CN217430596U - Booster for injector - Google Patents
Booster for injector Download PDFInfo
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- CN217430596U CN217430596U CN202220419264.0U CN202220419264U CN217430596U CN 217430596 U CN217430596 U CN 217430596U CN 202220419264 U CN202220419264 U CN 202220419264U CN 217430596 U CN217430596 U CN 217430596U
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- booster
- hole
- syringe
- contact part
- contact
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Abstract
The utility model discloses a boost motor for syringe. The booster mainly comprises a body and a through hole arranged on the body, wherein the booster body can be divided into two contact parts along the longitudinal axis of the through hole, and the two contact parts are asymmetrically distributed on two sides of the through hole. The booster is used for the injector, so that fingers of an injector user can exert force more uniformly, the stability and the safety of operation are improved, and the working strength of an operator is reduced.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to boost motor for syringe.
Background
As a general medical device, a syringe is generally used for blood drawing, medicine injection, and the like. The existing injector generally comprises a syringe, a push rod and a needle head, wherein a raised booster is arranged at the opening of the syringe for accommodating the push rod, and a push-pull handle is arranged at the end part of the push rod, so that a user can conveniently fix the injector, and liquid in the syringe is pushed out of the needle head through pressure and injected into a human body.
CN109172952A discloses a syringe comprising a booster comprising a main body portion and wing portions extending from the main body portion to both sides. When the booster is mounted on the syringe, the first tab of the body portion is located at an upper portion of the flange of the syringe, while the second tab of the body portion is located at a lower portion of the flange of the syringe, and the second opening of the second tab engages the barrel of the syringe.
CN210145218U discloses a booster for pre-filling and sealing syringe, comprising a boosting plate, a holding part and a supporting plate; the left side and the right side of the boosting plate symmetrically extend downwards to form holding parts; the holding part extends in a bilateral symmetry manner to form a supporting plate parallel to the boosting plate; the space surrounded by the boosting plate, the holding part and the supporting plate forms an upwards-concave clamping groove, and the shape of the clamping groove is matched with the tail part of a needle tube of the pre-filled syringe; the boosting plate is provided with a push rod hole, the push rod hole is positioned above the clamping groove, and the diameter of the push rod hole is matched with that of a push rod of the prefilled syringe.
However, the booster is set to be in a circular or elliptical shape with the same symmetry as the finger of the user, and is manufactured integrally with the syringe, but the booster is unstable in control of the push rod due to the different sizes of the fingers and the uneven force application problem in use, so that the injection process is labor-consuming, long in time and difficult in control of the injection speed, the injection effect is finally influenced, and potential safety hazards are brought. In addition, the conventional safety syringe has the problems of inconvenient operation, easy sliding and the like when the conventional safety syringe is operated by one hand of a user.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a booster for syringe makes its atress even in the use through the structure that improves the booster, improves accuracy, the security of syringe operation to the one-hand operation of being convenient for.
The utility model discloses a booster includes the booster includes body and through-hole:
the body is provided with a hollow structure for accommodating the top end of the syringe cylinder;
at least one side of the body is provided with an opening for moving the syringe into the hollow structure;
the through hole is arranged on the body and penetrates through the top of the body and the hollow structure;
preferably, the through hole has a circular, elliptical or irregular shape close to a circle, and further preferably a circle.
Preferably, the thickness of the body is 3-35mm, more preferably 5-30mm, such as 5mm, 8mm, 10mm, 12mm, 15mm, 17mm, 20mm, 25mm, 30 mm.
And a first contact part and a second contact part are respectively arranged on two sides of the through hole, and the distance between the outermost edge of the top of the first contact part and the center of the through hole is greater than the distance between the outermost edge of the top of the second contact part and the center of the through hole. Therefore, the two contact parts are asymmetrically distributed on two sides of the through hole and are suitable for different fingers or hand shapes of syringe users.
Preferably, the ratio of the distance between the outermost edge of the top of the first contact part and the center of the through hole to the distance between the outermost edge of the top of the second contact part and the center of the through hole is 1.05-1.4. Further preferably 1.1-1.4, such as 1.1, 1.2, 1.3, 1.4.
