CN109771003B - Medical multifunctional tissue snare - Google Patents
Medical multifunctional tissue snare Download PDFInfo
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- CN109771003B CN109771003B CN201910204119.3A CN201910204119A CN109771003B CN 109771003 B CN109771003 B CN 109771003B CN 201910204119 A CN201910204119 A CN 201910204119A CN 109771003 B CN109771003 B CN 109771003B
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- 238000004904 shortening Methods 0.000 description 4
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Abstract
The invention belongs to the technical field of snares, and discloses a medical multifunctional tissue snares, which comprises an operation part, a connecting wire and a snares; the operation part is connected with the snare through a connecting wire; a hollow channel is arranged in the snare, and a hollow spike part for injecting liquid medicine is arranged on the hollow channel of the snare; the hollow spike is connected with the injection device through a hollow channel. The invention integrates the injection function and the function of the snare, thereby simplifying the operation and ensuring the operation safety, so that the snare of the invention greatly reduces the operation time and improves the operation efficiency. Therefore, the invention has the characteristics of simple operation and strong practicability.
Description
Technical Field
The invention belongs to the technical field of snares, and particularly relates to a medical multifunctional tissue snares.
Background
The snare, which is an instrument for ligating a blood vessel, polyp or other canal structure by tightening a sliding knot previously tied with an absorbable or synthetic thread with a nylon rod, is convenient to operate, and has been applied to various endoscopes (gastroenteroscopes) and abdominal operations under laparoscopes.
The snare has the advantages of safety, convenience and economy. (1) safety: the snare is made of absorbable wires, and has small reaction to human tissues after being placed in a body; the operation is reversible, and the ligation can be directly cut off when the ligation position is unsatisfactory; the cutting force to the tissue is smaller than that of the titanium clip, so that the situation that the tissue is cut off is difficult to occur; (2) convenience: compared with the suture ligature tissue under the laparoscope, the ligation operation by using the snare is simple and convenient, other special instruments are not needed, the operation time can be shortened, and especially, a beginner is easy to grasp and use; (3) economical: the snare is low-cost, and the application of the snare can correspondingly reduce the consumption of an expensive endoscopic cutting closer (Endo-GIA), so that the medical cost is reduced to a certain extent; (4) multipurpose: the snare is used in conjunction with an endoscope to resect polyps or other unwanted tissue within the alimentary canal using high frequency current.
The endoscopic polypectomy mainly comprises a transparent cap type mucotomy, an injection type segmented mucotomy and the like.
The transparent cap method mucotomy has the following advantages: the operation is simple and easy, and the success rate is high; the small flat lesions can be cut cleanly at one time; is especially suitable for small submucosal tumor; no special equipment is needed. The defects are as follows: the cutting depth is not easy to master; the muscular layer is easy to damage, and the bleeding and perforation risks are caused; is not suitable for larger lesions, and is suitable for lesions of stomach, rectum and other parts with thicker muscle layers.
The principle of injection mucoectomy (PMR) is as follows: injecting physiological saline and methylene blue into submucosa to swell the lesion substrate (change flat lesions into swelled lesions); the lesion is covered with a snare, tightened to become a pseudopedicle polyp, and then resected with a PSD (transforming the wide-base lesion to a pseudopedicle polyp). The advantages are that: the injury is small, and the preparation method is suitable for lesions of all parts of the colon; no damage to the muscle layer, if the operation is correct, the perforation danger can be avoided; the small flat lesions can be completely resected at one time; the bleeding rate is low, and the bleeding can be basically prevented by matching with titanium clip stitching; the cut specimen has small electric coagulation damage, and is convenient for pathological observation. The defects are as follows: the operation difficulty is high; special equipment (injection needle and snare with hook) is needed; is not suitable for larger lesions.
For larger flat lesions, large lateral developed tumors (LST) cannot be resected cleanly at one time by EMR, and injection-fragmented mucosal resection (EPMR) is the best approach, otherwise surgical intervention is required. However, EPMR is difficult to operate for very large lesions, requiring high skill from the operator.
Currently, endoscopic Mucoectomy (EMR) is a new treatment developed on the basis of polyp electrotomy and mucosal injection; the operation is that the pathological tissue is lifted by submucosally injecting epinephrine or normal saline to separate the mucous membrane layer from the muscular layer, and then the high-frequency electrotome is used for excision.
In practice, epinephrine or physiological saline needs to be injected under the mucous membrane to lift the pathological tissue, separate the mucous membrane layer from the muscular layer, and then the snare is used for electrifying and cutting, and the specific process is shown in fig. 5 (positioning, injection, wiring, cutting and collecting the focus in sequence). However, the current snare has no injection function, so that repeated operations are required, and the pathological tissue can be lifted by injecting epinephrine or physiological saline through other injection instruments to perform excision operation, which is time-consuming and labor-consuming. In addition, due to peristaltic characteristics of the gastrointestinal tract, particularly in special parts such as sigmoid colon, the endoscope is easy to slip off and lose target lesions, so that snare excision cannot be immediately implemented after the lesions are lifted by injection, and the difficulty and risk of operation are increased.
Disclosure of Invention
In order to solve the above problems of the prior art, the present invention is directed to a medical multifunctional tissue snare.
The technical scheme adopted by the invention is as follows:
a medical multifunctional tissue snare, which comprises an operation part, a connecting wire and a snare; the operation part is connected with the snare through a connecting wire; a hollow channel is arranged in the snare, and a hollow spike part for injecting liquid medicine is arranged on the hollow channel of the snare; the hollow spike part is connected with the injection device through a hollow channel;
the ring sleeve consists of an arc ring wire and an arc hollow ring wire; the connecting wires comprise arc-shaped coil wire connecting wires and arc-shaped hollow coil wire connecting wires; one end of the arc-shaped coil wire is connected with one end of the arc-shaped hollow coil wire, and the other end of the arc-shaped coil wire is connected with the operation part through an arc-shaped coil wire connecting wire; the other end of the arc-shaped hollow coil wire is connected with the operation part through an arc-shaped hollow coil wire connecting wire; the hollow channel of the arc-shaped hollow coil wire is connected with a hollow spike part, and the joint of the hollow spike part and the hollow channel is close to one end of the arc-shaped coil wire; the hollow spike part is provided with a liquid outlet hole; the arc-shaped hollow loop wire connecting wire is connected with the injection device;
the arc-shaped coil wire is a solid metal wire; the arc-shaped hollow ring wire is a hollow metal pipe; the front end of the arc-shaped coil wire is connected with the front end of the arc-shaped hollow coil wire; the rear end of the arc-shaped coil wire is connected with the operation part through an arc-shaped coil wire connecting wire; the rear end of the arc-shaped hollow coil wire is connected with the operation part through an arc-shaped hollow coil wire connecting wire; the hollow channel of the arc-shaped hollow coil wire is communicated with the hollow spike part.
Further, the length of the arc-shaped ring wire is equal to the length of the arc-shaped hollow ring wire.
Further, the blunt end of the hollow spike is connected with the side of the arc-shaped hollow loop wire.
Further, the tip of the hollow spike portion faces one end away from the operation portion.
Further, the injection device comprises an injection hose and a syringe; one end of the injection hose is connected with the arc-shaped hollow coil wire connecting wire; the other end of the injection hose is connected with the injector through an injection interface.
Further, the injection device further comprises a connecting hose; the outer sides of the arc-shaped hollow coil wire connecting wire, the arc-shaped coil wire and the connecting hose are coated with a tube shell, and one end of the injection hose penetrates through the tube shell and then is connected with the arc-shaped hollow coil wire connecting wire through the connecting hose.
Further, a first blocking part is arranged at one end of the arc-shaped hollow ring wire; one end of the arc-shaped hollow loop wire is connected with the arc-shaped loop wire through a first blocking part; the arc-shaped hollow coil wire is internally provided with a second blocking part, and the hollow coil wire connecting the hose and the hollow coil wire connecting wire is connected with a part between the second blocking part.
The beneficial effects of the invention are as follows: the medical multifunctional tissue snare of the invention greatly facilitates the operation of polypectomy by integrating the existing injection function and the function of the snare, and simultaneously simplifies the operation, thereby greatly reducing the operation time and improving the operation efficiency. Therefore, the invention has the characteristics of simple operation and strong practicability; the invention can completely cut off pathological tissues and reduce bleeding and perforation complications; in addition, the invention can obtain the complete specimen for pathological examination for diagnosis, and expand the traditional indication of endoscopic lesion excision. The hollow spike part is arranged on the snare, so that the volume of the whole instrument is greatly reduced; the angle between the hollow spike part and the snare is set, so that the snare can smoothly inject liquid medicine into the focus part by controlling the angle between the spike part and the focus part when in use, thereby achieving better effect of lifting pathological tissues and separating a mucous membrane layer from a muscle layer, improving the success rate of operation and reducing complications such as bleeding, perforation and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partial enlarged view of a in fig. 1.
Fig. 3 is a partial enlarged view of B in fig. 1.
Fig. 4 is a partial enlarged view of C in fig. 1.
Fig. 5 is a prior art operational process diagram.
In the figure: 1-snare; 2-an operation part; 3-connecting lines; 4-an injection hose; 5-an injection port; 6-a syringe; 7-a liquid outlet hole; 8-a hollow spike; 9-a first blocking part; 10-arc loop wire; 11-an arc-shaped hollow loop wire; 12-connecting a hose; 13-a second blocking portion.
Detailed Description
The invention is further illustrated by the following description of specific embodiments in conjunction with the accompanying drawings.
Example 1
As shown in fig. 1-4, a medical multi-functional tissue snare includes an operation portion, a connection wire, and a snare; the operation part is connected with the snare through a connecting wire; a hollow channel is arranged in the snare, and a hollow spike part for injecting liquid medicine is arranged on the hollow channel of the snare; the hollow spike is connected with the injection device through a hollow channel.
As shown in fig. 1 to 4, a medical multi-functional tissue snare includes an operation portion 2, a connection wire 3, and a snare 1. The operation part 2 is connected with the snare 1 through a connecting wire 3. The above is prior art. The present invention improves upon existing snares.
The medical multifunctional tissue snare comprises an operation part 2, a connecting wire 3 and a snare 1. The inside of the snare is provided with a hollow channel for injecting liquid medicine, a hollow spike part 8 is arranged on the part corresponding to the hollow channel of the snare, and the hollow spike part is connected with an injection device through the hollow channel.
When in use, the injection device is used for injecting liquid medicine to the focus part through the hollow channel by adopting the hollow spike part so as to lift the focus part, then the excision operation is carried out to finish excision of the focus, and the focus is taken out. Thus, the mode simplifies the excision operation process of polyps or tumors; the operation process is safer and the efficiency is higher.
Example 2
As shown in fig. 1-4, a medical multi-functional tissue snare includes an operation portion, a connection wire, and a snare; the operation part is connected with the snare through a connecting wire; a hollow channel is arranged in the snare, and a hollow spike part for injecting liquid medicine is arranged on the hollow channel of the snare; the hollow spike is connected with the injection device through a hollow channel.
As shown in fig. 1 to 4, a medical multi-functional tissue snare includes an operation portion 2, a connection wire 3, and a snare 1. The operation part 2 is connected with the snare 1 through a connecting wire 3. The above is prior art. The present invention improves upon existing snares.
The medical multifunctional tissue snare comprises an operation part 2, a connecting wire 3 and a snare 1. The inside of the snare is provided with a hollow channel for injecting liquid medicine, a hollow spike part 8 is arranged on the part corresponding to the hollow channel of the snare, and the hollow spike part is connected with an injection device through the hollow channel.
When in use, the injection device is used for injecting liquid medicine to the focus part through the hollow channel by adopting the hollow spike part so as to lift the focus part, then the excision operation is carried out to finish excision of the focus, and the focus is taken out. Thus, the mode simplifies the excision operation process of polyps or tumors; the operation process is safer and the efficiency is higher.
Further, the snare consists of an arc-shaped loop wire and an arc-shaped hollow loop wire; the connecting wires comprise arc-shaped coil wire connecting wires and arc-shaped hollow coil wire connecting wires; one end of the arc-shaped coil wire is connected with one end of the arc-shaped hollow coil wire, and the other end of the arc-shaped coil wire is connected with the operation part through an arc-shaped coil wire connecting wire; the other end of the arc-shaped hollow coil wire is connected with the operation part through an arc-shaped hollow coil wire connecting wire; the hollow channel of the arc-shaped hollow coil wire is connected with a hollow spike part, and the joint of the hollow spike part and the hollow channel is close to one end of the arc-shaped coil wire; the hollow spike part is provided with a liquid outlet hole 7; the arc-shaped hollow loop wire connecting wire is connected with the injection device.
In order to simplify the whole structure of the invention, the invention is more convenient to use. The snare 1 of the invention adopts a snare consisting of an arc-shaped loop wire 10 and an arc-shaped hollow loop wire 11; preferably, the arcuate loop wire is a solid metal wire; the arc-shaped hollow ring wire is a hollow metal pipe; the front end of the arc-shaped coil wire is connected with the front end of the arc-shaped hollow coil wire; the rear end of the arc-shaped coil wire is connected with the operation part through an arc-shaped coil wire connecting wire; the rear end of the arc-shaped hollow coil wire is connected with the operation part through an arc-shaped hollow coil wire connecting wire; the hollow channel of the arc-shaped hollow coil wire is communicated with the hollow spike part; thus, when in use, the injection operation can be carried out without filling the whole snare. Namely, only the injection device is used for injecting the liquid medicine to the arc-shaped hollow loop wire connecting wire, then the hollow channel is filled with the liquid medicine in the arc-shaped hollow loop wire, and the hollow spike part is used for penetrating the focus part to lift the lesion tissue of the focus part.
Further, the length of the arc-shaped ring wire is equal to the length of the arc-shaped hollow ring wire.
In order to facilitate injection of the spike part and storage of the tip after use, the length of the arc-shaped coil wire is equal to that of the arc-shaped hollow coil wire, and the spike part is arranged at the joint of the arc-shaped coil wire and the arc-shaped hollow coil wire so that the spike part is positioned at the middle part of the front end of the snare; in order to facilitate a faster injection, the length of the injected medical fluid is shortened, and the length of the arc-shaped hollow loop wire is as small as possible, while at the same time not affecting the normal use of the snare. Thereby shortening the injection time of the liquid medicine and shortening the injection time of the liquid medicine.
Further, the blunt end of the hollow spike is connected with the side of the arc-shaped hollow loop wire.
For convenient operation, the blunt end of the hollow spike is connected with the side part of the arc-shaped hollow loop wire; preferably, the hollow spike is horizontally arranged at the side part of the arc-shaped hollow coil wire; when in injection, the hollow spike part is inserted into the focus position after being rotated to a proper position, thereby realizing the injection of the liquid medicine and lifting the focus position.
Further, the tip of the hollow spike portion faces one end away from the operation portion.
Further, for convenient operation, the tip end of the hollow spike part is connected towards one end far away from the operation part, so that the hollow spike part can be penetrated into a focus part in an inclined mode for injection during injection, and the arrangement ensures that the hollow spike part can be penetrated into the focus part more simply and quickly; thereby facilitating the injection of the liquid medicine.
Further, the injection device comprises an injection hose and a syringe; one end of the injection hose is connected with the arc-shaped hollow coil wire connecting wire; the other end of the injection hose is connected with the injector through an injection interface.
Preferably, the injection device comprises an injection hose and a syringe; the lower end of the injection hose is communicated with the arc-shaped hollow coil connecting wire, and the upper end of the injection hose is connected with the injector 6 through the injection interface 5.
Example 3
As shown in fig. 1-4, a medical multi-functional tissue snare includes an operation portion, a connection wire, and a snare; the operation part is connected with the snare through a connecting wire; a hollow channel is arranged in the snare, and a hollow spike part for injecting liquid medicine is arranged on the hollow channel of the snare; the hollow spike is connected with the injection device through a hollow channel.
As shown in fig. 1 to 4, a medical multi-functional tissue snare includes an operation portion 2, a connection wire 3, and a snare 1. The operation part 2 is connected with the snare 1 through a connecting wire 3. The above is prior art. The present invention improves upon existing snares.
The medical multifunctional tissue snare comprises an operation part 2, a connecting wire 3 and a snare 1. The inside of the snare is provided with a hollow channel for injecting liquid medicine, a hollow spike part 8 is arranged on the part corresponding to the hollow channel of the snare, and the hollow spike part is connected with an injection device through the hollow channel.
When in use, the injection device is used for injecting liquid medicine to the focus part through the hollow channel by adopting the hollow spike part so as to lift the focus part, then the excision operation is carried out to finish excision of the focus, and the focus is taken out. Thus, the mode simplifies the excision operation process of polyps or tumors; the operation process is safer and the efficiency is higher.
Further, the snare consists of an arc-shaped loop wire and an arc-shaped hollow loop wire; the connecting wires comprise arc-shaped coil wire connecting wires and arc-shaped hollow coil wire connecting wires; one end of the arc-shaped coil wire is connected with one end of the arc-shaped hollow coil wire, and the other end of the arc-shaped coil wire is connected with the operation part through an arc-shaped coil wire connecting wire; the other end of the arc-shaped hollow coil wire is connected with the operation part through an arc-shaped hollow coil wire connecting wire; the hollow channel of the arc-shaped hollow coil wire is connected with a hollow spike part, and the joint of the hollow spike part and the hollow channel is close to one end of the arc-shaped coil wire; the hollow spike part is provided with a liquid outlet hole 7; the arc-shaped hollow loop wire connecting wire is connected with the injection device.
