CN219962947U - Step-by-step expansion channel tube for spinal surgery - Google Patents
Step-by-step expansion channel tube for spinal surgery Download PDFInfo
- Publication number
- CN219962947U CN219962947U CN202320966544.8U CN202320966544U CN219962947U CN 219962947 U CN219962947 U CN 219962947U CN 202320966544 U CN202320966544 U CN 202320966544U CN 219962947 U CN219962947 U CN 219962947U
- Authority
- CN
- China
- Prior art keywords
- pipe
- expansion
- incision
- hollow
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001356 surgical procedure Methods 0.000 title claims abstract description 24
- 230000000750 progressive effect Effects 0.000 claims abstract 5
- 230000010339 dilation Effects 0.000 claims description 5
- 208000002847 Surgical Wound Diseases 0.000 abstract description 12
- 210000001519 tissue Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 206010029174 Nerve compression Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 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
- 210000001032 spinal nerve Anatomy 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 229940043263 traditional drug Drugs 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a gradual expansion channel pipe for spinal surgery, which comprises the following components: the incision positioning guide rod, the step-by-step expansion pipe and the instrument channel pipe are connected with a connecting cover in a detachable way; the step-by-step expansion pipe comprises at least two hollow expansion pipes with different diameters and sleeved inside and outside, the length of the hollow expansion pipe is gradually reduced from inside to outside, the hollow expansion pipe of the innermost layer is sleeved on the outer wall of the notch positioning guide rod, and the instrument channel pipe is sleeved on the outer wall of the hollow expansion pipe of the outermost layer. According to the utility model, the progressive expansion pipe is designed into at least two hollow expansion pipes sleeved with each other from inside to outside, so that the pipe diameter of the hollow expansion pipe is gradually increased from inside to outside, the progressive uniform expansion of the surgical incision can be realized, and the tissues around the incision are protected; after the incision is expanded, the instrument channel is sleeved on the hollow expansion pipe at the outermost layer and is contacted with the incision, then the incision positioning guide rod and the step-by-step expansion pipe are disassembled, and the connecting cover is installed, so that the external surgical instrument can be conveniently inserted.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a gradual expansion channel tube for spinal surgery.
Background
The description of the background art to which the present utility model pertains is merely for illustrating and facilitating understanding of the summary of the utility model, and should not be construed as an explicit recognition or presumption by the applicant that the applicant regards the prior art as the filing date of the first filed application.
With the age of human, the human body is easy to suffer from diseases of lumbar vertebra, thoracic vertebra and cervical vertebra, which bring great pain to the human body, while the traditional drug treatment and massage treatment have slow effect and the patients are very painful in the treatment process; however, during the operation treatment, wounds can be caused, and the beauty is affected; the incision part is accompanied with pain, acid swelling and tingling after operation; and can cause damage to muscles, blood vessels and corresponding nerves near the incision, and the recovery speed of the patient is slow. At present, the problems can be solved by using the minimally invasive operation of the spinal endoscope, and the minimally invasive operation of the spinal endoscope has the advantages of small trauma, light pain and quicker recovery, and is more and more favored by people.
Minimally invasive spinal endoscopy surgery generally requires a delicate surgical instrument, but how to more conveniently control the surgical instrument is always the focus of the spinal endoscopist. The minimally invasive surgery of the spinal endoscope is started by creating a tiny working channel, soft tissues at the incision are required to be expanded, the traditional expansion is usually that a clamp structure is opened and closed to be expanded, and the expansion of the cylindrical channel is realized through the adjustment of a handle end, so that the expansion effect is achieved, however, the mode is easy to cause muscle tearing at the joint of the cylindrical joint, and the expansion effect is not obvious. Thus, there is a great need for an expansion device that can uniformly expand soft tissue of an incision.
Disclosure of Invention
The utility model aims to provide a gradual expansion channel tube for spinal surgery, which solves the problems that the existing incision expansion instrument cannot uniformly expand incisions, so that muscle tearing of interfaces is easy to occur and the expansion effect is poor.
The technical scheme for solving the technical problems is as follows:
a step-wise expansion channel tube for spinal surgery, comprising: the incision positioning guide rod, the step-by-step expansion pipe and the instrument channel pipe are connected with a connecting cover in a detachable way;
the step-by-step expansion pipe comprises at least two hollow expansion pipes with different diameters and sleeved inside and outside, the length of the hollow expansion pipe is gradually reduced from inside to outside, the hollow expansion pipe of the innermost layer is sleeved on the outer wall of the notch positioning guide rod, the instrument channel pipe is sleeved on the outer wall of the hollow expansion pipe of the outermost layer, the notch positioning guide rod is longer than the hollow expansion pipe of the innermost layer, and the hollow expansion pipe of the outermost layer is longer than the instrument channel pipe.
When the step-by-step expansion channel tube for the spine surgery is used, the incision positioning guide rod is inserted into a surgery incision to reach a spine surgery position, the innermost hollow expansion tube is sleeved on the incision positioning guide rod and is contacted with the surgery incision, at the moment, an operator can sleeve the hollow expansion tube on the innermost hollow expansion tube and is contacted with the surgery incision again according to the size of the needed incision, and the tube diameter of the hollow expansion tube is gradually increased from inside to outside, so that the step-by-step uniform expansion of the surgery incision can be realized, the tissues around the incision are protected, and the pain of a patient is reduced; after the incision is expanded, the instrument channel is sleeved on the hollow expansion pipe at the outermost layer and is contacted with the incision, then the incision positioning guide rod and the step-by-step expansion pipe are disassembled, and the connecting cover is arranged at the rear end of the instrument channel pipe, so that the external surgical instrument can be conveniently inserted.
Further, the outer wall of the notch positioning guide rod and the outer wall of the hollow expansion pipe are provided with scales.
Further, both ends of the hollow expansion pipe are provided with smooth conical surface structures and form conical shrinkage openings, and the diameter of the round shrinkage conical opening of the outer-layer hollow expansion pipe is larger than that of the inner-layer hollow expansion pipe.
Further, the number of hollow expansion tubes is 2 to 6.
Further, conical positioning heads are arranged at two ends of the notch positioning guide rod.
Further, the incision positioning guide bar has a diameter of 2mm to 6mm.
Further, the length of the incision positioning guide bar is 250mm to 350mm.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the gradual expansion channel pipe for the spinal surgery, the pipe diameters of the gradual expansion pipes are gradually increased from inside to outside through the design of the unequal pipe diameters of the gradual expansion pipes, so that gradual and uniform expansion of a surgical incision can be realized, the tissues around the incision are protected, and the pain of a patient is reduced.
2. The utility model is through the apparatus channel tube, will apparatus channel tube cover and cut contact with the outmost hollow expansion tube while using, then dismantle cut locating guide bar and expansion tube step by step, and install the connecting cover in the rear end of the apparatus channel tube, facilitate the insertion of the external surgical instrument at this moment.
3. The outer walls of the hollow expansion tube and the incision positioning guide rod are provided with scales, so that an operator can judge the operation depth better, and normal tissues are prevented from being damaged.
Drawings
FIG. 1 is a schematic view of the overall structure of a notch positioning guide bar and a step-by-step dilation tube;
FIG. 2 is a schematic view of an explosive structure of a notch positioning guide bar and a step-by-step dilation tube;
FIG. 3 is a schematic view of the structure of the instrument channel tube and the connecting cap;
fig. 4 is a flow chart of the use of a step-wise expanding channel tube for spinal surgery.
In the figure: 1-incision positioning guide rod, 11-cone positioning head, 2-step expansion tube, 21-hollow expansion tube, 22-round contraction cone opening, 3-instrument channel tube, 4-connecting cover and 5-scale.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.
As shown in fig. 1 to 3, the present utility model provides a stepwise expansion channel tube for spinal surgery, comprising: the incision positioning guide rod 1, the step-by-step expansion pipe 2 and the instrument channel pipe 3, wherein the incision positioning guide rod 1 is inserted into an operation incision and reaches a spinal operation position for positioning and guiding the subsequent step-by-step expansion pipe 2. The step-by-step expansion pipe 2 comprises at least two hollow expansion pipes 21 with different diameters and sleeved inside and outside, the length of the hollow expansion pipes 21 is gradually reduced from inside to outside, the hollow expansion pipes 21 are conveniently sleeved in sequence, the diameters of the hollow expansion pipes 21 are gradually increased from inside to outside due to the fact that the hollow expansion pipes 21 are sleeved inside and outside, the hollow expansion pipe 21 of the innermost layer is sleeved on the outer wall of the notch positioning guide rod 1, and the instrument channel pipe 3 is sleeved on the outer wall of the hollow expansion pipe 21 of the outermost layer.
The both ends of cavity expansion pipe 21 all are equipped with the slick and sly conical surface structure and form circular cone shrink mouth 22, and the both ends of incision location guide bar 1 are provided with circular cone location head 11, and circular cone shrink mouth 22's slick and sly conical surface structure design and circular cone location head 11's design can avoid causing the damage to the surrounding tissue of incision, and the diameter of the circular shrink cone mouth 22 of outer cavity expansion pipe 21 is greater than the diameter of inlayer cavity expansion pipe 21, can avoid when the cover is established outer cavity expansion pipe 21 on the cavity expansion pipe 21 of inlayer, appears the condition of outer cavity expansion pipe 21 slippage, the layer upon layer nestification of cavity expansion pipe 21 of being convenient for.
The incision positioning guide rod 1 is longer than the hollow expansion tube 21 of the innermost layer, the hollow expansion tube 21 of the outermost layer is longer than the instrument channel tube 3, the length of the incision positioning guide rod 1 is longer than the length of the hollow expansion tube 21 of the innermost layer, the length of the hollow expansion tube of the outermost layer is longer than the length of the instrument channel tube 3, and the nesting operation of an operator is facilitated. Meanwhile, in order to facilitate better judgment of the operation depth by an operator and avoid damage to normal tissues, scales 5 are arranged on the outer wall of the incision positioning guide rod 1 and the outer wall of the hollow expansion tube 21, and the scales 5 are length scales.
The rear end of the instrument channel tube 3 can be detachably connected with the connecting cover 4, wherein the end, close to the operation incision, of the instrument channel tube 3 is the front end when in use, the end, far away from the operation incision is the rear end, the outer wall of the instrument channel tube 3 is provided with external threads for increasing the friction force of the outer wall of the instrument channel sleeve 3, and the situation of slipping is avoided when in use, in the embodiment, the inner wall of the connecting cover 4 is provided with internal threads matched with the external threads of the outer wall of the instrument channel tube 3, and detachable connection is realized through threaded connection. In other embodiments of the utility model, the instrument channel 3 and the connection cover 4 may be detachable by snap-fit.
Preferably, the number of the hollow expansion tubes 21 is 2 to 6, and the hollow expansion tubes 21 in this embodiment are 4, so that an operator can use a proper number of hollow expansion tubes 21 according to the size requirement of the surgical incision, for example, when an intervertebral fusion operation is performed, an intervertebral fusion device needs to be introduced, and at this time, the surgical incision requirement is slightly larger than that of a conventional spinal surgical incision, so that the step-by-step expansion is realized by using 4 to 6 hollow expansion tubes 21. For example, in the case of an intervertebral volume reduction operation, the protruding nucleus pulposus is removed, and in the case of treating spinal nerve compression, the requirement on the operation incision is smaller than that of a conventional spinal operation incision, and the step-by-step expansion can be realized by adopting 2 or 3 hollow expansion pipes 21.
The diameter of the incision positioning guide bar 1 is 2mm to 6mm, and the length of the incision positioning guide bar 1 is 250mm to 350mm. In this embodiment, the incision positioning guide bar 1 has a diameter of 4mm and a length of 300mm, and in other embodiments of the present utility model, the incision positioning guide bar 1 may be designed to have a diameter of 3mm, 5mm, 6mm, etc., and a length of 280mm, 320mm, etc., and specifically, the diameter and length thereof may be adjusted according to the surgical incision requirement.
As shown in fig. 4, the step-by-step expansion channel tube for spinal surgery of the present utility model is used as follows:
taking 4 hollow expansion pipes 21 as an example, a first hollow expansion pipe, a second hollow expansion pipe, a third hollow expansion pipe and a fourth hollow expansion pipe are sequentially arranged from inside to outside;
(1) After the surgical incision position is determined, as shown in fig. 4 (a), the incision positioning guide bar 1 is inserted into the surgical incision to reach the spinal surgical site;
(2) As shown in fig. 4 (b), a first hollow expansion tube is sleeved on the incision positioning guide bar 1 and is in contact with the surgical incision, as shown in fig. 4 (c), at this time, an operator sleeves a second hollow expansion tube on the first hollow expansion tube and is in contact with the surgical incision, as shown in fig. 4 (d), a third hollow expansion tube is sleeved on the second hollow expansion tube and is in contact with the surgical incision, as shown in fig. 4 (e), and a fourth hollow expansion tube is sleeved on the third hollow expansion tube and is in contact with the surgical interface, at this time, the surgical incision is uniformly expanded step by the hollow expansion tube 21;
(3) After the incision is expanded, the instrument channel tube 3 is sleeved on the fourth hollow expansion tube and contacted with the incision, as shown in fig. 4 (f), the lower incision positioning guide rod 1 and the step-by-step expansion tube 2 are disassembled, and the connecting cover 4 is arranged at the rear end of the instrument channel tube 3;
(4) As shown in fig. 4 (h), an external surgical instrument is inserted into the instrument channel tube 3 at this time, facilitating the surgical operation.
According to the incision condition, the first hollow expansion pipe is designed to have an inner diameter of 4.2mm, an outer diameter of 6mm and a length of 150mm, and the front end necking diameter is 5.2mm; the second hollow expansion pipe is designed to have an inner diameter of 6.2mm, an outer diameter of 8mm, a length of 140mm and a front end necking diameter of 7.2mm; the third hollow expansion pipe is designed to have an inner diameter of 8.2mm, an outer diameter of 10mm and a length of 130mm, and the front end necking diameter is 9.2mm; the fourth hollow expansion pipe is designed to have an inner diameter of 10.2mm, an outer diameter of 12mm, a length of 120mm and a front end necking diameter of 11.2mm, and the notch positioning guide rod 1 is designed to have a diameter of 4mm and a length of 300mm.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. A step-wise expansion channel tube for spinal surgery, comprising: the incision positioning guide rod (1), the step-by-step expansion pipe (2) and the instrument channel pipe (3), wherein the rear end of the instrument channel pipe (3) is detachably connected with a connecting cover (4);
the device comprises a step-by-step expansion pipe (2) and is characterized in that the step-by-step expansion pipe (2) comprises at least two hollow expansion pipes (21) with different diameters and sleeved inside and outside, the length of the hollow expansion pipe (21) is gradually reduced from inside to outside, the hollow expansion pipe (21) of the innermost layer is sleeved on the outer wall of the incision positioning guide rod (1), the device channel pipe (3) is sleeved on the outer wall of the hollow expansion pipe (21) of the outermost layer, the incision positioning guide rod (1) is longer than the hollow expansion pipe (21) of the innermost layer, and the hollow expansion pipe (21) of the outermost layer is longer than the device channel pipe (3).
2. The progressive dilation channel tube for spinal surgery according to claim 1, wherein the outer wall of the incision positioning guide bar (1) and the outer wall of the hollow dilation tube (21) are both provided with graduations (5).
3. The gradual expansion channel tube for spinal surgery according to claim 1 or 2, wherein both ends of the hollow expansion tube (21) are provided with smooth conical structures and form conical shrinkage ports (22), and the diameter of the conical shrinkage ports (22) of the outer layer of the hollow expansion tube (21) is larger than that of the inner layer of the hollow expansion tube (21).
4. A progressive expansion channel tube for spinal surgery as claimed in claim 3, characterized in that the number of hollow expansion tubes (21) is 2 to 6.
5. A stepwise expanding channel tube for spinal surgery according to claim 3, characterized in that both ends of the incision positioning guide bar (1) are provided with conical positioning heads (11).
6. A progressively expanding channel tube for spinal surgery as claimed in claim 3, characterized in that said incision positioning guide bar (1) has a diameter ranging from 2mm to 6mm.
7. The progressive dilation channel tube for spinal surgery according to claim 6, wherein the incision positioning guide bar (1) has a length of 250mm to 350mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320966544.8U CN219962947U (en) | 2023-04-24 | 2023-04-24 | Step-by-step expansion channel tube for spinal surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320966544.8U CN219962947U (en) | 2023-04-24 | 2023-04-24 | Step-by-step expansion channel tube for spinal surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219962947U true CN219962947U (en) | 2023-11-07 |
Family
ID=88587753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320966544.8U Active CN219962947U (en) | 2023-04-24 | 2023-04-24 | Step-by-step expansion channel tube for spinal surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219962947U (en) |
-
2023
- 2023-04-24 CN CN202320966544.8U patent/CN219962947U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9532885B2 (en) | Dynamically expandable cannulae and systems and methods for performing percutaneous surgical procedures employing same | |
| US7736370B2 (en) | Method for interconnecting longitudinal members extending along a spinal column | |
| US9055936B2 (en) | Over dilation | |
| US8834507B2 (en) | Dilation instruments and methods | |
| US5795289A (en) | Speculum | |
| US9795771B2 (en) | Expandable spinal access instruments and methods of use | |
| AU2009202271B2 (en) | Multi-lumen access port | |
| EP1824397B1 (en) | System for minimizing leakage of a distending medium during endoscopic surgical procedures | |
| EP2292165A2 (en) | A foam port introducer | |
| US20030130559A1 (en) | Anoscope | |
| US20090221879A1 (en) | Minimally Invasive Retractor Having Separable Blades | |
| JP2008546485A5 (en) | ||
| JP2008504936A (en) | Continuous dilator system | |
| JP2008546485A (en) | Surgical access instrument for spinal or orthopedic surgery | |
| US20110251461A1 (en) | Progressive surgical distraction device for atraumatic access | |
| JP2008546486A (en) | Expandable surgical site access system | |
| WO2012102842A1 (en) | Foraminoplasty device | |
| US20040193113A1 (en) | Expandable bore injection needle | |
| CN219962947U (en) | Step-by-step expansion channel tube for spinal surgery | |
| CN111772567A (en) | Novel lumbar decompression and intervertebral fusion large-channel endoscope device system | |
| CN201200464Y (en) | Instrument for grafting instrument from pedicle of vertebral arch | |
| CN213217330U (en) | Novel retractor for nasal cavity operation | |
| CN209490040U (en) | It is capable of the PPH auxiliary instrument of expansion space | |
| CN217853085U (en) | Special sleeve pipe of unilateral binary channels scope UBE | |
| CN217286846U (en) | Lumbar canal ventral decompression device of intervertebral disc |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Building 7, Phase I Standard Factory, Medical Equipment Zone, No. 898 Yaocheng Avenue, Taizhou City, Jiangsu Province, 225300 (Business premises: Northwest corner of Building 5, Building 1F and 2F, Phase I Standard Factory, No. 898 Yaocheng Avenue, Taizhou City) Patentee after: Bangshi Medical Technology Co.,Ltd. Country or region after: China Address before: 225300 building 7, phase I standard plant, medical device area, 898 Yaocheng Avenue, Taizhou City, Jiangsu Province Patentee before: JIANGSU BONSS MEDICAL TECHNOLOGY Co.,Ltd. Country or region before: China |