In an embodiment of the present invention, the lower end surfaces of the first contact member and the second contact member are all extended from any point outside toward the central axis of the through hole in an arc line or a straight line, and finally connected to the opening of the hollow structure. For example, the lower end face edges of the first contact member and the second contact member each extend in an arc line toward the central axis of the through hole; or the lower end surfaces of the first contact component and the second contact component are provided with partial planes, and the partial planes extend in an arc line from the inner side end points of the planes to the central axis of the through hole; or, the lower end faces of the first contact part and the second contact part are provided with partial planes, and a right angle exists.
Preferably, the lower end surfaces of the first contact member and the second contact member are smooth or provided with anti-slip threads. The force for pushing the push rod of the injector can be conveniently adjusted by different users according to the force exerted by different fingers.
Preferably, projections of the top portions of the first contact member and the second contact member in the direction of the central axis of the through hole are circular, elliptical, polygonal, or irregular.
Preferably, the length of the outermost diameter of the first contact member to the center of the through hole is preferably 20 to 30mm, more preferably 20 to 25mm, such as 20mm, 22.5mm, 25 mm.
Preferably, the length of the outermost diameter of the second contact part to the center of the through hole is preferably 15 to 25mm, more preferably 18 to 22mm, such as 18mm, 20mm, 22 mm.
In one embodiment of the present invention, when the through hole is circular, the diameter is 2 to 30mm, more preferably 5 to 25mm, for example: 5mm, 8mm, 10mm, 15mm, 18mm, 20mm, 25 mm.
In one embodiment of the present invention, when the through hole is circular, the ratio of the distance from the outermost edge of the first contact portion to the outermost edge of the second contact portion to the diameter of the through hole is 2-8, preferably 2-6, such as 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6.
Preferably, at least one side of the booster body is provided with an opening, so that the booster and the needle cylinder are conveniently connected into a whole by a user of the injector.
Preferably, the booster with the cylinder is dismantled and is connected, and further preferably set up the recess on hollow structure's the inner wall, the recess is mutually supported with the marginal arch at cylinder top.
In addition, the utility model discloses still provide a syringe, the constitution part of this syringe can include foretell boost motor.
Preferably, the top surface of the push rod of the injector is smooth or provided with anti-slip grains.
The beneficial effects of the utility model are as follows:
firstly, the utility model discloses a booster has adopted the design of asymmetric structure, and the shape of finger is more laminated to this kind of structure, makes the finger location stable, prevents to produce and slides.
Secondly, the utility model discloses a booster is convenient for the finger and evenly exerts hard, to the one-hand operator, makes things convenient for more laborsaving, has improved the security of operation.
Thirdly, the utility model discloses can set up anti-skidding line on the lower terminal surface of body to increase the frictional force between boost motor and the finger.
And fourthly, the hollow structure at the bottom of the booster body is designed, so that the syringe can be pushed into the booster more conveniently, the syringe and the booster are connected into a whole, and the effectiveness, accuracy and stability of fixing the syringe are improved.
Fifthly, the utility model discloses a booster can be dismantled with the syringe and be connected to make this booster ability reuse, effectively practice thrift the cost, improve the utilization efficiency of resources.
Drawings
FIG. 1 is a front view of the booster of the present invention;
the components in the figure are labeled as follows: 101-booster body, 102-hollow structure and 103-through hole;
FIG. 2 is a top view of the booster of the present invention;
the components in the figure are labeled as follows: 201-first contact member, 202-second contact member;
fig. 3 is a bottom view of the booster of the present invention;
the components in the figure are labeled as follows: 301-opening, 302-groove;
FIG. 4 is a schematic view of a syringe including a booster of the present invention;
the components in the figure are labeled as follows: 401-push rod, 402-piston, 403-booster, 404-syringe, 405-needle joint, 406-needle, 407-protective cap.
Detailed Description
The technical solution of the present invention will be further described with reference to the accompanying drawings, and the advantages and features of the present invention will become more apparent as the description proceeds. It should be understood that the embodiments are exemplary only, and are not limiting upon the scope of the invention.
It should be noted that the terms "lateral," "longitudinal," "top," "bottom," "side," "upper," "lower," "left," "right," and the like in the claims, the specification, and the like of this document indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and it is not necessarily understood that the referred devices or components must have a specific orientation, be configured or operated in a specific orientation.
It should also be noted that the terms "first" and "second" in the claims and the description of the present application are only used for describing similar objects, and are not necessarily to be construed as specific sequences or precedence orders.
Fig. 4 shows a specific structure of a syringe including the booster of the present invention. The syringe mainly comprises a push rod 401, a piston 402, a booster 403, a syringe 404, a needle joint 405, a needle 406 and a protective cap 407.
As shown in fig. 1 and 4, the booster 403 includes a body 101 and a through hole 103, and the shape of the through hole 103 is circular, elliptical, or an irregular shape close to a circle, preferably a circle. The through hole 103 is provided in the booster body 101 and penetrates the entire booster. The main function of the through hole 103 is to position the central positions of the plunger 401, the piston 402 and the cylinder 404 of the injector in a straight line. Depending on the type of injector commonly used and the size of the barrel 404, the diameter of the through-hole 103 may be designed to be 2-30mm, preferably 5-25mm, for example: 5mm, 8mm, 10mm, 15mm, 18mm, 20mm, 25 mm. As a result of extensive experimental studies by the inventors, the thickness of the body is set to 3 to 35mm, more preferably 5 to 30mm, for example, 5mm, 8mm, 10mm, 12mm, 15mm, 17mm, 20mm, 25mm, and 30 mm. In an embodiment of the present invention, the diameter of the through hole 103 is 8mm, and the thickness of the body is 10 mm.
As shown in fig. 1 and 2, the lower end surfaces of the first contact member 201 and the second contact member 202 each extend in an arc toward the central axis of the through hole from the outer end point, and are finally connected to the opening of the hollow structure. The lower end faces of the first contact part 201 and the second contact part 202 are smooth or arc faces provided with anti-slip lines, so that a syringe user feels more comfortable, and meanwhile, different users can conveniently adjust the force for pushing the syringe push rod according to the force applied by different fingers.
As shown in fig. 2, the booster may be divided into a first contact member 201 and a second contact member 202 with the center axis of the through hole 103 as a boundary. The two contact members are located on the left and right sides of the through hole 103, respectively. The two contact members are not symmetrical in shape in order to accommodate different finger or hand shapes of syringe users. The distance between the top outermost edge of the first contact member 201 and the center of the through-hole 103 is greater than the distance between the top outermost edge of the second contact member 202 and the center of the through-hole 103. The ratio of the distance between the top leftmost edge of the first contact member 201 and the center of the through-hole 103 to the distance between the top rightmost edge of the second contact member 202 and the center of the through-hole is 1.05-1.4. Further preferably 1.1-1.4, such as 1.1, 1.2, 1.3, 1.4. In addition, when the through hole is circular, the ratio of the distance from the outermost edge of the first contact portion to the outermost edge of the second contact portion to the diameter of the through hole is 2 to 8, more preferably 2 to 6, for example, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, and 6. In one embodiment of the present invention, the ratio of the distance between the leftmost edge of the top of the first contact member 201 and the center of the through-hole 103 to the distance between the rightmost edge of the top of the second contact member 202 and the center of the through-hole is 1.125, and the ratio of the distance from the outermost edge of the first contact portion to the outermost edge of the second contact portion to the diameter of the through-hole is 5.3.
As shown in fig. 2, the tops of the first contact part 201 and the second contact part 202 are both irregular, and the tops of the two contact parts may be designed to be oval, polygonal or other irregular patterns according to actual needs. As shown in fig. 1 and 3, the top surface of the booster body 101 may be a plane or an arc-shaped curved surface, and the lower end surface of the booster body 101 may be provided with anti-slip threads to increase friction force when a finger contacts the booster body. A hollow structure 102 is arranged in the middle of the bottom of the booster body 101, and the hollow structure 102 is mainly used for accommodating a syringe of the injector. A groove 302 is formed in the inner wall of the hollow structure 102, and the groove 302 is matched with the edge projection at the top end of the needle cylinder, so that the needle cylinder can be clamped in the groove 302, and the booster and the needle cylinder can be connected or detached conveniently. In an embodiment of the present invention, an opening 301 is disposed on one side of the body, and an opening 301 may be disposed on both sides of the body 101. The user of the injector can push the edge of the needle cylinder into the groove along the opening through the opening 301, so that the booster and the needle cylinder are fixedly installed into a whole, and the booster and the needle cylinder are uniformly stressed.
In order to understand the technical scheme of the utility model more clearly, the installation and the use process of the syringe including the utility model of boost are provided as follows:
firstly, selecting a booster with the diameter of the through hole matched with each other according to the type of the injector and the inner diameter of the needle cylinder.
Secondly, the upper end of the syringe cylinder is pushed into the groove of the hollow structure along the lateral opening of the hollow structure of the booster body, so that the booster and the syringe cylinder are fixed into a whole through the matching of the protrusion on the edge of the syringe cylinder and the groove.
And thirdly, connecting and fixing a push rod and a piston of the injector, then pushing the piston and the push rod into the needle cylinder from top to bottom along the through hole, and then sequentially assembling the needle cylinder, the needle head joint, the needle head and the protective cap together.
And fourthly, respectively controlling two contact parts of a push rod and a booster of the injector by adopting a thumb, an index finger and a middle finger of a single hand to carry out the conventional operation of sucking the liquid medicine and injecting the liquid medicine of the injector.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all utilize the equivalent structure transformation made by the content of the specification of the present invention, or directly or indirectly use in other related technical fields, all including in the same way the patent protection scope of the present invention.
Claims (10)
1. A booster for a syringe, comprising:
the booster comprises a body and a through hole;
the body is provided with a hollow structure for accommodating the top end of the syringe cylinder;
at least one side of the body is provided with an opening for moving the syringe into the hollow structure;
the through hole is arranged on the body and penetrates through the top of the body and the hollow structure;
and a first contact part and a second contact part are respectively arranged on two sides of the through hole, and the distance between the outermost edge of the top of the first contact part and the center of the through hole is greater than the distance between the outermost edge of the top of the second contact part and the center of the through hole.
2. The booster of claim 1, wherein:
the ratio of the distance between the outermost edge of the top of the first contact member and the center of the through hole to the distance between the outermost edge of the top of the second contact member and the center of the through hole is 1.05-1.4.
3. The booster of claim 1, wherein:
the thickness of the body is 3-35 mm.
4. The booster of claim 1, wherein:
the lower end faces of the first contact component and the second contact component extend in an arc line or a straight line from any point outside to the central axis of the through hole and are finally connected to the opening of the hollow structure.
5. The booster of claim 4, wherein:
the lower end surfaces of the first contact part and the second contact part are smooth or provided with anti-skid lines.
6. The booster of claim 1, wherein:
the projections of the tops of the first contact part and the second contact part in the central axis direction of the through hole are circular, elliptical, polygonal or irregular.
7. The booster of claim 1, wherein:
the through holes are round, oval or irregular shapes close to round.
8. The booster of claim 7, wherein:
when the through hole is circular, the ratio of the distance from the outermost edge of the first contact part to the outermost edge of the second contact part to the diameter of the through hole is 2-8.
9. The booster of claim 1, wherein:
the booster is detachably connected with the needle cylinder, a groove is formed in the inner wall of the hollow structure, and the groove is matched with the edge protrusion at the top end of the needle cylinder of the injector.
10. A syringe, characterized by:
the syringe includes the booster of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220419264.0U CN217430596U (en) | 2022-02-28 | 2022-02-28 | Booster for injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220419264.0U CN217430596U (en) | 2022-02-28 | 2022-02-28 | Booster for injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217430596U true CN217430596U (en) | 2022-09-16 |
Family
ID=83213851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220419264.0U Active CN217430596U (en) | 2022-02-28 | 2022-02-28 | Booster for injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217430596U (en) |
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2022
- 2022-02-28 CN CN202220419264.0U patent/CN217430596U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |