CN215023971U - Port needle, port needle seat and automatic port needle retraction device for infusion - Google Patents
Port needle, port needle seat and automatic port needle retraction device for infusion Download PDFInfo
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- CN215023971U CN215023971U CN202120490699.XU CN202120490699U CN215023971U CN 215023971 U CN215023971 U CN 215023971U CN 202120490699 U CN202120490699 U CN 202120490699U CN 215023971 U CN215023971 U CN 215023971U
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- needle
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- port needle
- sliding cavity
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Abstract
The utility model discloses a port needle for transfusion, which comprises a port needle body, wherein the port needle body is provided with a transfusion tube, a needle head, a clamping seat and a push rod; the bending part of the needle head is fixedly embedded in the clamping seat; the infusion tube is communicated with the tail part of the needle head; the upper end of the clamping seat is provided with a push rod; a port needle base for transfusion is used for accommodating the retraction of a port needle body; an automatic retraction device of a port needle for transfusion comprises a port needle body, a port needle seat body and a spring; the clamping seat of the port needle body can be freely and slidably arranged in the sliding cavity of the port needle seat body, the front part of the needle head of the port needle body can freely penetrate out of and retract into the bottom hole, the rear part of the needle head and the infusion tube can be freely and slidably arranged at the sliding chute, and the push rod can be freely and slidably arranged at the top hole; one end of the spring is fixedly connected with the port needle body, and the other end of the spring is fixedly connected to the inner wall of the sliding cavity. The beneficial effects are as follows: realize the automatic retraction of harbour needle for the harbour needle can retract in the device fast in the moment of pulling out from the infusion port, avoids the needle point to stab the operator.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to transfusion is with automatic device that contracts of contracting of port needle, port needle file and port needle.
Background
The port needle is used in conjunction with an implanted venous access port, which is a fully implanted vascular access system that provides a long-term venous blood access to a patient.
Because the accordant connection of harbour needle and infusion port is inseparabler, when needs pull out the harbour needle from the infusion port, the dynamics that needs to use is bigger to cause in the twinkling of an eye of pulling out, because the effect of inertial force makes the hand be difficult to control, and the syringe needle that makes very easily pull out punctures the operator in that twinkling of an eye.
SUMMERY OF THE UTILITY MODEL
To the above technical problem, aim at provides an automatic device that contracts of harbour needle, harbour needle file and harbour needle for the infusion realizes that the automation of harbour needle contracts again for in the harbour needle pulls out from the infusion port in the twinkling of an eye, can contract fast and arrive the device, avoid the needle point to stab the operator.
The utility model discloses a following technical scheme realizes:
a port needle for transfusion comprises a port needle body, wherein the port needle body is provided with a transfusion tube, a needle head, a clamping seat and a push rod; the bent part of the needle head is fixedly embedded in the clamping seat; the infusion tube is communicated with the tail part of the needle head; the upper end of the clamping seat is provided with a push rod.
Through set up cassette and push rod on with the syringe needle to can be controlled, operations such as spacing to the syringe needle, so that the syringe needle can realize stretching out and retracting.
Furthermore, a clamping seat clamping groove is formed in the upper end of the clamping seat.
Set up the cassette draw-in groove through the increase to in order can install cassette draw-in groove department with corresponding installation spare part, realize being connected with the port needle body.
Furthermore, the top end of the push rod is provided with a pushing part.
Through setting up the portion that bulldozes, be convenient for bulldoze the syringe needle, make it insert in the infusion port.
Furthermore, the pushing part is an arc-shaped pushing head.
Set up it into the arcwall face and bulldoze the head to increase the comfort level.
A port needle base for transfusion comprises a port needle base body, wherein the port needle base body consists of a left base and a right base, a sliding cavity is arranged in the port needle base body, and the sliding cavity is matched with a clamping seat; the bottom of the sliding cavity is provided with a through bottom hole, and the bottom hole is matched with the needle head; the top of the sliding cavity is provided with a through top hole, and the top hole is matched with the push rod; a through chute is arranged at the side part of the sliding cavity and is matched with the needle head; and a sliding cavity clamping groove is also formed in the top of the inner side of the sliding cavity.
Through adopting the port needle seat body to set up above structure, so that install the port needle body inside, can stretch out or retract with the syringe needle that realizes the port needle body.
An automatic retraction device of a port needle for transfusion comprises a port needle body, a port needle seat body and a spring; the clamping seat of the port needle body can be freely and slidably arranged in the sliding cavity of the port needle seat body, the front part of the needle head of the port needle body can freely penetrate out of and retract into the bottom hole, the rear part of the needle head and the infusion tube can be freely and slidably arranged at the sliding chute, and the push rod can be freely and slidably arranged at the top hole; the spring is positioned in the sliding cavity, one end of the spring is fixedly connected with the port needle body, and the other end of the spring is fixedly connected to the inner wall of the sliding cavity; when the front part of the needle extends out of the bottom hole, the needle tip can retract into the sliding cavity under the action of the tension spring.
By adopting the device, when the infusion device is communicated with an infusion port for infusion, the clamping seat is held by the thumb, the middle finger and the like, and the pushing part of the push rod is pressed by the forefinger, so that the front part of the needle head extends out of the port needle seat body to the maximum extent, and then the needle head and the infusion port can be communicated for infusion. After the transfusion is finished, the clamping seat is held, the needle is directly pulled out, and at the moment of pulling out the needle, the needle head of the needle head is quickly and automatically retracted into the harbor needle seat body under the action of the spring, so that the pricking injury of the needle point of the needle head to an operator is avoided.
Preferably, the spring is a tension spring which is nested on the push rod, one end of the tension spring is fixedly arranged in the clamping groove of the sliding cavity, and the other end of the tension spring is fixedly arranged in the clamping groove of the clamping seat; after the front part of the needle extends out of the bottom hole, the needle tip of the needle can be retracted into the sliding cavity under the action of the tension spring.
Preferably, the spring is a pressure spring, one end of the pressure spring is fixedly arranged at the bottom of the sliding cavity, and the other end of the pressure spring is fixedly connected to the bottom of the clamping seat of the harbor needle body.
Preferably, the spring comprises a tension spring and a pressure spring, the tension spring is nested on the push rod, one end of the tension spring is fixedly arranged in the clamping groove of the sliding cavity, and the other end of the tension spring is fixedly arranged in the clamping groove of the clamping seat; one end of the pressure spring is fixedly arranged at the bottom of the sliding cavity, and the other end of the pressure spring is fixedly connected to the bottom of the clamping seat of the harbor needle body.
The adoption of a tension spring and a pressure spring can further increase the working stability of the syringe needle and further ensure the retraction effect of the syringe needle.
Compared with the prior art, the utility model, following advantage and beneficial effect have: a port needle for transfusion, a port needle seat and an automatic port needle retraction device realize the automatic retraction of the port needle, so that the port needle can be quickly retracted into the device at the moment of being pulled out from a transfusion port, and the needle tip is prevented from stabbing an operator.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is an assembly exploded view of the automatic retraction device for the port needle for transfusion of the present invention.
Fig. 2 is a schematic view of the port needle for infusion.
Fig. 3 is a schematic structural view of a port needle stand for infusion.
Fig. 4 is an expanded view of fig. 3.
Reference numbers and corresponding part names in the drawings:
1-port needle body, 10-infusion tube, 11-needle head, 12-clamping seat, 121-clamping seat clamping groove, 13-push rod, 131-pushing part, 2-port needle seat body, 21-sliding cavity, 22-bottom hole, 23-top hole, 24-sliding groove, 25-sliding cavity clamping groove and 3-tension spring.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention.
Examples
As shown in fig. 1 and 2, the utility model relates to a port needle for transfusion, which comprises a port needle body 1, wherein the port needle body 1 is provided with a transfusion tube 10, a needle head 11, a clamping seat 12 and a push rod 13; the bent part of the needle head 11 is fixedly embedded in the clamping seat 12; the infusion tube 10 is communicated with the tail part of the needle 11; the upper end of the clamping seat 12 is provided with a push rod 13.
In some embodiments, the upper end of the card holder 12 is provided with a card holder slot 121. In a preferred embodiment, the card socket slots 121 are arranged for connecting with other corresponding parts.
In some embodiments, the top end of the push rod 13 is provided with a pushing part 131.
In some embodiments, the pushing portion 131 is an arc-shaped pushing head.
As shown in fig. 1, 3 and 4, the port needle holder for transfusion comprises a port needle holder body 2, wherein the port needle holder body 2 consists of a left seat and a right seat, a sliding cavity 21 is arranged inside the port needle holder body 2, and the sliding cavity 21 is matched with the clamping seat 12; a through bottom hole 22 is formed in the bottom of the sliding cavity 21, and the bottom hole 22 is matched with the needle 11; the top of the sliding cavity 21 is provided with a through top hole 23, and the top hole 23 is matched with the push rod 13; a through sliding groove 24 is arranged at the side part of the sliding cavity 21, and the sliding groove 24 is matched with the needle 11; and a sliding cavity clamping groove 25 is also formed in the top of the inner side of the sliding cavity 21.
As shown in fig. 1, an automatic retraction device for a port needle for transfusion comprises a port needle body 1, a port needle seat body 2 and a spring; the clamping seat 12 of the port needle body 1 can be freely and slidably arranged in the sliding cavity 21 of the port needle seat body 2, the front part of the needle head 11 of the port needle body 1 can freely penetrate out of and retract into the bottom hole 22, the rear part of the needle head 11 and the infusion tube 10 can be freely and slidably arranged at the sliding groove 24, and the push rod 13 can be freely and slidably arranged at the top hole 23; the spring is positioned in the sliding cavity 21, one end of the spring is fixedly connected with the port needle body 1, and the other end of the spring is fixedly connected to the inner wall of the sliding cavity 21; so that the tip of the needle 11 can be retracted into the slide cavity 21 by the tension spring 3 after the front part of the needle 11 is extended out of the bottom hole 22.
In some embodiments, the spring is a tension spring 3, the tension spring 3 is nested on the push rod 13, one end of the tension spring 3 is fixedly installed in the sliding cavity clamping groove 25, and the other end is fixedly installed in the clamping seat clamping groove 121; so that the tip of the needle 11 can be retracted into the slide cavity 21 by the tension spring 3 after the front part of the needle 11 is extended out of the bottom hole 22.
In some embodiments, the spring is a compression spring, one end of the compression spring is fixedly installed at the bottom of the sliding cavity 21, and the other end of the compression spring is fixedly connected to the bottom of the clamping seat 12 of the port needle body 1.
In some embodiments, the spring comprises a tension spring 3 and a compression spring, the tension spring 3 is nested on the push rod 13, one end of the tension spring 3 is fixedly installed in the sliding cavity clamping groove 25, and the other end is fixedly installed in the clamping seat clamping groove 121; one end of the pressure spring is fixedly arranged at the bottom of the sliding cavity 21, and the other end of the pressure spring is fixedly connected to the bottom of the clamping seat 12 of the harbor needle body 1.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A transfusion port needle comprises a port needle body (1), and is characterized in that the port needle body (1) is provided with a transfusion tube (10), a needle head (11), a clamping seat (12) and a push rod (13); the bent part of the needle head (11) is fixedly embedded in the clamping seat (12); the infusion tube (10) is communicated with the tail part of the needle head (11); the upper end of the clamping seat (12) is provided with a push rod (13).
2. The port needle for infusion according to claim 1, wherein said cartridge (12) is provided at an upper end thereof with a cartridge catching groove (121).
