CN210750637U - Safety sheath for intravenous infusion needle - Google Patents
Safety sheath for intravenous infusion needle Download PDFInfo
- Publication number
- CN210750637U CN210750637U CN201821591044.6U CN201821591044U CN210750637U CN 210750637 U CN210750637 U CN 210750637U CN 201821591044 U CN201821591044 U CN 201821591044U CN 210750637 U CN210750637 U CN 210750637U
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- Prior art keywords
- needle
- sleeve
- boss
- guide groove
- handle
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- 238000001802 infusion Methods 0.000 title claims abstract description 32
- 238000001990 intravenous administration Methods 0.000 title claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 abstract description 19
- 239000010959 steel Substances 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 4
- 238000001467 acupuncture Methods 0.000 abstract description 3
- 206010064091 Iatrogenic infection Diseases 0.000 abstract description 2
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 210000001145 finger joint Anatomy 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 206010052428 Wound Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005541 medical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a safety sheath for intravenous infusion needle, which has simple structure and convenient operation, and can quickly put the infusion needle into the sheath, thereby avoiding the puncture steel from being used for acupuncture of medical personnel and iatrogenic infection caused by acupuncture injury; the needle handle is guided to automatically identify the direction of the second guide groove by taking the inclined plane as an inlet of the single-wing transfusion needle; through the arrangement of the handle and the first guide groove, the needle handle is conveniently guided between the finger joints in the using process; the first boss is utilized to press the needle head of the puncture steel needle to the end A, and the second boss lifts the tail part of the needle handle to the end B, so that the needle head of the puncture steel needle is further pressed to the end A, and the needle head of the puncture steel needle is prevented from being exposed; a limit bayonet is formed between the limit bosses, and the needle point is prevented from being separated by the clamping column needle handle.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to a safety sheath for intravenous infusion needle.
Background
The intravenous infusion is a method for remotely infusing a large amount of sterile liquid, electrolyte and medicine into a human body from veins by utilizing atmospheric pressure and hydrostatic pressure, the intravenous infusion is a medical measure which is commonly used in clinic, and an intravenous infusion needle is required for the intravenous infusion.
The intravenous infusion needle is fixedly bonded with a needle handle by adopting a stainless steel needle tube, the rear part of the needle handle is connected with a plastic hose, a needle seat is connected behind the plastic hose, a protective cap is arranged outside the needle tube and used for preventing the intravenous infusion needle from keeping a sterile state before use, medical staff removes the protective cap when using the intravenous infusion needle and then carries out intravenous puncture infusion on a human body, and after the infusion is finished, the protective cap is thin and long and is easy to lose, and the inner diameter is small, so that the needle head is difficult to be sleeved with the protective cap again. The process that medical personnel will make used venous transfusion syringe needle insert in the protective sheath exposes the venous transfusion syringe needle outside very easily, and the venous transfusion syringe needle can cause the acupuncture injury to medical personnel to cause the risk of disease transmission and infection. The problems of inconvenient use and complex operation of the existing protective sleeve for the intravenous infusion needle generally exist
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a safety sheath for an intravenous infusion needle, which has the characteristics of simple operation and simple structure.
The utility model provides a technical scheme of above-mentioned problem does: a safety sheath for an intravenous infusion needle comprises a single-wing infusion needle, an infusion catheter and a protective sheath;
the single-wing transfusion needle is positioned in the protective sleeve, and can axially move in the protective sleeve;
the protective sleeve comprises a sleeve and a handle; the handle is of a hollow structure and comprises a surface A, a surface B, a surface C, a surface D, a surface E and a surface F, wherein the surface A and the surface B are planes and are mirror images from top to bottom; the surface C and the surface D are both arc surfaces and are respectively positioned on the front side and the rear side of the surface A; the plane E and the plane F are both planes and are respectively positioned on the left side and the right side of the plane A;
the surface D is provided with a first guide groove;
the surface A and the surface B are both provided with arc-shaped bulges, the central axes of the arc-shaped bulges are both coincided with the central axis of the sleeve, and the arc-shaped bulges are respectively communicated with the surface A and the surface B; a circular hole is formed in the surface F, and the central axis of the circular hole is coincided with the central axis of the arc-shaped protrusion; the circular hole is communicated with the sleeve and the first guide groove; openings are formed in the upper side and the lower side of the round hole and communicated with the round hole, and the depth of each opening extends along the arc-shaped protruding direction;
the sleeve is of a hollow cylindrical structure, the central axis of the sleeve is vertical to the axis of the handle, one end of the sleeve is connected with the E surface to form an integral structure, the other end of the sleeve is provided with an inclined surface, the inclined surface inclines towards the D surface, and the inclined surface comprises an A end and a B end; a second guide groove is formed in the cylindrical surface of the sleeve and is parallel to the central axis of the sleeve, one end of the second guide groove is communicated with the first guide groove, and the other end of the second guide groove is communicated with the end B; the second guide groove is along the central axis direction of the sleeve
One end of the second guide groove, which is close to the handle, is provided with a limiting boss, the limiting boss is respectively positioned on the upper side and the lower side of the second guide groove, a limiting bayonet is formed between the two limiting bosses, and the width H1 of the limiting bayonet is gradually reduced along the X direction.
Further, the central angle subtended by the first guide groove is 60-150 degrees.
Further, the first guide groove and the second guide groove are in a straight line.
Furthermore, one end of the sleeve close to the handle is provided with a first boss, the first boss is positioned on the inner cylindrical surface of the sleeve, the first boss is respectively distributed on the upper side and the lower side of the second guide groove, the cross section of the first boss is wedge-shaped, and the height H2 of the first boss is gradually increased along the X direction.
Furthermore, a second boss is arranged in the arc-shaped protrusion, the second boss is located at the intersection of the opening and the circular hole, and the height H3 of the second boss is gradually increased along the X direction.
Furthermore, the single-wing transfusion needle is communicated with the transfusion conduit.
The utility model discloses beneficial effect has: the utility model has simple structure and convenient operation, can quickly put the transfusion needle into the protective sleeve, and avoids the puncture steel from needling the medical personnel and iatrogenic infection caused by the puncture wound; the needle handle is guided to automatically identify the direction of the second guide groove by taking the inclined plane as an inlet of the single-wing transfusion needle; through the arrangement of the handle and the first guide groove, the needle handle is conveniently guided between the finger joints in the using process; the first boss is utilized to press the needle head of the puncture steel needle to the end A, and the second boss lifts the tail part of the needle handle to the end B, so that the needle head of the puncture steel needle is further pressed to the end A, and the needle head of the puncture steel needle is prevented from being exposed; a limit bayonet is formed between the limit bosses, and the needle point is prevented from being separated by the clamping column needle handle.
Drawings
Fig. 1 is a perspective view of the protective sheath of the present invention.
Fig. 2 is a top view of the protective sheath of the present invention.
Fig. 3 is a rear view of the protective cover of the present invention.
Fig. 4 is a cross-sectional view of the protective sheath of the present invention.
FIG. 5 is a schematic view of the structure of the single-wing transfusion needle of the present invention.
In the figure: 1-single-wing infusion needle, 2-infusion catheter, 3-protective sleeve, 4-catheter connector, 5-needle handle, 6-puncture steel needle, 6-cannula, 7-handle, 8-A surface, 9-B surface, 10-C surface, 11-D surface, 12-E surface, 13-F surface, 14-first guide groove, 15-arc protrusion, 16-round hole, 17-opening, 18-inclined surface, 19-A end, 20-B end, 21-second guide groove, 22-limiting boss, 23-limiting bayonet, 24-first boss and 25-second boss.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
A safety sheath for an intravenous infusion needle comprises a single-wing infusion needle 1, an infusion catheter 2 and a protective sleeve 3;
the single-wing transfusion needle 1 comprises a catheter connector 4, a needle handle 5 and a puncture steel needle 6, one end of the catheter connector 4 is communicated with a transfusion catheter 2, the other end of the catheter connector is communicated with the puncture steel needle 6, and the needle handle 5 is fixed on the side surface of the catheter connector 4;
the single-wing transfusion needle 1 is inserted into the protective sleeve 3, and the single-wing transfusion needle 1 can axially move in the protective sleeve 3;
the protective sleeve 3 comprises a sleeve 26 and a handle 7;
the handle 7 is of a hollow structure, the handle 7 comprises a surface A8, a surface B9, a surface C10, a surface D11, a surface E12 and a surface F13, the surface A8 and the surface B9 are both planes and are mirror images from top to bottom; the C surface 10 and the D surface 11 are both arc surfaces, and the C surface 10 and the D surface 11 are respectively positioned at the front side and the rear side of the A surface 8; the E surface 12 and the F surface 13 are both planes, the E surface 12 and the F surface 13 are respectively positioned at the left side and the right side of the A surface 8, and the A surface 8, the B surface 9, the C surface 10, the D surface 11, the E surface 12 and the F surface 13 are connected into an integral structure;
the D surface 11 is provided with a first guide groove 14, and the central angle subtended by the first guide groove 14 is 90 DEG
The surface A8 and the surface B9 are both provided with arc-shaped bulges 15, the central axes of the arc-shaped bulges 15 are both superposed with the central axis of the sleeve 26, and the arc-shaped bulges 15 are respectively communicated with the surface A8 and the surface B9; a circular hole 16 is arranged on the surface F13, and the central axis of the circular hole 16 is superposed with the central axis of the arc-shaped bulge 15; the circular hole 16 is communicated with the sleeve 26 and the first guide groove 2114; openings 17 are formed in the upper side and the lower side of the round hole 16, the openings 17 are communicated with the round hole 16, and the depth of each opening 17 extends along the direction of the arc-shaped protrusion 15; the arrangement of the opening 17 reduces the resistance of pulling the puncture steel needle 6 during operation, thereby facilitating the operation;
the sleeve 26 is a hollow cylindrical structure, the central axis of the sleeve 26 is vertical to the axis of the handle 7, one end of the sleeve 26 is connected with the E surface 12 to form an integral structure, the other end of the sleeve 26 is provided with an inclined surface 18, the inclined surface 18 inclines towards the D surface 11, and the inclined surface 18 comprises an A end 19 and a B end 20; a second guide groove 21 is arranged on the cylindrical surface of the sleeve 26, the second guide groove 21 is parallel to the central axis of the sleeve 26, one end of the second guide groove 21 is communicated with the first guide groove 14, the other end of the second guide groove 21 is communicated with the end B20, and the first guide groove 14 and the second guide groove 21 are on the same straight line; the protective sheath 3 is symmetrical about the first guide groove 14;
the single-wing transfusion needle 1 penetrates into the protective sleeve 3 from the inclined surface 18, and the inlet guide needle handle 5 with the inclined surface 18 automatically identifies the direction of the second guide groove; the linear guide groove is convenient for leading in the petiole and is convenient to operate;
one end of the second guide groove 21 close to the handle 7 is provided with a limiting boss 22, the limiting boss 22 is connected with the sleeve 26 to form an integral structure, the limiting bosses 22 are respectively positioned at the upper side and the lower side of the second guide groove 21, a limiting bayonet 23 is formed between the two limiting bosses 22, the width H1 of the limiting bayonet 23 is gradually reduced along the X direction, and the limiting bayonet 23 clamps the needle handle 5 to prevent the puncture steel needle 6 from being separated;
one end of the sleeve 26 close to the handle 7 is provided with a first boss 24, the first boss 24 is connected with the sleeve 26 to form an integral structure, the first boss 24 is positioned on the inner cylindrical surface of the sleeve 26, the first boss 24 is respectively distributed on the upper side and the lower side of the second guide groove 21, the section of the first boss 24 is wedge-shaped, and the height H2 of the first boss 24 is gradually increased along the X direction; the first boss 24 presses the needle head of the puncture steel needle 6 to the A end 19, so that the needle head of the puncture steel needle 6 is prevented from being exposed;
a second boss 25 is arranged in the arc-shaped protrusion 15, the second boss 25 is positioned at the intersection of the opening 17 and the circular hole 16, and the height H3 of the second boss 25 is gradually increased along the X direction; the second boss 25 lifts the tail part of the needle handle 5 towards the B end 20, so that the needle head of the puncture steel needle 6 is pressed towards the A end 19, and the needle head of the puncture steel needle 6 is prevented from being exposed.
After the transfusion of the patient is finished, the medical staff takes the puncture steel needle 6 out of the patient body and cuts off the transfusion catheter 2; then the single-wing transfusion needle 1 penetrates into the protective sleeve 3, the bottom of the single-wing transfusion needle 1 enters the sleeve 26 from the inclined surface 18, and the needle handle 5 is guided by the inclined surface 18 to automatically identify the direction of the second guide groove 21; the needle handle 5 enters the second guide groove 21, moves along the linear guide groove, passes through the limiting bayonet 23, the needle handle 5 is guided into the first guide groove 14, the needle handle 5 is clamped through the limiting boss 22, the first boss 24 and the second boss 25, the needle head of the puncture steel needle 6 is prevented from being exposed, and the purpose of protecting medical personnel is achieved.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.
Claims (6)
1. A safety sheath for an intravenous infusion needle is characterized by comprising a single-wing infusion needle, an infusion catheter and a protective sheath;
the single-wing transfusion needle is positioned in the protective sleeve, and can axially move in the protective sleeve;
the protective sleeve comprises a sleeve and a handle; the handle is of a hollow structure and comprises a surface A, a surface B, a surface C, a surface D, a surface E and a surface F, wherein the surface A and the surface B are planes and are mirror images from top to bottom; the surface C and the surface D are both arc surfaces and are respectively positioned on the front side and the rear side of the surface A; the plane E and the plane F are both planes and are respectively positioned on the left side and the right side of the plane A;
the surface D is provided with a first guide groove;
the surface A and the surface B are both provided with arc-shaped bulges, the central axes of the arc-shaped bulges are both coincided with the central axis of the sleeve, and the arc-shaped bulges are respectively communicated with the surface A and the surface B; a circular hole is formed in the surface F, and the central axis of the circular hole is coincided with the central axis of the arc-shaped protrusion; the circular hole is communicated with the sleeve and the first guide groove; openings are formed in the upper side and the lower side of the round hole and communicated with the round hole, and the depth of each opening extends along the arc-shaped protruding direction;
the sleeve is of a hollow cylindrical structure, the central axis of the sleeve is vertical to the axis of the handle, one end of the sleeve is connected with the E surface to form an integral structure, the other end of the sleeve is provided with an inclined surface, the inclined surface inclines towards the D surface, and the inclined surface comprises an A end and a B end; a second guide groove is formed in the cylindrical surface of the sleeve and is parallel to the central axis of the sleeve, one end of the second guide groove is communicated with the first guide groove, and the other end of the second guide groove is communicated with the end B;
one end of the second guide groove, which is close to the handle, is provided with a limiting boss, the limiting boss is respectively positioned on the upper side and the lower side of the second guide groove, a limiting bayonet is formed between the two limiting bosses, and the width H1 of the limiting bayonet is gradually reduced along the X direction.
2. The safety sheath for intravenous infusion needle of claim 1, wherein the end of the sleeve near the handle is provided with a first boss, the first boss is located on the inner cylindrical surface of the sleeve, the first boss is respectively distributed on the upper side and the lower side of the second guide groove, the cross section of the first boss is wedge-shaped, and the height H2 of the first boss is gradually increased along the X direction.
3. The safety sheath for an intravenous infusion needle of claim 1 or 2, wherein a second boss is arranged in the arc-shaped bulge, the second boss is positioned at the intersection of the opening and the circular hole, and the height H3 of the second boss is gradually increased along the X direction.
4. The safety shield for an iv needle of claim 1 wherein the first guide channel subtends an angle of 60-150 °.
5. The safety shield for an iv needle of claim 1 wherein the first and second guide channels are aligned.
6. The safety shield for an intravenous infusion needle of claim 1, wherein said single-wing infusion needle is in communication with an infusion catheter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821591044.6U CN210750637U (en) | 2018-09-28 | 2018-09-28 | Safety sheath for intravenous infusion needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821591044.6U CN210750637U (en) | 2018-09-28 | 2018-09-28 | Safety sheath for intravenous infusion needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210750637U true CN210750637U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821591044.6U Active CN210750637U (en) | 2018-09-28 | 2018-09-28 | Safety sheath for intravenous infusion needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210750637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224192A (en) * | 2018-09-28 | 2019-01-18 | 江苏治宇医疗器材有限公司 | A kind of safety shield for single wing transfusion syringe |
-
2018
- 2018-09-28 CN CN201821591044.6U patent/CN210750637U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224192A (en) * | 2018-09-28 | 2019-01-18 | 江苏治宇医疗器材有限公司 | A kind of safety shield for single wing transfusion syringe |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 225400 No. 88, Nanyuan Road, Dasheng Industrial Park, Jichuan Street, Taixing City, Taizhou City, Jiangsu Province Patentee after: Jiangsu Zhiyu Medical Equipment Co.,Ltd. Address before: 225400 No. 88, Nanyuan Road, Dasheng Industrial Park, Jichuan Street, Taixing City, Taizhou City, Jiangsu Province Patentee before: JIANGSU ZHIYU MEDICAL EQUIPMENT CO.,LTD. |