are arranged on one side, close to the inner container needle seat (2), of the inner container needle seat (2), two reverse spiral sections (21) corresponding to the positive spiral sections (631) are arranged on one side, close to the lower disc cover (63), of the inner container needle seat (2), and one positive spiral section (631) is sleeved on the outer side of the other positive spiral section (631).

2. The sterile injection needle convenient to adjust the needle outlet length according to claim 1, wherein a plurality of limiting wavy grooves (71) are formed in the inner side of the fastening cover (7), and the limiting wavy grooves (71) are distributed along the inner circumferential surface of the fastening cover (7).

3. The sterile injection needle convenient for adjusting the needle outlet length according to claim 2, wherein a scale ring (72) is arranged on the outer side of the fastening cover (7), an indication strip (51) for indicating scales is arranged on the outer side of the adjusting cover (5), and the scales of the scale ring (72) are in one-to-one correspondence with the limiting wave grooves (71).

4. The sterile injection needle convenient for adjusting the needle outlet length according to claim 1, wherein the elastic piece (3) is a compression spring, one end of the compression spring is abutted with the housing base (1), the other end of the compression spring is fixedly connected with the liner needle seat (2), and the compression spring is in a free state.

5. Sterile injection needle convenient for adjusting the length of the needle out according to claim 4, characterized in that a plurality of compression springs are provided, a positioning column (11) corresponding to the compression springs is arranged on the housing base (1), and the compression springs are sleeved on the positioning column (11).

6. Sterile injection needle convenient for adjusting the length of the needle out according to claim 1, characterized in that the outer side of the housing base (1) is sleeved with a base rubber pad (12).

7. The sterile injection needle convenient for adjusting the needle outlet length according to claim 1, wherein a plurality of needles are arranged at the bottom of the inner container needle seat (2), and the plurality of needles are arranged on the inner container needle seat (2) in an array manner.