KR101738675B1 - multi-needles assembly having means for controlling depth of insertion - Google Patents

multi-needles assembly having means for controlling depth of insertion Download PDF

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Publication number
KR101738675B1
KR101738675B1 KR1020150181648A KR20150181648A KR101738675B1 KR 101738675 B1 KR101738675 B1 KR 101738675B1 KR 1020150181648 A KR1020150181648 A KR 1020150181648A KR 20150181648 A KR20150181648 A KR 20150181648A KR 101738675 B1 KR101738675 B1 KR 101738675B1
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KR
South Korea
Prior art keywords
male
bolt
nut
female
base end
Prior art date
Application number
KR1020150181648A
Other languages
Korean (ko)
Inventor
이현철
윤경식
Original Assignee
주식회사 유성메디컬
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Application filed by 주식회사 유성메디컬 filed Critical 주식회사 유성메디컬
Priority to KR1020150181648A priority Critical patent/KR101738675B1/en
Application granted granted Critical
Publication of KR101738675B1 publication Critical patent/KR101738675B1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/46—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for controlling depth of insertion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3295—Multiple needle devices, e.g. a plurality of needles arranged coaxially or in parallel

Abstract

The present invention relates to a multi-needle assembly in which a central hub is rotatably inserted through a control tube portion in a rotatable manner, and the control tube portion is mounted on a suction cap in a bolt-and-nut manner.

Description

[0001] The present invention relates to a multi-needle assembly having insertion depth adjusting means,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multi-needle assembly for skin surgery, and more particularly, to a multi-needle assembly capable of accurately controlling the depth of a skin inserted into a skin by a simple operation.

In general, a procedure (hereinafter, referred to as a "multi-hole procedure") in which a plurality of minute holes are drilled in the skin and a drug or the like is injected into the body eliminates various skin troubles such as wrinkles, stains, dullness, stretch marks, acne, freckles, , Maintaining hair health, improving hair loss, and is being widely applied to treat obesity.

Such a multi-hole procedure can achieve a quick surgical effect by allowing the new skin to grow using the self-sustaining force of the damaged skin tissue, or allowing drugs and the like to penetrate into the body through the fine holes.

However, in the above-described multi-hole procedure, since the practitioner often uses the intuition of a patient who repeats the action of pulling and pulling the needle one by one into the skin of the recipient, the recipient may suffer pain or fail to inject the needle at a certain depth, There is a problem that it can not be uniformly performed.

A multi-needle assembly for solving such a problem is disclosed in Korean Patent No. 10-1398516.

The above-described multi-needle assembly includes a central hub having a multi-needle mounted thereon, a suction cap inserted into the central hub in a male and female manner, and an adjuster rotatably mounted at the base end of the suction cap, And the center hub forms a bolt to form a male screw thread on the middle outer circumferential surface of the center hub, so that the center hub rotates forward and backward as the adjustment section rotates The length of the multi-needle protruding from the distal end of the suction cap can be adjusted so that the operator can easily adjust the insertion depth of the needle to the skin.

However, since the above-described multi-needle assembly has a male screw threaded on the center hub having a small diameter, the adjusting screw is fastened to the male screw of the center hub, There is a problem in that the contact area between the male screws is too small to unintentionally loosen or tighten the adjustment portion with respect to the central hub and the protrusion length of the multi needle can not be stably maintained, There is a limit in increasing the pitch of the threads due to the small relationship, so that the movement length of the center hub in accordance with the rotation angle of the adjustment unit in the direction of the rotation axis is small and the moving speed of the multi-

The present invention has a problem in solving the above-described problems.

The present invention is characterized in that the adjusting portion is circumscribed to the central hub in such a manner that it can not be moved in the axial direction of the rotation axis of the adjusting portion with respect to the center hub and is rotatable about the rotational center axis, The above problems can be solved by making bolts and fastening them.

According to the present invention, since the female threaded portion of the adjusting portion is fastened to the male threaded portion of the suction cap in a state in which the suction cap having a large diameter is formed by the above-described problem, The contact area between the threaded hole and the male thread of the suction cap is increased to prevent the adjustment portion from being unintentionally rotated in the unwinding direction or the tightening direction with respect to the suction cap, The central hub is not moved in the direction of the axis of rotation of the adjusting part with respect to the suction cap, so that the multi-needle is stably maintained in the position in the longitudinal direction of the multi-needle, Since the diameter is large, the pitch of the threads can be made larger than in the prior art, Full-width can also be a moving length of the central hub it provides the action is a longitudinal moving speed of the cursor in accordance with the multi-needle faster effect.

