CN109512476B - Intraoperative traction device for early cancers of digestive tract - Google Patents
Intraoperative traction device for early cancers of digestive tract Download PDFInfo
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- CN109512476B CN109512476B CN201811566594.7A CN201811566594A CN109512476B CN 109512476 B CN109512476 B CN 109512476B CN 201811566594 A CN201811566594 A CN 201811566594A CN 109512476 B CN109512476 B CN 109512476B
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- pipe
- anchoring
- pulling
- traction
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
Abstract
The invention discloses an intraoperative traction device for early cancers of the alimentary canal, which comprises a traction tube and an anchoring tube, wherein the inlet end of the traction tube and the inlet end of the anchoring tube are both communicated with a negative pressure device; the outer wall of the outlet end of the anchoring pipe is fixedly connected with a guide ring, a plurality of forceps clips a are uniformly arranged on the outer wall of the outlet end of the anchoring pipe along the circumferential direction, and a strip-shaped sliding recess is formed in the middle of the outer wall of the anchoring pipe; the outlet end of the traction pipe penetrates through the guide ring, a plurality of forceps clamps b are uniformly arranged on the outer wall of the outlet end of the traction pipe along the circumferential direction, a protrusion is arranged in the middle of the traction pipe and matched with the sliding recess, the traction pipe is connected with the anchoring pipe in a sliding mode, and a driving device b is arranged at the tail of the anchoring pipe. The invention can change the force point of the clamp along with the operation process, so that the pathological tissue is always kept in a state parallel to the surgical resection direction, and the use number of titanium clamps is reduced; meanwhile, the pulling is not easy to fall off, and the pulling can be repeatedly performed even if the pulling fails due to falling off.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an intraoperative traction device for early cancers of the digestive tract.
Background
Cancer is a malignant tumor derived from human epithelial tissue, which when advanced to a middle or advanced stage, undergoes local or systemic metastasis, ultimately threatening life. With the enhancement of health care consciousness of patients and the development of a digestive endoscopy technology, cancers of hollow organs of partial digestive tracts, such as esophageal cancer, gastric cancer, colon cancer and the like, can be found in early stage through physical examination or a special endoscopy technology, if canceration is still limited in epithelial tissues of the digestive tracts or breaks through the epithelial tissues but still invades the walls of the digestive tracts, stripping excision can be carried out through the digestive endoscopy, and the minimally invasive technology has small damage to the patients and can achieve clinical healing effects without the need of abdominal incision and thoracotomy for lesions. Is the standard technology for treating the early cancer of the digestive tract at present.
The difficulty of the endoscopic minimally invasive surgery is two: one is to maintain a good surgical field. If the lesion is positioned directly in front of the field of view during resection, i.e., in a perpendicular relationship to the direction of resection with the scalpel, it is difficult to remove. Secondly, the tension of the cut lesion tissue is maintained. Since the lesion cancer tissue is soft, if the lesion tissue cannot be tightened and straightened at the time of excision, it is difficult to separate the excision. In order to solve the two difficulties, the currently adopted methods comprise a titanium clamp wire pulling technology, a magnetic bead gravity traction technology, a titanium clamp rubber ring traction technology, a snare traction technology and the like, the principles of the technologies are that one or more titanium clamps are clamped and injected at the edge of a pathological change, the pathological change tissue can be pulled to be parallel to the surgical excision direction through the traction of a suture, a rubber ring or the action of gravity and the like, and the pathological change tissue is tensioned and straightened at the same time, so that the aim of rapid excision is fulfilled. However, these techniques have two common disadvantages: firstly, once the titanium clip clamps pathological change tissue, the clamp force point can not move any more, and the pulled pathological change tissue is continuously cut off along with the operation process, the residual tissue which is not cut off is possibly not parallel to the cutting direction of the scalpel, the titanium clip clamps pathological change tissue can be repeatedly used, the excessive titanium clips can block the operation visual field, and particularly, the operation process and the operation effect are easily influenced in the esophagus and the colon with narrow space. Secondly, the pathological tissue is soft, the jaws of the titanium clip are not tight, or the titanium clip is pulled continuously or the pulling force is too large in the operation, so that the titanium clip falls off to cause the pulling failure, thereby influencing the operation process and effect.
Disclosure of Invention
The invention aims to provide an intraoperative traction device for early cancers of the digestive tract, which can change the force application point of a clamp along with the operation process, so that pathological tissues are always kept in a state parallel to the surgical resection direction, and the use number of titanium clamps is reduced; meanwhile, the pulling is not easy to fall off, and the pulling can be repeatedly performed even if the pulling fails due to falling off.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the invention discloses an intraoperative traction device for early cancers of the alimentary canal, which comprises an anchoring pipe, wherein the inlet end of the traction pipe and the inlet end of the anchoring pipe are both communicated with a negative pressure device; the outer wall of the outlet end of the anchoring pipe is fixedly connected with a guide ring, a plurality of forceps jaws a are uniformly arranged on the outer wall of the outlet end of the anchoring pipe along the circumferential direction, a sliding recess is arranged in the middle of the outer wall of the anchoring pipe, the sliding recess is in a strip shape parallel to the axial direction of the anchoring pipe, a driving device a is arranged at the tail of the anchoring pipe, and the driving device a is in transmission connection with the forceps jaws a; the outlet end of the traction pipe penetrates through the guide ring, a plurality of forceps jaws b are uniformly arranged on the outer wall of the outlet end of the traction pipe along the circumferential direction, a protrusion is arranged in the middle of the traction pipe and matched with the sliding recess, the traction pipe is connected with the anchoring pipe in a sliding mode, a driving device b is arranged at the tail of the anchoring pipe, and the driving device b is in transmission connection with the forceps jaws b.
Preferably, the protrusion is a bar shape, and the length of the protrusion is less than that of the sliding recess.
Preferably, the sliding recess is a rectangular groove.
Preferably, the sliding recess is a dovetail groove.
Preferably, the suction tube and the head of the pulling tube are suction heads with gradually reduced sizes.
Preferably, there are two of said jaws a and two of said jaws b.
Preferably, the negative pressure device is a rotary piston type negative pressure suction machine.
The invention has the beneficial effects that:
1. the invention can change the force point of the clamp along with the operation process, so that the pathological tissue is always kept in a state of being parallel to the surgical resection direction, and the use number of the titanium clamps is reduced.
2. The invention is not easy to fall off in the drawing process, and can repeatedly draw even if the drawing fails due to the falling off.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a cross-sectional view taken along direction A of the first embodiment in FIG. 1;
fig. 5 is a sectional view taken along direction a of the second embodiment in fig. 1.
In the figure: 101-anchor tube, 102-jaws a, 103-guide ring, 104-sliding recess, 201-pulling tube, 202-jaws b, 203-protrusion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, one embodiment of the method comprises a pulling pipe 201 and an anchoring pipe 101, wherein the inlet end of the pulling pipe 201 and the inlet end of the anchoring pipe 101 are both communicated with a negative pressure device; the outer wall of the outlet end of the anchoring pipe 101 is fixedly connected with a guide ring 103, a plurality of jaws a102 are uniformly arranged on the outer wall of the outlet end of the anchoring pipe 101 along the circumferential direction, a sliding recess 104 is arranged in the middle of the outer wall of the anchoring pipe 101, the sliding recess 104 is in a strip shape parallel to the axial direction of the anchoring pipe 101, a driving device a is arranged at the tail of the anchoring pipe 101, and the driving device a is in transmission connection with the jaws a 102; the outlet end of the pulling pipe 201 penetrates through the guide ring 103, the outer wall of the outlet end of the pulling pipe 201 is uniformly provided with a plurality of jaws b202 along the circumferential direction, the middle of the pulling pipe 201 is provided with a protrusion 203, the protrusion 203 is matched with the sliding recess 104, the pulling pipe 201 is in sliding connection with the anchoring pipe 101, the tail of the anchoring pipe 101 is provided with a driving device b, the driving device b is in transmission connection with the jaws b202, the protrusion 203 is in a strip shape, the length of the protrusion 203 is smaller than that of the sliding recess 104, the sliding recess 104 is a rectangular groove, the heads of the anchoring pipe 101 and the pulling pipe 201 are suction heads with gradually reduced sizes, the number of the jaws a102 is two, the number of the jaws b202 is two, and the negative pressure device is a rotary piston type negative pressure suction machine.
As shown in fig. 1 to 3 and 4, the second embodiment is different from the first embodiment in that the sliding recess 104 is a dovetail groove.
When the traction device is used in practice, when the endoscopic dissection operation is carried out to the extent that the traction device is needed, the foreign body forceps are fed through the gastroscope biopsy hole, the head of the anchoring pipe 101 is clamped by the foreign body forceps outside the body, meanwhile, the jaws a102 at the head of the anchoring pipe 101 are opened, when the foreign body forceps reach the anchoring point, the external negative pressure device continuously sucks the foreign body forceps, the pipe wall tissue of the alimentary canal at the anchoring point is sucked into the head of the anchoring pipe 101, the foreign body forceps are loosened, the jaws a102 at the head of the anchoring pipe 101 are closed, and the pipe wall tissue is clamped. And the negative pressure suction is continued in vitro, so that the double effects of clamping and negative pressure adsorption can be achieved on the tube wall tissue of the anchoring point, and the tube wall tissue is not easy to fall off during the traction.
After the anchoring pipe 101 is fixed, the negative pressure suction head at the front end of the traction pipe 201 is clamped by a foreign body, meanwhile, the clamp b202 is opened, the anchoring pipe 101 is fixed outside the body, the foreign body clamp moves along with the gastroscope, the traction pipe 201 is in a track, reaches the lesion tissue needing to be clamped by the foreign body clamp through the guide ring 103, the external negative pressure device continuously sucks the lesion tissue into the head of the traction pipe 201, the external negative pressure device reversely moves to continuously suck, the tube wall tissue of the alimentary canal at the anchoring point is sucked into the head end of the anchoring pipe 101, the foreign body clamp is released, the clamp a102 is closed, and the tube wall tissue is clamped by the clamp. And the negative pressure suction is continued in vitro, so that the double effects of clamping and negative pressure adsorption can be achieved on the tube wall tissue of the anchoring point, and the tube wall tissue is not easy to fall off during the traction.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (6)
1. An intraoperative traction device for early cancers of the digestive tract, characterized by: the device comprises a traction pipe (201) and an anchoring pipe (101), wherein the inlet end of the traction pipe (201) and the inlet end of the anchoring pipe (101) are both communicated with a negative pressure device;
the outer wall of the outlet end of the anchoring pipe (101) is fixedly connected with a guide ring (103), a plurality of jaws a (102) are uniformly arranged on the outer wall of the outlet end of the anchoring pipe (101) along the circumferential direction, a sliding recess (104) is arranged in the middle of the outer wall of the anchoring pipe (101), the sliding recess (104) is in a strip shape parallel to the axial direction of the anchoring pipe (101), a driving device a is arranged at the tail part of the anchoring pipe (101), and the driving device a is in transmission connection with the jaws a (102);
the outlet end of the pulling pipe (201) penetrates through the guide ring (103), the outer wall of the outlet end of the pulling pipe (201) is uniformly provided with a plurality of jaws b (202) along the circumferential direction, the middle of the pulling pipe (201) is provided with a protrusion (203), the protrusion (203) is matched with the sliding recess (104), the pulling pipe (201) is in sliding connection with the anchoring pipe (101), the tail of the anchoring pipe (101) is provided with a driving device b, the driving device b is in transmission connection with the jaws b (202), the protrusion (203) is in a strip shape, and the length of the protrusion (203) is smaller than that of the sliding recess (104).
2. The intraoperative pulling device for early cancer of the digestive tract according to claim 1, wherein: the sliding recess (104) is a dovetail groove.
3. The intraoperative pulling device for early cancer of the digestive tract according to claim 1, wherein: the sliding recess (104) is a rectangular groove.
4. The intraoperative pulling device for early cancer of the digestive tract according to claim 1, wherein: the heads of the anchoring pipe (101) and the pulling pipe (201) are suction heads with gradually reduced sizes.
5. The intraoperative pulling device for early cancer of the digestive tract according to claim 1, wherein: the number of the jaws a (102) is two, and the number of the jaws b (202) is two.
6. The intraoperative pulling device for early cancer of the digestive tract according to claim 1, wherein: the negative pressure device is a rotary piston type negative pressure suction machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811566594.7A CN109512476B (en) | 2018-12-19 | 2018-12-19 | Intraoperative traction device for early cancers of digestive tract |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811566594.7A CN109512476B (en) | 2018-12-19 | 2018-12-19 | Intraoperative traction device for early cancers of digestive tract |
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| Publication Number | Publication Date |
|---|---|
| CN109512476A CN109512476A (en) | 2019-03-26 |
| CN109512476B true CN109512476B (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811566594.7A Active CN109512476B (en) | 2018-12-19 | 2018-12-19 | Intraoperative traction device for early cancers of digestive tract |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7074226B2 (en) * | 2002-09-19 | 2006-07-11 | Sdgi Holdings, Inc. | Oval dilator and retractor set and method |
| GB0319257D0 (en) * | 2003-08-15 | 2003-09-17 | Finsbury Dev Ltd | Surgical instruments and computer programs for use therewith |
| JP4302602B2 (en) * | 2004-09-24 | 2009-07-29 | オリンパス株式会社 | Endoscopic treatment tool, endoscopic treatment system, and support adapter |
| US8157727B2 (en) * | 2007-07-16 | 2012-04-17 | Ethicon Endo-Surgery, Inc. | Surgical methods and devices with movement assistance |
| US8241294B2 (en) * | 2007-12-19 | 2012-08-14 | Depuy Spine, Inc. | Instruments for expandable corpectomy spinal fusion cage |
| US10595711B2 (en) * | 2009-12-16 | 2020-03-24 | Boston Scientific Scimed, Inc. | System for a minimally-invasive, operative gastrointestinal treatment |
| CN202619728U (en) * | 2012-03-09 | 2012-12-26 | 李勇 | Surgical combined operation wire retractor |
| CN105411519B (en) * | 2015-12-21 | 2017-11-14 | 张为 | A kind of movable foramen intervertebrale lens system |
| CN205391141U (en) * | 2016-03-03 | 2016-07-27 | 赵堃 | Tumor stripper |
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| CN109512476A (en) | 2019-03-26 |
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