CN219983720U - Puncture needle for test - Google Patents
Puncture needle for test Download PDFInfo
- Publication number
- CN219983720U CN219983720U CN202321446027.4U CN202321446027U CN219983720U CN 219983720 U CN219983720 U CN 219983720U CN 202321446027 U CN202321446027 U CN 202321446027U CN 219983720 U CN219983720 U CN 219983720U
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- CN
- China
- Prior art keywords
- needle
- test
- needle body
- handle
- stimulation
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- 238000012360 testing method Methods 0.000 title claims abstract description 77
- 230000000638 stimulation Effects 0.000 claims abstract description 39
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 27
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 230000004936 stimulating effect Effects 0.000 description 4
- 238000002513 implantation Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000007383 nerve stimulation Effects 0.000 description 1
- 208000004296 neuralgia Diseases 0.000 description 1
- 210000000578 peripheral nerve Anatomy 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The utility model discloses a puncture needle for testing, which comprises a first test needle and a second test needle, wherein the first test needle comprises a first needle body and a first handle which are mutually connected, the first needle body is axially provided with a through cavity, and a guide cavity communicated with the cavity is arranged in the first handle; the second test needle comprises a second needle body and a second handle which are connected with each other, the second needle body penetrates into the inner cavity of the first needle body through the guide cavity, and the second handle is detachably connected with the first handle; the first needle body and the second needle body are made of conductive materials, a first stimulation part is formed at the distal end of the first needle body, the first needle body and the second needle body are arranged in an insulating mode, the length of the second needle body is larger than that of the first needle body, the distal end of the second needle body is exposed out of the first needle body, and a second stimulation part is formed at the distal end of the second needle body. The puncture needle for testing provided by the utility model realizes that two points are tested simultaneously in one operation process.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to a puncture needle for testing.
Background
When the nerve stimulation system is used for treating peripheral nerve pain, the target nerve needs to be subjected to pre-electric stimulation, a puncture needle is usually adopted to enter the skin to perform pre-electric stimulation on a target spot, and an implantation electrode is implanted at the target spot after the implantation position is determined by communicating with a patient. The existing test puncture needle only carries out coating shielding on the external trocar, the stimulation point is only at the needle point part of the puncture needle which is only the internal needle, only one stimulation point is needed, only electric stimulation can be carried out on a single target, and the actual stimulation condition when the implanted electrode is bipolar can not be simulated.
Therefore, it is necessary to provide a puncture needle for testing, which can stimulate two points and is easy to use in a complex environment of human body.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a puncture needle for testing, which can stimulate two points and is easy to use in a complex environment of a human body.
In order to solve the technical problems, the utility model provides a puncture needle for testing, which comprises a first test needle and a second test needle, wherein the first test needle comprises a first needle body and a first handle which are mutually connected, the first needle body is axially provided with a through cavity, and the first handle is internally provided with a guide cavity communicated with the cavity; the second test needle comprises a second needle body and a second handle which are connected with each other, the second needle body penetrates into the inner cavity of the first needle body through the guide cavity, and the second handle is detachably connected with the first handle; the first needle body and the second needle body are made of conductive materials, a first stimulation part is formed at the distal end of the first needle body, the first needle body and the second needle body are arranged in an insulating mode, the length of the second needle body is larger than that of the first needle body, the distal end of the second needle body is exposed out of the first needle body, and a second stimulation part is formed at the distal end of the second needle body.
Further, a clamping groove is formed in the first handle, a second connecting portion is arranged on the second handle, a boss is arranged on the second connecting portion, the second connecting portion is inserted into the guide cavity, and the boss is arranged in the clamping groove, so that the first handle is in buckling connection with the second handle.
Further, the clamping groove is a waist-shaped hole, and the boss is made of elastic materials.
Further, the first needle body comprises a first stimulation part, a first insulation part and a first connection part from the distal end to the proximal end, and the outer surface of the first insulation part is coated with a first insulation layer.
Further, a first cable is included, and the first connection portion is electrically connected with the first cable.
Further, the second needle body comprises a second stimulation part and a second insulation part from the distal end to the proximal end, the outer surface of the second insulation part is coated with a second insulation layer, and the length of the second insulation part in the axial direction is longer than that of the first needle body in the axial direction.
Further, the needle comprises a second cable, a connecting cavity is formed in the second handle, and the second cable is connected with the second needle body through the connecting cavity.
Further, a first corrugation is arranged outside the first handle.
Further, a second corrugation is arranged outside the second handle.
Further, the second needle body is of a solid structure.
Compared with the prior art, the utility model has the following beneficial effects: the puncture needle for testing provided by the utility model is formed by inserting the second test needle into the first test needle, wherein the needle bodies of the first test needle and the second test needle are both electric conductors, the first needle body and the second needle body are arranged in an insulating way, the distal end of the second needle body is exposed out of the first needle body, and two stimulation parts are formed after the combination, so that two point positions are tested simultaneously in one operation process, and a doctor can find a target point more conveniently. Meanwhile, the actual stimulation condition of the bipolar electrode can be effectively simulated when the implanted electrode is bipolar.
Drawings
FIG. 1 is a schematic view showing the assembly of a test puncture needle and a connector according to an embodiment of the present utility model.
Fig. 2 is a schematic structural view of a first test needle according to an embodiment of the present utility model.
Fig. 3 is a schematic structural view of a second test needle according to an embodiment of the present utility model.
Fig. 4 is a schematic structural view of a puncture needle for testing according to an embodiment of the present utility model.
In the figure:
1-first test needle, 2-second test needle, 3-first cable, 4-second cable, 11-first needle body, 12-first handle, 111-first stimulation portion, 112-first insulation portion, 113-first connection portion, 121-clamping groove, 122-first ripple, 21-second needle body, 22-second handle, 211-second stimulation portion, 212-second insulation portion, 221-boss, 222-second ripple, 223-second connection portion, 224-grip portion.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Referring to fig. 1-4, the puncture needle for testing provided in this embodiment includes a first test needle 1 and a second test needle 2, the first test needle 1 includes a first needle body 11 and a first handle 12 that are connected to each other, a through cavity is disposed in the first needle body 11 along an axial direction thereof, and a guiding cavity is disposed in the first handle 12 and is communicated with the cavity. The first handle 12 is provided with a clamping groove 121, the second test needle 2 comprises a second needle body 21 and a second handle 22 which are connected with each other, the second needle body 21 penetrates into the inner cavity of the first needle body 11 through the guide cavity, and the second handle 22 is detachably connected with the first handle 12; the first needle body 11 and the second needle body 21 are made of conductive materials, a first stimulation part 111 is formed at the distal end of the first needle body 11, insulation is arranged between the first needle body 11 and the second needle body 21, the length of the second needle body 21 is larger than that of the first needle body 11, the distal end of the second needle body 21 is exposed out of the first needle body 11 to form a second stimulation part 211, and after the first test needle 1 and the second test needle 2 are respectively connected with a stimulator, two electric signals can be simultaneously or alternately emitted to realize stimulation on a target part.
Referring to fig. 1, 2 and 4, in one embodiment, the slot 121 on the first handle 12 is shaped as a waist-shaped hole. The first needle 11 includes a first stimulation portion 111, a first insulation portion 112, and a first connection portion 113 from the distal end to the proximal end. Further, the surface of the first insulating portion 112 is coated with a first insulating layer for shielding the electrical stimulation signal in the first insulating portion 112, so as to ensure that the electrical signal transmission is concentrated at the distal needle head portion of the first test needle 1, i.e. the first stimulation portion 111, without covering the whole of the first test needle 1. The first connection portion 113 is electrically connected to the first cable 3, and the first cable 3 may be fixedly connected to the first connection portion 113 by welding or other means, the first cable 3 is electrically connected to the stimulator through a connector, and a stimulation signal emitted from the stimulator is transmitted to the first stimulation portion 111 of the first needle 11 through the first cable 3 to stimulate the target site.
Referring to fig. 1, 3 and 4, in one embodiment, the second handle 22 includes a second connecting portion 223 and a holding portion 224, where a distal end of the second connecting portion 223 is connected to the second needle 21, and a boss 221 is disposed on the second connecting portion 223, and preferably, the boss 221 is made of an elastic material. The second needle body 21 penetrates into the inner cavity of the first needle body 11 through the guide cavity, the second connecting portion 223 is arranged in the guide cavity, the holding portion 224 is located outside the proximal end of the first handle 12, then the second handle 22 is rotated, the boss 221 is clamped into the clamping groove 121 for clamping connection, and detachable connection of the first test needle 1 and the second test needle 2 is achieved. The second needle 21 includes a second stimulation portion 211 and a second insulation portion 212 from the distal end to the proximal end, and the outer surface of the second insulation portion 212 is coated with a second insulation layer. Preferably, the length of the second insulation part 212 in the axial direction is longer than the length of the first needle 11 in the axial direction, so that insulation between the first needle 11 and the second needle 21 is realized, and the second insulation layer on the second insulation part 212 can ensure that the signals of the first test needle 1 and the second test needle 2 do not interfere with each other or cause short circuit when the electric signal occurs. Further, a connecting cavity is formed in the second handle 22, the second cable 4 is electrically connected with the second needle body 21 through the connecting cavity, and the second test needle 2 is of a solid structure, so that the second cable can have better strength after being combined with the first test needle 1, and can be effectively penetrated into a human body.
Referring to fig. 2 and 3, the first handle 12 is provided with a first corrugation 122, and the grip portion 224 of the second handle 22 is provided with a second corrugation 222, so as to increase the friction between the user and the handle, thereby facilitating the gripping. When the puncture needle is used, the second test needle 2 is inserted into the first test needle 1, the first needle body 11 of the first test needle 1 covers the second needle body 21 of the second test needle 2, the boss 221 on the second handle 22 is in buckling connection with the clamping groove 121 on the first handle 12, and the first test needle 1 and the second test needle 2 are combined into a puncture needle; the combined test puncture needle includes, in order from the distal end to the proximal end, a second stimulation portion 211, a second insulation portion 212, a first stimulation portion 111, a first insulation portion 112, a connection portion 113, a first handle 12, and a second handle 22. When the user puts the test puncture needle into the body, the test can be performed by the first stimulation unit 111 or by the second stimulation unit 211. Due to the arrangement of the second insulating portion 212, signals of the first stimulating portion 111 and the second stimulating portion 211 are not interfered with each other, short circuit is avoided, and the first stimulating portion 111 and the second stimulating portion 211 can perform synchronous test to simulate actual stimulation conditions of the bipolar electrode. In operation, the puncture needle for testing provided in this embodiment is inserted into the target implantation site of the human body, the stimulator is connected through the connector plug, the stimulator releases an electrical signal to stimulate the target position through the first stimulation portion 111 of the first test needle 1 and the second stimulation portion 211 of the second test needle 2, the position of the puncture needle for testing is continuously adjusted to reach the correct stimulation point, the second test needle 2 is withdrawn, and the stimulation electrode is implanted.
Therefore, the needle bodies of the first test needle 1 and the second test needle 2 of the puncture needle for testing are both electric conductors, and the two test needles can be mutually shielded by coating the second insulating layer on the second insulating part 212 of the second test needle 2, so that two points can be tested simultaneously in one operation process, and the actual stimulation condition of the bipolar electrode can be effectively simulated.
While the utility model has been described with reference to the preferred embodiments, it is not intended to limit the utility model thereto, and it is to be understood that other modifications and improvements may be made by those skilled in the art without departing from the spirit and scope of the utility model, which is therefore defined by the appended claims.
Claims (10)
1. The puncture needle for the test is characterized by comprising a first test needle and a second test needle, wherein the first test needle comprises a first needle body and a first handle which are mutually connected, the first needle body is axially provided with a through inner cavity, and a guide cavity communicated with the inner cavity is arranged in the first handle; the second test needle comprises a second needle body and a second handle which are connected with each other, the second needle body penetrates into the inner cavity of the first needle body through the guide cavity, and the second handle is detachably connected with the first handle; the first needle body and the second needle body are made of conductive materials, a first stimulation part is formed at the distal end of the first needle body, the first needle body and the second needle body are arranged in an insulating mode, the length of the second needle body is larger than that of the first needle body, the distal end of the second needle body is exposed out of the first needle body, and a second stimulation part is formed at the distal end of the second needle body.
2. The test puncture needle according to claim 1, wherein the first handle is provided with a clamping groove, the second handle is provided with a second connecting part, the second connecting part is provided with a boss, the second connecting part is inserted into the guiding cavity, and the boss is arranged in the clamping groove so that the first handle is in clamping connection with the second handle.
3. The test puncture needle according to claim 2, wherein the clip groove is a waist-shaped hole, and the boss is made of an elastic material.
4. The test lancet of claim 1, wherein the first needle comprises, from the distal end to the proximal end, a first stimulation portion, a first insulation portion, and a first connection portion, the outer surface of the first insulation portion being coated with a first insulation layer.
5. The test puncture needle of claim 4, comprising a first cable, the first connection being electrically connected to the first cable.
6. The test lancet of claim 1, wherein the second needle comprises a second stimulation portion and a second insulation portion from the distal end to the proximal end, an outer surface of the second insulation portion being coated with a second insulation layer, a length of the second insulation portion in an axial direction being longer than a length of the first needle in the axial direction.
7. The test lancet of claim 1, comprising a second cable having a connection cavity therein, the second cable being electrically connected to the second needle via the connection cavity.
8. The test lancet of claim 1, wherein a first corrugation is provided on the exterior of the first handle.
9. The test lancet of claim 1, wherein a second corrugation is provided on the exterior of the second handle.
10. The test lancet of claim 1, wherein the second needle is of solid construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321446027.4U CN219983720U (en) | 2023-06-07 | 2023-06-07 | Puncture needle for test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321446027.4U CN219983720U (en) | 2023-06-07 | 2023-06-07 | Puncture needle for test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219983720U true CN219983720U (en) | 2023-11-10 |
Family
ID=88613270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321446027.4U Active CN219983720U (en) | 2023-06-07 | 2023-06-07 | Puncture needle for test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219983720U (en) |
-
2023
- 2023-06-07 CN CN202321446027.4U patent/CN219983720U/en active Active
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