CN106821461B - Suction cutting tube - Google Patents
Suction cutting tube Download PDFInfo
- Publication number
- CN106821461B CN106821461B CN201710270361.1A CN201710270361A CN106821461B CN 106821461 B CN106821461 B CN 106821461B CN 201710270361 A CN201710270361 A CN 201710270361A CN 106821461 B CN106821461 B CN 106821461B
- Authority
- CN
- China
- Prior art keywords
- outer sleeve
- opening
- handle
- stop edge
- pushing handle
- 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
- 238000005520 cutting process Methods 0.000 title claims abstract description 25
- 208000037062 Polyps Diseases 0.000 description 10
- 210000003128 head Anatomy 0.000 description 4
- 230000035755 proliferation Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/24—Surgical instruments, devices or methods, e.g. tourniquets for use in the oral cavity, larynx, bronchial passages or nose; Tongue scrapers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/32056—Surgical snare instruments
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Otolaryngology (AREA)
- Pulmonology (AREA)
- Surgical Instruments (AREA)
- External Artificial Organs (AREA)
Abstract
The present invention provides an attraction cutting tube, comprising: one end of the outer sleeve is provided with a handle for holding and a connecting piece for connecting the aspirator, and the other end of the outer sleeve is provided with a bevel cut opening; a pusher mounted on the outer sleeve, disposed in front of the handle, and slidable along a predetermined path relative to the outer sleeve; the inner core is sleeved in the outer sleeve and comprises a cutter head and a core main body, a connecting hole is formed in the core main body, and an insert of the pushing handle is embedded into the connecting hole, so that the inner core is fixedly connected to the pushing handle.
Description
Technical Field
The invention relates to a medical instrument, in particular to an aspiration cutting tube used in medical operation for cutting polyps or proliferation bodies.
Background
In the prior art, it is often necessary to use a polyp remover in a minimally invasive ear-nose operation, and a common removal mechanism typically includes an outer cannula having an opening at the front for receiving a polyp or a propagator and a blade positioned within the outer cannula, and then removing the polyp or propagator by manipulating the blade. However, the distal end of the outer sleeve of the above-described removal mechanism is closed, resulting in a polyp or a propagule located at the distal end of the outer sleeve being difficult to be accommodated in the opening, unable to be excised by the blade, and having an excision dead angle.
Chinese patent application 00216284.9 discloses a "posterior naris polyp remover" in which the slide rod extends beyond the sleeve for removal of polyps, however, the slide rod of the remover described in the above-mentioned patent requires extremely precise positioning and control of the removal location which may otherwise cause additional, undesirable injury to the patient.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art, and provide the suction cutting tube with reasonable structural design, so that polyps or proliferation bodies positioned at the top end of the suction cutting tube can be excised.
Specifically, the invention adopts the following technical scheme:
an aspiration cut tube, comprising:
one end of the outer sleeve is provided with a handle for holding and a connecting piece for connecting the aspirator, and the other end of the outer sleeve is provided with a bevel cut opening;
a pusher mounted on the outer sleeve, disposed in front of the handle, and slidable along a predetermined path relative to the outer sleeve;
the inner core is sleeved in the outer sleeve and comprises a cutter head and a core main body, a connecting hole is formed in the core main body, and an insert of the pushing handle is embedded into the connecting hole, so that the inner core is fixedly connected to the pushing handle.
According to a preferred embodiment of the invention, an upper stop edge is provided at the upper edge of the bevel opening and a lower stop edge is provided at the lower edge of the bevel opening, the upper and lower stop edges being in the same plane as the bevel opening.
More preferably, the length of the lower stop edge is in the range of 0.5-1mm and the wall thickness is in the range of 0.5-1 mm.
According to a preferred embodiment of the invention, the bevel opening is located at a plane forming an angle with the horizontal in the range of 20 ° -70 °.
More preferably, the bevel opening is located at an angle in the range of 30 ° -60 ° to the horizontal.
According to a preferred embodiment of the invention, the outer sleeve is provided with an exhaust hole, the pushing handle is connected with a baffle plate, the exhaust hole is arranged in front of the pushing handle, and the baffle plate is attached to the inner wall of the outer sleeve and is used for closing and opening the exhaust hole.
According to a preferred embodiment of the invention, the connecting element is stepped with a narrowing.
According to a preferred embodiment of the invention, the maximum outer diameter of the chamfer opening does not exceed 2mm.
The suction cutting tube has a simple structure and reasonable design, and the top end of the outer sleeve is provided with the bevel opening, so that the suction cutting tube has no cutting dead angle and can cut polyps or proliferation bodies in the nose and the ear in a maximum range.
Drawings
FIG. 1 is a side view of an aspiration cutting tube according to one embodiment of the present invention;
FIG. 2 is a top view of the suction cut tube of FIG. 1;
fig. 3 is an enlarged partial cross-sectional view of a beveled opening portion of an aspiration cutting tube in accordance with one embodiment of the present invention;
fig. 4 is a top view of an inner core according to one embodiment of the present invention;
fig. 5 is a side view of the core of fig. 4;
fig. 6 is a side view of an outer sleeve according to another embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2 and 4-5, an aspiration cutting tube includes: the outer sleeve 1, the inner core 2 and the pushing handle 3. Wherein one end of the outer sleeve 1 is provided with a handle 11 for holding and a connecting piece 12 for connecting a suction device (not shown), the other end is provided with a bevel cut opening 13, the push handle 3 is mounted on the outer sleeve 1, is arranged in front of the handle 11 and can slide relative to the outer sleeve along a preset path, the inner core 2 comprises a cutter head 21 and a core main body 22, a connecting hole 23 is formed in the core main body 22, an insert on the push handle 3 can be inserted into the connecting hole 23, so that the inner core 2 is fixedly connected to the push handle 3, and when an operator pushes the push handle 3, the inner core 2 is driven to move, and cutting operation is performed through the cutter head 21.
It should be appreciated that the predetermined path may be a predetermined stroke of the plunger at the time of performing the excision procedure, along which the pusher moves, thereby causing the plunger to move in accordance with the predetermined stroke. The predetermined path may be a slot formed in the outer sleeve such that the pusher is movable within the slot. The distance of the push handle 3 relative to the handle 11 should be such that the operator can operate with one hand.
Preferably, the bevel opening 13 is located at an angle in the range of 20 ° -70 ° to the horizontal, more preferably, the bevel opening 13 is located at an angle in the range of 30 ° -60 ° to the horizontal. In this embodiment, the bevel opening 13 is located at an angle of 45 ° to the horizontal. The maximum outer diameter of the beveled opening is no more than 2mm for accommodating a polyp or a propagule in the nasal or ear cavity therein, waiting to be resected by the cutter head 21 with the aspirator engaged.
Referring to fig. 3, an upper stop edge 131 is provided at the upper edge of the bevel opening 13 and a lower stop edge 132 is provided at the lower edge of the bevel opening, the upper and lower stop edges preferably being in the same plane as the bevel opening. Advantageously, the provision of stop edges at the upper and lower edges of the beveled opening may prevent the cutting head of the inner core from unintentionally extending beyond the outer sleeve, causing undesired injury to the patient.
In addition, the length of the lower stop edge 132 is preferably in the range of 0.5-1mm and the wall thickness is preferably in the range of 0.5-1 mm. In this way, the lower stop edge may be made somewhat stiff and may act to strip tissue when softer tissue is encountered during a cutting operation.
In addition, a sensor can be arranged at the lower stop edge and used for detecting the conditions in the ear cavity or the nasal cavity, and the suction cutting tube plays a role of a probe at the moment.
According to one aspect of the invention, the outer sleeve 1 is provided with a vent hole 14, and the push handle 3 is connected with a baffle plate, the vent hole 14 is arranged in front of the push handle 3 (see fig. 2), the baffle plate is attached to the inner wall of the outer sleeve, moves along with the movement of the push handle, is used for closing the vent hole when moving forwards, and is opened when at the initial position. Here, the initial position refers to a position where the pusher is at its rearmost end. In addition, an inner core replacing port can be arranged on the outer sleeve 1, and the inner core is sleeved into the outer sleeve through the inner core replacing port so as to facilitate the replacement and disassembly of the inner core.
According to one aspect of the invention, the connector 12 is stepped to taper to more securely connect the connection tube to the aspirator.
The working principle of the suction cutting tube according to an embodiment of the present invention when performing a resection operation is described below.
When the excision operation is required to be executed, the attraction cutting tube is arranged at the position of the tissue to be excised, the tissue to be excised is accommodated in the beveling opening of the attraction cutting tube, the tissue to be excised is arranged in the outer sleeve, the pushing handle is pushed forward to drive the inner core to move, the tool bit of the inner core moves forward, meanwhile, the baffle plate connected to the pushing handle moves forward to close the exhaust hole on the outer sleeve, at the moment, the suction force provided by the aspirator in the outer sleeve is increased, the tissue to be excised is further attracted into the outer sleeve to continuously push the pushing handle, the tool bit moves further, finally the tissue to be excised is excised, at the moment, the beveling opening and the exhaust hole are both in a closed state, the suction force is the largest, after excision is finished, whether a larger suction force or a smaller suction force is required to be provided is determined according to actual conditions, when the larger suction force is required to be provided, the exhaust hole is maintained in the closed state, when the smaller suction force is required to be provided, the pushing handle is pulled backward, the baffle plate is opened to the exhaust hole, and the suction force in the outer sleeve is reduced.
In the above embodiment, the suction cut tube is substantially horizontal, and according to another aspect of the present invention, the suction cut tube may be an angled elbow, as shown in fig. 6.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. An aspiration cutting tube, comprising:
one end of the outer sleeve is provided with a handle for holding and a connecting piece for connecting the aspirator, and the other end of the outer sleeve is provided with a bevel cut opening;
a pusher mounted on the outer sleeve, disposed in front of the handle, and slidable along a predetermined path relative to the outer sleeve;
the inner core is sleeved in the outer sleeve and comprises a cutter head and a core main body, a connecting hole is formed in the core main body, and an insert of the pushing handle is embedded into the connecting hole, so that the inner core is fixedly connected to the pushing handle;
an upper stop edge is arranged at the upper edge of the inclined cutting opening, a lower stop edge is arranged at the lower edge of the inclined cutting opening, the upper stop edge, the lower stop edge and the inclined cutting opening are on the same plane, the length of the lower stop edge is in the range of 0.5-1mm, and the wall thickness is in the range of 0.5-1 mm;
the outer sleeve is provided with an exhaust hole, the pushing handle is connected with a baffle plate, the exhaust hole is arranged in front of the pushing handle, and the baffle plate is attached to the inner wall of the outer sleeve and is used for closing and opening the exhaust hole;
the inclined cutting opening is positioned on the surface and forms an included angle with the horizontal plane within the range of 20-70 degrees.
2. The suction cut tube of claim 1, wherein the beveled opening is located at an angle in the range of 30 ° -60 ° from horizontal.
3. The suction cut tube of claim 1, wherein the connector is stepped with a gradual narrowing.
4. The suction cut tube of claim 1, wherein the maximum outer diameter of the beveled opening is no more than 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710270361.1A CN106821461B (en) | 2017-04-24 | 2017-04-24 | Suction cutting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710270361.1A CN106821461B (en) | 2017-04-24 | 2017-04-24 | Suction cutting tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106821461A CN106821461A (en) | 2017-06-13 |
| CN106821461B true CN106821461B (en) | 2024-02-06 |
Family
ID=59143145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710270361.1A Active CN106821461B (en) | 2017-04-24 | 2017-04-24 | Suction cutting tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106821461B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112386310B (en) * | 2020-11-13 | 2021-08-31 | 綦进颜 | Epiglottic abscess incision knife |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2487343Y (en) * | 2001-07-19 | 2002-04-24 | 王晶 | Low-wound nasal polyp cutting sucking knife |
| CN201533858U (en) * | 2009-11-24 | 2010-07-28 | 陈仁杰 | Multifunctional rotary scalpel for nasal cavity operation |
| EP2520236A1 (en) * | 2011-05-03 | 2012-11-07 | Eberle GmbH & Co. KG | Rotating surgical instrument |
| CN203564308U (en) * | 2013-09-09 | 2014-04-30 | 西安外科医学科技有限公司 | Vertebral column puncturing pressure reducer |
| CN207412218U (en) * | 2017-04-24 | 2018-05-29 | 秦皇岛市第一医院 | Attract cutting pipe |
-
2017
- 2017-04-24 CN CN201710270361.1A patent/CN106821461B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2487343Y (en) * | 2001-07-19 | 2002-04-24 | 王晶 | Low-wound nasal polyp cutting sucking knife |
| CN201533858U (en) * | 2009-11-24 | 2010-07-28 | 陈仁杰 | Multifunctional rotary scalpel for nasal cavity operation |
| EP2520236A1 (en) * | 2011-05-03 | 2012-11-07 | Eberle GmbH & Co. KG | Rotating surgical instrument |
| CN203564308U (en) * | 2013-09-09 | 2014-04-30 | 西安外科医学科技有限公司 | Vertebral column puncturing pressure reducer |
| CN207412218U (en) * | 2017-04-24 | 2018-05-29 | 秦皇岛市第一医院 | Attract cutting pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106821461A (en) | 2017-06-13 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |