CN216725481U - A poling needle for drainage tube threading - Google Patents

Abstract

The utility model relates to a medical apparatus technical field specifically is a poling needle for drainage tube threading, and this poling needle includes needle body, needle point and backshank, the needle point sets up the one end of needle body, the backshank sets up the other end of needle body, the backshank includes extension and kink, the one end of extension with the needle body is connected, the other end with the kink is connected, the kink to one side recurvation and the fixing in extension place in order to form the through wires hole on the extension, just the extension with the diameter of kink is the same. The utility model discloses, return through the kink and fix and make on the extension and form the through wires hole between the two, and the diameter of kink and extension is unanimous, not only conveniently processes the through wires hole, makes the wall thickness of through wires hole department more even moreover.

Description

A poling needle for drainage tube threading

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a threading needle for threading a drainage tube.

Background

The drainage tube is used for drainage in clinical surgery, and guides pus, blood and liquid accumulated in human tissues or body cavities to the outside of the body, thereby preventing postoperative infection and promoting wound healing. The through wires hole of present poling needle uses the punching press mode of punching to process, but the processing mode that the punching press was punched leads to the wall thickness of through wires hole department inhomogeneous easily, leads to the through wires hole to break off at the in-process of threading easily, and the yields of poling needle is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a poling needle for drainage tube threading aims at solving the lateral wall of the pinhole department of prior art poling needle and is not enough even, easy cracked technical problem of pinhole department.

In order to achieve the above object, the utility model provides a threading needle for drainage tube threading, this threading needle include needle body, needle point and backshank, the needle point sets up the one end of needle body, the backshank sets up the other end of needle body, the backshank includes extension and kink, the one end of extension with the needle body is connected, the other end with the kink is connected, the kink to one side recurved and is fixed in order to form the through wires hole on the extension, just the extension with the diameter of kink is the same. The threading hole is conveniently processed, and the wall thickness of the threading hole is ensured to be uniform.

Preferably, the diameters of the extension portion and the bent portion are the same.

Preferably, the diameter φ 1 of the needle body is larger than the diameter φ 2 of the bending part. The strength and the rigidity of the needle body are improved.

Preferably, a connecting portion is further disposed between the needle body and the extending portion, one end of the connecting portion is connected to the needle body, the other end of the connecting portion is connected to the extending portion, the diameter of the connecting portion is gradually reduced from the end connected to the needle body to the end connected to the extending portion, the diameter of the connecting portion to the needle body is the same as that of the needle body, and the diameter of the connecting portion to the extending portion is the same as that of the extending portion. The needle body and the needle tail are connected more softly.

Preferably, the length H1 of the connection part is 10mm to 30 mm.

Preferably, the diameter phi 1 of the needle body is 0.35 mm-0.55 mm. Ensure that the puncture needle can be inserted into the drainage tube.

Preferably, the width W1 at the threading hole is less than or equal to 1.5 mm.

Preferably, the width W2 of the threading hole is more than or equal to 0.2 mm.

Preferably, the total length H2 of the puncture needle is more than or equal to 150mm and less than or equal to H2 and less than or equal to 500 mm.

Preferably, the needle tip is a circular arc needle tip. Ensure that the needle tip can not puncture the drainage tube and hurt the staff.

The utility model discloses a poling needle for drainage tube threading has following beneficial effect: 1. the tail diameter of the tube threading needle is reduced, the inner diameter of the thread hole is increased under the condition that the outer diameter of the needle hole is not changed, and a thread can conveniently pass through the thread hole and be fixed on the tube threading needle; 2. the threading hole is convenient to process, and the wall thickness of the threading hole is uniform.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of the needle for puncturing tube of the present invention;

fig. 2 is a partially enlarged view of a portion a of fig. 1.

In the drawings: 1-needle body, 2-needle point, 3-needle tail, 31-extension part, 32-bending part, 4-connecting part and 5-threading hole.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

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 efforts belong to the protection scope of the present invention.

It should be noted that, if the present invention relates to a directional indication, the directional indication is only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 2, a needle for threading a drainage tube, the needle for threading the drainage tube comprises a needle body 1, a needle point 2 and a needle tail 3, the needle point 2 is arranged at one end of the needle body 1, the needle tail 3 is arranged at the other end of the needle body 1, the needle tail 3 comprises an extension portion 31 and a bending portion 32, one end of the extension portion 31 is connected with the needle body 1, the other end of the extension portion is connected with the bending portion 32, the bending portion 32 is bent back to one side of the extension portion 31 and fixed on the extension portion 31 to form a threading hole 5, and the diameter of the extension portion 31 is the same as that of the bending portion 32.

Further, the diameters of the extension portion 31 and the bent portion 32 are the same.

The threading hole of the existing threading needle is punched by punching, in order to pass through a threading hole (not shown in the figure) on an externally connected drainage tube, the thickest part of the threading needle, namely the maximum width of the threading hole 5 can only be smaller or slightly larger than the diameter of the threading hole at most, and the diameter of the threading hole on the drainage tube is fixed to be 0.8 mm-1.2 mm, while the threading hole 5 of the traditional threading needle is processed by a processing mode of punching out the hole, under the condition that the outer diameter of the threading hole 5 part is not changed, if the size of the threading hole 5 is to be enlarged, the size of the threading hole 5 can only be enlarged by reducing the wall thickness of the threading hole 5, and the processing mode of punching and forming the hole has high requirement on the processing precision, particularly for a part with a smaller size, if the threading needle is displaced in the processing process, the position of the punched threading hole is not correct, the wall thickness at the threading hole is uneven, so that the tube threading needle is easy to break in the threading process, and the produced tube threading needle becomes waste. The processing difficulty of the processing mode of punching press is big, requires the precision high, and the rejection rate is high. In order to improve the yield of the needle for threading, the diameter of the needle tail 3 is reduced, the needle tail 3 is divided into an extending portion 31 and a bending portion 32, the bending portion 32 is bent and welded on the extending portion 31 to form the threading hole 5, and the diameters of the extending portion 31 and the bending portion 32 are the same, that is, the extending portion 31 and the bending portion 32 are used as the wall thickness of the threading hole 5. The diameters of the extension part 31 and the bending part 32 are the same, so that the processing steps are reduced, and the processing efficiency is improved. Through the diameter that changes the poling needle, rethread bending welding's mode forms through wires hole 5, just can control the outer wall thickness of through wires hole 5 department through the diameter of control backshank 3, produces the wall thickness and evenly wears the poling needle. Compare in the processing mode of punching press pore-forming, this processing mode has reduced the processing degree of difficulty to the wall thickness of 5 departments of interlude hole, convenient processing to the yields of improvement needle.

Further, the diameter phi 1 of the needle body 1 is larger than the diameter phi 2 of the bent part 32.

Specifically, according to the above-mentioned threading needle, the width W2 of the threading hole 5 is enlarged without enlarging the outer diameter of the threading hole 5, so that the thread can be fixed to the threading needle through the threading hole 5. The diameter of the tube penetrating needle can be set thin, the diameter of the tube penetrating needle becomes thin, the strength and the rigidity of the tube penetrating needle are reduced, the tube penetrating needle is easy to bend under the condition of external force when being threaded in a drainage tube, and even the tube penetrating needle is broken, so that the threading efficiency is reduced. Therefore, the diameter phi 1 of the needle body 1 is increased, the strength and the rigidity of the needle body 1 are improved, the tube penetrating needle is not easy to bend or break, the service life of the tube penetrating needle is prolonged, and the needle tail 3 is not stressed too much because the main stressed parts of the tube penetrating needle during threading in the drainage tube are the needle body 1 and the needle point 2, so that the needle tail can continuously keep a smaller diameter to achieve the purpose of expanding the width of the threading hole 5 on the premise of not expanding the lateral outer diameter of the threading hole 5, and meanwhile, the strength and the rigidity of the needle body are improved and the service life of the tube penetrating needle is prolonged by increasing the diameter phi 1 of the needle body 1.

Further, a connecting portion 4 is further arranged between the needle body 1 and the extending portion 31, one end of the connecting portion 4 is connected with the needle body 1, the other end of the connecting portion 4 is connected with the extending portion 31, the diameter of the connecting portion 4 is gradually reduced from the end connected with the needle body 1 to the end connected with the extending portion 31, the diameter of the connecting portion 4 and the needle body 1 is the same as that of the needle body 1, and the diameter of the connecting portion 4 and the extending portion 31 is the same as that of the extending portion 31.

