CN215017368U - Electrode syringe needle - Google Patents
Electrode syringe needle Download PDFInfo
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- CN215017368U CN215017368U CN202120201245.6U CN202120201245U CN215017368U CN 215017368 U CN215017368 U CN 215017368U CN 202120201245 U CN202120201245 U CN 202120201245U CN 215017368 U CN215017368 U CN 215017368U
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Abstract
The utility model provides an electrode injection needle, which comprises a first half needle head, a second half needle head and a needle seat, wherein the ends of the first half needle head and the second half needle head are fixedly connected with the needle seat; the first half needle head and the second half needle head are made of conductive materials, and an insulating seam is arranged between the first half needle head and the second half needle head so as to enable the first half needle head and the second half needle head to be insulated. The utility model discloses can set up two insulated electrodes of each other on the syringe needle with comparatively simple and convenient mode, be convenient for detect different tissue organ getting into human in-process.
Description
Technical Field
The utility model relates to the field of medical equipment, especially an electrode syringe needle.
Background
Chinese patent document CN110522956B radio frequency feedback intelligent injector and CN110507867B feedback intelligent injector describe an intelligent injection and extraction injector, which can measure the impedance of skin, muscle, effusion and blood and other tissues and organs accurately through the electrodes arranged on the needle, and according to the impedance change of fat, muscle, body fluid, blood, spinal fluid and other tissues, the needle can detect the injection position or the extracted tissue accurately, and at the same time, the reconstructed image is restored or the prompt is given through the specific algorithm, so that the injection or extraction process is more accurate. The scheme of arranging the plating layer is adopted to form the electrode, but the scheme usually adopts a vapor deposition method to arrange the plating layer, so that the realization cost is high, an insulating layer and a conducting layer need to be alternately formed, the processing cost is high, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an electrode syringe needle is provided, can realize insulating and be convenient for draw forth two at least electrodes of each other fast on the syringe needle.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: an electrode injection needle comprises a first half needle, a second half needle and a needle seat, wherein the ends of the first half needle and the second half needle are fixedly connected with the needle seat;
the first half needle head and the second half needle head are made of conductive materials, and an insulating seam is arranged between the first half needle head and the second half needle head so as to enable the first half needle head and the second half needle head to be insulated.
In a preferred embodiment, the cross-section of the first half-needle and the second half-needle forms two semi-circles bisecting along the axis.
In a preferred scheme, electrode contacts are arranged at the positions, close to the needle base, of the outer walls of the first half needle and the second half needle and are used for being electrically connected with the first connecting electrode and the second connecting electrode of the electrode connecting rings respectively.
In a preferred scheme, the electrode contacts protrude out of the outer walls of the first half needle and the second half needle.
In a preferred embodiment, the top surface of the electrode contact is wedge-shaped for pressing against the inner wall of the electrode connecting ring.
In the preferred scheme, an inner insulating layer is arranged on the inner walls of the first half needle head and the second half needle head, and the inner insulating layer and the insulating seam are of an integral structure.
In the preferred scheme, an outer insulating layer is arranged on the outer walls of the first half needle head and the second half needle head, the outer insulating layer and the insulating seam are in an integral structure, the first half needle head and the second half needle head are exposed at the position close to the needle point, and the rest parts of the first half needle head and the second half needle head are covered by the outer insulating layer and the inner insulating layer, so that the first half needle head and the second half needle head conduct electricity at the position of the needle point.
In a preferred scheme, the outer walls of the first half needle and the second half needle are exposed.
In a preferred scheme, the inner walls of the first half needle and the second half needle are exposed.
In a preferred scheme, the outer wall and the inner wall of the first half needle and the second half needle are exposed.
A mould used for preparing the electrode injection needle head comprises a lower mould, an upper mould and a core mould;
the lower die is provided with a first needle cavity, a second needle cavity and a core die cavity, and the first needle cavity, the second needle cavity and the core die cavity are of blind hole structures with open tops;
and the upper die and the lower die are separated at the positions of the electrode contacts of the first half needle head and the second half needle head.
Preferably, the upper die is of a cylindrical structure, the inner wall of the upper die close to the needle head is in contact with the outer walls of the first half needle head and the second half needle head, the bottom of the upper die is provided with a step to accommodate the electrode contact, and the inner wall of the step is in contact with the outer wall of the electrode contact;
except for the contact position, an outer insulating layer die cavity is arranged in front of the inner wall of the upper die and the outer walls of the first half needle head and the second half needle head;
and a gap is arranged between the core mould and the first half needle head and between the core mould and the second half needle head, and is used for forming an inner insulating layer.
Preferably, an inner insulating layer die cavity is arranged between the inner walls of the first half needle head and the second half needle head and the inner walls of the first needle head cavity and the second needle head cavity.
Preferably, a positioning sleeve is arranged between the lower die and the upper die, and coaxial positioning is carried out through the positioning sleeve.
Preferably, the first half needle head and the second half needle head are fixedly connected with the first needle head cavity and the second needle head cavity of the lower die respectively.
A preparation method for preparing the electrode injection needle by adopting the mould comprises the following steps:
s1, manufacturing a first half needle head and a second half needle head;
s2, performing surface treatment on the first half needle head and the second half needle head;
s3, inserting the first half needle head and the second half needle head into the lower die, inserting the core die into the lower die, and installing the upper die;
s4, resin pouring and curing;
s5, demolding the needle head, and mounting the needle seat;
the preparation of the electrode injection needle is realized through the steps.
The utility model provides an electrode syringe needle, through adopting foretell scheme, can set up two insulated electrodes of each other with comparatively simple and convenient mode on the syringe needle, be convenient for detect different tissue organs. The utility model discloses an it is with low costs to realize, and production efficiency is high.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is an explosion diagram of the overall structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a front view of the present invention in use.
Fig. 4 is a cross-sectional view of the utility model during casting.
Fig. 5 is a top view of the middle and lower molds of the present invention.
Fig. 6 is a process flow chart of the preparation method of the present invention.
In the figure: the needle comprises a first half needle 1, a second half needle 2, an electrode contact 3, a needle seat 4, an insulation seam 5, an inner insulation layer 6, an outer insulation layer 7, an electrode connecting ring 8, a first connecting electrode 81, a second connecting electrode 82, a lower die 9, a first needle cavity 91, a second needle cavity 92, a core die cavity 93, an inner insulation layer die cavity 94, an upper die 10, an outer insulation layer die cavity 101, a core die 11 and a positioning sleeve 12.
Detailed Description
Example 1:
as shown in fig. 1 to 3, an electrode injection needle comprises a first half needle 1, a second half needle 2 and a needle base 4, wherein the ends of the first half needle 1 and the second half needle 2 are fixedly connected with the needle base 4;
first half syringe needle 1 and second half syringe needle 2 are electrically conductive material, are equipped with insulating seam 5 between first half syringe needle 1 and second half syringe needle 2 to make and insulate between first half syringe needle 1 and the second half syringe needle 2.
As shown in fig. 1-2, the cross-section of the first half needle 1 and the second half needle 2 forms two semi-circles which are cut along the axis, which is not necessarily illustrated, but is only for convenience of description, and is not necessarily two symmetrical semi-circles, and preferably, one of the first half needle 1 or the second half needle 2 has a larger arc and the other has a smaller arc, so that the tip of the needle is located at one of the first half needle 1 and the second half needle 2. The utility model discloses with whole syringe needle bisection become the structure of first half syringe needle 1 and second half syringe needle 2, constitute two independent electrodes, it is insulating between first half syringe needle 1 and the second half syringe needle 2 to make through the insulating seam 5 that sets up, the process of adding cladding material for the syringe needle has been reduced, wherein first half syringe needle 1 and second half syringe needle 2 can generate through the punching press, and insulating seam 5 generates through the pouring to simplify processing technology by a wide margin, improve the preparation efficiency, reduction in production cost.
As shown in fig. 1-2, it is preferable that electrode contacts 3 are provided on the outer walls of the first and second needle halves 1 and 2 near the hub 4 for electrical connection with the first and second connection electrodes 81 and 82 of the electrode connection ring 8, respectively. With this structure, reliable connection with the electrode connecting ring 8 is facilitated, and positioning is also facilitated. When in use, the electrode connecting ring 8 is directly sleeved at the root part of the needle, wherein the electrode connecting ring 8 can be made into a disposable structure by a connector and can also be reused after being sterilized.
In the preferred embodiment, as shown in fig. 1-2, the electrode contacts 3 protrude from the outer wall of the first half-needle 1 and the second half-needle 2.
Preferably, as shown in fig. 2 and 3, the top surface of the electrode contact 3 is wedge-shaped for pressing against the inner wall of the electrode connecting ring 8. The top surfaces of the electrode contacts 3 refer to the arc-shaped surfaces of the electrode contacts 3 on the left and right in fig. 2 and 3.
The preferable scheme is as shown in figures 1-3, an inner insulating layer 6 is arranged on the inner walls of the first half needle head 1 and the second half needle head 2, and the inner insulating layer 6 and the insulating seam 5 are of an integral structure. The inner insulating layer 6 is provided to avoid interference of fluid or tissue in the needle's inner tube.
The preferable scheme is as shown in fig. 1-3, an outer insulating layer 7 is arranged on the outer wall of the first half needle head 1 and the outer wall of the second half needle head 2, the outer insulating layer 7 and the insulating seam 5 are of an integral structure, the first half needle head 1 and the second half needle head 2 are exposed at the position close to the needle point, and the rest part of the first half needle head 1 and the second half needle head 2 is covered by the outer insulating layer 7 and the inner insulating layer 6, so that the first half needle head 1 and the second half needle head 2 are conductive at the position of the needle point.
In a preferred scheme, the outer walls of the first half needle 1 and the second half needle 2 are exposed. With the structure, the detection of the human tissue contacted by the outer wall at the needle point position is convenient.
In a preferred scheme, the inner walls of the first half needle 1 and the second half needle 2 are exposed. With the structure, the human tissue contacted by the inner wall at the needle point position is convenient to detect.
In a preferred scheme, the outer wall and the inner wall of the first half needle 1 and the second half needle 2 are exposed. With the structure, the human tissue contacted by the outer wall and the inner wall at the needle point position can be detected conveniently and simultaneously.
The electrode injection needle of the utility model greatly simplifies the process of arranging the electrode on the needle, and reduces the manufacturing and using cost.
Example 2:
in connection with embodiment 1, as shown in fig. 4 and 5, a mold for preparing the above-mentioned electrode injection needle comprises a lower mold 9, an upper mold 10 and a core mold 11;
the lower die 9 is provided with a first needle cavity 91, a second needle cavity 92 and a core die cavity 93, and the first needle cavity 91, the second needle cavity 92 and the core die cavity 93 are all of blind hole structures with open tops;
the upper mold 10 and the lower mold 9 are separated at the positions of the electrode contacts 3 of the first needle half 1 and the second needle half 2. With the structure, the first half needle head 1, the second half needle head 2, the inner insulating layer 6, the outer insulating layer 7 and the insulating seam 5 are integrated into a whole by one-time pouring, so that the process is simplified.
Preferably, as shown in fig. 4 and 5, the upper die 10 is a cylindrical structure, the inner wall of the upper die 10 near the needle contacts with the outer walls of the first half needle 1 and the second half needle 2, the bottom of the upper die 10 is provided with a step to accommodate the electrode contact 3, and the inner wall of the step contacts with the outer wall of the electrode contact 3; with the structure, the outer wall of the needle tip and the outer wall of the electrode contact 3 are exposed after casting. Except for the contact position, an outer insulating layer die cavity 101 is arranged in front of the inner wall of the upper die 10 and the outer walls of the first half needle head 1 and the second half needle head 2; with this structure, the outer insulating layer 7 is formed.
A gap is arranged between the core mould 11 and the first half needle head 1 and the second half needle head 2 for forming the inner insulating layer 6.
Preferably, as shown in fig. 4, an inner insulation layer cavity 94 is provided between the inner walls of the first needle half 1 and the second needle half 2 and the inner walls of the first needle cavity 91 and the second needle cavity 92. With this structure, the inner insulating layer 6 for forming the bottom position of the needle is formed.
Preferably, as shown in fig. 4, a positioning sleeve 12 is provided between the lower die 9 and the upper die 10, and the positioning sleeve 12 is used to perform coaxial positioning. The positioning sleeve 12 is located at the outer wall of the lower die 9 and the upper die 10. Compared with the positioning pin structure in the prior art, the structure of the whole die can be simplified, the size of the die is reduced, and the positioning precision can be improved.
Preferably, the first half needle 1 and the second half needle 2 are fixedly connected with the first needle cavity 91 and the second needle cavity 92 of the lower die 9, respectively.
Example 3:
on the basis of the embodiments 1 and 2, a method for preparing the electrode injection needle by using the mould comprises the following steps:
s1, manufacturing a first half needle head 1 and a second half needle head 2; the first half needle 1 and the second half needle 2 are made by stamping, preferably by medical stainless steel.
S2, performing surface treatment on the first half needle head 1 and the second half needle head 2; the surface treatment comprises one or more of acid cleaning, phosphorization and surface sand blasting, so as to improve the surface roughness of the first half needle head 1 and the second half needle head 2 and remove an oxide layer on the surface.
S3, inserting the first half needle head 1 and the second half needle head 2 into the lower die 9, inserting the core die 11 into the lower die 9, and installing the upper die 10; preferably, the positioning sleeve 12 is inserted so that the upper die 10 and the lower die 9 are coaxial.
S4, resin pouring and curing; the resin is poured from the position of the insulating seam 5 on two sides simultaneously, and the curing is preferably ultraviolet light curing. The resin is polytetrafluoroethylene, polymethyl methacrylate or acrylic resin.
S5, demolding the needle head, and installing the needle seat 4;
the preparation of the electrode injection needle is realized through the steps.
When the electrode connection ring 8 is sleeved on the needle head, the first connection electrode 81 is in contact with the electrode contact 3 of the first half needle head 1, the second connection electrode 82 is in contact with the electrode contact 3 of the second half needle head 2, when the needle head enters a body, radio frequency current is applied to the first connection electrode 81, detection is carried out on the second connection electrode 82, and therefore tissue and organs can be accurately detected through the needle head.
The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (10)
1. An electrode syringe needle, characterized by: the needle comprises a first half needle head (1), a second half needle head (2) and a needle seat (4), wherein the ends of the first half needle head (1) and the second half needle head (2) are fixedly connected with the needle seat (4);
first half syringe needle (1) and second half syringe needle (2) are electrically conductive material, are equipped with insulating seam (5) between first half syringe needle (1) and second half syringe needle (2) to make and insulate between first half syringe needle (1) and second half syringe needle (2).
2. An electrode needle according to claim 1, wherein: the cross sections of the first half needle head (1) and the second half needle head (2) form two semi-circles which are bisected along the axis.
3. An electrode needle according to claim 1, wherein: electrode contacts (3) are arranged at the positions of the outer walls of the first half needle head (1) and the second half needle head (2) close to the needle seat (4) and are respectively and electrically connected with a first connecting electrode (81) and a second connecting electrode (82) of an electrode connecting ring (8).
4. An electrode needle according to claim 1, wherein: the electrode contact (3) protrudes out of the outer walls of the first half needle head (1) and the second half needle head (2).
5. An electrode needle according to claim 1, wherein: the top surface of the electrode contact (3) is wedge-shaped and is used for being pressed with the inner wall of the electrode connecting ring (8).
6. An electrode needle according to claim 1, wherein: an inner insulating layer (6) is arranged on the inner walls of the first half needle head (1) and the second half needle head (2), and the inner insulating layer (6) and the insulating seam (5) are of an integral structure.
7. An electrode needle according to claim 6, wherein: the outer wall of the first half needle head (1) and the outer wall of the second half needle head (2) are provided with an outer insulating layer (7), the outer insulating layer (7) and the insulating seam (5) are of an integral structure, the first half needle head (1) and the second half needle head (2) are exposed at the position close to the needle point, and the rest part of the first half needle head (1) and the second half needle head (2) are covered by the outer insulating layer (7) and the inner insulating layer (6), so that the first half needle head (1) and the second half needle head (2) are conductive at the position of the needle point.
8. An electrode needle according to claim 6, wherein: the outer walls of the first half needle head (1) and the second half needle head (2) are exposed.
9. An electrode needle according to claim 6, wherein: the inner walls of the first half needle head (1) and the second half needle head (2) are exposed.
10. An electrode needle according to claim 6, wherein: the outer walls and the inner walls of the first half needle head (1) and the second half needle head (2) are exposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120201245.6U CN215017368U (en) | 2021-01-25 | 2021-01-25 | Electrode syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120201245.6U CN215017368U (en) | 2021-01-25 | 2021-01-25 | Electrode syringe needle |
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| Publication Number | Publication Date |
|---|---|
| CN215017368U true CN215017368U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120201245.6U Active CN215017368U (en) | 2021-01-25 | 2021-01-25 | Electrode syringe needle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112754453A (en) * | 2021-01-25 | 2021-05-07 | 武汉中针智能科技有限公司 | Intelligent injection needle structure, mold and preparation method |
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2021
- 2021-01-25 CN CN202120201245.6U patent/CN215017368U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112754453A (en) * | 2021-01-25 | 2021-05-07 | 武汉中针智能科技有限公司 | Intelligent injection needle structure, mold and preparation method |
| CN112754453B (en) * | 2021-01-25 | 2024-03-08 | 武汉中针智能科技有限公司 | Intelligent injection needle structure, mould and preparation method |
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