1 is a sectional view of a multi-needle assembly of an embodiment according to the present invention,
Figure 2 is an exploded view of Figure 1,
3 is a cross-sectional view of the multi-needle assembly of the modified embodiment of FIG.

Hereinafter, a multi-needle assembly according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2 attached hereto.

1, the multi-needle assembly of the present embodiment is designated by reference numeral 100.

1 and 2, the multi-needle assembly 100 includes a bolt portion 10 in which a plurality of injection needles 1 are movable in a longitudinal direction, a length of the injection needle 1 A rod portion 20 whose tip is inscribed at the base end of the bolt portion 10 so as to be movable in the direction of the axis of the bolt portion 10, And a nut portion 30 which is rotatably circumscribed and fastened to the base 10.

The bolt portion 10 includes a partition wall portion 13 formed in a tubular shape and dividing the inside into a leading end space 11 and a root end space 12, a male threaded portion 14 formed on the outer peripheral surface on the base end side, A plurality of through holes 15 formed in the partition wall portion 13 so that the needle 1 can be inserted and moved in the longitudinal direction of the injection needle 1 and a plurality of through holes 15 formed in the distal space 11, And a suction pipe 18 connected to one end of the suction pipe and connected to a suction source whose other end is not shown.

The rod section 20 is inserted into the base end space 12 of the bolt portion 10 and is inserted into the base end space 12 from the injection needles 1 1), a tip end portion (22) movably and non-rotatably mounted in the longitudinal direction; An intermediate portion 24 formed with an annular groove 23 on the outer peripheral surface thereof; And a base end portion 26 formed with a female-like portion 25 which is male-female-coupled to the liquid outlet of a cylinder (not shown).

The flow path 27 is formed in the distal end portion 22, the intermediate portion 24 and the proximal end portion 26 so as to communicate with the plurality of injection needles 1 and to communicate with the liquid outlet of the cylinder and the female- Is formed.

The nut portion 30 is formed in a generally cylindrical shape and has a female threaded stud 31 on its inner circumferential surface to which the male threaded portion 14 can be fastened. A male protrusion 32 is formed which is coupled to the groove 23 so as not to be rotatable and movable in the rotational axis direction.

When the user turns the nut portion 30 clockwise or counterclockwise with the other hand while holding the tip of the bolt portion 10 with one hand in the multi needle assembly 100 constructed as described above, The rod 20 coupled to the nut 30 is also prevented from moving forward or backward as the nut 30 rotates because the bolt 10 fastened to the nut 30 is fixed. The plurality of injection needles 1 mounted on the rod 20 come and go at the tip of the bolt portion 10 while advancing or retracting together.

Therefore, in the multi-needle assembly 100 constructed as described above, when the nut portion 30 is inserted into the bolt portion 10 in a state where the male threaded portion 14 is formed in the bolt portion 10 having a large diameter, The contact area between the male threaded portion 31 of the nut portion 30 and the male threaded portion 14 of the nut portion 10 is larger than the conventional one, The nut portion 30 is prevented from rotating intentionally in the direction of unwinding or tightening with respect to the bolt portion 10 so that the multi-injection needle 30, which is loaded on the rod 20 rotatably coupled to the nut portion 30, (1) is stably held in place in the longitudinal direction of the multi-injection needle, and the diameter of the male screw incision part (14) is larger than that of the conventional one, , The load (30) in the direction of the rotational axis of the nut 20) is large, so that it is possible to provide the effect that the moving speed of the plurality of injection needles 1 in the longitudinal direction is fast.

3, in order to prevent the nut portion 30 from being detached from the bolt portion 10, the multi-needle assembly 100 according to the above-described embodiment is provided with the above- A C-shaped step portion 40 protruding radially outward from the base 14 of the bolt portion 10 in the base end direction (in the upstream end direction in the fastening direction) The female threaded stud 31 of the nut portion 30 may be a single line or a plurality of lines.

As the nut 30 is rotated in the tightening direction, the female screw thread 31 of the nut 30 enters the circumferential hollow space of the C-shaped jaw 40 The male screw of the bolt portion 10 is fastened to the stud 14 and the nut portion 30 is rotated in the releasing direction so that the nut portion 30 The male threaded stud 31 is engaged with the C-shaped step portion 40 while the male threaded portion of the bolt portion 10 is unwound from the stud 14 and the nut portion 30 is detached from the bolt portion 10 .

Although the jaw portion 40 is formed in the bolt portion 10 and the female threaded portion 31 of the nut portion 30 is formed in one line in the modified embodiment, And the jaw portion 40 is formed on the inner surface of the distal end side (upstream end in the fastening direction) of the nut portion 30 and the female screw threaded portion 31 of the bolt portion 30 has one row or plural It may be in the form of a line.

10: bolt portion, 20: rod, 30: nut portion

Claims (3)

delete A bolt portion 10 in which a plurality of needles 1 are movable in a longitudinal direction,
A rod portion 20 in which a tip end of the plurality of injection needles 1 is inserted is inscribed on the base end of the bolt portion 10 so as to be movable in the longitudinal direction of the injection needle 1,
And a nut part (30) rotatably circumscribed and fastened to the bolt part (10) while being circumscribed by the rod part (20) so as to be rotatable and unrotatable in the rotational axis direction,
A flow path 27 communicating with the plurality of injection needles 1 is formed in the rod portion 20,
The bolt portion (10)
A partition wall portion 13 which is tubular and divides the inside into a leading end space 11 and a root end space 12,
A male threaded portion 14 formed on the outer peripheral surface on the base end side, and
And a plurality of through holes (15) formed in the partition wall portion (13) so that the plurality of injection needles (1) can be inserted and moved in the longitudinal direction of the injection needle (1)
The rod section (20)
The plurality of injection needles 1 are loaded in a protruded state and inserted in the base end space 12 of the bolt portion 10 to be movable in the base end space 12 in the longitudinal direction of the injection needle 1. [ And a non-rotatably mounted tip portion 22;
An intermediate portion 24 formed with an annular groove 23 on the outer peripheral surface thereof; And
And a base end portion (26) formed with a female-like portion (25) to be male-female connected to the liquid outlet of the cylinder,
The flow path 27 is formed in the distal end portion 22, the intermediate portion 24 and the proximal end portion 26 so as to communicate with the plurality of injection needles 1 and to communicate with the liquid outlet of the cylinder and the female- ),
The nut portion 30 is generally cylindrical and an inner circumferential surface of the nut portion 30 is formed with a female threaded portion 31 to which the male screw portion 14 can be fastened, Wherein a protrusion (32) is formed at the proximal end of the protrusion (30) so that a tip extending radially inwardly is rotatably and non-movably coupled to the groove (23) Wherein the multi-needle assembly comprises: 3. The method of claim 2,
One of the bolt portion 10 and the nut portion 30 is provided with a male or female screw and a C-shaped jaw portion (not shown) protruding in the radial direction from the male- 40 are formed, and
Wherein a male or a female screw thread is formed in the other of the bolt part (10) and the nut part (30) so that the male or female screw is fastened to the male threaded part.
KR1020150181648A 2015-12-18 2015-12-18 multi-needles assembly having means for controlling depth of insertion KR101738675B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150181648A KR101738675B1 (en) 2015-12-18 2015-12-18 multi-needles assembly having means for controlling depth of insertion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150181648A KR101738675B1 (en) 2015-12-18 2015-12-18 multi-needles assembly having means for controlling depth of insertion

Publications (1)

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KR101738675B1 true KR101738675B1 (en) 2017-05-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102203123B1 (en) * 2020-06-29 2021-01-14 (주)풍림파마텍 Multi-needle module for surgery
US11596778B2 (en) * 2019-04-30 2023-03-07 Huons Medical Co., Ltd. Insertion type drug injection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100991708B1 (en) * 2010-06-18 2010-11-03 송경진 Reversible resin needle set for one time use
KR101066883B1 (en) * 2010-07-01 2011-09-26 최종수 Multi injection needle applied electric current and automatic injection apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100991708B1 (en) * 2010-06-18 2010-11-03 송경진 Reversible resin needle set for one time use
KR101066883B1 (en) * 2010-07-01 2011-09-26 최종수 Multi injection needle applied electric current and automatic injection apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11596778B2 (en) * 2019-04-30 2023-03-07 Huons Medical Co., Ltd. Insertion type drug injection device
KR102203123B1 (en) * 2020-06-29 2021-01-14 (주)풍림파마텍 Multi-needle module for surgery

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