CN221332454U - Pulse catheter electrode device capable of injecting medicine - Google Patents
Pulse catheter electrode device capable of injecting medicine Download PDFInfo
- Publication number
- CN221332454U CN221332454U CN202322601890.9U CN202322601890U CN221332454U CN 221332454 U CN221332454 U CN 221332454U CN 202322601890 U CN202322601890 U CN 202322601890U CN 221332454 U CN221332454 U CN 221332454U
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- China
- Prior art keywords
- catheter
- drug
- electrode
- channel
- medicine
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- 239000003814 drug Substances 0.000 title claims abstract description 73
- 229940079593 drug Drugs 0.000 claims abstract description 53
- 238000002347 injection Methods 0.000 claims abstract description 50
- 239000007924 injection Substances 0.000 claims abstract description 50
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 231100000252 nontoxic Toxicity 0.000 claims description 4
- 230000003000 nontoxic effect Effects 0.000 claims description 4
- 230000000638 stimulation Effects 0.000 description 12
- 238000011282 treatment Methods 0.000 description 8
- 210000005036 nerve Anatomy 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000202 analgesic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007383 nerve stimulation Effects 0.000 description 1
- 208000027753 pain disease Diseases 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Abstract
The utility model discloses a medicine-injection pulse catheter electrode device, which comprises an outer sheath catheter, a catheter electrode, a medicine injection catheter and a guide wire component for puncture guiding, wherein the outer sheath catheter is connected with the catheter electrode; the sheath catheter is provided with a channel, and the catheter electrode and the drug injection catheter are stacked together and extend into the channel; the channel having a first outlet and a second outlet, wherein the conduit electrode passes through the first end of the channel and out of the first outlet of the channel to expose an electrode contact on the conduit electrode, the second end of the conduit electrode being for connection with a pulsed electrical signal transmitter; the first end part of the drug injection catheter extending into the channel is provided with a drug outlet corresponding to the second outlet for discharging the drug, and the second end part of the drug injection catheter is used for being connected with the drug injector. The utility model has the advantages of simple structure, high safety and wide application range.
Description
Technical Field
The utility model relates to the field of medical supplies, in particular to a medicine-injection type pulse catheter electrode device.
Background
At present, the nerve electrical stimulation technology has better clinical curative effect in pain treatment. In the prior art, a catheter electrode is implanted in a body by using imaging positioning guidance, a stimulation generator is connected to the body to apply pulse current stimulation to a nerve target related to pain, and treatment is carried out for 1-2 weeks as required after the electrode is implanted. Another treatment is to implant a catheter into the site of the target pain under imaging guidance, and to connect an analgesic pump for intermittent or continuous administration.
The medicine injection and the electric stimulation in the prior art are two sets of separated equipment, and the medicine needs to reach the vicinity of a nerve target point during treatment, and in the process, the nerve and the periphery of the nerve can be injured for multiple times; with the development of technology, there is also an integrated device for combining drug injection and electrical stimulation in the prior art, such as a catheter electrode and an in-vivo implanted nerve stimulation device disclosed in patent document 201910846478.9, and a spinal cord electrical stimulation catheter structure with a drug treatment channel disclosed in patent document 202310478843.1; however, the above patent documents also have the defects of poor safety and controllability, high cost, limited application range and the like, which are possibly caused by implanting the nerve stimulating device in the body.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model mainly aims to provide the medicine-injection type pulse catheter electrode device which has the advantages of simple structure, high safety and wide application range.
In order to achieve the main purpose, the utility model provides a medicine-injection pulse catheter electrode device, which comprises an outer sheath catheter, a catheter electrode, a medicine injection catheter and a guide wire assembly for puncture guiding; the sheath catheter is provided with a channel, and the catheter electrode and the drug injection catheter are stacked together and extend into the channel; the channel having a first outlet and a second outlet, wherein the conduit electrode passes through the first end of the channel and out of the first outlet of the channel to expose an electrode contact on the conduit electrode, the second end of the conduit electrode being for connection with a pulsed electrical signal transmitter; the first end part of the drug injection catheter extending into the channel is provided with a drug outlet corresponding to the second outlet for discharging the drug, and the second end part of the drug injection catheter is used for being connected with the drug injector.
According to one embodiment of the utility model, the catheter electrode and the drug injection catheter are bonded together.
According to one embodiment of the utility model, the catheter electrode and the drug injection catheter are fixedly connected together by at least one connector.
According to one embodiment of the utility model, the connector is a non-toxic rubber connector.
According to one embodiment of the utility model, the second end of the drug injection catheter is provided with a connector for cooperation with the drug injector.
According to one embodiment of the utility model, the connector is a positive pressure connector for preventing backflow of the medicament.
According to one embodiment of the present utility model, a guidewire assembly includes a guidewire and a handle disposed on the guidewire, the guidewire being extendable into and freely removable from a drug injection catheter.
According to one embodiment of the utility model, the drug injection catheter is provided with a valve near its second end for opening or closing the drug injection catheter.
The utility model has the following beneficial effects:
The medicine-injection pulse catheter electrode device can be used for various pain diseases, can simultaneously provide various treatments such as electric stimulation, medicine injection and the like by implanting the catheter electrode once, can reduce the trauma caused by multiple catheter punctures, is beneficial to reducing the treatment cost and saving the social medical resources; meanwhile, the pulse electric signal transmitter is externally arranged, so that the miniaturization of the whole structure is realized, the volume of an implanted catheter in the body is reduced, and the electric stimulation regulation operation and the rejection reaction are facilitated.
The objects, technical solutions and advantages of the present utility model will be more clearly described below, and the present utility model will be further described in detail with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a block diagram of an embodiment of a pulse catheter electrode of the present utility model;
FIG. 2 is a diagram of the use of an embodiment of a pulse catheter electrode of the present utility model;
Fig. 3 is a longitudinal cross-sectional view of an embodiment of a pulse catheter electrode of the present utility model.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.
The drug-injectable pulse catheter electrode device of the embodiment of the utility model is shown in fig. 1, and comprises an outer sheath catheter 10, a catheter electrode 20, a drug injection catheter 30 and a guide wire assembly 40 for puncture guiding; wherein the outer sheath catheter 10 is made of PVC material, for example; inside the outer sheath catheter 10 is provided a channel 11, between which a catheter electrode 20 and a drug injection catheter 30 are stacked and extend into the channel 11.
Catheter electrode 20 is used to provide pulsed current; with continued reference to fig. 1, the channel 11 has a first outlet 12, the conduit electrode 20 passes through the first end of the channel 11 and out of the first outlet 12 of the channel 11 to expose an electrode contact 21 on the conduit electrode 20, and a second end of the conduit electrode 20 is adapted to be connected to a pulsed electrical signal transmitter 50; providing different types of electrical stimulation is achieved by controlling the on-off and operational modes of the pulsed electrical signal transmitter 50 when the pulsed catheter electrode 20 of the present embodiment is implanted at a respective location in a patient.
The drug injection catheter 30 is used to provide access to the drug solution to be injected; referring again to fig. 1, the channel 11 has a second outlet 13, and a first end of the drug injection conduit 30 extending into the channel 11 is provided with a drug outlet 31, the drug outlet 31 corresponds to the second outlet 13 for discharging the drug, and a second end of the drug injection conduit 30 is connected to the drug injector 60. Preferably, the number of the medicine outlet holes 31 and the second outlets 13 is two or more.
Further, the second end of the drug injection catheter 30 is provided with a connector 32, and the connector 32 is used for matching with the drug injector 60; the connector 32 is preferably a positive pressure connector to prevent backflow of the drug. With continued reference to fig. 1, the drug injection catheter 30 may further include a valve 33 near the second end thereof, the valve 33 is used to open or close the drug injection catheter 30, the valve 33 is a manual valve, the valve 33 is closed to close the communication between the drug injection catheter 30 and the outside when no external drug is needed, and the valve 33 is opened to inject the drug to the corresponding target position through the injector 60 when the injection of the drug is needed.
Referring to fig. 1 and 3, the catheter electrode 20 and the drug injection catheter 30 of the embodiment are preferably connected together, for example, by a connector 70, the connector 70 being, for example, a non-toxic rubber connector; preferably, the number of connectors 70 is two or more to maintain the effectiveness of the connection between catheter electrode 20 and drug injection catheter 30; in other embodiments, non-toxic glue may be used to bond the catheter electrode 20 and the drug injection catheter 30 together.
The guide wire assembly 40 in this embodiment includes a guide wire 41 and a handle 52 provided on the guide wire 41, the guide wire 41 being extendable into the drug injection catheter 30 and freely removable from the drug injection catheter 30; the operation of this embodiment is briefly described below in conjunction with fig. 2.
Under the imaging positioning guidance, performing puncture guidance by using a guide wire 41 to puncture and implant the device into a pain target site, and then removing the guide wire 41; the second end of the catheter electrode 20 is connected to an electrical stimulation generator, and pulse current stimulation is intermittently or continuously given according to the needs of the illness state; the second end of the drug injection catheter 30 is connected to the injector 60 for intermittent or continuous administration as needed by the patient. Meanwhile, according to the needs of the illness, the connection time and the usage amount of the electric stimulation emitter and the external medicine injector 60 are adjusted; conventionally, the device is removed after about 1-2 weeks of implantation treatment and is not reused.
Although the utility model has been described above by way of examples, it should be understood that the above examples are illustrative only of the possible embodiments of the utility model and should not be construed as limiting the scope of the utility model, i.e. that substitutions or variations according to the utility model will be covered by the scope of the claims of the utility model.
Claims (8)
1. The utility model provides a but injection formula pulse catheter electrode device which characterized in that includes sheath pipe, catheter electrode, medicine injection pipe and punctures guide wire subassembly of guiding usefulness; the sheath catheter is provided with a channel, and the catheter electrode and the drug injection catheter are stacked together and extend into the channel; the channel having a first outlet and a second outlet, wherein the catheter electrode passes through a first end of the channel and out of the first outlet of the channel to expose an electrode contact on the catheter electrode, the second end of the catheter electrode being for connection with a pulsed electrical signal transmitter; the first end part of the medicine injection catheter extending into the channel is provided with a medicine outlet, the medicine outlet corresponds to the second outlet for discharging medicine, and the second end part of the medicine injection catheter is used for being connected with a medicine injector.
2. The drug-insertable pulse catheter electrode device of claim 1, wherein: the catheter electrode and the drug injection catheter are bonded together.
3. The drug-insertable pulse catheter electrode device of claim 1, wherein: the catheter electrode and the drug injection catheter are fixedly connected together through at least one connecting piece.
4. A drug-insertable pulse catheter electrode device as defined in claim 3, wherein: the connecting piece is made of nontoxic rubber.
5. The drug-insertable pulse catheter electrode device of claim 1, wherein: the second end part of the medicine injection catheter is provided with a connector, and the connector is used for being matched with the medicine injector.
6. The drug-insertable pulse catheter electrode device of claim 5, wherein: the connector is a positive pressure connector for preventing medicine from flowing back.
7. The drug-insertable pulse catheter electrode device of claim 1, wherein: the guide wire assembly comprises a guide wire and a handle arranged on the guide wire, and the guide wire can extend into the drug injection catheter and can be freely pulled out from the drug injection catheter.
8. The drug-insertable pulse catheter electrode device of claim 1, wherein: the drug injection catheter is provided with a valve near its second end for opening or closing the drug injection catheter.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221332454U true CN221332454U (en) | 2024-07-16 |
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| Date | Code | Title | Description |
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| GR01 | Patent grant |