CN212326480U - Guide needle for line carving sawtooth line with smooth needle hole - Google Patents

Guide needle for line carving sawtooth line with smooth needle hole Download PDF

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Publication number
CN212326480U
CN212326480U CN202021184615.1U CN202021184615U CN212326480U CN 212326480 U CN212326480 U CN 212326480U CN 202021184615 U CN202021184615 U CN 202021184615U CN 212326480 U CN212326480 U CN 212326480U
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CN
China
Prior art keywords
needle
fixed
grab handle
line
sawtooth line
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Expired - Fee Related
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CN202021184615.1U
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Chinese (zh)
Inventor
李正勇
张振宇
陈治兴
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West China Hospital of Sichuan University
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West China Hospital of Sichuan University
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Priority to CN202021184615.1U priority Critical patent/CN212326480U/en
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Publication of CN212326480U publication Critical patent/CN212326480U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a smooth line carving of pinhole guide pin for sawtooth line relates to medical plastic apparatus technical field, and its technical scheme main points are: the needle body and the grab handle are flat obtuse-angle needle heads, the flat obtuse-angle needle heads are provided with oval needle holes, and the edges of the oval needle holes are polished and smoothly transited; a fixed needle core is arranged in the needle body; the end part of the needle body positioned in the grab handle is fixedly connected with a hollow connecting end; the end part of the fixed needle core is provided with a connector; the inner wall of the grab handle is provided with a slide rail; the wall surface of the grab handle is provided with a strip-shaped groove, a first sliding button and a second sliding button. When the guide needle draws the sawtooth line to route, the sawtooth line is not easily cut off by the edge of the needle hole at the needle head of the guide needle, the guide needle conveniently draws the sawtooth line to carry out the forward and reverse routing operation, one end of the sawtooth line can be stably fixed at the needle hole, and the quality of the line carving operation is conveniently ensured; meanwhile, the length of the needle body can be adjusted according to needs by the guide needle, the operation is convenient, and the complicated operation of replacing guide needles with different lengths is avoided.

Description

Guide needle for line carving sawtooth line with smooth needle hole
Technical Field
The utility model relates to the technical field of medical plastic apparatus, more specifically say, it relates to a smooth for line carving sawtooth line guide pin of pinhole.
Background
The line carving is one of the minimally invasive techniques for the beauty surgery for the purpose of thread burying and youth keeping, has the clinical advantages of simple and convenient operation, good face lifting and tightening effects, quick effect taking, few complications and the like, and is popular with more and more medical cosmetologists and beauty-seeking people. With the development of minimally invasive surgery, the operation of facial rejuvenation by burying thread (commonly called as "thread carving") becomes an important surgical mode for facial rejuvenation. Line carving beauty, also called line embedding lifting, is the latest minimally invasive surgery which utilizes minimally invasive puncture and embeds jagged lines in a skin fascia layer (SMAS) to lift and pull drooped skin so as to achieve the overall effects of contour lifting, tightening and the like.
In line carving beauty treatment, the PPDO is a local pulling line, also called a sawtooth line, which is suitable for forehead lifting, fishtail lines, statute lines, superfluous flesh of mouth corners and the like. The sawtooth line is usually fixed while being pulled, and the operation is simple and flexible. The edge of the sawtooth line has a certain inclination, the tail end of the sawtooth line is sharp and is in a sawtooth shape, subcutaneous fascia tissue can be led in, each small tooth can be tightly attached to a certain specific part of internal soft tissue, and the sawtooth in opposite directions at two ends of the sawtooth line is utilized to lift the tissue with loose lower end upwards so as to correct the state of the loose face. The implanted zigzag lines can form wound tissues with scar structures, so that the edge parts of the zigzag lines are covered with a plurality of fibrous shells to form a fibrous envelope, thereby achieving the effects of tightening the skin and improving the sagging skin.
At present, clinically, a guide needle is one of necessary medical appliances for thread carving beauty operation. When the guide needle in the prior art is used for drawing the sawtooth line to route, the sawtooth line is easily cut off when the guide sawtooth line is reversely routed due to the fact that a needle hole of the guide needle is sharp, and the routing process and the line carving operation quality are affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a guide needle for a sawtooth line carved with smooth pinholes, when the guide needle pulls the sawtooth line to route, the sawtooth line is not easy to be cut off by the pinhole edge at the needle head of the guide needle, and the guide needle is convenient to pull the sawtooth line to carry out the positive and negative routing operation, and one end of the sawtooth line can be stably fixed at the pinhole, so that the quality of the line carving operation is convenient to ensure; meanwhile, the length of the needle body can be adjusted according to needs by the guide needle, the operation is convenient, and the complicated operation of replacing guide needles with different lengths is avoided.
The above technical purpose of the present invention can be achieved by the following technical solutions: a guide needle for a line carving sawtooth line with a smooth pinhole comprises a hollow needle body and a grab handle connected with the needle body, wherein one end part of the needle body is positioned in the grab handle; the end part of the needle body, which is far away from the grab handle, is a flat obtuse-angle needle head; the flat obtuse-angle needle head is provided with an oval needle hole, and the edge of the oval needle hole and the outer wall of the flat obtuse-angle needle head are in smooth polishing transition; a fixed needle core is arranged in the needle body, one end of the fixed needle core is close to the oval needle hole, and the other end of the fixed needle core is positioned in the grab handle; the end part of the needle body positioned in the grab handle is fixedly connected with a hollow connecting end; the end part of the fixed needle core extending out of the needle body is provided with a connector; two symmetrical slide rails are arranged on the inner wall of the grab handle, and the two ends of the hollow connecting end and the two ends of the connector are respectively connected with the two slide rails in a sliding manner; the wall surface of the grab handle is provided with a strip-shaped groove; the grab handle wall is provided with a first sliding button and a second sliding button which are positioned on the top surface of the strip-shaped groove, and the bottom ends of the first sliding button and the second sliding button are respectively fixedly connected with the top end of the hollow connecting end and the top end of the connecting head.
By adopting the technical scheme, when the needle is used, one end of the sawtooth line penetrates into the oval pinhole of the flat obtuse-angle needle head, then the second sliding button is pressed and pushed, so that the fixed needle core performs linear motion in the needle cylinder, the free end of the needle core moves into the oval pinhole, the sawtooth line is abutted and fixed on the inner side wall of the oval pinhole, and then the guide needle penetrating the sawtooth line is operated to perform wiring operation; the handle is convenient for an operator to hold the guide needle for operation; the sawtooth lines can be conveniently penetrated and fixed at the head end of the flat blunt-angle needle through the oval needle hole, so that the operation of routing is facilitated; the edge of the oval pinhole and the outer wall of the flat obtuse-angle needle head are in smooth polishing transition, so that the sawtooth line is prevented from being cut off by the edge of the oval pinhole in the process of drawing the sawtooth line by the guide needle to route, normal operation of routing operation is convenient to ensure, and the quality of an operation is ensured; the length of the needle body can be conveniently adjusted and controlled by operating the first sliding button according to needs through the hollow connecting end, the strip-shaped groove and the first sliding button; through the connector, the strip-shaped groove and the second sliding button, the second sliding button can be operated conveniently to control the fixed needle core to move in the needle cylinder, so that the end part of the fixed needle core can be operated conveniently to move to the oval needle hole to fix the sawtooth line on the inner side wall of the oval needle hole; when the guide needle draws the sawtooth line to route, the sawtooth line is not easily cut off by the edge of the needle hole at the needle head of the guide needle, the guide needle conveniently draws the sawtooth line to carry out the forward and reverse routing operation, one end of the sawtooth line can be stably fixed at the needle hole, and the quality of the line carving operation is conveniently ensured; meanwhile, the length of the needle body can be adjusted according to needs by the guide needle, the operation is convenient, and the complicated operation of replacing guide needles with different lengths is avoided.
The utility model discloses further set up to: the length of the fixed needle core is more than or equal to that of the needle body.
Through adopting above-mentioned technical scheme, the length of the length more than or equal to needle body of fixed nook closing member is convenient for realize that fixed nook closing member can remove to oval pinhole department in the needle body and will penetrate the sawtooth line of oval pinhole and fix.
The utility model discloses further set up to: the first sliding button and the second sliding button are respectively connected with the hollow connecting end and the connector through the pressing fixing mechanism; press down fixed establishment including a fixed section of thick bamboo, spliced pole, with a fixed section of thick bamboo inner wall bottom fixed connection's press spring, fixed fastener and fixed slot, the spliced pole is pegged graft inside a fixed section of thick bamboo, the spliced pole is located the inside tip of a fixed section of thick bamboo and presses spring top fixed connection, fixed fastener and spliced pole are located the outer lateral wall fixed connection of a fixed section of thick bamboo, fixed slot is fixed with the grab handle inner wall, just fixed slot is close to the bar groove.
By adopting the technical scheme, when the needle body length is adjusted by operating the first sliding button, an operator presses a finger on the surface of the first sliding button, so that the pressing spring is compressed, the connecting column moves downwards along with the compression of the pressing spring, and the fixing clamping piece on the side wall of the connecting column moves out of the fixing clamping groove, so that the operator can press and push the first sliding button to advance or retreat in the strip-shaped groove, and the adjustment of the needle body length is realized; when an operator fingers leave the surface of the first sliding button, the pressing force is lost, the pressing spring recovers the length before pressing, the elastic force of the pressing spring supports the connecting column to be upwards positioned, and the fixing clamping piece and the fixing clamping groove clamping piece on the side wall of the connecting column are driven, so that the length of the adjusted needle body can be fixed; in the process of controlling the fixed needle core to move in the needle body by operating the second sliding button, a finger is pressed on the surface of the second sliding button to apply pressing force, so that the pressing spring is compressed, the direction of the bottom end of the connecting column and the fixed cylinder is positioned, the fixed clamping piece is driven to be separated from the fixed clamping groove, an operator can press and push the second sliding button to move in the strip-shaped groove conveniently, and the fixed needle core is controlled to move in the needle body; when the operator finger leaves the second sliding button surface, the pressing force is lost, the pressing spring recovers the length before the pressing, the elastic supporting connecting column of the pressing spring is upwards located, and the fixing clamping piece and the fixing clamping groove clamping piece of the side wall of the connecting column are driven, so that the position of the fixed needle core after the moving can be fixed.
The utility model discloses further set up to: the grab handle is flat, and the outer side wall of the grab handle is provided with wavy bulges.
Through adopting above-mentioned technical scheme, the grab handle is the platykurtic, and the grab handle lateral wall has the wave form arch, and the operating personnel of being convenient for is difficult for the landing to the handheld of grab handle.
The utility model discloses further set up to: and anti-slip stripes are arranged on the surfaces of the first sliding button and the second sliding button.
Through adopting above-mentioned technical scheme, through anti-skidding stripe, be convenient for prevent that operating personnel from pressing to promote first slip button or second slip button and skid.
The utility model discloses further set up to: the outer wall of the grab handle is provided with scale marks close to the strip-shaped groove.
By adopting the technical scheme, the adjusting length of the needle body can be conveniently checked and determined in the process of adjusting the length of the needle body through the scale marks.
To sum up, the utility model discloses following beneficial effect has: the handle is convenient for an operator to hold the guide needle for operation; the sawtooth lines can be conveniently penetrated and fixed at the head end of the flat blunt-angle needle through the oval needle hole, so that the operation of routing is facilitated; the edge of the oval pinhole and the outer wall of the flat obtuse-angle needle head are in smooth polishing transition, so that the sawtooth line is prevented from being cut off by the edge of the oval pinhole in the process of drawing the sawtooth line by the guide needle to route, normal operation of routing operation is convenient to ensure, and the quality of an operation is ensured; the length of the needle body can be conveniently adjusted and controlled by operating the first sliding button according to needs through the hollow connecting end, the strip-shaped groove and the first sliding button; through the connector, the strip-shaped groove and the second sliding button, the second sliding button can be operated conveniently to control the fixed needle core to move in the needle cylinder, so that the end part of the fixed needle core can be operated conveniently to move to the oval needle hole to fix the sawtooth line on the inner side wall of the oval needle hole; when the guide needle draws the sawtooth line to route, the sawtooth line is not easily cut off by the edge of the needle hole at the needle head of the guide needle, the guide needle conveniently draws the sawtooth line to carry out the forward and reverse routing operation, one end of the sawtooth line can be stably fixed at the needle hole, and the quality of the line carving operation is conveniently ensured; meanwhile, the length of the needle body can be adjusted according to needs by the guide needle, the operation is convenient, and the complicated operation of replacing guide needles with different lengths is avoided.
Drawings
Fig. 1 is a schematic structural diagram in an embodiment of the present invention;
FIG. 2 is a schematic view of the inner structure of the handle in the embodiment of the present invention;
FIG. 3 is an enlarged view at A in FIG. 1;
fig. 4 is a schematic view of a connection structure between the pressing and fixing mechanism and the handle according to an embodiment of the present invention.
In the figure: 1. a needle body; 2. a handle; 3. a flat obtuse-angle needle; 4. an elliptical pinhole; 5. fixing the needle core; 6. a hollow connecting end; 7. a connector; 8. a slide rail; 9. a strip-shaped groove; 10. a first slide button; 11. a second slide button; 12. a fixed cylinder; 13. connecting columns; 14. a pressing spring; 15. fixing the clamping piece; 16. fixing the clamping groove; 17. a wavy bulge; 18. anti-skid stripes; 19. scale lines are marked.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1-4.
Example (b): a guide needle for a line-engraved jagged line with a smooth pinhole, as shown in fig. 1 to 4, comprises a hollow needle body 1 and a grip 2 connected with the needle body 1, wherein one end of the needle body 1 is positioned inside the grip 2. The end part of the needle body 1 far away from the grab handle 2 is a flat obtuse-angle needle head 3. An oval pinhole 4 is processed at the flat obtuse angle pinhead 3, and the edge of the oval pinhole 4 and the outer wall of the flat obtuse angle pinhead 3 are in smooth transition through polishing. A fixed needle core 5 is arranged in the needle body 1, one end part of the fixed needle core 5 is close to the oval needle hole 4, and the other end part of the fixed needle core 5 is positioned in the grab handle 2. The end part of the needle body 1 positioned in the grab handle 2 is fixedly connected with a hollow connecting end 6. The end part of the fixed needle core 5 extending out of the needle body 1 is fixedly connected with a connector 7. Two symmetrical slide rails 8 are fixed on the inner wall of the grab handle 2, and the two ends of the hollow connecting end 6 and the connecting head 7 are respectively connected with the two slide rails 8 in a sliding manner. The wall surface of the grab handle 2 is provided with a strip-shaped groove 9. The wall surface of the grab handle 2 is provided with a first sliding button 10 and a second sliding button 11 which are positioned on the top surface of the strip-shaped groove 9, and the bottom ends of the first sliding button 10 and the second sliding button 11 are respectively fixedly connected with the top ends of the hollow connecting end 6 and the connecting head 7.
In this embodiment, during the use, penetrate the oval pinhole 4 of flat obtuse angle syringe needle 3 with the one end of sawtooth line, then press and promote second slide button 11, make fixed nook closing member 5 carry out linear motion in the cylinder to make the free end of nook closing member move to oval pinhole 4 in, contradict the sawtooth line and be fixed in the inside wall of oval pinhole 4, then operate this leading needle who wears the sawtooth line and walk the line operation. The handle 2 is convenient for the operator to hold the guide needle for operation. Through oval pinhole 4, be convenient for penetrate the sawtooth line and be fixed in flat obtuse angle syringe needle 3 end to the operation of line of being convenient for walk. The edge of the elliptic pinhole 4 and the outer wall of the flat obtuse-angle needle head 3 are in smooth transition through polishing, so that the sawtooth line is prevented from being cut off by the edge of the elliptic pinhole 4 in the process of drawing the sawtooth line by the guide needle to route, normal operation of routing operation is convenient to ensure, and the quality of an operation is ensured. Through cavity connection end 6, bar groove 9 and first slide button 10, be convenient for as required, the length of the first slide button 10 regulation and control needle body 1 of operation. Through connector 7, bar groove 9 and second slide button 11, be convenient for operate second slide button 11 control fixed nook closing member 5 and move in the cylinder to be convenient for operate 5 tip removal of fixed nook closing member to oval pinhole 4 and go out the inside wall that is fixed in oval pinhole 4 with the sawtooth line. When the guide needle pulls the sawtooth line to route, the sawtooth line is not easily cut off by the edge of the needle hole at the needle head of the guide needle, the guide needle is convenient to pull the sawtooth line to carry out the forward and reverse routing operation, one end of the sawtooth line can be stably fixed at the needle hole, and the quality of the line carving operation is convenient to ensure. Meanwhile, the length of the needle body 1 can be adjusted according to needs, the operation is convenient, and the complicated operation of replacing guide needles with different lengths is avoided.
The length of the fixed needle core 5 is more than or equal to that of the needle body 1.
In this embodiment, the length of the fixed stylet 5 is greater than or equal to the length of the needle body 1, so that the fixed stylet 5 can move in the needle body 1 to the elliptical pinhole 4 to fix the sawtooth line penetrating the elliptical pinhole 4.
The first sliding button 10 and the second sliding button 11 are connected with the hollow connecting end 6 and the connecting head 7 respectively through a pressing fixing mechanism. Press fixed establishment including a fixed cylinder 12, spliced pole 13, with a fixed cylinder 12 inner wall bottom fixed connection's pressure spring 14, fixed fastener 15 and fixed slot 16, spliced pole 13 is pegged graft inside a fixed cylinder 12, spliced pole 13 is located the inside tip of a fixed cylinder 12 and presses spring 14 top fixed connection, fixed fastener 15 is located the outer lateral wall fixed connection of a fixed cylinder 12 with spliced pole 13, fixed slot 16 is fixed and 2 inner walls of grab handle, and fixed slot 16 is close to bar groove 9.
In the present embodiment, there are 2 fixed pressing mechanisms for the connection between the first sliding knob 10 and the hollow connection terminal 6 and the connection between the second sliding knob 11 and the connection head 7, respectively. The fixed clamping pieces 15 and the fixed clamping grooves 16 are divided into two groups, and the 2 fixed pressing mechanisms are 4 groups of fixed clamping pieces 15 and fixed clamping grooves 16. The fixed clamping groove 16 is a reversed concave clamping groove, the fixed clamping piece 15 comprises a connecting rod fixedly connected with the side wall of the connecting column 13 and a clamping piece positioned at the top end of the connecting rod, and the clamping piece is a convex clamping piece matched with the concave part of the reversed concave clamping groove. When the first slide button 10 of operation adjusts 1 length of needle body, operating personnel is through pressing the finger in first slide button 10 surface to make pressing spring 14 compress, spliced pole 13 is along with the downward displacement of the compression of pressing spring 14, and the fixed fastener 15 of spliced pole 13 lateral wall shifts out in by fixed slot 16, thereby is convenient for operating personnel to press and promote first slide button 10 and impel or retreat in bar groove 9, realizes the regulation to 1 length of needle body. When the operator finger leaves the surface of the first sliding button 10, the pressing force is lost, the pressing spring 14 recovers the length before the pressing, the elastic supporting connecting column 13 of the pressing spring 14 is upwards located, and the fixing clamping piece 15 and the fixing clamping groove 16 clamping piece on the side wall of the connecting column 13 are driven, so that the length of the adjusted needle body 1 can be fixed. In-process of operating 11 control fixed nook closing members 5 of second slide button in needle body 1 internal motion, through pressing the finger in 11 surfaces of second slide button, apply pressing force, make and press down spring 14 compression, the fixed 12 bottom directions of section of thick bamboo of spliced pole 13 village are located, drive fixed fastener 15 and fixed slot 16 and break away from, the operating personnel of being convenient for is pressing and is promoting second slide button 11 and remove in bar groove 9, realize the removal of the fixed nook closing member 5 of control in needle body 1. When the operator finger leaves the surface of the second sliding button 11, the pressing force is lost, the pressing spring 14 recovers the length before the pressing, the elastic supporting connecting column 13 of the pressing spring 14 is upwards located, and the fixing clamping piece 15 and the fixing clamping groove 16 clamping piece on the side wall of the connecting column 13 are driven, so that the position of the fixed stylet 5 after the moving can be fixed.
The grab handle 2 is flat, and the outer side wall of the grab handle 2 is processed with wavy bulges 17.
In this embodiment, the handle 2 is flat, and the outer side wall of the handle 2 has the wavy protrusions 17, so that the operator can stably hold the handle 2 conveniently, and the operator cannot easily slide off when holding the guide needle, thereby facilitating the operation.
The first slide button 10 and the second slide button 11 are surface-processed with anti-slip stripes 18.
In the present embodiment, the anti-slip stripe 18 facilitates preventing the operator from slipping when pushing the first slide button 10 or the second slide button 11.
The outer wall of the grab handle 2 is marked with a scale mark 19 close to the strip-shaped groove 9.
In this embodiment, the scale marks 19 facilitate the viewing and determination of the adjusted length of the needle body 1 during the adjustment of the length of the needle body 1.
The working principle is as follows: during the use, penetrate the oval pinhole 4 of flat obtuse angle syringe needle 3 with the one end of zigzag line, then press and promote second slide button 11, make fixed nook closing member 5 carry out linear motion in the cylinder to make the free end of nook closing member move to oval pinhole 4 in, contradict the zigzag line and be fixed in the inside wall of oval pinhole 4, then operate this guide pin who wears the zigzag line and walk the line operation. The handle 2 is convenient for the operator to hold the guide needle for operation. Through oval pinhole 4, be convenient for penetrate the sawtooth line and be fixed in flat obtuse angle syringe needle 3 end to the operation of line of being convenient for walk. The edge of the elliptic pinhole 4 and the outer wall of the flat obtuse-angle needle head 3 are in smooth transition through polishing, so that the sawtooth line is prevented from being cut off by the edge of the elliptic pinhole 4 in the process of drawing the sawtooth line by the guide needle to route, normal operation of routing operation is convenient to ensure, and the quality of an operation is ensured. Through cavity connection end 6, bar groove 9 and first slide button 10, be convenient for as required, the length of the first slide button 10 regulation and control needle body 1 of operation. Through connector 7, bar groove 9 and second slide button 11, be convenient for operate second slide button 11 control fixed nook closing member 5 and move in the cylinder to be convenient for operate 5 tip removal of fixed nook closing member to oval pinhole 4 and go out the inside wall that is fixed in oval pinhole 4 with the sawtooth line. When the guide needle pulls the sawtooth line to route, the sawtooth line is not easily cut off by the edge of the needle hole at the needle head of the guide needle, the guide needle is convenient to pull the sawtooth line to carry out the forward and reverse routing operation, one end of the sawtooth line can be stably fixed at the needle hole, and the quality of the line carving operation is convenient to ensure. Meanwhile, the length of the needle body 1 can be adjusted according to needs, the operation is convenient, and the complicated operation of replacing guide needles with different lengths is avoided.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (6)

1. A guide needle for a line carving sawtooth line with a smooth pinhole is characterized in that: the needle comprises a hollow needle body (1) and a grab handle (2) connected with the needle body (1), wherein one end part of the needle body (1) is positioned in the grab handle (2); the end part of the needle body (1) far away from the grab handle (2) is a flat obtuse-angle needle head (3); the flat obtuse-angle needle head (3) is provided with an oval needle hole (4), and the edge of the oval needle hole (4) and the outer wall of the flat obtuse-angle needle head (3) are in smooth transition through polishing; a fixed needle core (5) is arranged in the needle body (1), one end part of the fixed needle core (5) is close to the oval needle hole (4), and the other end part of the fixed needle core (5) is positioned in the grab handle (2); the end part of the needle body (1) positioned in the grab handle (2) is fixedly connected with a hollow connecting end (6); the end part of the fixed needle core (5) extending out of the needle body (1) is provided with a connector (7); two symmetrical slide rails (8) are arranged on the inner wall of the grab handle (2), and two ends of the hollow connecting end (6) and the connecting head (7) are respectively connected with the two slide rails (8) in a sliding manner; the wall surface of the grab handle (2) is provided with a strip-shaped groove (9); grab handle (2) wall is equipped with first slip button (10) and second slip button (11) that are located bar groove (9) top surface, the bottom of first slip button (10) and second slip button (11) respectively with the top fixed connection of cavity connection end (6) and connector (7).
2. The needle for the needle hole smooth thread carving sawtooth line as claimed in claim 1, wherein: the length of the fixed needle core (5) is more than or equal to that of the needle body (1).
3. The needle for the needle hole smooth thread carving sawtooth line as claimed in claim 1, wherein: the first sliding button (10) and the second sliding button (11) are respectively connected with the hollow connecting end head (6) and the connector (7) through the pressing fixing mechanism; the pressing fixing mechanism comprises a fixed cylinder (12), a connecting column (13), a pressing spring (14) fixedly connected with the bottom end of the inner wall of the fixed cylinder (12), a fixing clamping piece (15) and a fixing clamping groove (16), the connecting column (13) is inserted into the fixed cylinder (12), the connecting column (13) is located at the inner end of the fixed cylinder (12) and is fixedly connected with the top end of the pressing spring (14), the fixing clamping piece (15) and the connecting column (13) are located at the outer side wall of the fixed cylinder (12) and are fixedly connected with the inner wall of a grab handle (2), and the fixing clamping groove (16) is close to the strip-shaped groove (9).
4. The needle for the needle hole smooth thread carving sawtooth line as claimed in claim 1, wherein: the grab handle (2) is flat, and the outer side wall of the grab handle (2) is provided with a wavy bulge (17).
5. The needle for the needle hole smooth thread carving sawtooth line as claimed in claim 1, wherein: the surfaces of the first sliding button (10) and the second sliding button (11) are provided with anti-skid stripes (18).
6. The needle for the needle hole smooth thread carving sawtooth line as claimed in claim 1, wherein: the outer wall of the grab handle (2) is provided with scale marks (19) close to the strip-shaped groove (9).
CN202021184615.1U 2020-06-23 2020-06-23 Guide needle for line carving sawtooth line with smooth needle hole Expired - Fee Related CN212326480U (en)

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CN202021184615.1U CN212326480U (en) 2020-06-23 2020-06-23 Guide needle for line carving sawtooth line with smooth needle hole

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CN202021184615.1U CN212326480U (en) 2020-06-23 2020-06-23 Guide needle for line carving sawtooth line with smooth needle hole

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111671478A (en) * 2020-06-23 2020-09-18 四川大学华西医院 Guide needle for line carving sawtooth line with smooth needle hole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111671478A (en) * 2020-06-23 2020-09-18 四川大学华西医院 Guide needle for line carving sawtooth line with smooth needle hole

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