CN213665608U - Puncture needle, cannula and reamer of vertebroplasty guide system with injection channel - Google Patents
Puncture needle, cannula and reamer of vertebroplasty guide system with injection channel Download PDFInfo
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- CN213665608U CN213665608U CN202020948248.1U CN202020948248U CN213665608U CN 213665608 U CN213665608 U CN 213665608U CN 202020948248 U CN202020948248 U CN 202020948248U CN 213665608 U CN213665608 U CN 213665608U
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- injection channel
- reamer
- inner core
- puncture needle
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Abstract
The utility model discloses a centrum shaping guide system pjncture needle, sleeve pipe and reamer of area injection channel, including guide system pjncture needle, sleeve pipe and reamer. All be equipped with injection channel in guide system pjncture needle, sleeve pipe and the reamer, and injection channel all is equipped with the inner core the same with the injection channel internal diameter, the utility model discloses prevent the jam in pore in the use, can accurate control analgesic or narcotic precision. The injection channel is used for injecting analgesic or anesthetic, so that severe pain in the process of establishing the channel and injecting bone cement in the vertebroplasty can be relieved, the surgical experience of a patient is improved, the bone cement is directly injected through the reamer, the link of replacing the bone cement catheter for multiple times in the follow-up process is omitted, and the surgical time is shortened.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to centrum shaping guide system pjncture needle, sleeve pipe and reamer of area injection passageway.
Background
Percutaneous vertebroplasty, a common method for treating osteoporotic fractures or tumors of the spine, is a method in which a channel is created from the skin through the pedicle of a diseased spine of the spine into the vertebral body through a guide system, and bone cement is injected into the vertebral body through the channel. The process of establishing a channel and injecting bone cement often causes severe pain, which causes great pain to patients. Meanwhile, as no corresponding measures are available at present to relieve the pain, some patients can yell because of intolerability, and the operation of operators is greatly interfered. Research shows that the vertebral body contains pain nerve endings, pain during operation is related to the nerve endings, and in addition, the catheter needs to be replaced for many times after the channel is built and bone cement is injected, so that the operation is complicated.
The prior art also has CN201721861562.0 similar technology, but in the drilling, the first hole channel is easy to be blocked, which can affect the injection of anesthetic, and the second is that the device has no practicability because the residue exists in the hole channel and the anesthetic can be remained in the channel, thereby leading the anesthetic dosage to be difficult to control.
SUMMERY OF THE UTILITY MODEL
The utility model provides a puncture needle, a sleeve and a reamer of a centrum forming and guiding system with an injection channel, which aims at the defects of the prior art.
The puncture needle comprises a puncture needle body, a puncture needle body and a needle body, wherein the puncture needle body is provided with a puncture needle inner core, the puncture needle inner core is provided with an injection channel, and the top end of the injection channel of the puncture needle inner core is opened at the front part of the puncture needle inner core; the tail end of an injection channel of the puncture needle inner core is provided with an interface matched with an injector, a second inner core is additionally arranged in the injection channel of the puncture needle inner core, the top end of the second inner core is sharp, the tail part of a puncture needle sleeve is provided with a handle, the top end of the second inner core is matched with a puncture guiding end, and the inner diameter of the injection channel of the puncture guiding needle is consistent with the outer diameter of the inner core; when the injection needle of the guide puncture needle is inserted to replace the second inner core, the top end of the injection needle is level with the front end of the injection channel, and the inner diameter of the injection channel is consistent with the outer diameter of the injection needle.
A vertebroplasty guidance system cannula with an injection channel; an injection channel is arranged on the outer side or the side wall of the guide sleeve, the top end of the injection channel of the guide sleeve is opened at the front part of the guide sleeve, the tail end of the injection channel of the guide sleeve is provided with a port matched with an injector, an inner core is arranged in the injection channel, the top end of the inner core is sharp, the top end of the inner core is matched with the front end of the sleeve, and the inner diameter of the injection channel is consistent with the outer diameter of the inner core; when the guide sleeve injection needle replaces the inner core to be inserted, the top end of the injection needle is parallel to the front end of the sleeve, and the inner diameter of the injection channel is consistent with the outer diameter of the injection needle.
The reamer is internally provided with an injection channel, the front end of the channel of the reamer is opened at the front part of the reamer, the tail end of the channel is opened at the tail part of the reamer, and the tail part of the channel is provided with an interface matched with an injector; the front part of the reamer is provided with a cutting edge, the tail part of the reamer is provided with a handle, an inner core is arranged in an injection channel of the reamer, the front end of the inner core is sharp, the top end of the inner core is matched with the front end of the reamer, and the inner diameter of the injection channel of the reamer is consistent with the outer diameter of the inner core; when the injection needle of the reamer is inserted with the inner core replaced, the top end of the injection needle is level with the front end of the reamer, and the inner diameter of the injection channel is consistent with the outer diameter of the injection needle.
Preferably, the outer edge of the tail end of the injection channel connector of the puncture needle of the guide system is provided with threads, the tail end of the inner core is provided with a threaded cap, and the threaded cap is matched with the threads on the outer edge of the tail end connector of the injection channel.
Preferably, the inner core of the introducer needle is connected to the injection channel port by a bayonet connection.
Preferably, the outer edge of the tail end of the port of the injection passage of the guide sleeve is provided with threads, and the tail end of the inner core is provided with a threaded cap which is matched with the threads on the outer edge of the port of the tail end of the injection passage.
Preferably, the inner core of the introducer sheath is connected to the injection channel port by a bayonet connection.
Preferably, the outer edge of the tail end of the injection channel connector of the reamer is provided with threads, the tail end of the inner core is provided with a threaded cap, and the threaded cap is matched with the threads on the outer edge of the tail end connector of the injection channel.
Preferably, the reamer has an inner core that interfaces with the injection channel via a bayonet connection.
Preferably, the side wall of the top of the reamer is provided with a side hole, and the side hole is communicated with an injection channel.
Preferably, a side hole is formed in the side wall of the front part of the reamer injection needle, and the side hole is matched with the reamer side hole.
The utility model discloses for prior art's effect: the utility model prevents the blockage of the pore channel during the use process, and can accurately control the precision of the analgesic or the anesthetic; the injection channel is used for injecting analgesic or anesthetic, so that severe pain in the processes of establishing a channel and injecting bone cement in vertebroplasty can be relieved, the surgical experience of a patient is improved, a reamer is hinged to a bone after a cannula is inserted into a vertebral body, the analgesic or anesthetic is injected, then the bone cement is directly connected with a bone cement injector to inject the bone cement, the link of injecting the bone cement by replacing a bone cement catheter for many times later is omitted, and the surgical time is saved.
Drawings
FIG. 1 is a cross-sectional view of a guide system cannula over a handle with an injection channel in the sidewall;
FIG. 2 is a vertical cross-sectional view of the guide system sleeve within the sidewall of the injection passage perpendicular to FIG. 1;
FIG. 3 is a schematic view of the structure of the introducer system sheath with the injection channel outside the sidewall;
FIG. 4 is a schematic view of the structure of the inner core of the guide system needle, guide system cannula and reamer injection channel;
FIG. 5 is a cross-sectional view of the needle passing through the handle of the introducer system;
FIG. 6 is a schematic view of a reamer configuration;
Detailed Description
The utility model relates to a centrum forming guide puncture needle with an injection channel, a sleeve and a reamer;
as shown in fig. 4 and 5, the puncture needle of the guide system is composed of a sleeve 1 and an inner core 2, an injection channel 4 is arranged in the inner core of the puncture needle, a handle 3 is arranged at the tail part of the guide puncture needle, and the top end of the injection channel of the guide puncture needle is opened at the top end of the inner core of the puncture needle; the tail end of the injection channel of the puncture needle inner core is provided with an interface matched with the injector, and a second inner core is additionally arranged in the injection channel of the puncture needle inner core.
The tail end of an injection channel of the guide system puncture needle is provided with a port 5 matched with the injector, a second inner core 7 is arranged in the injection channel of the guide puncture needle, the top end of the second inner core is sharp, and the top end of the second inner core is matched with the top end of the guide puncture needle; the inner diameter of the injection channel of the puncture needle of the guide system is consistent with the outer diameter of the inner core of the puncture needle; when the injection needle of the guide puncture needle is inserted to replace the second inner core, the top end of the injection needle is level with the front end of the injection channel, and the inner diameter of the injection channel is consistent with the outer diameter of the injection needle; the outer edge of the tail end of the injection channel connector is provided with threads, the tail end of the second inner core is provided with a threaded cap 8, and the threaded cap is matched with the threads on the outer edge of the channel tail end connector.
As shown in fig. 1, 2 and 3, an injection channel 10 is arranged on the outer side or the side wall of the guide sleeve 9, a handle 11 is arranged at the tail part of the guide sleeve, the top end of the injection channel of the guide sleeve is flush with the top end of the cylindrical part of the guide sleeve and is shorter than the tip 12 of the guide sleeve, a port matched with a syringe is arranged at the tail end of the injection channel of the guide sleeve, an inner core 7 is arranged in the injection channel, the top end of the inner core 7 is sharp, the tip of the inner core is matched with the front end of the sleeve, and the inner diameter of the injection channel is; when the guide sleeve injection needle replaces the inner core to be inserted, the top end of the injection needle is parallel to the front end of the sleeve, and the inner diameter of the injection channel is consistent with the outer diameter of the injection needle; the outer edge of the tail end of the port of the injection channel is provided with threads, the tail end of the inner core is provided with a threaded cap 8, and the threaded cap is matched with the threads on the outer edge of the port of the tail end of the injection channel.
As shown in fig. 6, an injection channel 15 is arranged inside the reamer 13, the front end of the channel of the reamer opens at the front end of the reamer, and the tail end of the channel opens at the tail end of the reamer; the front part of the reamer is provided with a cutting edge 14, the tail part of the reamer is provided with a handle 16, an inner core is arranged in an injection channel of the reamer, the front end of the inner core is sharp, the top end of the inner core is matched with the top end of the reamer, and the inner diameter of the injection channel of the reamer is consistent with the outer diameter of the inner core; when the injection needle of the reamer is inserted with the replacement inner core, the top end of the injection needle is parallel to the front end of the reamer, the inner diameter of the injection channel is consistent with the outer diameter of the injection needle, and the side wall of the top of the reamer is provided with a side hole which is communicated with the injection channel; a side hole is formed in the side wall of the front part of the reamer injection needle and matched with the reamer side hole; the outer edge of the tail end of the injection channel connector is provided with threads, the tail end of the inner core is provided with a threaded cap, and the threaded cap is matched with the threads on the outer edge of the channel tail end connector.
During the puncture process of the puncture needle, firstly, the inner core of the injection channel of the inner core of the puncture needle is inserted into the injection channel, when a patient is painful, the inner core of the injection channel is pulled out, the dosage of analgesic or anesthetic in the injection needle is adjusted, and the injection needle is inserted into the injection channel to the front end of the injection channel and is injected to relieve the pain; when inserting the cannula, the injection of pain medication or anaesthetic medication through the injection needle can be done in the same way; when drilling with the reamer, also inject painkiller or narcotic drug through similar mode to alleviate pain, still can squeeze into the medicine in advance for follow-up injection bone cement operation and control pain, later connect the direct injection bone cement of bone cement syringe, save follow-up change bone cement pipe link many times, shorten the operation time.
Claims (10)
1. A puncture needle with an injection channel for a vertebroplasty guidance system, which is characterized in that: the guide system puncture needle consists of a sleeve and an inner core, an injection channel is arranged in the inner core of the puncture needle, and the top end of the injection channel of the inner core of the puncture needle is opened at the top end of the inner core of the puncture needle; the tail end of the injection channel of the puncture needle inner core is provided with an interface matched with the injector, and a second inner core is additionally arranged in the injection channel of the puncture needle inner core.
2. The vertebroplasty introducer needle with injection channel of claim 1, wherein: the injection channel interface of the puncture needle of the guide system is connected with the inner core of the puncture needle through threads or bayonets; when in threaded connection, the outer edge of the tail end of the injection channel interface of the puncture needle of the guide system is provided with threads, the tail end of the inner core is provided with a threaded cap, and the threaded cap is matched with the threads on the outer edge of the tail end interface of the injection channel.
3. The vertebroplasty introducer needle with injection channel of claim 1, wherein: the top end of the second inner core is sharp, the tail part of the puncture needle sleeve is provided with a handle, the top end of the second inner core is matched with the front end of the guide puncture needle, and the inner diameter of an injection channel of the guide puncture needle is consistent with the outer diameter of the second inner core.
4. A vertebroplasty guidance system cannula with an injection channel; the method is characterized in that: an injection channel is arranged on the outer side or the side wall of the guide sleeve, the top end of the injection channel of the guide sleeve is opened at the front part of the guide sleeve, a connector matched with an injector is arranged at the tail end of the injection channel of the guide sleeve, and an inner core is arranged in the injection channel.
5. The vertebroplasty guide system cannula with injection channel of claim 4, wherein: the injection channel interface of the guide sleeve is connected with the inner core of the guide sleeve through threads or bayonets; when the guide sleeve is connected through the threads, the outer edge of the tail end of the injection channel connector of the guide sleeve is provided with threads, the tail end of the inner core is provided with a thread cap, and the thread cap is matched with the threads on the outer edge of the tail end connector of the injection channel.
6. The vertebroplasty guide system cannula with injection channel of claim 4, wherein: the top end of the inner core is sharp, the top end of the inner core is matched with the front end of the sleeve, and the inner diameter of the injection channel is consistent with the outer diameter of the inner core.
7. Take injection channel's vertebroplasty guidance system reamer, its characterized in that: an injection channel is arranged in the reamer, the front end of the channel of the reamer is opened at the front end of the reamer, the tail end of the channel is opened at the tail part of the reamer, and the tail part of the channel is provided with an interface matched with an injector; the front part of the reamer is provided with a cutting edge, the tail part of the reamer is provided with a handle, and an inner core is arranged in an injection channel of the reamer.
8. The vertebroplasty guide system reamer with an injection channel of claim 7, wherein: the injection channel of the reamer is connected with the inner core of the reamer through threads or bayonets, when the reamer is connected through the threads, threads are arranged on the outer edge of the tail end of the port of the injection channel of the reamer, a thread cap is arranged on the tail end of the inner core, and the thread cap is matched with the threads on the outer edge of the port of the tail end of the injection channel.
9. The vertebroplasty guide system reamer with an injection channel of claim 7, wherein: the front end of the inner core is sharp, the top end of the inner core is matched with the top end of the reamer, and the inner diameter of the injection channel of the reamer is consistent with the outer diameter of the inner core of the reamer.
10. The vertebroplasty guide system reamer with an injection channel of claim 7, 8 or 9, wherein: the side wall of the top of the reamer is provided with a side hole which is communicated with an injection channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020948248.1U CN213665608U (en) | 2020-05-29 | 2020-05-29 | Puncture needle, cannula and reamer of vertebroplasty guide system with injection channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020948248.1U CN213665608U (en) | 2020-05-29 | 2020-05-29 | Puncture needle, cannula and reamer of vertebroplasty guide system with injection channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213665608U true CN213665608U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020948248.1U Active CN213665608U (en) | 2020-05-29 | 2020-05-29 | Puncture needle, cannula and reamer of vertebroplasty guide system with injection channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213665608U (en) |
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2020
- 2020-05-29 CN CN202020948248.1U patent/CN213665608U/en active Active
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