In order to simplify the whole structure of the invention, the invention is more convenient to use. The snare 1 of the invention adopts a snare consisting of an arc-shaped loop wire 10 and an arc-shaped hollow loop wire 11; preferably, the arcuate loop wire is a solid metal wire; the arc-shaped hollow ring wire is a hollow metal pipe; the front end of the arc-shaped coil wire is connected with the front end of the arc-shaped hollow coil wire; the rear end of the arc-shaped coil wire is connected with the operation part through an arc-shaped coil wire connecting wire; the rear end of the arc-shaped hollow coil wire is connected with the operation part through an arc-shaped hollow coil wire connecting wire; the hollow channel of the arc-shaped hollow coil wire is communicated with the hollow spike part; thus, when in use, the injection operation can be carried out without filling the whole snare. Namely, only the injection device is used for injecting the liquid medicine to the arc-shaped hollow loop wire connecting wire, then the hollow channel is filled with the liquid medicine in the arc-shaped hollow loop wire, and the hollow spike part is used for penetrating the focus part to lift the lesion tissue of the focus part.
Further, the length of the arc-shaped ring wire is equal to the length of the arc-shaped hollow ring wire.
In order to facilitate a faster injection, the length of the injected medical fluid is shortened, and the length of the arc-shaped hollow loop wire is as small as possible, while at the same time not affecting the normal use of the snare. Thereby shortening the injection time of the liquid medicine and shortening the injection time of the liquid medicine.
Further, the blunt end of the hollow spike is connected with the side of the arc-shaped hollow loop wire.
For convenient operation, the blunt end of the hollow spike is connected with the side part of the arc-shaped hollow loop wire; preferably, the hollow spike is horizontally arranged at the side part of the arc-shaped hollow coil wire; when in injection, the hollow spike part is inserted into the focus position after being rotated to a proper position, thereby realizing the injection of the liquid medicine and lifting the focus position.
Further, the tip of the hollow spike portion faces one end away from the operation portion.
Further, for convenient operation, the tip end of the hollow spike part faces to one end far away from the operation part, so that the hollow spike part can be penetrated into a focus part in an inclined mode for injection during injection, and the arrangement ensures that the hollow spike part can be penetrated into the focus part more simply and quickly; thereby facilitating the injection of the liquid medicine.
Further, the injection device comprises an injection hose and a syringe; one end of the injection hose is connected with the arc-shaped hollow coil wire connecting wire; the other end of the injection hose is connected with the injector through an injection interface.
Preferably, the injection device comprises an injection hose and a syringe; the lower end of the injection hose is communicated with the arc-shaped hollow coil connecting wire, and the upper end of the injection hose is connected with the injector 6 through the injection interface 5.
Further, the injection device further comprises a connecting hose; the outer sides of the arc-shaped hollow coil wire connecting wire, the arc-shaped coil wire and the connecting hose are coated with a tube shell, and one end of the injection hose penetrates through the tube shell and then is connected with the arc-shaped hollow coil wire connecting wire through the connecting hose.
In order to save space, the whole volume is smaller; the injection device further comprises a connection hose; coating the connecting hose, the arc-shaped hollow coil wire connecting wire and the arc-shaped coil wire by using a tube shell; the lower end of the injection hose 4 passes through the tube shell and is connected with the rear end of the connecting hose 12; the front end of the connecting hose is connected with the arc hollow coil connecting wire.
Further, a first blocking part is arranged at one end of the arc-shaped hollow ring wire; one end of the arc-shaped hollow loop wire is connected with the arc-shaped loop wire through a first blocking part; the arc-shaped hollow coil wire is internally provided with a second blocking part, and the hollow coil wire connecting the hose and the hollow coil wire connecting wire is connected with a part between the second blocking part.
