CN110538360A - self-locking safety needle for transfusion port - Google Patents
self-locking safety needle for transfusion port Download PDFInfo
- Publication number
- CN110538360A CN110538360A CN201910914454.2A CN201910914454A CN110538360A CN 110538360 A CN110538360 A CN 110538360A CN 201910914454 A CN201910914454 A CN 201910914454A CN 110538360 A CN110538360 A CN 110538360A
- Authority
- CN
- China
- Prior art keywords
- needle
- hole
- box body
- plate
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003814 drug Substances 0.000 claims abstract description 33
- 238000001802 infusion Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 230000009189 diving Effects 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 241000700605 Viruses Species 0.000 abstract description 5
- 208000035473 Communicable disease Diseases 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 244000005700 microbiome Species 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 7
- 208000015181 infectious disease Diseases 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 238000012377 drug delivery Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1586—Holding accessories for holding infusion needles on the body
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a self-locking safety needle for an infusion port. The self-locking safety needle comprises a needle locking box body, the lower surface of the box body is attached to the skin and is close to an infusion port implanted under the skin, a cavity is formed in the box body in a hollow mode, needle holes are formed in the upper surface and the lower surface of the box body respectively, needle points of a medicine feeding needle penetrate through the needle holes at the lower end to communicate with the infusion port, a positioning block is formed in the upper cavity wall of the box body in a downward vertical extending mode, a wiring channel is arranged on the other end of the upper cavity wall of the box body and the side cavity wall connected with the wiring channel, one end of the elastic plate at the lower end of the elastic seat is connected with the bottom plate in an inclined mode, a lower through hole is formed in the bottom plate, the elastic plate is provided with a needle hole, the elastic seat is located. The invention has the effects that after the needle is pulled out, the needle tip of the medicine feeding needle is locked, the accidental puncture is avoided, the microorganism infectious diseases such as related viruses and the like are prevented, and the needle is pulled out quickly and safely.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a self-locking safety needle for an infusion port.
Background
In the prior art, long-term infusion is generally applied to an infusion port, when a medicine feeding needle is pulled out, the needle head can be pulled out only by large force because the needle is perpendicular to the infusion port, in the operation, because the action amplitude is too large or the action is out of control, operators or surrounding accompanying personnel are easily injured, patients needing the infusion port have more virus carriers or patients infected with related diseases through blood, the needle body can be infected with liquid containing viruses, and the infection is easily caused when the related personnel are injured.
Disclosure of Invention
To address one or more of the above-mentioned problems, the present invention provides a self-locking safety needle for use in an infusion port.
According to one aspect of the invention, the self-locking safety needle for the transfusion port comprises a medicine administration needle, a needle locking box, an elastic seat and a connecting wire,
the needle locking box comprises a box body, the lower surface of the box body is attached to the skin and is close to an infusion port implanted under the skin, a cavity is formed in the box body in a hollow mode, needle outlets are formed in the upper surface and the lower surface of the box body respectively, a needle point of a medicine feeding needle penetrates through the needle outlet at the lower end to be communicated with the infusion port, one end of the upper cavity wall of the box body extends downwards and vertically to form a positioning block, a routing channel is arranged at the other end of the upper cavity wall of the box body,
the elastic seat comprises a bottom plate and an elastic plate, the lower end of the elastic plate is obliquely connected with the upper end of the bottom plate, the bottom plate is provided with a lower through hole, the elastic plate is provided with a needle passing hole, the elastic seat is positioned in the cavity, the bottom plate moves on the lower cavity wall of the cavity,
One end of the connecting wire is connected with the medicine feeding needle, the other end of the connecting wire passes through the wiring channel to be connected with the bottom plate,
When the elastic plate is compressed and attached to the lower surface of the positioning block, the lower end of the drug delivery needle can sequentially penetrate through the upper end needle outlet hole, the needle passing hole, the lower through hole and the lower end needle outlet hole to be connected with a transfusion port for drug delivery, the connecting wire is loosely arranged in the route,
When a user fixes the needle locking box with one hand and pulls up the administration needle with the other hand, the connecting wire is gradually tightened and straightened in the wiring channel, the connecting wire pulls the bottom plate to move towards the other end, meanwhile, the lower end of the bottom plate is sealed to form a needle hole, the upper end of the elastic plate is separated from the positioning block, the elastic plate is elastically stretched to be attached to the lower cavity wall of the cavity, and the administration needle is always positioned in the cavity.
The self-locking safety needle for the transfusion port is characterized in that a medicine feeding needle is connected with an elastic seat, when the medicine feeding needle is pulled out, the elastic seat is displaced, the elastic seat simultaneously seals a needle outlet hole at the lower end, the needle point of the medicine feeding needle is sealed in a cavity, and the medicine feeding needle does not slide out of a needle locking box when being pulled out, so that medical staff or peripheral accompanying staff are prevented from being punctured by the medicine feeding needle by mistake, the infection of microbial infectious diseases such as related viruses and the like is prevented, the safety is improved, meanwhile, the device is convenient to operate, the experience requirements and the technical requirements of the medical staff for operating dangerous instruments can be reduced, the needle pulling speed and the needle pulling technology are greatly improved, the large-scale popularization and application are facilitated, and secondly, the uppermost position of the medicine feeding needle is controlled by the length of a connecting line, the control precision; and thirdly, the elastic seat is provided with a positioning block in a compressed state, when the elastic seat is completely unfolded, the upper end of the elastic seat is abutted against the upper cavity wall, the two states are fixed states, and the upper position and the lower position can be effectively controlled, so that the safety self-locking capability is improved.
In some embodiments, the elastic seat further comprises a stop plate vertically connected to the other end of the bottom plate, and the stop plate is located below the upper end of the elastic plate.
In some embodiments, the bottom plate, the spring plate and the stop plate are of a unitary structure or the bottom plate, the spring plate and the stop plate are connected by an adhesive.
In some embodiments, the resilient plate is a polyurethane elastomeric rubber. The beneficial effects are as follows: the elastic plate of the material is convenient to process, has good elastic property, and does not influence the nuclear magnetic resonance operation of a patient.
In some embodiments, the box body lower cavity wall is further provided with a moving channel, the moving channel is as wide as the bottom plate, the moving channel is communicated with the wire routing channel, two limiting plates are formed on the moving channel, the limiting plates are respectively connected with two side walls of the cavity, a through long slideway is formed in the middle of the limiting plates, and the slideway is in clearance fit with the elastic plate in width.
In some embodiments, the lower surface of the bottom plate is provided with a ball, and the ball is attached to the lower cavity wall of the box body.
in some embodiments, the routing channel includes a longitudinal channel and a transverse channel, the longitudinal channel is located in the side cavity wall of the box body, the lower end of the longitudinal channel extends towards the inner surface of the side cavity wall of the box body to form a lower line hole, the inner end of the transverse channel extends towards the upper surface of the upper cavity wall of the box body to form an upper line hole, and the connecting line passes through the upper line hole, the transverse channel, the longitudinal channel and the lower line hole to connect with the bottom plate.
in some embodiments, the needle passing hole is a long round hole or a rectangular hole, the needle outlet hole is in interference fit with the needle body of the administration needle, and the diameter of the lower through hole and the width of the needle passing hole are in clearance fit with the needle body.
In some embodiments, the administration needle comprises a needle body, the rear end of the needle body is communicated with the liquid storage device through a liquid conveying pipe, the front end of the needle body sequentially penetrates through the upper end needle outlet hole, the needle passing hole, the lower through hole and the lower end needle outlet hole and penetrates into the skin to be connected with the infusion port for administration, the upper end of the needle body is provided with an operation end, and the operation end is connected with the upper end of the connecting line.
In some embodiments, the operation end is made of plastic, the middle of the operation end is integrally coated on the outer wall of the needle body, and two holding pieces are formed at the outer end of the operation end.
Drawings
FIG. 1 is a schematic view of a self-locking safety needle for use in a port of infusion according to one embodiment of the present invention;
FIG. 2 is a schematic view of the self-locking safety needle of FIG. 1 in a needle withdrawn state;
FIG. 3 is a schematic front view of the lock pin box of FIG. 1;
FIG. 4 is a schematic cross-sectional view A-A of the lock pin box of FIG. 3;
FIG. 5 is a schematic cross-sectional view B-B of the lock pin box shown in FIG. 3;
FIG. 6 is a schematic cross-sectional view C-C of the lock pin box of FIG. 3;
FIG. 7 is a schematic cross-sectional view D-D of the lock pin box shown in FIG. 3;
FIG. 8 is a three-dimensional schematic view of the elastomeric mount shown in FIG. 1;
FIG. 9 is a schematic front view of the elastic mount shown in FIG. 8;
FIG. 10 is a schematic top view of the elastomeric mount of FIG. 8;
FIG. 11 is a bottom view of the elastomeric mount of FIG. 8;
FIG. 12 is a front view of the administration needle of FIG. 1;
FIG. 13 is a top view of the needle of FIG. 12;
The medicine feeding needle comprises a medicine feeding needle 1, a needle body 10, an operation end 11 and a holding piece 12;
the needle locking box 2, the box body 20, the cavity 21, the needle outlet 22, the positioning block 23, the wiring channel 24, the needle inlet 244, the cross channel 242, the longitudinal channel 241, the needle outlet 243, the moving channel 25, the limiting plate 26 and the slide channel 27;
The elastic seat 3, the bottom plate 31, the elastic plate 32, the stop plate 33, the lower through hole 34, the needle passing hole 35, the ball 36 and the connecting wire 4.
Detailed Description
the present invention will be described in further detail with reference to the accompanying drawings. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Fig. 1-13 schematically illustrate a self-locking safety needle for an access port according to an embodiment of the present invention. As shown in the figure, the device comprises a dosing needle 1, a needle locking box 2, an elastic seat 3 and a connecting wire 4,
the needle locking box 2 comprises a box body 20, the lower surface of the box body 20 is attached to the skin and is close to an infusion port implanted under the skin, a cavity 21 is formed in the box body 20 in a hollow mode, needle outlets 22 are formed in the upper surface and the lower surface of the box body 20 respectively, the needle point of the administration needle 1 penetrates through the needle outlet 22 at the lower end to be communicated with the infusion port, one end of the upper cavity wall of the box body 20 extends downwards vertically to form a positioning block 23, a routing channel 24 is arranged at the other end of the upper cavity wall of the box body 20 and the side cavity,
The elastic seat 3 comprises a bottom plate 31 and an elastic plate 32, the lower end of the elastic plate 32 is obliquely connected with one end of the bottom plate 31, the bottom plate 31 is provided with a lower through hole 34, the elastic plate 32 is provided with a needle passing hole 35, the elastic seat 3 is positioned in the cavity 21, the bottom plate 31 moves on the lower cavity wall of the cavity 21,
one end of the connecting wire 4 is connected with the medicine feeding needle 1, the other end of the connecting wire 4 passes through the wire path 24 to be connected with the bottom plate 31,
When the elastic plate 32 is compressed and attached to the lower surface of the positioning block 23, the lower end of the administration needle 1 can sequentially pass through the upper end needle outlet 22, the needle passing hole 35, the lower through hole 34 and the lower end needle outlet 22 to be connected with the transfusion port for administration, the connecting line 4 is loosely arranged in the routing channel 24,
when a user fixes the needle locking box 2 by one hand and pulls up the administration needle 1 by the other hand, the connecting wire 4 is gradually tightened and straightened in the routing channel 24, the connecting wire 4 pulls the bottom plate 31 to move to the other end, meanwhile, the bottom plate 31 seals the lower end needle outlet hole 22, the upper end of the elastic plate 32 is separated from the positioning block 23 and is elastically stretched and attached to the lower cavity wall of the cavity 21, and the administration needle 1 is always positioned in the cavity 21.
the self-locking safety needle for the transfusion port is characterized in that a medicine feeding needle 1 is connected with an elastic seat 3, when the medicine feeding needle 1 is pulled out, the elastic seat 3 is shifted and seals a needle outlet hole 22 at the lower end, the needle point of the medicine feeding needle is sealed in a cavity, and the medicine feeding needle 1 does not slide out of a needle locking box when pulled out, so that medical workers or peripheral accompanying personnel are prevented from being punctured by the medicine feeding needle 1, the infection of microbial infectious diseases such as related viruses and the like is prevented, the safety is improved, meanwhile, the device is convenient to operate, the experience requirements and the technical requirements of the medical workers for operating dangerous instruments can be reduced, the needle pulling speed and the needle pulling technology are greatly improved, the large-scale popularization and application are facilitated, and secondly, the uppermost end position of the medicine feeding needle 1 is controlled by the length of a connecting wire 4, the control precision is high; thirdly, the elastic seat 3 is provided with a positioning block 23 in a compressed state, when the elastic seat is completely unfolded, the upper end of the elastic seat is abutted against the upper cavity wall, the two states are fixed states, and the upper position and the lower position can be effectively controlled, so that the safety self-locking capability is improved.
Preferably, the elastic seat 3 further comprises a stop plate 33, the stop plate 33 is vertically connected to the other end of the bottom plate 31, and the stop plate 33 is located below the upper end of the elastic plate 32. The beneficial effects are as follows: the stop plate 33 can effectively control the lowermost position of the spring plate 32, thereby improving the position accuracy.
preferably, the bottom plate 31, the spring plate 32 and the stop plate 33 are an integral structure or the bottom plate 31, the spring plate 32 and the stop plate 33 are connected by an adhesive.
Preferably, the spring plate 32 is a polyurethane elastomer rubber. The beneficial effects are as follows: the elastic plate 32 made of the material is convenient to process, has good elastic property and does not influence the nuclear magnetic resonance operation of a patient.
preferably, the box body 20 is further provided with a moving path 25 on the lower cavity wall, the moving path 25 and the bottom plate 31 are the same in width, the moving path 25 is communicated with the wiring path 24, two limiting plates 26 are formed on the moving path 25, the limiting plates 26 are respectively connected with two side walls of the cavity 21, a through long slideway 27 is formed in the middle of each limiting plate 26, and the slideway 27 is in clearance fit with the elastic plate 32 in width. The beneficial effects are as follows: the moving track 25 can effectively ensure the moving straightness of the elastic seat 3, ensure the moving precision and further improve the moving precision and controllability of the needle.
Preferably, the lower surface of the bottom plate 31 is provided with a ball 36, and the ball 36 is attached to the lower cavity wall of the box body 20. The beneficial effects are as follows: the rolling friction of the balls 36 is relatively to the surface sliding friction, so that the friction resistance is small, the movement is flexible, and no blockage exists.
Preferably, the routing channel 24 includes a longitudinal channel 241 and a transverse channel 242 that are connected to each other, the longitudinal channel 241 is located in the side cavity wall of the box body 20, the lower end of the longitudinal channel 241 extends towards the inner surface of the side cavity wall of the box body 20 to form a lower line hole 243, the inner end of the transverse channel 242 extends towards the upper surface of the upper cavity wall of the box body 20 to form an upper line hole 244, and the connecting line 4 passes through the upper line hole 244, the transverse channel 242, the longitudinal channel 241 and the lower line hole 243 to connect the bottom plate 31.
preferably, the needle passing hole 35 is an oblong hole or a rectangular hole, the needle outlet hole 22 is in interference fit with the needle body 10 of the administration needle 1, and the diameter of the lower through hole 34 and the width of the needle passing hole 35 are in clearance fit with the needle body 10. The beneficial effects are as follows: this setting can effectively guarantee to give medicine needle 1 closely seal when infusing, and is convenient when extracting, crosses the slotted hole or the rectangular hole of pinhole 35 and selects soon moreover, can effectively guarantee that the removal of elastic seat 3 and the reciprocating of giving medicine needle 1 do not have the interference.
Preferably, the administration needle 1 comprises a needle body 10, the rear end of the needle body 10 is communicated with a liquid storage device through an infusion tube, the front end of the needle body 10 sequentially penetrates through an upper-end needle outlet 22, a needle passing hole 35, a lower through hole 34 and a lower-end needle outlet 22 and penetrates into the skin to be connected with an infusion port for administration, an operation end 11 is arranged at the upper end of the needle body 10, and the operation end 11 is connected with the upper end of the connecting line 4.
Preferably, operation end 11 is the plastics material, and the whole cladding is in the needle body 10 outer wall in the middle of 11 operation end, and 11 outer ends of operation end form two and hold between the fingers piece 12, hold between the fingers piece 12 and can upwards fold certain angle to upwards pull out the needle when conveniently holding between the fingers. The beneficial effects are as follows: the setting operation is convenient.
preferably, the grip tab 12 may be a butterfly tab.
preferably, the holding piece 12 can be turned upwards by half 90 °, and the upward pulling force is vertical force without horizontal component force, so that the pulling force can be reduced, and the smaller the pulling force, the easier the amplitude is to control.
The holding piece 12 of the butterfly-shaped blade is turned upwards and half-folded for 90 degrees, an operator fixes the box body 20 with one hand and holds the holding piece 12 of the butterfly-shaped blade above with the other hand to pull out the needle.
what has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. a self-locking safety needle for an infusion port is characterized by comprising a medicine feeding needle (1), a needle locking box (2), an elastic seat (3) and a connecting wire (4),
the needle locking box (2) comprises a box body (20), the lower surface of the box body (20) is attached to the skin and is close to an infusion port implanted under the skin, a cavity (21) is formed in the box body (20) in a hollow mode, needle outlets (22) are formed in the upper surface and the lower surface of the box body (20) respectively, the needle point of the medicine feeding needle (1) penetrates through the needle outlet (22) at the lower end to be communicated with the infusion port, one end of the upper cavity wall of the box body (20) extends downwards and vertically to form a positioning block (23), and a route (24) is arranged at the other end of the upper cavity wall of the box body (20) and the side cavity walls connected with the positioning,
The elastic seat (3) comprises a bottom plate (31) and an elastic plate (32), the lower end of the elastic plate (32) is obliquely connected with one end of the bottom plate (31), the bottom plate (31) is provided with a lower through hole (34), the elastic plate (32) is provided with a needle hole (35), the elastic seat (3) is positioned in the cavity (21), the bottom plate (31) moves on the cavity wall under the cavity (21),
One end of the connecting wire (4) is connected with the medicine feeding needle (1), the other end of the connecting wire (4) penetrates through the wire path (24) to be connected with the bottom plate (31),
when the elastic plate (32) is compressed and attached to the lower surface of the positioning block (23), the lower end of the medicine feeding needle (1) can sequentially penetrate through the upper end needle outlet hole (22), the needle passing hole (35), the lower through hole (34) and the lower end needle outlet hole (22) to be connected with the transfusion port for medicine feeding, the connecting wire (4) is arranged in the wire walking channel (24) in a loosening manner,
when the user is fixed on one hand lock needle box (2), pull up on the other hand when giving medicine needle (1), connecting wire (4) are in it straightens to tighten gradually in lane (24) to walk, connecting wire (4) pulling bottom plate (31) remove to the other end, simultaneously bottom plate (31) seal the lower extreme go out pinhole (22), diving board (32) upper end breaks away from locating piece (23) and elasticity open the laminating cavity wall under cavity (21), give medicine needle (1) and be located always in cavity (21).
2. the self-locking safety needle for a port according to claim 1, wherein the elastic seat (3) further comprises a stop plate (33), the stop plate (33) is vertically connected to the other end of the bottom plate (31), and the stop plate (33) is positioned below the upper end of the elastic plate (32).
3. The self-locking safety needle for a port according to claim 2, wherein the base plate (31), the spring plate (32) and the stop plate (33) are an integral structure or the base plate (31), the spring plate (32) and the stop plate (33) are connected by an adhesive.
4. the self-locking safety needle for a port according to claim 3, wherein the spring plate (32) is polyurethane elastic rubber.
5. the self-locking safety needle for the transfusion harbor according to claim 1, wherein the lower cavity wall of the box body (20) is further provided with a moving channel (25), the width of the moving channel (25) is the same as that of the bottom plate (31), the moving channel (25) is communicated with the wire-moving channel (24), two limiting plates (26) are formed on the moving channel (25), the limiting plates (26) are respectively connected with two side walls of the cavity (21), a through long slide way (27) is formed in the middle of the limiting plates (26), and the slide way (27) is in clearance fit with the width of the elastic plate (32).
6. The self-locking safety needle for a port according to claim 5, wherein a ball (36) is mounted on the lower surface of the bottom plate (31), and the ball (36) is attached to the lower cavity wall of the box body (20).
7. the self-locking safety needle for a transfusion port as claimed in claim 5, wherein the routing channel (24) comprises a longitudinal channel (241) and a transverse channel (242) which are communicated with each other, the longitudinal channel (241) is located in the side cavity wall of the box body (20), the lower end of the longitudinal channel (241) extends towards the inner surface of the side cavity wall of the box body (20) to form a lower line hole (243), the inner end of the transverse channel (242) extends towards the upper surface of the upper cavity wall of the box body (20) to form an upper line hole (244), and the connecting line (4) passes through the upper line hole (244), the transverse channel (242), the longitudinal channel (241) and the lower line hole (243) to be connected with the bottom plate (31).
8. The self-locking safety needle for a transfusion port is characterized in that the needle passing hole (35) is an oblong hole or a rectangular hole, the needle outlet hole (22) is in interference fit with the needle body (10) of the medicine feeding needle (1), and the diameter of the lower through hole (34) and the width of the needle passing hole (35) are in clearance fit with the needle body (10).
9. The self-locking safety needle for the infusion port is characterized in that the medicine feeding needle (1) comprises a needle body (10), the rear end of the needle body (10) is communicated with a liquid storage device through an infusion tube, the front end of the needle body (10) sequentially penetrates through the upper needle outlet hole (22), the needle passing hole (35), the lower through hole (34) and the lower needle outlet hole (22) and penetrates into the skin to be connected with the infusion port for medicine feeding, an operating end (11) is arranged at the upper end of the needle body (10), and the operating end (11) is connected with the upper end of the connecting wire (4).
10. The self-locking safety needle for a transfusion port as claimed in claim 9, wherein the operation end (11) is made of plastic, the middle of the operation end (11) is integrally coated on the outer wall of the needle body (10), and two holding pieces (12) are formed at the outer end of the operation end (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910914454.2A CN110538360B (en) | 2019-09-25 | 2019-09-25 | Self-locking safety needle for transfusion port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910914454.2A CN110538360B (en) | 2019-09-25 | 2019-09-25 | Self-locking safety needle for transfusion port |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110538360A true CN110538360A (en) | 2019-12-06 |
| CN110538360B CN110538360B (en) | 2024-03-29 |
Family
ID=68714526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910914454.2A Active CN110538360B (en) | 2019-09-25 | 2019-09-25 | Self-locking safety needle for transfusion port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110538360B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352587A (en) * | 2007-07-25 | 2009-01-28 | 钱良 | Medical device for preventing puncture wound by needle |
| CA2821552A1 (en) * | 2012-07-31 | 2014-01-31 | Becton, Dickinson And Company | Subcutaneous infusion set with side port fluid connector |
| US20150196719A1 (en) * | 2012-09-28 | 2015-07-16 | Terumo Kabushiki Kaisha | Puncture device and medical fluid administration device |
| CN109999269A (en) * | 2019-05-07 | 2019-07-12 | 山东新华安得医疗用品有限公司 | Locking needle apparatus |
| CN211272851U (en) * | 2019-09-25 | 2020-08-18 | 国旭天华（苏州）医疗器械科技有限公司 | Self-locking safety needle for transfusion port |
-
2019
- 2019-09-25 CN CN201910914454.2A patent/CN110538360B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352587A (en) * | 2007-07-25 | 2009-01-28 | 钱良 | Medical device for preventing puncture wound by needle |
| CA2821552A1 (en) * | 2012-07-31 | 2014-01-31 | Becton, Dickinson And Company | Subcutaneous infusion set with side port fluid connector |
| US20150196719A1 (en) * | 2012-09-28 | 2015-07-16 | Terumo Kabushiki Kaisha | Puncture device and medical fluid administration device |
| CN109999269A (en) * | 2019-05-07 | 2019-07-12 | 山东新华安得医疗用品有限公司 | Locking needle apparatus |
| CN211272851U (en) * | 2019-09-25 | 2020-08-18 | 国旭天华（苏州）医疗器械科技有限公司 | Self-locking safety needle for transfusion port |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110538360B (en) | 2024-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11717649B2 (en) | Devices and methods for fluid transfer through a placed peripheral intravenous catheter | |
| US10357635B2 (en) | Catheter insertion device | |
| CN106659438B (en) | System and method for drawing blood through a peripheral IV catheter | |
| US5531672A (en) | Blood aspiration assembly components and blunt needle aspirators | |
| US6712790B1 (en) | Parenteral catheter apparatus | |
| US7041084B2 (en) | Hand-held, hand operated power syringe and methods | |
| CA1256342A (en) | Device for use in surgical procedures | |
| US5078699A (en) | Compact, easy to assemble, safety IV system | |
| US20090312718A1 (en) | Catheter with valve | |
| JP7418440B2 (en) | Catheter stabilization platforms, systems and methods | |
| EP2841127B1 (en) | Apparatus including a conduit clamping device | |
| AU2014307083A1 (en) | Catheter insertion device | |
| CN211272851U (en) | Self-locking safety needle for transfusion port | |
| CN110538360A (en) | self-locking safety needle for transfusion port | |
| AU2014331691B2 (en) | Huber needle assembly with safety capture device | |
| US20190143082A1 (en) | Catheter insertion device | |
| CN210447156U (en) | Portable pneumothorax puncture needle | |
| CN221014078U (en) | Needle special for needling prevention implantable drug delivery device | |
| CN219836013U (en) | Vascular access system and extension kit | |
| CN219332793U (en) | Telescopic anesthetic needle | |
| CN208388718U (en) | A kind of low damaging abdominal puncture and drainage remaining needle | |
| AU755356B2 (en) | A parenteral catheter apparatus | |
| KR20230166116A (en) | Mechanism advance device with anti-buckling features | |
| WO1995006488A2 (en) | Single outlet vascular catheterism device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |