CN219700675U - Transfusion harbor with positioning and needle pulling functions - Google Patents
Transfusion harbor with positioning and needle pulling functions Download PDFInfo
- Publication number
- CN219700675U CN219700675U CN202320330885.6U CN202320330885U CN219700675U CN 219700675 U CN219700675 U CN 219700675U CN 202320330885 U CN202320330885 U CN 202320330885U CN 219700675 U CN219700675 U CN 219700675U
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- sleeve
- puncture
- needle
- driving
- positioning
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- 244000241796 Christia obcordata Species 0.000 claims abstract description 36
- 238000001802 infusion Methods 0.000 claims abstract description 11
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000001727 in vivo Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000338 in vitro Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Abstract
The utility model aims to provide an infusion port with positioning and needle pulling functions, which is used for solving the problems that the puncture depth of a butterfly wing needle in the prior art is inconsistent and medical staff is easy to stab. Comprises a port body and a first sleeve; the puncture needle assembly comprises a first sliding block sliding along the inner wall of the first sleeve and a butterfly wing needle arranged on the first sliding block and used for puncturing the port body; the positioning assembly comprises a plurality of arc-shaped positioning plates which are arranged at the bottom end of the first sleeve and used for positioning the outer contour of the port; the driving assembly comprises a second sliding block which is arranged in the first sleeve in a sliding manner, a contact pin which is arranged at the bottom end surface of the second sliding block and used for being inserted into the top end surface of the first sliding block, and a puncture driving block which is used for driving the puncture needle assembly to slide downwards and separate from the contact pin during puncture. According to the utility model, the driving assembly drives the butterfly wing needle to puncture the port body, so that the puncture depth of the butterfly wing needle is ensured, and meanwhile, the butterfly wing needle is prevented from puncturing medical staff and patients.
Description
Technical Field
The utility model belongs to the field of medical equipment, and particularly relates to an infusion port with positioning and needle pulling functions.
Background
The infusion port consists of an in-vivo part implanted into a human body and an in-vitro part connected with the in-vivo part, wherein the in-vivo part comprises a port body and a catheter communicated with veins, and the in-vitro part comprises a non-invasive puncture needle which is inserted into the port body for infusion treatment when in use, and the pain and risk of repeated intravenous puncture of a patient who infuses for a long time and multiple times are reduced through a reliable and stable vein channel.
The existing nondestructive puncture needle mainly adopts a butterfly wing needle, medical staff is required to clamp the port body firstly during transfusion, then the butterfly wing needle is inserted into the center position of the port body, and after transfusion is completed, the medical staff is required to clamp the port body firstly, and then the butterfly wing needle is pulled out of the port body. In the operation process, medical staff is required to be tightly matched with two hands, and the butterfly wing needle is difficult to accurately insert into the center of the port body.
Aiming at the technical problems, the utility model patent with the application publication number of CN112451796A discloses a transfusion harbor needle with positioning, and the application discloses that the butterfly wing needle is arranged on a positioning frame with a plurality of positioning plates, so that the butterfly wing needle can be rapidly positioned to the center of a harbor body, the operation difficulty of medical staff is reduced, but the application needs manual operation of medical staff in the puncturing and needle pulling processes of the butterfly wing needle, the puncturing depth is difficult to ensure, and the butterfly wing needle is extremely easy to stab patients and medical staff.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide an infusion port with positioning and needle pulling functions, which is used for solving the problems that the penetration depth of the butterfly wing needle in the prior art is inconsistent and medical staff is easy to be pricked.
To achieve the above and other related objects, the present utility model provides an infusion port with positioning and needle pulling functions, including a port body and a first sleeve;
the puncture needle assembly comprises a first sliding block sliding along the inner wall of the first sleeve and a butterfly wing needle arranged on the first sliding block and used for puncturing the port body;
the positioning assembly comprises a plurality of arc-shaped positioning plates which are arranged at the bottom end of the first sleeve and used for positioning the outer contour of the port;
the driving assembly comprises a second sliding block which is arranged in the first sleeve in a sliding manner, a contact pin which is arranged at the bottom end face of the second sliding block and used for being inserted into the top end face of the first sliding block, and a puncture driving block which is used for driving the puncture needle assembly to slide downwards and separate from the contact pin during puncture, wherein the puncture driving block penetrates through the top end face of the first sleeve and slides up and down along the axis direction of the first sleeve.
As an alternative scheme, the butterfly wing needle is an inverted L-shaped puncture needle, and the first sliding block is made of rubber;
the axis that the butterfly wing needle is used for puncture one end coincides with first sleeve axis, the butterfly wing needle is used for connecting one end and stretches out first telescopic lateral wall, set up the first spout of dodging the butterfly wing needle on the telescopic lateral wall of first.
As an alternative scheme, the locating component still includes the ring mounting panel of installing first sleeve bottom, with a plurality of arc locating plates equiangular installations of port external surface laminating in ring mounting panel bottom.
As an alternative scheme, the driving assembly further comprises a first spring, a second sleeve, a first guide rod, a circular driving plate, an annular limiting plate, an annular driving plate, a second spring and a limiting module;
the first spring and the second sleeve are both arranged on the top end face of the second sliding block, the first spring is positioned in the second sleeve, the first guide rod slides along the inner wall of the second sleeve, and the bottom end of the first guide rod is fixedly connected with one end of the first spring;
the top end of the first guide rod is provided with a circular driving plate, the first guide rod between the circular driving plate and the second sleeve is provided with an annular limiting plate, the second sleeve between the annular limiting plate and the first sleeve and the outer wall of the first guide rod are sleeved with a second spring, the first guide rod between the annular limiting plate and the circular driving plate is sleeved with an annular driving plate in a sliding manner, and the top end of the puncture driving block is fixedly connected to the lower end face of the annular driving plate;
and the limiting modules are arranged on the inner wall of the first sleeve below the second sliding block, and the puncture driving block drives the limiting modules to limit the second sliding block along the radial sliding of the first sleeve when sliding downwards.
As an alternative scheme, the limiting modules comprise a second guide rod, limiting blocks and a third spring;
the second guide rod is fixedly connected to the inner wall of the first sleeve, a limiting block for limiting the second sliding block is arranged on the first guide rod in a sliding mode, the third spring is sleeved on the outer wall of the second guide rod, and two ends of the third spring are fixedly connected with the limiting block and the inner wall of the first sleeve respectively.
As an alternative scheme, the bottom of the side of the driving block, which is close to the limiting block, is provided with a first guiding inclined plane, and the top of the side of the limiting block, which is close to the driving block, is provided with a second guiding inclined plane.
As an alternative scheme, the top end surface of the annular driving plate is carved with a puncture button font, and the top end surface of the circular driving plate is carved with a needle pulling button font.
As described above, the transfusion harbor with the positioning and needle pulling functions has at least the following beneficial effects:
1. according to the utility model, the butterfly wing needle is driven by the driving assembly to puncture the port body, so that the puncture depth of the butterfly wing needle is ensured, and the operation difficulty of medical staff is reduced.
2. According to the utility model, before puncture and after infusion is completed, the butterfly wing needle is always positioned in the first sleeve, so that the risk of stabbing medical staff and patients is avoided.
3. According to the utility model, the outer contours of the port body are positioned by arranging the arc-shaped positioning plates, medical staff is not required to clamp the port body during puncturing and needle pulling, and meanwhile, the butterfly wing needle can be rapidly positioned to the center of the port body, so that the operation difficulty is reduced, and unnecessary pain caused by inaccurate positioning and repeated puncturing to a patient is avoided.
Drawings
Fig. 1 shows a schematic structure of the present utility model.
FIG. 2 is a schematic view showing the structure of the port body according to the present utility model.
Fig. 3 is a schematic view showing the structure of the puncture needle assembly according to the present utility model.
Fig. 4 is a schematic structural view of the first sleeve and the positioning assembly according to the present utility model.
Fig. 5 shows a cross-sectional view of the first sleeve, needle assembly and drive assembly of the present utility model.
Fig. 6 shows a partial view of the drive assembly of the present utility model.
Fig. 7 is a schematic structural view of the puncture driving block and the limiting module according to the present utility model.
In the figure: 1-harbor body; 101-harbor body; 102-piercing a septum; 103-a liquid outlet; 104-a first conduit;
2-a first sleeve;
3-a lancet assembly; 301-a first slider; 302-butterfly wing needle; 303-a first chute; 304-a second conduit;
4-positioning assembly; 401-arc-shaped positioning plates; 402-a circular ring mounting plate;
a 5-drive assembly; 501-a second slider; 502-pins; 503-puncturing the driving block; 504-a first spring; 505-a second sleeve; 506-a first guide bar; 507-circular drive plate; 508-an annular limiting plate; 509-an annular drive plate; 510-a second spring; 511-a limit module; 5031-a first guide ramp; 5051-a limit boss; 5111-second guide bar; 5112-a stopper; 5113-a third spring; 5114-second guiding ramp.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
Please refer to fig. 1 to 7. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
The following examples are given by way of illustration only. Various embodiments may be combined and are not limited to only what is presented in the following single embodiment.
In this embodiment, referring to fig. 1, 3, 4 and 5, the present utility model provides an infusion port with positioning and needle pulling functions, which includes a port body 1 and a first sleeve 2;
a puncture needle assembly 3, wherein the puncture needle assembly 3 comprises a first sliding block 301 sliding along the inner wall of the first sleeve 2, and a butterfly wing needle 302 which is arranged on the first sliding block 301 and used for puncturing the port body 1;
the positioning assembly 4 comprises a plurality of arc-shaped positioning plates 401 which are arranged at the bottom end of the first sleeve 2 and used for positioning the outer contour of the port body 1;
the driving assembly 5, the driving assembly 5 includes a second slider 501 slidably disposed in the first sleeve 2, a pin 502 installed at a bottom end surface of the second slider 501 and used for being inserted into a top end surface of the first slider 301, and a puncture driving block 503 for driving the puncture needle assembly 3 to slide downwards and separate from the pin 502 during puncture, where the puncture driving block 503 penetrates through the top end surface of the first sleeve 2 and slides upwards and downwards along an axial direction of the first sleeve 2.
In this example, referring to fig. 2, the port body 1 includes a port body 101, a puncture diaphragm 102 is disposed at an opening at a top end of the port body 101, a liquid outlet 103 is disposed at a lower end of the port body 101, and the liquid outlet 103 is connected to a first catheter 104.
In this example, referring to fig. 3 and 4, the winged needle 302 is an inverted L-shaped lancet, and the first slider 301 is made of rubber;
the axis that the butterfly wing needle 302 is used for puncture one end coincides with first sleeve 2 axis, the butterfly wing needle 1 is used for connecting one end and stretches out first sleeve 2's lateral wall, first spout 303 that dodges the butterfly wing needle 1 has been seted up on first sleeve 2's the lateral wall.
In this example, the butterfly wing needle 302 is a special curved puncture needle with a "turning point" and a longer needle tip inclined plane, so that the damage of puncture to the injection seat puncture membrane caused by puncture can be effectively reduced, the butterfly wing needle 302 is connected with the second conduit 304, the second conduit 304 is connected with the infusion device, the first sliding block 301 is made of rubber, so that the first sliding block is convenient to slide in the first sleeve 2 quickly, and meanwhile, the contact pin 502 is ensured to not fall easily when no external force acts after being inserted into the first sliding block 301.
In this example, the positioning assembly further includes a circular ring mounting plate 402 mounted at the bottom end of the first sleeve 2, and a plurality of arc-shaped positioning plates 401 attached to the outer surface of the port body are mounted at the bottom end of the circular ring mounting plate 402 in equal angles.
In this example, referring to fig. 4, the number of the arc-shaped positioning plates 401 is 4, the shape of the arc-shaped positioning plates 401 is adapted to the outer contour of the port body 101, which together form a flared opening, and one end of the opening is a larger end of the horn, when in use, the arc-shaped positioning plates 401 move downward to rapidly complete positioning and limiting of the port body 101.
In this example, referring to fig. 5 and 6, the driving assembly further includes a first spring 504, a second sleeve 505, a first guide rod 506, a circular driving plate 507, an annular limiting plate 508, an annular driving plate 509, a second spring 510, and a limiting module 511;
the first spring 504 and the second sleeve 505 are both installed on the top end surface of the second slider 501, the first spring 504 is located in the second sleeve 505, the first guide rod 506 slides along the inner wall of the second sleeve 505, and the bottom end of the first guide rod 506 is fixedly connected with one end of the first spring 504;
the top end of the first guide rod 506 is provided with a circular driving plate 507, the first guide rod 15 between the circular driving plate 507 and the second sleeve 505 is provided with an annular limiting plate 508, the second sleeve 505 between the annular limiting plate 508 and the first sleeve 2 and the outer wall of the first guide rod 506 are sleeved with a second spring 510, the first guide rod 506 between the annular limiting plate 508 and the circular driving plate 507 is sleeved with an annular driving plate 509 in a sliding way, and the top end of the puncture driving block 503 is fixedly connected to the lower end face of the annular driving plate 509;
the limiting modules 511 are all disposed on the inner wall of the first sleeve 2 below the second slider 501, and when the puncture driving block 503 slides downward, the limiting modules 511 are driven to slide radially along the first sleeve 2 to limit the second slider 501.
In this example, a limiting boss 5051 is further disposed on the outer wall of the second sleeve 505 to limit the rotation of the second sleeve 505 and the second slider 501. The number of the limiting modules 511 is 2, which are respectively used for limiting two sides of the second slider 501.
In this example, referring to fig. 7, the limiting modules include a second guide rod 5111, a limiting block 5112, and a third spring 5113;
the second guide rod 5111 is fixedly connected to the inner wall of the first sleeve 2, a limiting block 5112 for limiting the second sliding block 501 is slidably arranged on the first guide rod 5111, a third spring 5113 is sleeved on the outer wall of the second guide rod 5111, and two ends of the third spring 5113 are fixedly connected with the limiting block 5112 and the inner wall of the first sleeve 2 respectively.
The bottom of the side of the driving block 503 close to the limiting block 5112 is provided with a first guiding inclined plane 5031, and the top of the side of the limiting block 5112 close to the driving block 503 is provided with a second guiding inclined plane 5114.
In this example, referring to fig. 5 and 7, initially, the puncture driving block 503 is located above the stopper 5112, the puncture driving block 503 moves downward, the first guiding inclined surface 5031 contacts with the second guiding inclined surface 5114, the puncture driving block 503 presses the stopper 5112 to move in a direction approaching to the central axis of the first sleeve 2, so that the stopper 5112 moves below the second slider 501, and in this example, when the stopper 5112 moves to the maximum stroke position (the vertical surface of the stopper 5112 contacts with the vertical surface of the puncture driving block 503), the distance between the lower surface of the second slider 501 and the upper surface of the stopper 5112 is 1cm.
In this example, the top surface of the annular driving plate 509 is engraved with a "puncture button" font, and the top surface of the circular driving plate 507 is engraved with a "needle pulling button" font.
In this example, the annular driving plate 509 and the circular driving plate 507 are made of plastic, the circular driving plate 507 and the first guide rod 506 are integrally injection molded, the annular driving plate 509 is separately injection molded, and the lettering module is put into the mold during injection molding to integrally mold the fonts.
In summary, the present utility model provides an infusion port with positioning and needle pulling functions, in which port body 1 is implanted in a patient at an initial time, port body 1 forms a protrusion on the skin, and needle assembly 3 is inserted into needle 502.
When in puncture transfusion, medical staff holds the first sleeve 2, places the arc-shaped positioning plate 401 on the port body 101 of a patient, presses downwards slightly to enable the arc-shaped positioning plate 401 to be attached to the skin of the patient to position the port body 101, the medical staff presses the annular driving plate 509 with the thumb, the annular driving plate 509 drives the puncture driving block 503, the second sliding block 501 and the puncture needle assembly to move downwards, the puncture driving block 503 is firstly contacted with the limiting block 5112, the limiting block 5112 is extruded to move below the second sliding block 501, the annular driving plate 509 continues to move downwards, the second sliding block 501 is abutted against the limiting block 5112, the first spring 504 is compressed, the puncture driving block 503 is abutted against the first sliding block 301, the puncture driving block 503 drives the butterfly wing needle 302 to be inserted into the patient, the first sliding block 301 is separated from the contact needle 502, when the annular limiting plate 508 is abutted against the second sleeve 505, puncture is completed, and the medical staff releases the arc-shaped positioning plate 401 to reset the device.
After the transfusion is completed, medical staff holds the first sleeve 2, places the arc-shaped positioning plate 401 on the port body 101 of the patient, lightly presses downwards to enable the arc-shaped positioning plate 401 to be attached to the skin of the patient to position the port body 101, presses the circular driving plate 507 with the thumb of the medical staff, inserts the contact pin 502 into the first sliding block 301, and releases the circular driving plate 507 to pull out the butterfly wing needle 302 on the body of the patient.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. An infusion port with positioning and needle pulling functions is characterized by comprising a port body and a first sleeve;
the puncture needle assembly comprises a first sliding block sliding along the inner wall of the first sleeve and a butterfly wing needle arranged on the first sliding block and used for puncturing the port body;
the positioning assembly comprises a plurality of arc-shaped positioning plates which are arranged at the bottom end of the first sleeve and used for positioning the outer contour of the port;
the driving assembly comprises a second sliding block which is arranged in the first sleeve in a sliding manner, a contact pin which is arranged at the bottom end face of the second sliding block and used for being inserted into the top end face of the first sliding block, and a puncture driving block which is used for driving the puncture needle assembly to slide downwards and separate from the contact pin during puncture, wherein the puncture driving block penetrates through the top end face of the first sleeve and slides up and down along the axis direction of the first sleeve.
2. The transfusion harbor with the positioning and needle pulling function according to claim 1, wherein the butterfly wing needle is an inverted L-shaped puncture needle, and the first slider is made of rubber;
the axis that the butterfly wing needle is used for puncture one end coincides with first sleeve axis, the butterfly wing needle is used for connecting one end and stretches out first telescopic lateral wall, set up the first spout of dodging the butterfly wing needle on the telescopic lateral wall of first.
3. The transfusion port with the positioning and needle pulling functions according to claim 1, wherein the positioning assembly further comprises a circular ring mounting plate arranged at the bottom end of the first sleeve, and a plurality of arc-shaped positioning plates attached to the outer surface of the port body are arranged at the bottom end of the circular ring mounting plate in equal angles.
4. The port of claim 1 wherein the drive assembly further comprises a first spring, a second sleeve, a first guide rod, a circular drive plate, an annular stop plate, an annular drive plate, a second spring, and a stop module;
the first spring and the second sleeve are both arranged on the top end face of the second sliding block, the first spring is positioned in the second sleeve, the first guide rod slides along the inner wall of the second sleeve, and the bottom end of the first guide rod is fixedly connected with one end of the first spring;
the top end of the first guide rod is provided with a circular driving plate, the first guide rod between the circular driving plate and the second sleeve is provided with an annular limiting plate, the second sleeve between the annular limiting plate and the first sleeve and the outer wall of the first guide rod are sleeved with a second spring, the first guide rod between the annular limiting plate and the circular driving plate is sleeved with an annular driving plate in a sliding manner, and the top end of the puncture driving block is fixedly connected to the lower end face of the annular driving plate;
and the limiting modules are arranged on the inner wall of the first sleeve below the second sliding block, and the puncture driving block drives the limiting modules to limit the second sliding block along the radial sliding of the first sleeve when sliding downwards.
5. The transfusion harbor with the positioning and needle pulling functions according to claim 4, wherein the limiting modules comprise a second guide rod, a limiting block and a third spring;
the second guide rod is fixedly connected to the inner wall of the first sleeve, a limiting block for limiting the second sliding block is arranged on the first guide rod in a sliding mode, the third spring is sleeved on the outer wall of the second guide rod, and two ends of the third spring are fixedly connected with the limiting block and the inner wall of the first sleeve respectively.
6. The port of claim 5, wherein a first guiding slope is provided at a bottom end of the side of the driving block adjacent to the limiting block, and a second guiding slope is provided at a top end of the side of the limiting block adjacent to the driving block.
7. The transfusion harbor with positioning and needle pulling functions according to claim 4, wherein the top end surface of the annular driving plate is carved with a 'puncture button' font, and the top end surface of the circular driving plate is carved with a 'needle pulling button' font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320330885.6U CN219700675U (en) | 2023-02-28 | 2023-02-28 | Transfusion harbor with positioning and needle pulling functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320330885.6U CN219700675U (en) | 2023-02-28 | 2023-02-28 | Transfusion harbor with positioning and needle pulling functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219700675U true CN219700675U (en) | 2023-09-19 |
Family
ID=87999069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320330885.6U Active CN219700675U (en) | 2023-02-28 | 2023-02-28 | Transfusion harbor with positioning and needle pulling functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219700675U (en) |
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2023
- 2023-02-28 CN CN202320330885.6U patent/CN219700675U/en active Active
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