CN210541713U

CN210541713U - Intervertebral disc minimally invasive surgery channel device and rotary cutter

Info

Publication number: CN210541713U
Application number: CN201920767208.4U
Authority: CN
Inventors: 杨汉丰; 何汶静; 杜勇; 徐晓雪; 祝元仲; 李兵; 张川
Original assignee: North Sichuan Medical College
Current assignee: North Sichuan Medical College
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-05-19
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses an intervertebral disc minimally invasive surgery channel device, which comprises a connector, a channel conduit with one end connected with the connector, and an inner conduit arranged in the connector and the channel conduit; the inner catheter is axially provided with a first channel in a penetrating way, one end of the inner catheter penetrates out of the channel catheter, and the end is provided with an expansion part capable of expanding and contracting the balloon. The utility model discloses a multiple instrument combination forms the channel equipment, fill through sacculus gas reach make the partial intervertebral disc protrusion part of swelling and close on the effect of important tissue separation such as nerve, blood vessel, reduce the operation risk, channel ware itself can also regard as safe guide arm to use simultaneously, makes intervertebral disc protrusion move to the position of needs, plays and promotes the security, enlarges the effect of intervertebral disc minimal access surgery application range. Meanwhile, also provides a rotary cutter adopting the intervertebral disc minimally invasive surgery channel device.

Description

Intervertebral disc minimally invasive surgery channel device and rotary cutter

Technical Field

The utility model relates to the field of medical equipment, concretely relates to intervertebral disc minimal access surgery passageway ware and rotary cutter.

Background

The important part of the treatment of the protrusion of the intervertebral disc is decompression, various spine minimally invasive surgical instruments are used for treatment at present by utilizing the principle, and effective mechanical decompression is carried out by removing part or most of protruded nucleus pulposus tissues, thereby achieving the same effect of surgical operation. After the minimally invasive intervertebral disc surgery is successfully completed, most patients can immediately take effect, the pain disappears or is relieved, and the corresponding nerve compression test is converted from positive to negative. Meanwhile, the technology is easy to operate, has small wound, is quick to recover, has small influence on the stability of the spine, and is gradually accepted and selected by patients and medical workers.

The spine minimally invasive surgical instrument mainly comprises a minimally invasive electric intervertebral disc pressure reducer and an intervertebral disc forceps extractor at present, wherein the minimally invasive electric intervertebral disc pressure reducer is firstly developed successfully by America Hisseck company, is introduced into China in 2005, is widely applied in China, achieves certain clinical effect, but has defects in the two instruments.

Both instruments suffer from a limited range of operation. Because the working channel is punctured to the affected part from the guide tube through the skin, the maximum diameter is only 2.5mm, the spinal nerve is very sensitive to pain stimulation, the protruding intervertebral disc tissue is overlapped with the adjacent nerves, blood vessels and other tissues in a staggered way, although a doctor can take great care in the operation, the device still has difficulty in accurately separating the affected part from the nerves and the blood vessels, if the removed tissues are tightly contacted with the nearby nerves and blood vessels, the operation has the risks of damaging the nerves and bleeding, and the complications related to nerve root damage and bleeding are caused. This problem is particularly acute with disc forceps removal devices, which employ clamping to remove the bulging or herniated disc tissue, which may easily contact or clamp to nerves or blood vessels adjacent to the bulging or herniated disc tissue.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be not enough to prior art, the utility model provides a intervertebral disc wicresoft operation passageway ware as combination tool's core channel equipment, fill through sacculus gas and reach the effect that makes outstanding intervertebral disc tissue and important tissue such as approaching nerves, blood vessel separate, reduce the operation risk, the guide arm that can also regard as safety simultaneously passageway ware itself uses, makes the intervertebral disc displacement that expands or outstanding to the position that needs, plays and promotes the operability, enlarges application range's effect.

In order to achieve the above object, the utility model adopts the following technical scheme:

the minimally invasive surgery gateway for the intervertebral disc comprises a connector, a channel conduit with one end connected with the connector, and an inner conduit penetrating through the connector and the channel conduit; the inner guide pipe is axially provided with a first channel in a penetrating way, one end of the inner guide pipe penetrates out of the channel guide pipe, and the end is provided with an expandable and contractible expansion part.

Furthermore, the other end of the inner conduit penetrates out of the connector.

Still further, a second channel is formed between the inner conduit and the channel conduit and the connector.

Furthermore, the expansion part is a balloon and is arranged around the outer wall of the inner catheter, two sides of the balloon are respectively connected with the inner catheter and the channel catheter to form a sealed space, the second channel is communicated with the sealed space, and the second channel is provided with an inflation inlet.

Furthermore, the connector is a Y-shaped three-way joint, the channel guide pipe is connected with a converging pipe of the Y-shaped three-way joint, the inner guide pipe penetrates through a branch pipe of the Y-shaped three-way joint and extends to the outside, and the other branch pipe of the Y-shaped three-way joint is communicated with the inflation inlet.

Furthermore, the branch pipe of the Y-shaped three-way joint, through which the inner conduit passes, is provided with a sealing part for sealing the second channel.

Based on the above, the present invention further provides a rotary cutter using the above minimally invasive intervertebral disc surgical access device, which comprises a rotary cutting mechanism connected to a branch pipe of the Y-shaped three-way joint, in which an inner conduit is arranged, and an inflation and deflation mechanism connected to another branch pipe of the Y-shaped three-way joint and used for inflating and deflating the balloon, wherein the rotary cutting mechanism passes through the first channel and extends to the outside of the first channel.

Further, the rotary cutting mechanism comprises a rotary cutting needle, a rotary cutting handle, a rotating speed regulator and a branch joint, wherein the output end of the rotary cutting handle is connected with the rotary cutting needle and used for driving the rotary cutting needle to rotate, the rotating speed regulator is arranged at the end part of the rotary cutting handle and used for regulating the rotating speed of the rotary cutting needle, and the branch joint is connected with the rotary cutting handle and a Y-shaped three-way joint and penetrates through a branch pipe provided with an inner conduit; the rotary cutting needle passes through the first channel and extends to the outside of the first channel.

Still further, the adapter sets up the handle of the department of holding when being convenient for advance the needle.

Furthermore, the inflation and deflation mechanism comprises an inflation and deflation switch connected with the other branch pipe of the Y-shaped three-way joint, a hose joint connected with the inflation and deflation switch, an inflation hose connected with the hose joint, an inflation and deflation handle connected with the inflation hose, and a pressure gauge for displaying the air pressure value in the balloon.

Compared with the prior art, the utility model discloses following beneficial effect has:

the channel device of the utility model is used as the core channel device of the combined tool, the balloon is arranged at the end part, the balloon is expanded through the charging of gas, and the expanded balloon separates the expanded part or the protruded intervertebral disc tissue from the important tissue structures such as the adjacent nerves, blood vessels and the like, thereby reducing the operation risk; the inner conduit is provided with a first channel as a working channel, and can be matched with an existing electric drill, a manual or electric planing device, a clamping device and the like on the market at present by matching with a Y-shaped three-way joint, and meanwhile, the intervertebral disc minimally invasive surgery channel device can also be used as a safe guide rod, so that the protruded intervertebral disc tissues can be displaced to a required position, the safety is improved, the use range is expanded, and the intervertebral disc minimally invasive surgery channel device has important clinical application value.

Drawings

Fig. 1 is a schematic structural diagram of a channel device according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of an inner catheter according to an embodiment of the present invention.

Fig. 3 is a sectional view of a channel device according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a rotary cutter according to an embodiment of the present invention.

FIG. 5 is a partial enlarged view of the balloon of the rotary shaver according to the embodiment of the present invention

Wherein, the names corresponding to the reference numbers are:

1-connector, 2-channel conduit, 3-expansion part, 4-rotary cutting needle, 5-rotary cutting handle, 6-rotation speed regulator, 7-adapter, 8-handle, 9-inflation and deflation switch, 10-hose connector, 11-inflation hose, 12-inflation and deflation handle, 13-pressure gauge, 14-inner conduit, 21-first channel, 22-second channel and 23-sealing part.

Detailed Description

To make the objectives, technical solutions and advantages of the present application more clear, the present invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples.

Examples

As shown in fig. 1 to 3, the present embodiment provides a minimally invasive intervertebral disc surgical access instrument, and it should be noted that the terms of "first", "second", "third", and the like in the present embodiment are only used for distinguishing similar components, and are not to be construed as a specific limitation to the protection scope. In addition, the terms of orientation such as "bottom", "top", "side edges", and the like in the present embodiment are explained based on the drawings.

The minimally invasive surgery gateway for the intervertebral disc comprises a connector 1, a channel conduit 2 with one end connected with the connector 1, and an inner conduit 14 arranged in the connector 1 and the channel conduit 2 in a penetrating way; the inner guide tube 14 is provided with a first passage 21 extending axially therethrough, and one end of the inner guide tube 14 is extended out of the passage guide tube 2 and provided with an expandable and contractible expansion portion 3 at the end.

Wherein the other end of the inner conduit 14 passes through the connector 1. The inner conduit 14, the channel conduit 2 and the connector 1 form a second channel 22, the inner conduit 14, the channel conduit 2 and the connector 1 are coaxially arranged, and the inner conduit 14, the channel conduit 2 and the inner wall of the connector 1 are firmly connected through a connecting ridge (not shown in the figure). The expansion part 3 is a balloon and is arranged around the outer wall of the inner catheter 14, the balloon is made of medical elastic plastic, the two sides of the balloon are respectively connected with the inner catheter 14 and the channel catheter 2 to form a sealed space, the second channel 22 is communicated with the sealed space, the second channel 22 is provided with an inflation port, the balloon is conveniently inflated, and the first channel 21 plays a role of a working channel.

Connector 1 is Y type three way connection, passageway pipe 2 is connected with Y type three way connection's the pipe that converges, be passageway pipe 2 and Y type three way connection's the pipe integrated into one piece that converges specifically, passageway pipe 2 pipe diameter is less than Y type three way connection, be convenient for through the passway ware to the assigned position, inner conduit 14 passes a bleeder of Y type three way connection and extends to the outside, another bleeder and inflation inlet intercommunication of Y type three way connection, this bleeder and second passageway 22 intercommunication promptly, be convenient for external gas filling equipment for the sacculus aerify. The branch pipe of the Y-shaped three-way joint penetrating the inner catheter 14 is provided with a sealing part 23 for sealing the second channel 22, the sealing part 23 enables the second channel 22 to be airtight, the balloon can be rapidly inflated to be opened, and the sealing part 23 can be made of soft materials and tightly wraps the inner catheter 14 to form sealing. The two branch pipe ends of the Y-shaped three-way joint are provided with internal threads so as to be convenient for being connected with other devices, and other connection modes can be adopted.

The minimally invasive intervertebral disc surgical channel device serves as core channel equipment of a combined tool, a balloon is arranged at the end part, the balloon is expanded through the filling of gas, and the expanded balloon separates the protruded intervertebral disc tissues from the adjacent important tissue structures such as nerves, blood vessels and the like, so that the surgical risk is reduced. Under the guidance of the intervertebral disc minimally invasive surgery channel device, an electric drill, a manual or electric planing device, a forceps picking device and the like which are available on the market at present can be arranged, and meanwhile, the intervertebral disc minimally invasive surgery channel device can also be used as a safe guide rod, so that the protruded intervertebral disc tissues can be displaced to a required position, the safety is improved, the use range is expanded, and the intervertebral disc minimally invasive surgery channel device has important clinical application value.

As shown in fig. 4 to 5, the rotary shaver using the minimally invasive intervertebral disc surgical channel instrument of the previous embodiment includes a rotary shaver mechanism connected to a branch pipe of the Y-shaped three-way joint, through which the inner catheter 14 is inserted, and an inflation and deflation mechanism connected to another branch pipe of the Y-shaped three-way joint and used for inflating and deflating the balloon, wherein the rotary shaver mechanism passes through the first channel 21 and extends to the outside of the first channel 21.

Specifically, the rotary cutting mechanism comprises a rotary cutting needle 4, a rotary cutting handle 5, a rotating speed regulator 6 and a branch joint 7, wherein the output end of the rotary cutting handle 5 is connected with the rotary cutting needle 4 and used for driving the rotary cutting needle 4 to rotate, the rotating speed regulator 6 is arranged at the end part of the rotary cutting handle 5 and used for regulating the rotating speed of the rotary cutting needle 4, and the branch joint is connected with the rotary cutting handle 5 and a Y-shaped three-way joint and provided with an inner conduit 14 in a penetrating manner; the rotary cutting needle 4 penetrates through the first channel 21 and extends to the outside of the first channel 21, namely, the rotary cutting needle extends out of the first channel 21, the rotary cutting handle 5 is an existing one, a hand is held during rotary cutting, a motor, a power supply and the like are arranged inside the rotary cutting handle 5, and a switch is arranged on the shell of the rotary cutting handle 5. The end part of the rotary cutting needle 4 penetrating through the first channel 21 is provided with a rotary cutting head, the rotary cutting handle 5 drives the rotary cutting needle to rotate rotary cutting convex tissues, and the rotary cutting needle 4 is detachably connected with the output end of the rotary cutting handle 5, so that the rotary cutting needle is convenient to replace. Two ends of the adapter 7 are respectively connected with the rotary-cut handle 5 and the branch pipe of the Y-shaped three-way joint in a threaded manner. The inflation and deflation mechanism comprises an inflation and deflation switch 9 connected with the other branch pipe of the Y-shaped three-way joint, a hose joint 10 in threaded connection with the inflation and deflation switch 9, an inflation hose 11 inserted into the hose joint 10, an inflation and deflation handle 12 connected with the inflation hose 11, and a pressure gauge 13 for displaying the air pressure value in the balloon, wherein the pressure gauge 13 is arranged at the tail end of the inflation and deflation handle 12, and the pressure gauge 13 is a medical special pressure gauge.

In order to facilitate the holding of the needle during the needle insertion, the adapter 7 is provided with a handle 8.

When the rotary cutter of the embodiment is used, under the guidance of the CT, the puncture needle is used for puncturing to a target position to establish a puncture channel. The channel device is placed in the puncture channel, the saccule can be inflated when the channel device reaches a designated position, and two using modes are provided after the saccule is inflated, firstly, the inflated saccule is utilized to push the expanded or protruded intervertebral disc tissues back to the intervertebral disc, namely, the saccule is used as a safety guide rod; and the inflated saccule is used directly to separate expanded or protuberant intervertebral disc tissue and adjacent nerve and blood vessel for separation. And then CT scanning is carried out to know whether the pushing back or the separation condition is satisfied, if so, the rotary-cut needle passes through the first channel and is placed to a designated position for rotary-cut operation, after the rotary-cut needle reaches the target position through CT scanning, a corresponding rotary-cut switch is opened to carry out rotary-cut on the herniated disk tissue, whether the nerve stimulation exists in the patient or not and the symptom relieving condition are closely monitored in the operation process, the rotary-cut needle is taken out in time to observe the rotary-cut intervertebral disk tissue condition and carry out CT scanning review, and after the patient symptom is obviously relieved and the CT is reviewed to display that the intervertebral disk bulges or the protrusion is removed ideally, the operation can be finished.

The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.

Claims

1. Intervertebral disc wicresoft operation passageway ware, its characterized in that: the device comprises a connector, a channel guide pipe and an inner guide pipe, wherein one end of the channel guide pipe is connected with the connector; the inner guide pipe is axially provided with a first channel in a penetrating way, one end of the inner guide pipe penetrates out of the channel guide pipe, and the end is provided with an expandable and contractible expansion part.

2. The minimally invasive surgical spinal disc gateway of claim 1, wherein: the other end of the inner conduit penetrates out of the connector.

3. The minimally invasive surgical spinal disc gateway of claim 2, wherein: and a second channel is formed among the inner guide pipe, the channel guide pipe and the connector.

4. The minimally invasive surgical spinal disc gateway of claim 3, wherein: the expansion part is a balloon and is arranged around the outer wall of the inner catheter, two sides of the balloon are respectively connected with the inner catheter and the channel catheter and form a sealed space, the second channel is communicated with the sealed space, and the second channel is provided with an inflation inlet.

5. The minimally invasive surgical spinal disc gateway of claim 4, wherein: the connector is Y type three way connection, the passageway pipe is connected with Y type three way connection's converging pipe, interior pipe passes Y type three way connection's a lateral pipe and extends to the outside, another lateral pipe and the inflation inlet intercommunication of Y type three way connection.

6. The minimally invasive surgical spinal disc gateway of claim 5, wherein: and a sealing part for sealing the second channel is arranged on the branch pipe of the Y-shaped three-way joint, which is provided with the inner conduit in a penetrating way.

7. A rotary shaver using the minimally invasive surgical gateway for intervertebral discs of claim 6, characterized in that: the balloon inflation and deflation device comprises a rotary cutting mechanism connected with a branch pipe of a Y-shaped three-way joint through which an inner guide pipe penetrates, and an inflation and deflation mechanism connected with another branch pipe of the Y-shaped three-way joint and used for inflating and deflating a balloon, wherein the rotary cutting mechanism penetrates through a first channel and extends to the outside of the first channel.

8. A rotary shaver according to claim 7, wherein: the rotary cutting mechanism comprises a rotary cutting needle, a rotary cutting handle, a rotating speed regulator and an adapter, wherein the output end of the rotary cutting handle is connected with the rotary cutting needle and used for driving the rotary cutting needle to rotate, the rotating speed regulator is arranged at the end part of the rotary cutting handle and used for regulating the rotating speed of the rotary cutting needle, and the adapter is connected with the rotary cutting handle and a branch pipe of a Y-shaped three-way joint in a penetrating manner, and the branch pipe is provided with an inner; the rotary cutting needle passes through the first channel and extends to the outside of the first channel.

9. A rotational atherectomy device according to claim 8, wherein: the adapter sets up the handle of department of holding when being convenient for advance the needle.

10. A rotary shaver according to claim 9, wherein: the inflation and deflation mechanism comprises an inflation and deflation switch connected with the other branch pipe of the Y-shaped three-way joint, a hose joint connected with the inflation and deflation switch, an inflation hose connected with the hose joint, an inflation and deflation handle connected with the inflation hose, and a pressure gauge for displaying the air pressure value in the balloon.