CN219662506U - Safety cover for needle cylinder - Google Patents
Safety cover for needle cylinder Download PDFInfo
- Publication number
- CN219662506U CN219662506U CN202223591301.5U CN202223591301U CN219662506U CN 219662506 U CN219662506 U CN 219662506U CN 202223591301 U CN202223591301 U CN 202223591301U CN 219662506 U CN219662506 U CN 219662506U
- Authority
- CN
- China
- Prior art keywords
- needle
- safety cover
- wall
- sleeve
- movably clamped
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000004891 communication Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000030507 AIDS Diseases 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 208000006454 hepatitis Diseases 0.000 description 1
- 231100000283 hepatitis Toxicity 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
The utility model discloses a safety cover for a syringe, which relates to the technical field of syringes and comprises a syringe, wherein a piston is movably clamped on the inner wall of the syringe, a needle rod is fixedly connected to one side of the piston, a needle point is movably clamped on the bottom of the syringe, a safety cover is movably clamped on one end of the needle point, the safety cover comprises a connecting mechanism, a sealing mechanism and a needle sleeve, the inner wall of the needle sleeve is movably clamped with the sealing mechanism, the bottom of the syringe is movably connected with the connecting mechanism, a connecting bottom pipe is fixedly connected to the bottom of the syringe, and the connecting mechanism comprises a positioning clamping plate, a connecting clamping ring, a threaded clamping ring and a connecting rotating plate. According to the utility model, the needle cylinder, the needle rod, the piston, the safety cover, the connecting bottom tube and the needle point are matched, so that the problem that the safety cover is easy to drop is avoided, the needle point is prevented from damaging a human body by the safety cover, and the safety of the device is improved.
Description
Technical Field
The utility model relates to the technical field of injectors, in particular to a safety cover for a syringe.
Background
The advent of syringes is a one-time-generation product of the medical device field. This process of drawing, injecting a gas or liquid with a needle is called injection. The injector consists of a needle cylinder with a small hole at the front end and a matched piston core rod, and is used for injecting a small amount of liquid or the liquid into areas inaccessible to other methods or extracting the liquid or the gas from the places, wherein the liquid or the gas is sucked from the small hole at the front end of the needle cylinder when the core rod is pulled out, and the liquid or the gas is extruded when the core rod is pushed in.
Injection is the most common practice in medical treatment, and is a method of achieving drug infusion by penetration of a needle tip into a blood vessel or skin. Therefore, bacteria or viruses (such as AIDS, hepatitis, etc.) which are inevitably transmitted through blood remain on the injected needle, and bring potential harm to medical care and medical personnel, and a safety cover for protecting the syringe is needed.
The following problems exist in the prior art:
1. most of the existing safety covers for the needle cylinder are in a separation structure, and are clamped with the safety cover through the needle point at one end of the needle cylinder, when the existing safety cover for the needle cylinder is used, the existing safety cover for the needle cylinder is pulled out and inserted into the needle cylinder for removal, and then the safety cover is easy to fall off after the needle cylinder is used, so that the needle point of the needle cylinder is inconvenient to protect, the problem that the needle point is easy to stab a human body is solved, and the safety of the existing safety cover for the needle cylinder is reduced;
2. the existing safety cover for the needle cylinder is connected with the needle cylinder through the bending plate, the bending plate has rebound tendency after deflection, when medical staff uses the injector, the calibration needs to be carried out with the appointed position used by a patient, but the existing safety cover for the needle cylinder easily blocks the hand of the medical staff from being placed, the sight of a user is disturbed, and the safety of the existing safety cover for the needle cylinder is further reduced.
Disclosure of Invention
The present utility model provides a safety cap for a syringe, which solves the problems set forth in the background art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the safety cover for the needle cylinder comprises the needle cylinder, wherein a piston is movably clamped on the inner wall of the needle cylinder, a needle rod is fixedly connected to one side of the piston, a needle point is movably clamped on the bottom of the needle cylinder, and a safety cover is movably clamped on one end of the needle point;
the safety cover comprises a connecting mechanism, a sealing mechanism and a needle sleeve, wherein the inner wall of the needle sleeve is movably clamped with the sealing mechanism, and the bottom of the needle cylinder is movably connected with the connecting mechanism;
the bottom of the needle cylinder is fixedly connected with a connecting bottom pipe.
The technical scheme of the utility model is further improved as follows: the connecting mechanism comprises a positioning clamping plate, a connecting clamping ring, a threaded clamping ring and a connecting rotating plate, wherein the inner wall of the connecting clamping ring is movably clamped with one end of the needle point, and one side of the positioning clamping plate is fixedly connected with the outer wall of the needle sleeve.
By adopting the technical scheme, the relative position between the needle point and the needle sleeve is limited in the scheme, and the problem that the needle sleeve falls off is avoided.
The technical scheme of the utility model is further improved as follows: one side of the connecting clamping ring is hinged with one side of the connecting rotating plate, one side of the positioning clamping plate is hinged with one side of the connecting rotating plate, and a deflectable structure is formed between the positioning clamping plate and the connecting clamping ring through the connecting rotating plate.
By adopting the technical scheme, the needle sleeve is deflected along one side of the connecting rotating plate, so that the operation of a user is facilitated, the position of the needle sleeve is conveniently adjusted by the user, and the convenience of the device is improved.
The technical scheme of the utility model is further improved as follows: the inner wall of the threaded snap ring is in threaded connection with one end of the needle point, one side of the threaded snap ring is movably clamped with one side of the connecting snap ring, and a detachable structure is formed between the connecting snap ring and the needle point through the threaded snap ring.
By adopting the technical scheme, the connecting snap ring is detached by rotating the threaded snap ring in the scheme, so that a user can conveniently replace the needle sleeve, and the user can conveniently overhaul.
The technical scheme of the utility model is further improved as follows: the sealing mechanism comprises a sealing clamping sleeve and a rubber cushion block, wherein the sealing clamping sleeve is fixedly connected with the inner wall of the needle sleeve, the rubber cushion block is fixedly connected with the inner wall of the sealing clamping sleeve, the bottom end of the needle point is movably clamped with the inner wall of the sealing clamping sleeve, and one end of the needle point is movably clamped with one side of the rubber cushion block.
By adopting the technical scheme, the needle tip is protected by the sealing clamping sleeve and the sealing cushion block in the scheme, so that the tightness of the device is improved, the problem of leakage of the device is avoided, and the safety of the device is improved.
The technical scheme of the utility model is further improved as follows: the outer wall of the connecting bottom tube is in threaded connection with the inner wall of the needle point, the needle point forms a detachable structure through the connecting bottom tube and the needle cylinder, and a communication structure is formed among the needle cylinder, the connecting bottom tube and the needle point.
By adopting the technical scheme, the needle point is rotated along one end of the connecting bottom tube to detach, so that the durability of the device is improved, and the service life of the device is prolonged.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:
1. the utility model provides a safety cover for a needle cylinder, which adopts the cooperation of the needle cylinder, a needle rod, a piston, a safety cover, a connecting bottom tube and a needle point, so that the problem that the safety cover is easy to fall off is avoided, the needle point is prevented from being damaged by the safety cover, and the safety of the device is improved.
2. The utility model provides a safety cover for a needle cylinder, which is matched with a needle sleeve by adopting a positioning clamping plate, a connecting clamping ring, a threaded clamping ring, a connecting rotating plate and the needle sleeve, and deflects the needle sleeve through the connecting clamping ring and the connecting rotating plate, so that the position of the needle sleeve is adjusted, the problem of rebound of the needle sleeve is avoided, the safety cover is convenient for a user to operate and use, shielding of the needle sleeve to the user is reduced, and the safety of the safety cover is further improved.
Drawings
FIG. 1 is a front cross-sectional view of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a schematic view of the safety cover of the present utility model;
fig. 4 is an enlarged view of fig. 1 at a in accordance with the present utility model.
In the figure: 1. a needle cylinder; 2. a needle bar; 3. a piston; 4. a safety cover; 5. a needle tip; 6. positioning a clamping plate; 7. connecting a clamping ring; 8. a threaded snap ring; 9. sealing the cutting ferrule; 10. a needle sleeve; 11. connecting a rotating plate; 12. and the bottom tube is connected.
Detailed Description
The utility model is further illustrated by the following examples:
example 1
As shown in fig. 1-4, the utility model provides a safety cover for a needle cylinder, which comprises a needle cylinder 1, wherein the inner wall of the needle cylinder 1 is movably clamped with a piston 3, one side of the piston 3 is fixedly connected with a needle rod 2, the bottom of the needle cylinder 1 is movably clamped with a needle point 5, and one end of the needle point 5 is movably clamped with a safety cover 4;
the safety cover 4 comprises a connecting mechanism, a sealing mechanism and a needle sleeve 10, the inner wall of the needle sleeve 10 is movably clamped with the sealing mechanism, and the bottom of the needle cylinder 1 is movably connected with the connecting mechanism;
the bottom of the needle cylinder 1 is fixedly connected with a connecting bottom pipe 12.
In this embodiment, coupling mechanism is including location cardboard 6, connection snap ring 7, screw thread snap ring 8 and connection swivel plate 11, the inner wall of connection snap ring 7 and the one end activity joint of needle point 5, the outer wall fixed connection of one side and needle cover 10 of location cardboard 6 has restricted the relative position between needle point 5 and the needle cover 10, has avoided the problem that needle cover 10 takes place to drop.
Example 2
As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, one side of the connecting snap ring 7 is hinged with one side of the connecting rotating plate 11, one side of the positioning clamping plate 6 is hinged with one side of the connecting rotating plate 11, a deflectable structure is formed between the positioning clamping plate 6 and the connecting snap ring 7 through the connecting rotating plate 11, the inner wall of the threaded snap ring 8 is in threaded connection with one end of the needle tip 5, one side of the threaded snap ring 8 is movably clamped with one side of the connecting snap ring 7, and the connecting snap ring 7 forms a detachable structure through between the threaded snap ring 8 and the needle tip 5.
In this embodiment, deflect needle cover 10 along one side of connecting swivel plate 11, made things convenient for the operation of user, convenient to use person has improved the convenience of device to the regulation of needle cover 10 position, rotates screw snap ring 8 and dismantles connecting snap ring 7, and convenient to use person's change to needle cover 10, convenient to use person's maintenance.
Example 3
As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the sealing mechanism comprises a sealing clamping sleeve 9 and a rubber cushion block, wherein the sealing clamping sleeve 9 is fixedly connected with the inner wall of a needle sleeve 10, the rubber cushion block is fixedly connected with the inner wall of the sealing clamping sleeve 9, the bottom end of a needle tip 5 is movably clamped with the inner wall of the sealing clamping sleeve 9, one end of the needle tip 5 is movably clamped with one side of the rubber cushion block, the outer wall of a connecting bottom tube 12 is in threaded connection with the inner wall of the needle tip 5, the needle tip 5 forms a detachable structure through the connecting bottom tube 12 and the needle cylinder 1, and a communicating structure is formed among the needle cylinder 1, the connecting bottom tube 12 and the needle tip 5.
In this embodiment, through sealed cutting ferrule 9 and sealed cushion to the needle point 5 protect, improved the leakproofness of the device, avoided the device to take place the problem of seepage, improved the security of the device, rotate the needle point 5 along the one end of connecting bottom tube 12 and dismantle, improved the durability of the device, prolonged the life of the device.
The working principle of the safety cover for the syringe will be described in detail.
As shown in fig. 1 to 4, the needle sleeve 10 is pulled out through one end of the needle tip 5, the needle tip 5 is placed into the medicine with injection, then the needle rod 2 is pulled along the inner wall of the needle cylinder 1, the needle rod 2 drives the piston 3 to move along the inner wall of the needle cylinder 1, the medicine is sucked into the needle cylinder 1 through the action of air pressure, then the needle sleeve 10 is deflected through the connecting rotating plate 11 along one side of the connecting clamping ring 7, after the user finishes injection, the needle sleeve 10 is deflected through the connecting rotating plate 11 along one side of the positioning clamping plate 6, one end of the needle tip 5 is clamped with the inner wall of the sealing clamping sleeve 9, the device is processed, the damage to a human body caused by the needle tip 5 is avoided, the connecting clamping ring 7 is detached through rotating the threaded clamping ring 8, and then the needle sleeve 10 is replaced and overhauled.
The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (6)
1. Safety cover for a needle cylinder, comprising a needle cylinder (1), characterized in that: the needle cylinder is characterized in that a piston (3) is movably clamped on the inner wall of the needle cylinder (1), a needle rod (2) is fixedly connected to one side of the piston (3), a needle point (5) is movably clamped on the bottom of the needle cylinder (1), and a safety cover (4) is movably clamped at one end of the needle point (5);
the safety cover (4) comprises a connecting mechanism, a sealing mechanism and a needle sleeve (10), wherein the inner wall of the needle sleeve (10) is movably clamped with the sealing mechanism, and the bottom of the needle cylinder (1) is movably connected with the connecting mechanism;
the bottom of the needle cylinder (1) is fixedly connected with a connecting bottom pipe (12).
2. A safety cover for a syringe according to claim 1, wherein: the connecting mechanism comprises a positioning clamping plate (6), a connecting clamping ring (7), a threaded clamping ring (8) and a connecting rotating plate (11), wherein the inner wall of the connecting clamping ring (7) is movably clamped with one end of the needle point (5), and one side of the positioning clamping plate (6) is fixedly connected with the outer wall of the needle sleeve (10).
3. A safety cover for a syringe as set forth in claim 2, wherein: one side of the connecting clamping ring (7) is hinged with one side of the connecting rotating plate (11), one side of the positioning clamping plate (6) is hinged with one side of the connecting rotating plate (11), and the positioning clamping plate (6) forms a deflectable structure between the connecting rotating plate (11) and the connecting clamping ring (7).
4. A safety cover for a syringe as set forth in claim 2, wherein: the inner wall of screw thread snap ring (8) and the one end threaded connection of needle point (5), one side of screw thread snap ring (8) and the one side activity joint of connecting snap ring (7), connect and form detachable construction between snap ring (7) and needle point (5) through screw thread snap ring (8).
5. A safety cover for a syringe according to claim 1, wherein: the sealing mechanism comprises a sealing clamping sleeve (9) and a rubber cushion block, wherein the sealing clamping sleeve (9) is fixedly connected with the inner wall of a needle sleeve (10), the rubber cushion block is fixedly connected with the inner wall of the sealing clamping sleeve (9), the bottom end of a needle point (5) is movably clamped with the inner wall of the sealing clamping sleeve (9), and one end of the needle point (5) is movably clamped with one side of the rubber cushion block.
6. A safety cover for a syringe according to claim 1, wherein: the outer wall of the connecting bottom tube (12) is in threaded connection with the inner wall of the needle point (5), the needle point (5) forms a detachable structure through the connecting bottom tube (12) and the needle cylinder (1), and a communication structure is formed among the needle cylinder (1), the connecting bottom tube (12) and the needle point (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223591301.5U CN219662506U (en) | 2022-12-30 | 2022-12-30 | Safety cover for needle cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223591301.5U CN219662506U (en) | 2022-12-30 | 2022-12-30 | Safety cover for needle cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219662506U true CN219662506U (en) | 2023-09-12 |
Family
ID=87892633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223591301.5U Active CN219662506U (en) | 2022-12-30 | 2022-12-30 | Safety cover for needle cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219662506U (en) |
-
2022
- 2022-12-30 CN CN202223591301.5U patent/CN219662506U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |