CN219700784U - PICC puts effective skin needle that expands - Google Patents
PICC puts effective skin needle that expands Download PDFInfo
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- CN219700784U CN219700784U CN202321332908.3U CN202321332908U CN219700784U CN 219700784 U CN219700784 U CN 219700784U CN 202321332908 U CN202321332908 U CN 202321332908U CN 219700784 U CN219700784 U CN 219700784U
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- skin
- expanding
- straight barrel
- primary
- ring sleeve
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- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 9
- 230000000740 bleeding effect Effects 0.000 description 7
- 210000003462 vein Anatomy 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 239000010985 leather Substances 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 238000002512 chemotherapy Methods 0.000 description 2
- 230000000916 dilatatory effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 206010073310 Occupational exposures Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 231100000675 occupational exposure Toxicity 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 208000001297 phlebitis Diseases 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 210000002620 vena cava superior Anatomy 0.000 description 1
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Abstract
The utility model belongs to the technical field of medical appliances, and particularly relates to a PICC (peripherally inserted central catheter) catheterization skin-expanding needle, which comprises a handheld part, a skin-expanding part and an adjusting ring sleeve sleeved on the skin-expanding part and used for adjusting the exposure length of the skin-expanding part; the skin expanding part comprises a primary skin expanding end, a secondary skin expanding end and a straight barrel part which are sequentially connected, the side of the straight barrel part close to the hand-held part is provided with a ring convex part, the ring convex part is provided with a cutting groove, and the side wall of the straight barrel part and the position of the cutting groove, which is positioned in the same straight line with the extending direction of the cutting groove, are provided with grooves; a torsion spring is arranged between the inner side of the adjusting ring sleeve and the straight barrel part, and a protruding part matched with the cutting groove and the groove is also arranged on the inner side of the adjusting ring sleeve; according to the utility model, the movable adjusting ring sleeve is arranged on the straight barrel part in the skin expanding part, and the extending length of the straight barrel part is adjusted by adjusting the position of the adjusting ring sleeve on the straight barrel part, so that the skin expanding needle can be suitable for patients with different skin looseness in clinic to use at different skin expanding depths.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and particularly relates to a skin expanding needle for PICC (peripherally inserted central catheter).
Background
PICC refers to catheters that are cannulated through the peripheral vein and deliver the catheter tip to the superior vena cava. The PICC technique uses the catheter to puncture from the vein of the peripheral arm, the catheter directly reaches the great vein close to the heart, the direct contact between the chemotherapy medicine and the vein of the arm is avoided, the blood flow rate of the great vein is high, the thinning chemotherapy medicine can be quickly flushed, the stimulation of the medicine to the blood vessel is greatly reduced, thus the vein of the upper limb can be effectively protected, the occurrence of phlebitis is reduced, the pain of a patient is lightened, and the life quality of the patient is improved. The method has the advantages of simple operation, high safety and long retention time, and is widely applied to clinic at present.
With the continuous improvement of the PICC catheterization method, in the existing clinical operation, the catheterization is usually performed by combining an improved Siebold technique under the guidance of vascular ultrasound, specifically, a guide wire is introduced after puncture, then a needle withdrawal and remaining guide wire is performed, and the skin surface is dilated by using a traditional skin dilating knife after local anesthesia of a puncture point, so that the following problems often occur in the skin dilating process:
(1) The traditional skin-expanding knife has the defects that the depth range and the depth are not well controlled when the skin is expanded, so that the bleeding amount of a patient is large when the patient is placed in a tube, and the influence on the patient suffering from hematopathy is large;
(2) Medical staff is most likely to be accidentally injured by sharp parts of the cutter body during operation of the traditional cutter body to cause occupational exposure, and the health of the medical staff is threatened;
(3) At present, except for using the traditional skin-expanding knife in clinic, the skin is expanded by using the inner sheath of the catheter instead of the skin-expanding tool.
Disclosure of Invention
The utility model aims to provide a PICC (peripherally inserted central catheter) catheterization skin-expanding needle so as to solve the problems in the background art.
The utility model realizes the above purpose through the following technical scheme:
the PICC puts the tube and expands the skin needle, including hand-held part, expands the skin part, cover is located and expands the skin part and is used for adjusting the adjusting ring cover that expands the exposed length of the skin part;
the skin expanding part comprises a primary skin expanding end, a secondary skin expanding end and a straight barrel part which are sequentially connected, the side of the straight barrel part, which is close to the hand-held part, is provided with a ring convex part, the ring convex part is provided with a cutting groove, and the side wall of the straight barrel part and the extending direction of the cutting groove are provided with grooves at the same straight line;
a torsion spring is arranged between the inner side of the adjusting ring sleeve and the straight barrel part, and a protruding part matched with the cutting groove and the groove is also arranged on the inner side of the adjusting ring sleeve.
The improved structure is characterized in that the primary skin expanding end and the secondary skin expanding end are of inverted cone structures, and the inner diameters of the secondary skin expanding end and the primary skin expanding end are gradually reduced along the extending direction of the straight cylinder part.
The further improvement is that the front end skin expansion surfaces of the primary skin expansion end and the secondary skin expansion end are inclined surfaces.
The improved structure is characterized in that the primary skin expansion end and the secondary skin expansion end are in threaded connection, a threaded part is arranged at the upper end of the primary skin expansion end, and an internal thread matched with the threaded part for installation is arranged on the inner side of the secondary skin expansion end.
The improvement is that the top of the straight cylinder part is fixedly connected with the handheld part by arranging a connecting part.
The further improvement is that the primary skin expanding end, the secondary skin expanding end and the outer side wall of the straight barrel part are provided with scale marks.
The improvement is that the outer surface of the hand-held part is uniformly provided with a plurality of bulges.
The utility model has the beneficial effects that:
1) According to the utility model, the movable adjusting ring sleeve is arranged on the straight barrel part in the skin expanding part, and the extending length of the straight barrel part is adjusted by adjusting the position of the adjusting ring sleeve on the straight barrel part, so that the skin expanding needle can be suitable for patients with different skin looseness in clinic to use at different skin expanding depths;
2) The primary skin expanding end and the secondary skin expanding end which are in threaded connection are arranged on the skin expanding part, the inner diameters of the two skin expanding ends are different, and whether the primary skin expanding end is dismounted or not is selected, so that the device is suitable for the subsequent placement of catheters with different inner diameters in a catheterization operation;
3) The utility model can conveniently judge the leather expansion depth in real time by arranging the scale marks on the straight barrel part, the primary leather expansion end and the secondary leather expansion end in the leather expansion part, and can also judge the bleeding position if bleeding occurs in the process;
4) According to the utility model, the skin expanding part with the cylindrical structure is used for replacing the traditional skin expanding knife in the prior art, so that the wound area is reduced, and the accidental injury of the knife body to medical staff can be avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the overall structure of the skin expanding portion of the present utility model;
FIG. 3 is a schematic view of a partial structure of a skin expanding portion in the present utility model;
FIG. 4 is a schematic view of the structure of the adjusting collar of the present utility model;
FIG. 5 is a schematic view of the structure of the secondary skin-expanding end in the skin-expanding part of the utility model;
FIG. 6 is a schematic structural view of a first-stage skin-expanding end of the skin-expanding portion of the present utility model.
In the figure: 1. a hand-held part; 2. a skin expanding part; 3. an adjusting ring sleeve; 11. a protrusion; 21. a first-stage skin expanding end; 22. a second-stage skin expanding end; 23. a straight tube portion; 24. scale marks; 25. a connection part; 26. a ring protrusion; 27. a groove; 28. grooving; 31. a protruding portion; 32. a torsion spring; 211. a threaded portion; 221. and (5) an internal thread.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, wherein it is to be understood that the following detailed description is for the purpose of further illustrating the utility model only and is not to be construed as limiting the scope of the utility model, as various insubstantial modifications and adaptations of the utility model to those skilled in the art can be made in light of the foregoing disclosure.
Example 1
As shown in fig. 1 to 6, the skin expanding needle for PICC catheter provided by the embodiment of the present utility model includes a hand-held portion 1, a skin expanding portion 2, and an adjusting ring sleeve 3 sleeved on the skin expanding portion 2 for adjusting the exposed length of the skin expanding portion 2. After the puncture needle is withdrawn in clinic, medical staff pushes the skin expanding part 2 by holding the hand holding part 1, and the skin expanding and expanding functions are completed once. In this embodiment, the skin expansion part has a cylindrical structure.
In this embodiment, the skin expanding portion 2 includes a primary skin expanding end 21, a secondary skin expanding end 22 and a straight tube portion 23 which are sequentially connected, the straight tube portion 23 is provided with a ring convex portion 26 near the hand-held portion 1 side, the ring convex portion 26 is provided with a slot 28, and a groove 27 is provided on the side wall of the straight tube portion 23 and in the same straight line with the extending direction of the slot 28; a torsion spring 32 is arranged between the inner side of the adjusting ring sleeve 3 and the straight barrel part 23, and a protruding part 31 matched with the cutting groove 28 and the groove 27 is also arranged on the inner side of the adjusting ring sleeve 3.
Referring to fig. 2-4, in this embodiment, the skin expanding portion 2 is found to be the protruding portion 31 clamped in the groove 27 in the original state, at this time, the torsion spring 32 stretches slightly, the exposed length of the straight tube portion 23 is longest, and the skin expanding depth of the patient aiming at clinical different skin looseness is different, so that the exposed length of the straight tube portion 23 is slightly straightened; in this embodiment, the inclined surface of the protruding portion 31 is smooth and excessive, after the adjusting collar 3 is held by hand and slid downward, the protruding portion 31 will disengage from the groove 27 until the protruding portion 31 passes through the slot 28, and then the adjusting collar 3 is rotated to make the protruding portion 31 abut against the lower end of the protruding portion 26, so as to complete the fixation of the adjusting collar 3, and in this process, the exposed length of the straight tube portion 23 is reduced; the process for adjusting the skin expansion depth of the skin expansion end 2 is suitable for patients with different clinical skin looseness to use when the skin expansion depth is different.
Further, the primary skin-expanding end 21 and the secondary skin-expanding end 22 are both in an inverted cone structure, and the inner diameters of the secondary skin-expanding end 22 and the primary skin-expanding end 21 are gradually reduced along the extending direction of the straight cylinder part 23.
Further, the front end skin expansion surfaces of the primary skin expansion end 21 and the secondary skin expansion end 22 are inclined surfaces.
Further, the primary skin-expanding end 21 and the secondary skin-expanding end 22 are in threaded connection, a threaded portion 211 is arranged at the upper end of the primary skin-expanding end 21, and an internal thread 221 matched with the threaded portion 211 is arranged on the inner side of the secondary skin-expanding end 22.
In this embodiment, with reference to fig. 2 to 4, the arrangement of the first-stage skin-expanding end 21 and the second-stage skin-expanding end 22 at the front section of the skin-expanding portion 2 forms a two-stage expansion structure, and the inner diameters of the second-stage skin-expanding end 22 and the first-stage skin-expanding end 21 gradually decrease along the extending direction of the straight barrel portion 23, which is favorable for the linear increment of skin-expanding force in the skin-expanding process, and realizes the purpose of two-stage expansion; in the embodiment, the diameter of the thinnest inner cylinder of the primary skin-expanding end 21 and the diameter of the thinnest inner cylinder of the secondary skin-expanding end 22 are different, and when the catheter sheath with larger inner cylinder diameter is used, the primary skin-expanding end 21 can be unscrewed by rotation, and the secondary skin-expanding end 22 can be directly used for skin expansion; in contrast, when using the catheter sheath with a smaller diameter inner cylinder, the primary sheath end 21 can be directly used for sheath expansion without being detached.
In this embodiment, the diameter of the inner cylinder of the primary skin-expanding end 21 ranges from 1.2mm to 1.8mm, and the diameter of the inner cylinder of the secondary skin-expanding end 22 ranges from 1.8mm to 2.5mm.
Further, the top of the straight tube portion 23 is fixedly connected to the hand-held portion 1 by a connecting portion 25.
Further, the outer side walls of the primary skin expanding end 21, the secondary skin expanding end 22 and the straight tube portion 23 are respectively provided with scale marks 24, and the scale marks 24 are arranged so as to judge the skin expanding depth in real time, and if bleeding occurs in the process, the bleeding position can be judged.
Further, a plurality of bulges 11 are uniformly arranged on the outer surface of the hand-held part 1, and the arrangement of the bulges 11 increases the friction force during holding and prevents the skin from sliding off in the skin expanding process.
Working principle: the utility model provides a PICC tube-placing skin-expanding needle, when in use, according to different requirements of tube placement, whether to detach a primary skin-expanding end 21 is selected according to the specification of a catheter sheath so as to meet the requirement that the inner diameter of the primary skin-expanding end 21 or a secondary skin-expanding end 22 is larger than the inner diameter of the catheter sheath used later, after the selection is finished, whether to finely adjust the position of an adjusting ring sleeve 3 on a straight barrel part 23 according to the age and skin looseness adaptability of a patient so as to adjust the exposure length of the straight barrel part 23 in the skin-expanding end 2, and in the skin-expanding process, scale marks 24 arranged on the outer side wall of the straight barrel part 23 and along the skin-expanding direction of the skin-expanding part 2 can be convenient for judging the skin-expanding depth in about real time, and if bleeding occurs in the process, the bleeding position can also be judged about.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (7)
1. PICC puts effective skin needle that expands, its characterized in that: comprises a hand-held part (1), a skin expanding part (2) and an adjusting ring sleeve (3) sleeved on the skin expanding part (2) for adjusting the exposure length of the skin expanding part (2);
the skin expanding part (2) comprises a primary skin expanding end (21), a secondary skin expanding end (22) and a straight barrel part (23) which are sequentially connected, the straight barrel part (23) is provided with a ring convex part (26) near the hand-held part (1), the ring convex part (26) is provided with a cutting groove (28), and the side wall of the straight barrel part (23) and the extending direction of the cutting groove (28) are provided with a groove (27) at the same straight line;
a torsion spring (32) is arranged between the inner side of the adjusting ring sleeve (3) and the straight barrel part (23), and a protruding part (31) matched with the cutting groove (28) and the groove (27) is also arranged on the inner side of the adjusting ring sleeve (3).
2. The PICC catheter sheath needle of claim 1, wherein: the primary skin expansion end (21) and the secondary skin expansion end (22) are of inverted cone structures, and the inner diameters of the secondary skin expansion end (22) and the primary skin expansion end (21) are gradually reduced along the extending direction of the straight cylinder part (23).
3. The PICC catheter sheath needle of claim 2, wherein: the front end skin expansion surfaces of the primary skin expansion end (21) and the secondary skin expansion end (22) are inclined surfaces.
4. The PICC catheter sheath needle of claim 1, wherein: the primary skin expansion end (21) is in threaded connection with the secondary skin expansion end (22), a threaded portion (211) is arranged at the upper end of the primary skin expansion end (21), and an internal thread (221) matched with the threaded portion (211) to be installed is arranged on the inner side of the secondary skin expansion end (22).
5. The PICC catheter sheath needle of claim 1, wherein: the top of the straight cylinder part (23) is fixedly connected with the handheld part (1) by arranging a connecting part (25).
6. The PICC catheter sheath needle of claim 1, wherein: the primary skin expanding end (21), the secondary skin expanding end (22) and the outer side wall of the straight cylinder part (23) are respectively provided with scale marks (24).
7. The PICC catheter sheath needle of claim 1, wherein: a plurality of bulges (11) are uniformly arranged on the outer surface of the hand-held part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321332908.3U CN219700784U (en) | 2023-05-30 | 2023-05-30 | PICC puts effective skin needle that expands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321332908.3U CN219700784U (en) | 2023-05-30 | 2023-05-30 | PICC puts effective skin needle that expands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219700784U true CN219700784U (en) | 2023-09-19 |
Family
ID=88002498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321332908.3U Active CN219700784U (en) | 2023-05-30 | 2023-05-30 | PICC puts effective skin needle that expands |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219700784U (en) |
-
2023
- 2023-05-30 CN CN202321332908.3U patent/CN219700784U/en active Active
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