In order to further shorten the flow path of the liquid medicine, the left end of the arc-shaped hollow ring line is provided with a first blocking part, the first blocking part 9 is arranged on the arc-shaped hollow arc-shaped ring line at the front end of the hollow spike part, and the flow distance of the liquid medicine in the arc-shaped hollow arc-shaped ring line is shortened; the arc-shaped hollow coil wire is internally provided with a second blocking part, and the second blocking part 13 is arranged at the rear side of the joint of the connecting hose and the hollow coil wire connecting wire, so that the flowing distance of the liquid medicine in the hollow coil wire connecting wire is shortened. Therefore, the flowing distance of the whole liquid medicine is smaller, the liquid medicine required during injection is smaller, the injection time is shorter, and the injection efficiency is improved.
The invention is not limited to the alternative embodiments described above, but any person may derive other various forms of products in the light of the present invention. The above detailed description should not be construed as limiting the scope of the invention, which is defined in the claims and the description may be used to interpret the claims.
Claims (5)
1. A medical multifunctional tissue snare, which comprises an operation part, a connecting wire and a snare; the operation part is connected with the snare through a connecting wire; the method is characterized in that: a hollow channel is arranged in the snare, and a hollow spike part for injecting liquid medicine is arranged on the hollow channel of the snare; the hollow spike part is connected with the injection device through a hollow channel;
the ring sleeve consists of an arc ring wire and an arc hollow ring wire; the connecting wires comprise arc-shaped coil wire connecting wires and arc-shaped hollow coil wire connecting wires; one end of the arc-shaped coil wire is connected with one end of the arc-shaped hollow coil wire, and the other end of the arc-shaped coil wire is connected with the operation part through an arc-shaped coil wire connecting wire; the other end of the arc-shaped hollow coil wire is connected with the operation part through an arc-shaped hollow coil wire connecting wire; the hollow channel of the arc-shaped hollow coil wire is connected with a hollow spike part, and the joint of the hollow spike part and the hollow channel is close to one end of the arc-shaped coil wire; the hollow spike part is provided with a liquid outlet hole; the arc-shaped hollow loop wire connecting wire is connected with the injection device;
the arc-shaped coil wire is a solid metal wire; the arc-shaped hollow ring wire is a hollow metal pipe; the front end of the arc-shaped coil wire is connected with the front end of the arc-shaped hollow coil wire; the rear end of the arc-shaped coil wire is connected with the operation part through an arc-shaped coil wire connecting wire; the rear end of the arc-shaped hollow coil wire is connected with the operation part through an arc-shaped hollow coil wire connecting wire; the hollow channel of the arc-shaped hollow coil wire is communicated with the hollow spike part;
the blunt end of the hollow spike part is connected with the side part of the arc-shaped hollow loop wire;
the tip of the hollow spike part faces to one end far away from the operation part.
2. A medical multi-functional tissue snare according to claim 1, wherein: the length of the arc-shaped ring wire is equal to that of the arc-shaped hollow ring wire.
3. A medical multi-functional tissue snare according to claim 2, wherein: the injection device comprises an injection hose and a syringe; one end of the injection hose is connected with the arc-shaped hollow coil wire connecting wire; the other end of the injection hose is connected with the injector through an injection interface.
4. A medical multi-functional tissue snare according to claim 3, wherein: the injection device further comprises a connection hose; the outer sides of the arc-shaped hollow coil wire connecting wire, the arc-shaped coil wire and the connecting hose are coated with a tube shell, and one end of the injection hose penetrates through the tube shell and then is connected with the arc-shaped hollow coil wire connecting wire through the connecting hose.
5. A medical multi-functional tissue snare according to claim 4, wherein: a first blocking part is arranged at one end of the arc-shaped hollow ring wire; one end of the arc-shaped hollow loop wire is connected with the arc-shaped loop wire through a first blocking part; the arc-shaped hollow coil wire is internally provided with a second blocking part, and the hollow coil wire connecting the hose and the hollow coil wire connecting wire is connected with a part between the second blocking part.
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| CN201910204119.3A CN109771003B (en) | 2019-03-18 | 2019-03-18 | Medical multifunctional tissue snare |
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| CN201910204119.3A CN109771003B (en) | 2019-03-18 | 2019-03-18 | Medical multifunctional tissue snare |
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| CN109771003A CN109771003A (en) | 2019-05-21 |
| CN109771003B true CN109771003B (en) | 2024-02-06 |
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| CN111588444A (en) * | 2020-06-01 | 2020-08-28 | 江西樟乡天然冰片股份有限公司 | Hemorrhoid ointment prepared from natural borneol hydrolat and preparation method thereof |
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| CN109771003A (en) | 2019-05-21 |
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