Specifically, a connecting part 4 is provided, the needle body 1 and the needle tail 3 are connected through the connecting part 4, the diameter of the connecting part 4 and the needle body 1 is the same as that of the needle body 1, the diameter of the connecting part 4 and the extending part 31 is the same as that of the extending part 31, and the diameter of the connecting part 4 near the needle body 1 is uniformly reduced to the diameter near the extending part 31. Set up convenient processing like this, the processing of needle tail 3 only need use processing equipment to stretch the one end that needle body 1 is close to needle tail 3, just can stretch out connecting portion 4, accomplishes the processing to connecting portion 4. And then one end of the connecting part 4 far away from the needle body 1 is stretched to form a needle tail 3 with the diameter phi 2, so that the processing of the needle tail 3 is completed, and the processing is simple.

Further, the length H1 of the connection portion 4 is 10mm to 30 mm.

Specifically, the length H1 of the connecting part 4 is set to be 10 mm-30 mm, the length of the connecting part 4 in the range is moderate, namely, the strength of the connecting part 4 cannot be reduced due to the overlong length, when the length H1 of the connecting part 4 is less than 10mm, the length of the connecting part 4 is too short, so that the diameter change of two ends of the connecting part 4 is too large during production and processing, the required processing precision is too high, and the processing difficulty is high. And when the length H1 of connecting portion 4 is greater than 30mm, the length of connecting portion 4 overlength leads to the intensity of connecting portion 4 to reduce, and connecting portion 4 is easy to take place buckling deformation in the in-process of follow-up threading.

Furthermore, the diameter phi 1 of the needle body 1 is 0.35 mm-0.55 mm.

Specifically, the diameter of the needle body 1 is 0.35 mm-0.55 mm, and the diameter of the needle body 1 is smaller than that of the thread hole on the drainage tube because the diameter of the thread hole on the drainage tube is 0.8 mm-1.2 mm. The diameter of the needle body 1 is set to be within the range of 0.35 mm-0.55 mm, when the diameter of the needle body 1 is less than 0.35mm, the diameter of the tube penetrating needle is too small, the tube penetrating needle is inconvenient to process, the diameter of the needle body 1 is too small, the sharpness of the needle point 2 can be improved, even if the needle point 2 is subjected to rounding treatment to enable the needle point 2 to be arc-shaped, the needle point 2 can easily puncture the tube wall of a drainage tube, and the drainage tube is scrapped. When the diameter of the needle body 1 is larger than 0.55mm, the diameter of the needle body 1 is too large, which is inconvenient for subsequent processing of the connecting part 4, so the diameter of the needle body 1 is set to be within 0.35 mm-0.55 mm. The diameter of the needle body 1 is smaller than that of a thread hole on the drainage tube, so that the threading of the needle for threading the tube in the drainage tube is facilitated, and the needle body 1 with the diameter range of 0.35 mm-0.55 mm is convenient for producing and processing the needle for threading the tube.

Furthermore, the width W1 of the threading hole 5 is less than or equal to 1.5 mm.

The diameter of the thread hole on the guide tube is 0.8 mm-1.2 mm, the guide tube is made of TPU material, so the guide tube has certain elasticity, the thickest part of the threading needle, namely the outer diameter of the threading hole 5 can be smaller than or slightly larger than the diameter of the thread hole on the drainage tube, and the width W1 of the threading hole 5 is set to be less than or equal to 1.5 mm. If the width W1 of the threading hole 5 is more than 1.5mm, the threading needle can damage the thread hole on the drainage tube when passing through the thread hole on the drainage tube, and the drainage tube is scrapped. Specifically, when the width of the wire hole on the draft tube is 1.2mm, W1 may be 1.5 mm; when the width of the wire hole on the flow guide pipe is 0.8mm, W1 can be 1.0 mm.

Furthermore, the width W2 of the threading hole 5 is more than or equal to 0.2 mm.

The thread for threading the drainage tube has an industry standard, the diameter of the thread is 0.18mm or 0.23mm, so the width W2 of the threading hole is more than or equal to 0.2mm, and the thread for threading the drainage tube can pass through the threading hole 5. Specifically, when the diameter of the wire used is 0.18mm, W2 may be 0.25 mm; when a wire of 0.23mm diameter is used, W2 may be 0.3 mm. As shown in fig. 2, since the diameter of the bent portion 32 is Φ 2 and the diameter of the bent portion 32 is the same as that of the extending portion 31, the condition that W1 is W2+2 × Φ 2 is satisfied; since W1 and W2 need to satisfy the above numerical conditions, the diameter Φ 2 of the bent portion 32 satisfies W1 ═ W2+2 × Φ 2 under the numerical conditions of W1 and W2.

Further, the total length H2 of the puncture needle is more than or equal to 150mm and less than or equal to H2 and less than or equal to 500 mm.

Specifically, when the total length H2 of the tube threading needle is less than 150mm, the total length of the tube threading needle is too short, when the used drainage tube is long, the distance between the thread holes on the drainage tube is long, and when the tube threading needle with the total length H2 less than 150mm is used for threading, after the whole tube threading needle enters the inside of the drainage tube, the needle head of the tube threading needle cannot penetrate out of the thread holes, so that the tube threading needle is inconvenient to thread in the drainage tube. When the total length H2 of the tube threading needle is more than 500mm, the total length of the tube threading needle is too long, although the requirement of threading is met, when the tube threading needle is too long, the operation of workers is inconvenient, and the human body is easily injured by mistake. And when the total length H2 of the puncture needle is more than or equal to 150mm and less than or equal to H2 and less than or equal to 500mm, the puncture needle can meet the needs of the operator for the puncture on most types of drainage tubes and is convenient for the operator to thread.

Further, the needle tip 2 is a circular arc needle tip.

Specifically, the needle for puncturing is convenient for threading in the drainage tube, the needle tip 2 of the conventional needle for puncturing is usually set to be thin so as to be convenient for inserting into the drainage tube, while the drainage tube is generally made of TPU material, and the TPU material is easily punctured when contacting a sharp object. And because the drainage tube is longer, when the puncture needle is used for threading, the needle point 2 inevitably touches the tube wall of the drainage tube, and the sharp needle point 2 easily punctures the drainage tube, so that the drainage tube is scrapped. And the sharp needlepoint 2 is easy to stab the hand of the worker when puncturing the drainage tube, so that the worker is injured. So set up needle point 2 into circular-arc, reduce the sharpness of needle point 2, make the puncture needle can not puncture the drainage tube when the threading, also can not stab staff's hand, reduce the disability rate of drainage tube, protect staff's personal safety simultaneously.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. The utility model provides a poling needle for drainage tube threading, its characterized in that, this poling needle includes needle body (1), needle point (2) and backshank (3), needle point (2) set up the one end of needle body (1), backshank (3) set up the other end of needle body (1), backshank (3) are including extension (31) and kink (32), the one end of extension (31) with needle body (1) is connected, the other end with kink (32) are connected, kink (32) to extension (31) place one side is turned back and is fixed in order to form through wires hole (5) on extension (31).

2. The needle for threading a drain according to claim 1, characterized in that the diameter of the extension (31) and the bending (32) is the same.

3. A threading needle for a drain according to claim 1, characterized in that the diameter Φ 1 of the needle body (1) is larger than the diameter Φ 2 of the bending part (32).

4. A threading needle for a drainage tube according to claim 3 characterized in that a connecting part (4) is further provided between the needle body (1) and the extension part (31), one end of the connecting part (4) is connected with the needle body (1), the other end of the connecting part (4) is connected with the extension part (31), the diameter of the connecting part (4) is gradually reduced from the end connected with the needle body (1) to the end connected with the extension part (31), the diameter of the connecting part (4) and the needle body (1) is the same as the needle body (1), and the diameter of the connecting part (4) and the extension part (31) is the same as the extension part (31).

5. A puncture needle for threading a drainage tube according to claim 4, characterized in that the length H1 of the connection part (4) is 10mm to 30 mm.

6. A threading needle for a drainage tube according to claim 3, characterized in that the diameter Φ 1 of the needle body (1) is 0.35 mm-0.55 mm.

7. A threading needle for threading a drainage tube according to claim 1, characterized in that the width W1 of the needle tail (3) at the threading hole (5) is less than or equal to 1.5 mm.

8. A threading needle for a drainage tube threading according to claim 7 characterized in that the width W2 of said threading hole (5) is 0.2mm or more.

9. The needle of claim 1 wherein the total length H2 of the needle is 150mm H2 mm 500 mm.

10. A threading needle for a drainage tube according to claim 1, characterized in that the needle tip (2) is a circular arc tip.

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