CN112022288A

CN112022288A - Cutting scissors device for saphenous vein collateral branches and using method

Info

Publication number: CN112022288A
Application number: CN202011073043.4A
Authority: CN
Inventors: 厉蕙蕙; 陈雪生; 郑腾
Original assignee: Beijing Meadows Medical Equipment Co Ltd
Current assignee: Beijing Meadows Medical Equipment Co Ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2020-12-04

Abstract

A saphenous vein collateral cutting scissors device and a using method thereof belong to the technical field of cardiothoracic surgery medical treatment. The structure of scissors end is: the upper crescent shear blade and the lower crescent shear blade are fixed on the connecting shaft by the rivet, the upper crescent shear blade is distributed with teeth, and the middle of the lower crescent shear blade is provided with a built-in slot; the shear blades are sharp sawteeth and are pressed up and down, and the upper crescent shear blade and the lower crescent shear blade are bent; the structure of the scissor handle is designed based on human engineering, so that the surgical obstacles can be reduced, the operation is simple and convenient, and the operation is easy to master; the invention has the advantages of improving the perfectness of the bridge vessel, avoiding the occult injury to the bridge vessel when the collateral vessel is stopped and cut off by adopting a high-temperature electrocoagulation method, completely blocking the collateral of the great saphenous vein vessel by the physical clamping of the degradable titanium clamp and physically pressing, shearing, separating and ligating the end of the scissors, improving the success rate of the bridging operation, reducing the probability of re-blocking the bridge vessel and prolonging the survival time of patients.

Description

Cutting scissors device for saphenous vein collateral branches and using method

Technical Field

The invention relates to a saphenous vein lateral branch cutting scissors device and a using method thereof, and belongs to the technical field of medical equipment.

Background

In bypass surgery, a bypass vessel (target vessel) must be harvested from the patient, and the greater saphenous vein or radial artery is now commonly selected. In the traditional operation, the skin and muscle tissues are completely stripped, and the target blood vessel is separated from the collateral blood vessel under direct vision. The surgery typically involves making an incision in the leg or arm of the patient that corresponds to the length of the target vessel, typically 20-25 cm. The pain of the patient is great during the operation, the recovery time after the operation is long, the infection chance is great, the pain is strong and the duration is long, and the scar is obvious.

The minimally invasive endoscope blood vessel collection system can help doctors to carry out minimally invasive surgery on legs or arms, and the doctors can easily take out a target blood vessel by only cutting 1 to 2 small incisions of 1-2cm on the legs or forearms of patients. The method has the advantages of small wound to patients during operation, reduced infection and complication probability, reduced pain, shortened recovery time after operation, and good appearance.

Since the appearance of the endoscopic blood vessel collection system in 1997, over 100 million patients in the world have been subjected to the operation of the technology, and in China, tens of thousands of patients have been subjected to the operation, and the long-term patency rate of the system is no different from that of the traditional denudation operation after 5 years of clinical follow-up. The international association for minimally invasive cardiothoracic surgery recommends endoscopic vessel harvesting as the standard procedure for cardiac bypass surgery. The annual usage rate in the United states is more than 70%, but the domestic usage rate is less than 5%. Only products of imported companies and products of my companies are sold in the market at home.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a saphenous vein lateral branch cutting scissors device and a using method thereof.

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

a scissors device for cutting the lateral branches of great saphenous vein is disclosed, the structure of the scissors is as follows: the scissors consists of a scissors end, a black cavity tube and a scissors handle: the structure of scissors end is: the upper crescent shear blade and the lower crescent shear blade are fixed on the connecting shaft by the rivet, the upper crescent shear blade is distributed with teeth, and the middle of the lower crescent shear blade is provided with a built-in slot; the scissors blades are sharp sawteeth and are pressed up and down, the upper crescent scissors blade and the lower crescent scissors blade are in a bent shape, and the scissors handle drives the transmission steel wire through the fixing clip; the structure of the black cavity tube is as follows: two transmission steel wires are arranged in the scissors, the scissors are connected with the scissors handle and the scissors end, and the scissors blades are pressed to separate blood vessels by opening and closing the handles; the structure of the scissors handle is as follows: the scissors are composed of a fixed handle and a movable handle, the movable handle is connected with a transmission steel wire through an internal connecting shaft, and the closing of the ends of the scissors is controlled through the opening and closing of the handles.

A using method of a saphenous vein collateral cutting scissors device comprises the following steps;

the degradable titanium clip is repeatedly picked up by the end of the scissors for a plurality of times to clip the vessel lateral branch for ligating the vessel, and after the ligation is finished, the vessel lateral branch is clipped and separated by physical pressing.

The invention has the advantages that: the high-temperature electric coagulation surgical knife can help doctors to avoid generating recessive injury to the bridge vessel when side branch vessels are stopped and disconnected by a high-temperature electric coagulation method when minimally invasive blood vessel taking operations are performed on legs or arms, and can completely block the side branches of the great saphenous vein vessel and the physical pressing and shearing separation of the ends of the scissors through the physical clamp of the degradable titanium clamp, so that the success rate of the bridging operations can be improved, the probability of re-blocking of the bridge vessel is reduced, and the survival time of patients is prolonged.

Go up crescent scissors piece, have built-in slot in the middle of the crescent scissors piece down, can be used to the titanium clamp that the repeated clamp got degradable material, utilize the titanium clamp to come the clamping vessel side branch, carry out the blood vessel ligature, prevent to bleed, the scissors piece is sharp sawtooth, upper and lower pressfitting, can separate the shearing to the blood vessel side branch after the ligature. This greatly widens the scope of applicability of the present invention.

In addition, the cutting scissors device for the lateral branches of the great saphenous vein is completely separated from the common electrocoagulation scissors (also called bipolar scissors) in the using process, is not required to be connected with an electrocoagulation generator for use, is only sealed by physical ligation and is used by physical shearing. Therefore, the safety of collecting the blood vessel under the endoscope is ensured to be smoothly carried out by a doctor, and the target blood vessel is prevented from being influenced by high temperature.

Drawings

A more complete appreciation of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein the accompanying drawings are included to provide a further understanding of the invention and form a part of this specification, and wherein the illustrated embodiments of the invention and the description thereof are intended to illustrate and not limit the invention, as illustrated in the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the whole saphenous vein side branch cutting scissors device of the invention.

Fig. 2 is a schematic view of the structure of the shear blade of the present invention.

Fig. 3 is a schematic structural view of a scissor blade built-in slot of the present invention.

The invention is further illustrated with reference to the following figures and examples.

Detailed Description

It will be apparent that those skilled in the art can make many modifications and variations based on the spirit of the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

For the convenience of understanding the embodiments of the present invention, the following description will be further explained by taking several specific embodiments as examples in conjunction with the drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.

Example 1: as shown in fig. 1, 2 and 3, the scissors device for cutting the lateral branches of the great saphenous vein comprises the following scissors structures: consists of a scissor head 2, a scissor handle 3, a black cavity tube 1 and the like.

The structure of the scissors end 2 is as follows: the upper crescent shear blade and the lower crescent shear blade are fixed on the connecting shaft by the rivet, and the connecting shaft is made of ceramic; the upper crescent shear blade is distributed with teeth, a built-in slot 4 is arranged in the middle of the lower crescent shear blade, the built-in slot 4 is used for clamping a titanium clamp made of degradable materials, and the titanium clamp is used for clamping a blood vessel; the scissors piece is sharp sawtooth, upper and lower pressfitting, goes up crescent scissors piece and crescent scissors piece down and is the bending shape, can decide great saphenous vein collateral branch to on being connected to other end scissors handle through the transmission steel wire, the scissors handle passes through the fixing clip and drives the transmission steel wire, and the operator is manual to open and shut the handle and can make the scissors piece press from both sides tightly, separates the blood vessel.

The structure of the black cavity tube 1 is: two transmission steel wires are arranged in the scissors, the scissors handle and the scissors end are connected, and the scissors blades are pressed and separated from the blood vessel through opening and closing of the handles.

The structure of the scissors handle 3 is: the scissors are composed of a fixed handle and a movable handle, the movable handle is connected with a transmission steel wire through an internal connecting shaft, and the closing of the ends of the scissors is controlled through the opening and closing of the handles.

The invention is used together with an endoscope blood vessel collecting system, and scissors are respectively used for ligating the lateral branch of the great saphenous vein in a physical mode and separating the lateral branch of the blood vessel in a physical mode.

1. The effective length of the crescent shear blade 2 at the end of the scissors is 20mm, the effective thickness of the crescent shear blade 2 is 1.5mm, and the diameter of the opening at the tip of the scissors is 5 mm.

2. The effective length of the black cavity pipe 1 is 55cm, the effective inner diameter phi is 4.8mm, the front end of the black cavity pipe 1 is connected with the end thread of the crescent shear blade 2, a transmission steel wire is arranged in the black cavity pipe 1, and the transmission steel wire is connected with the crescent shear blade 2.

3. The movable handles of the scissors handles are opened and closed, and the transmission steel wire drives the pressing of the ends of the scissors to perform the ligation of the side branches of the blood vessels.

Embodiment 2, as shown in fig. 1, 2 and 3, a scissors device for cutting saphenous vein sidebranch is provided, and the basic operation process of this embodiment will be briefly described below.

The endoscope is inserted into the free sleeve and the free head is installed.

Sleeving a short-mouth sleeve needle on a sleeve, inserting a free head into an operation position through the short-mouth sleeve needle, and then propelling a target to free; the scissors are inserted into the scissors through hole, and the collecting cannula is inserted into the operation position through the short-mouth cannula needle.

If the lens is obscured by blood or fat, the cleaning solution injection port is connected to a syringe of 5cc saline, and the syringe is pushed to spray saline from the lens washing hole of the c-shaped ring to clean the lens.

The scissors are pushed to the target part, the degradable titanium clips are repeatedly picked up by the ends of the scissors for a plurality of times to clamp the vessel side branches to ligate the vessel, and the vessel side branches are clamped and cut after the ligation is finished.

After the operation is finished, the collecting sleeve and the scissors are taken out.

As described above, although the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that many modifications are possible without substantially departing from the spirit and scope of the present invention. Therefore, such modifications are also all included in the scope of protection of the present invention.

Claims

1. The utility model provides a great saphenous vein blood vessel collateral branch cuts scissors device which characterized in that comprises scissors end, black chamber pipe and scissors handle:

the structure of scissors end is: the upper crescent shear blade and the lower crescent shear blade are fixed on the connecting shaft by the rivet, the upper crescent shear blade is distributed with teeth, and the middle of the lower crescent shear blade is provided with a built-in slot; the scissors blades are sharp sawteeth and are pressed up and down, the upper crescent scissors blade and the lower crescent scissors blade are in a bent shape, and the scissors handle drives the transmission steel wire through the fixing clip;

the structure of the black cavity tube is as follows: two transmission steel wires are arranged in the scissors, the scissors are connected with the scissors handle and the scissors end, and the scissors blades are pressed to separate blood vessels by opening and closing the handles;

the structure of the scissors handle is as follows: the scissors are composed of a fixed handle and a movable handle, the movable handle is connected with a transmission steel wire through an internal connecting shaft, and the closing of the ends of the scissors is controlled through the opening and closing of the handles.

2. The lateral branch cutting scissors device for the great saphenous vein according to claim 1, wherein the scissors end is characterized in that the effective length of the crescent-shaped scissors blade is 20mm, the effective thickness of the crescent-shaped scissors blade is 1.5mm, and the diameter of the opening at the scissors tip is 5 mm.

3. The saphenous vein sidebranch cutting scissors device according to claim 1, wherein the black cavity tube has an effective length of 55cm and an effective inner diameter of 4.8mm, the front end of the black cavity tube is connected with the screw teeth at the end of the scissors, and a transmission steel wire is arranged inside the black cavity tube.

4. The saphenous vein sidebranch cutting scissors device according to claim 1, wherein the scissors handle is characterized in that the movable handle is opened and closed, and the driving steel wire drives the ends of the scissors to be pressed together to perform sidebranch ligation on the vein.

5. A using method of a saphenous vein collateral cutting scissors device is characterized by comprising the following steps;

firstly, inserting an endoscope into a free sleeve, and installing a free head;

sleeving a short-mouth sleeve needle on a sleeve, inserting a free head into an operation position through the short-mouth sleeve needle, and then propelling a target to free; inserting the scissors into the scissors through hole, and inserting the collecting cannula into the operation position through the short-mouth cannula needle;

if the lens is obscured by blood or fat, the cleaning solution injection port is connected with a syringe of 5cc physiological saline, and the syringe is pushed to spray physiological saline from the lens washing hole of the c-shaped ring to clean the lens;

pushing scissors to the target part, repeatedly picking up the degradable titanium clip to clamp the vessel side branch for many times through the end of the scissors to ligate the vessel, and then clamping off the vessel side branch after ligation is completed;