阅读说明：本技术 一种新型内镜下黏膜剥离装置 (Novel mucosa is peeled off under scope device ) 是由 孙会会 许树长 陈莹 王振翔 王莉萍 于 2020-12-28 设计创作，主要内容包括：本发明涉及一种新型内镜下黏膜剥离装置,包括主管体、注射模块、切割模块、牵引模块；主管体内设有若干通道以容纳注射模块、切割模块、牵引模块；注射模块包括若干注射器,可向目标物注入液体；所述切割模块包括若干切割器,用于切割目标物,切割器为电极导丝,环绕主管体轴向均匀布置且布置于所述注射模块外侧；其切割器之间构成网状结构；所述牵引模块设于主管体中心,与所述主管体活动连接,为负压吸引管,其末端端口直径大于其管体直径呈碗状倒扣形,所述牵引模块通过外部负压源对目标物形成负压牵引作用；其优点在于：可简化ESD操作步骤,实现在内镜下简单、便捷的一次性切除及切除病灶完整回收,减少病变残留。(The invention relates to a novel mucosa stripping device under an endoscope, which comprises a main pipe body, an injection module, a cutting module and a traction module, wherein the injection module is arranged on the main pipe body; a plurality of channels are arranged in the main pipe body to accommodate the injection module, the cutting module and the traction module; the injection module comprises a plurality of injectors and can inject liquid into the target object; the cutting module comprises a plurality of cutters for cutting a target object, the cutters are electrode guide wires and are uniformly arranged around the axial direction of the main pipe body and arranged outside the injection module; a reticular structure is formed between the cutters; the traction module is arranged in the center of the main pipe body, is movably connected with the main pipe body, is a negative pressure suction pipe, has a tail end port diameter larger than the pipe body diameter and is in a bowl-shaped inverted buckle shape, and forms a negative pressure traction effect on a target object through an external negative pressure source; the advantages are that: can simplify ESD operation steps, realize simple and convenient one-time excision under an endoscope and complete recovery of an excised focus, and reduce pathological change residues.)

1. A novel mucosa stripping device under an endoscope is characterized by comprising a main pipe body, an injection module, a cutting module and a traction module, wherein the injection module, the cutting module and the traction module are movably connected with the main pipe body; the injection module comprises a plurality of injectors for injecting the target object; the cutting module comprises a plurality of cutters for cutting the target object; the traction module is used for fixing a target object; the tail ends of the cutting modules form a net-shaped structure.

2. The novel endoscopic mucosal dissection device according to claim 1, wherein the traction module is located at the center of the main tube body, the injection module and the cutting module are uniformly arranged around the axial direction of the main tube body, and the cutting module is arranged outside the injection module.

3. The novel endoscopic mucosal dissection device according to claim 2, wherein the injection module is provided with 4-6 groups of injectors.

4. The novel endoscopic mucosal dissection device according to claim 2, wherein the cutter is provided with an electrode guide wire at the tail end.

5. The novel endoscopic mucosal dissection device according to claim 3, wherein the cutting module is provided with 4-6 groups of the cutters.

6. The novel endoscopic mucosal dissection device according to claim 2, wherein the traction module is a vacuum suction tube movably connected.

7. The novel endoscopic mucosal dissection device according to claim 5, wherein the port diameter of the traction module is larger than the tube diameter of the traction module.

8. The novel endoscopic mucosal dissection device according to claim 1, wherein the main tube further comprises a camera device and an illumination device at its end.

9. A surgical instrument comprising the novel endoscopic mucosal dissection device according to any one of claims 1 to 8.

10. The surgical instrument according to claim 9, comprising a control system and a connection system, wherein the control system is connected with the novel endoscopic mucosal dissection device through the connection system; the control system is used for providing a high-frequency electric switching power supply and a traction source.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a novel endoscopic mucosal dissection device.

Background

ESD (ESD) therapy-based minimally invasive treatment of digestive endoscopes has become an option, even a priority, for early stage treatment of mucosal tumors of the digestive tract and certain submucosal tumors. For digestive tract early cancer and precancerous lesion without lymph node metastasis and with shallow infiltration depth and tumors under the digestive tract mucosa, complete resection and curative resection can be achieved by using ESD. In the conventional ESD operation, the mucosa layer and the muscle layer are stripped by injecting related medicaments under the mucosa, the needle type incision knife is used for respectively pointing out the excision boundaries point by point, and then the needle type knife is used for incision and stripping by an IT knife. However, for some lesions with large area, unclear boundary and adhesion, the conventional ESD process is particularly tedious and time-consuming when treating the lesions, and is prone to bleeding, perforation, incomplete mucosal peeling, lesion residue and the like during operation, while the choice of open surgery for treatment causes problems of overlarge wound, excessive treatment and the like.

Chinese patent application CN208958311U discloses an auxiliary tube for endoscopic gastrointestinal mucosa peeling, which comprises an auxiliary tube, a control rod and at least two guiding hoses, wherein at least two through-hole pipelines are arranged on the tube wall of the auxiliary tube along the axial direction of the auxiliary tube, one end of each guiding hose is communicated with each through-hole pipeline, the through-hole pipelines and the guiding hoses corresponding to the through-hole pipelines form a control rod channel, and the control rod is movably arranged in one of the control rod channels in a penetrating manner. The hemostatic clamp can be not limited by an operation part, the directions and the forces of traction and pushing can be adjusted in real time, the control hand feeling of an endoscope cannot be influenced, and the mucosa clamped by the hemostatic clamp is pulled through the traction rope on the rod, so that the whole mucosa is stripped, the specimen is still tied to the traction rod, the detachment of the specimen is not needed to be worried after the operation, and the wound surface is directly treated. It only addresses the problem of target pull-back, which does not accomplish systematic optimization of existing ESD operation.

In summary, there is a need for a novel endoscopic mucosal dissection device that can simplify ESD operation steps, achieve simple and convenient disposable excision under an endoscope and complete recovery of excision focus, and reduce lesion residues.

Disclosure of Invention

The invention aims to provide a novel endoscopic mucosal dissection device which can simplify ESD operation steps, realize simple and convenient one-time excision under an endoscope and complete recovery of an excision focus and reduce lesion residues.

In order to achieve the purpose, the invention adopts the technical scheme that:

a novel mucosa peeling device under an endoscope comprises a main pipe body, an injection module, a cutting module and a traction module, wherein the injection module, the cutting module and the traction module are movably connected with the main pipe body; the injection module comprises a plurality of injectors for injecting the target object; the cutting module comprises a plurality of cutters for cutting the target object; the traction module is used for fixing a target object; the tail ends of the cutting modules form a net-shaped structure.

As a preferred technical scheme, the traction module is located at the center of the main pipe body, the injection module and the cutting module are uniformly arranged around the main pipe body in the axial direction, and the cutting module is arranged outside the injection module.

As a preferred technical scheme, the injection module is provided with 4-6 groups of injectors.

As a preferable technical scheme, the tail end of the cutter is an electrode guide wire.

As a preferable technical scheme, the cutting module is provided with 4-6 groups of the cutters.

As a preferable technical scheme, the traction module is a negative pressure suction tube movably connected.

As a preferred technical solution, the diameter of the port of the traction module is larger than the diameter of the pipe body thereof.

As a preferable technical solution, the end of the main tube further includes an image pickup device and an illumination device.

Another object of the present invention is to provide a surgical instrument capable of realizing stable operation of the novel endoscopic mucosal dissection device.

In order to achieve the purpose, the invention adopts the technical scheme that:

a surgical instrument, a novel mucosa stripping device under endoscope.

The preferable technical scheme comprises a control system and a connecting system, wherein the control system is connected with the novel endoscopic mucosal dissection device through the connecting system; the control system is used for providing a high-frequency electric switching power supply and a traction source.

The invention has the advantages that:

1. the injection module of the novel endoscopic mucosa stripping device comprises a plurality of injectors, and can be used for injecting a target object in multiple directions at the same time without frequently searching and adjusting the injection position.

2. The cutting module of the novel endoscopic mucosa stripping device comprises a plurality of cutters, and the novel endoscopic mucosa stripping device can cut a target object from multiple directions simultaneously, so that the operation is more efficient.

3. The traction module of the novel endoscopic mucosa stripping device can be a negative pressure suction tube, and can adsorb and fix a target object so as to provide a sufficient operation visual field.

4. The novel mucosa stripping device under the endoscope can simplify ESD operation steps, realizes simple and convenient one-time excision and complete recovery of excision focus under the endoscope, and reduces pathological change residues.

Drawings

FIG. 1 is a perspective view of a novel endoscopic mucosal dissection device.

FIG. 2 is a schematic view showing the use state of the novel endoscopic mucosal dissection device.

FIG. 3 is a schematic view of another novel endoscopic mucosal dissection device of the present invention.

FIG. 4 is a schematic view of a surgical instrument according to the present invention.

Detailed Description

The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications can be made by those skilled in the art after reading the disclosure of the present invention, and equivalents fall within the scope of the appended claims.

The reference numerals and components referred to in the drawings are as follows:

1. main pipe body 2, injection module 3 and cutting module

4. Traction module 11, camera 12 and lighting device

Example 1

Referring to fig. 1, fig. 1 is a perspective view of a novel endoscopic mucosal dissection device according to the present invention. A novel mucosa stripping device under endoscope comprises a main pipe body 1, an injection module 2, a cutting module 3 and a traction module 4; the main pipe body 1 is of a tubular structure, a plurality of channels are arranged in the main pipe body and used for accommodating the injection module 2, the cutting module 3 and the traction module 4; the injection module 2 comprises a plurality of injectors, the injectors are tubular structures with injection needle tubes, and can inject liquid into a target object, namely an object to be cut, such as a mucous membrane and the like, in the embodiment, four groups of injectors are adopted, and as understood, different groups of injectors, such as 2 groups, 3 groups, 6 groups and the like, can be selected according to actual needs, and in some preferred embodiments, the injectors are detachably connected with the main tube body 1 through channels thereof and can be flexibly configured according to needs; the injector of the injection module 2 is movably connected with the main pipe body 1 and is uniformly arranged around the main pipe body 1 in the axial direction; the cutting module 3 comprises a plurality of cutters for cutting the target object, in this embodiment, the cutters are electrode guide wires, and are provided with 4 groups, are uniformly arranged around the main pipe body 1 in the axial direction and are arranged outside the injection module 2, and in some embodiments, the cutters can also be provided as 2 groups, 5 groups, 6 groups and the like; the cutter of the cutting module 3 is movably connected with the main pipe body 1, the cutter is an electrode catheter, the tail end of the cutter is an exposed electrode guide wire structure, power can be supplied by an external power supply, and a reticular structure is formed between the cutters; the traction module 4 is arranged at the center of the main pipe body 1, is movably connected with the main pipe body 1, is a negative pressure suction pipe, has a diameter larger than that of the pipe body at the tail end thereof in some embodiments, is in a bowl-shaped inverted buckle shape, and forms a negative pressure traction effect on a target object through an external negative pressure source.

Referring to fig. 2, fig. 2 is a schematic view showing a use state of a novel endoscopic mucosal dissection device according to the present invention. The use mode of the invention is as follows: the focus is found under the endoscope, and the novel mucosa stripping device under the endoscope is arranged in the endoscope channel to be positioned at the pathological change part; operating the injection module 2 to enable a plurality of injectors on the injection module to inject liquid under the mucous membrane to the pathological change position of the mucous membrane, adjusting the position of the traction module 4 to enable the pipe orifice of the negative pressure suction pipe to be aligned with the inflated mucous membrane, and carrying out adsorption traction on the mucous membrane, thereby facilitating the subsequent cutting operation; and operating the cutting module 3 to enable the cutter on the cutting module to be positioned at a position to be cut of the pulled target object, namely a mucosa bottom cutting position, simultaneously carrying out efficient cutting on the mucosa lesion marking position through an electrode guide wire on the cutter, and after the cutting is finished, completely recovering the separated mucosa lesion through a net bag formed by the cutting module 3.

It should be noted that: the novel endoscopic mucosa stripping device comprises a main pipe body 1, an injection module 2 and a traction module 4, wherein the tail end of the injection module 2 forms a net structure, so that a cut focus can be completely recovered in time after an operation; the injection module 2 comprises a plurality of injectors, and can inject a target object in multiple directions at the same time without frequently searching and adjusting an injection position; the cutting module 3 comprises a plurality of cutters for cutting the target object, and can cut from multiple directions at the same time, so that the operation is more efficient; the traction module 4 can fix a target object so as to fully provide an operation visual field and facilitate operation; the traction module 4 is positioned at the center of the main pipe body 1, so that subsequent operation is facilitated; the injection module 2 and the cutting module 3 are uniformly arranged around the main pipe body 1 in the axial direction, and the cutting module 3 is arranged outside the injection module 2, so that the injection module 2 can be prevented from interfering with the adjustment of the cutting module 3; the injection module 2 is provided with 4-6 groups of injectors, the cutting module 3 is provided with 4-6 groups of cutters, the tail ends of the cutters are provided with electrode guide wires, and the traction module 4 is a negative pressure suction tube movably connected, so that the operation flexibility is higher; the diameter of the port of the traction module 4 is larger than that of the pipe body, so that the adsorption and fixation of a target object are facilitated; the novel endoscopic mucous membrane stripping device overcomes the defects that ESD operation steps are complicated, the visual field is unclear due to bleeding and focus adhesion in the operation process, mucous membrane stripping is incomplete, pathological changes remain, focus removal is difficult to take out, and the like, meets the requirements of simply, quickly and completely removing the focus, greatly reduces operation time and reduces operation complications.

Example 2

Referring to fig. 3, fig. 3 is a schematic view of another novel endoscopic mucosal dissection device of the present invention. The present embodiment is substantially the same as embodiment 1, except that the main tube 1 further has a camera 11 and a lighting device 12 at its end, and the camera 11 and the lighting device 12 can have multiple sets, so as to provide a multi-angle view during the operation, thereby avoiding excessive adjustment of the main tube 1 and the suction fixing position.

Example 3

Referring to fig. 4, fig. 4 is a schematic view of a surgical instrument according to the present invention. A surgical instrument is characterized by comprising a novel endoscopic mucosa stripping device, a control system 5 and a connecting system 6, wherein the control system 5 is connected with the novel endoscopic mucosa stripping device through the connecting system 6; the control system 5 is used for providing a high-frequency electric switching power supply, a traction source, namely a negative pressure suction source and the like; the surgical instrument can provide stable working environment, energy source, operation foundation and stable control for the novel endoscopic mucosa stripping device.

The surgical instrument comprises a novel endoscopic mucous membrane stripping device, and can determine the boundary and range of mucous membrane stripping in the use process, push out an injector through a channel of a main pipe body 1, observe under an endoscope, adjust the position according to the size of a lesion and carry out multi-point submucosal injection, attract and fix the lesion mucous membrane by a negative pressure suction tube after the lesion of the mucous membrane is uplifted by injection, push out an annular electrode guide wire of a cutting module 3, and simultaneously carry out power-on cutting along the fixed range and close to the excision edge of the mucous membrane, so that the lesion of the mucous membrane is completely excised and stripped at one time, and then shrink the whole reticular tail end to recover the complete lesion; the operation steps of ESD are simplified, the excision and the complete recovery of the excision focus are simply and conveniently completed at one time under an endoscope, and the pathological change residue is reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and additions can be made without departing from the principle of the present invention, and these should also be considered as the protection scope of the present invention.