3. The port needle for infusion as claimed in claim 1 or 2, wherein the push rod (13) has a pushing portion (131) at its tip.
4. The port needle for infusion according to claim 3, wherein said pushing portion (131) is an arc-shaped surface pushing head.
5. A port needle seat for transfusion, which is characterized by comprising a port needle seat body (2), wherein the port needle seat body (2) consists of a left seat and a right seat, a sliding cavity (21) is arranged in the port needle seat body (2), and the sliding cavity (21) is matched with the clamping seat (12) according to any one of claims 1 to 4; a through bottom hole (22) is formed in the bottom of the sliding cavity (21), and the bottom hole (22) is matched with the needle head (11) of any one of claims 1-4; the top of the sliding cavity (21) is provided with a through top hole (23), and the top hole (23) is matched with the push rod (13) of any one of claims 1 to 4; a through sliding groove (24) is formed in the side of the sliding cavity (21), and the sliding groove (24) is matched with the needle head (11) of any one of claims 1-4; the top of the inner side of the sliding cavity (21) is also provided with a sliding cavity clamping groove (25).
6. An automatic retraction device for an infusion port, characterized by comprising the port needle body (1) of claim 4, the port needle holder body (2) of claim 5 and a spring; the clamping seat (12) of the port needle body (1) can be freely and slidably arranged in the sliding cavity (21) of the port needle seat body (2), the front part of the needle head (11) of the port needle body (1) can freely penetrate out of and retract into the bottom hole (22), the rear part of the needle head (11) and the infusion tube (10) can be freely and slidably arranged at the sliding groove (24), and the push rod (13) can be freely and slidably arranged at the top hole (23); the spring is positioned in the sliding cavity (21), one end of the spring is fixedly connected with the port needle body (1), and the other end of the spring is fixedly connected to the inner wall of the sliding cavity (21); when the front part of the needle (11) extends out of the bottom hole (22), the needle tip of the needle (11) can be retracted into the sliding cavity (21) under the action of the tension spring (3).
7. The automatic retraction device of the port needle for transfusion as claimed in claim 6, wherein the spring is a tension spring (3), the tension spring (3) is nested on the push rod (13), one end of the tension spring (3) is fixedly installed in the slide cavity slot (25), and the other end is fixedly installed in the cassette slot (121); when the front part of the needle (11) extends out of the bottom hole (22), the needle tip of the needle (11) can be retracted into the sliding cavity (21) under the action of the tension spring (3).
8. The automatic retraction device of the port needle for transfusion as claimed in claim 6, wherein the spring is a compression spring, one end of the compression spring is fixedly installed at the bottom of the sliding cavity (21), and the other end of the compression spring is fixedly connected to the bottom of the cassette (12) of the port needle body (1).
9. The automatic retraction device of the port needle for transfusion as claimed in claim 6, wherein the spring comprises a tension spring (3) and a compression spring, the tension spring (3) is nested on the push rod (13), one end of the tension spring (3) is fixedly installed in the sliding cavity slot (25), and the other end is fixedly installed in the cassette slot (121); one end of the pressure spring is fixedly arranged at the bottom of the sliding cavity (21), and the other end of the pressure spring is fixedly connected to the bottom of the clamping seat (12) of the harbor needle body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120490699.XU CN215023971U (en) | 2021-03-08 | 2021-03-08 | Port needle, port needle seat and automatic port needle retraction device for infusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120490699.XU CN215023971U (en) | 2021-03-08 | 2021-03-08 | Port needle, port needle seat and automatic port needle retraction device for infusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215023971U true CN215023971U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120490699.XU Active CN215023971U (en) | 2021-03-08 | 2021-03-08 | Port needle, port needle seat and automatic port needle retraction device for infusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215023971U (en) |
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2021
- 2021-03-08 CN CN202120490699.XU patent/CN215023971U/en active Active
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