CN211022970U

CN211022970U - Stereoscopic trimming microsciscope

Info

Publication number: CN211022970U
Application number: CN201921767167.5U
Authority: CN
Inventors: 刘源; 佟志勇; 刘琰; 吴安华
Original assignee: First Hospital of China Medical University
Current assignee: First Hospital of China Medical University
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-17
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a micro-scissors is pruned to solid in medical apparatus field, this kind of micro-scissors include the short pincers of high pincers and articulated high pincers head end, be equipped with the clamp plate between high pincers and the short pincers, the cross section of clamp plate is "" font, and the clamp plate is including pressing splenium, extrusion portion and connecting the vertical connecting portion of pressing splenium and extrusion portion, and the short pincers of contact in the extrusion portion rotation stroke, and the closed department of short pincers and high pincers has all processed the blade. Compared with plane microscissors in the prior art, the technical scheme has the advantages that the three-dimensional design structure is adopted, so that the precision of trimming the vascular anastomotic stoma is improved when medical personnel perform microscopic anastomosis at the end of a blood vessel, and the efficiency and quality of the operation are improved.

Description

Stereoscopic trimming microsciscope

Technical Field

The utility model belongs to the field of medical equipment, specifically be three-dimensional pruning microsciscope.

Background

The end-to-end anastomosis of blood vessels is a highly difficult operation widely applied to the aspects of surgery for treating blood vessel injury, organ ischemia and the like. It is applied in many high-end operation fields of surgical treatment, such as coronary artery bridging operation of heart surgery, intracranial vascular bridging operation of neurosurgery, amputation replantation operation of bone surgery, organ revascularization operation of transplantation surgery, etc. The most critical first step in the surgical procedure is the treatment of the severed end of the blood vessel to be anastomosed, two of which are the most important: firstly, cutting off the adventitia at the broken end of the anastomotic stoma, thereby reducing the formation of thrombus in the blood vessel caused by the involvement of the adventitia in the blood vessel lumen in the process of suturing the blood vessel; and secondly, accurately trimming the shape of the broken end of the artery of the anastomotic stoma, realizing the matching of the anastomotic length of the near-distal vascular wall of the anastomotic stoma, meeting the requirement of blood supply and reducing the leakage of the anastomotic stoma.

In order to realize the above technical modes, the handles of the scissors in the prior art are mostly cylindrical, and some scissors are plate-shaped and provided with spring leaves, so that the scissors can rotate and trim in all directions conveniently. The microscissors have different types, and the head parts of the microscissors are provided with an elbow, a straight head, a pointed head or a flat head. The curved scissors facilitate the separation of tissue and free blood vessels, are slightly rounded at their tips, and can safely separate perivascular tissue without damaging the vessel wall during use. In order to facilitate deep tissue cutting and fine trimming, the scissors with cylindrical handles can be selected.

However, the scissors are in the shape of plane scissors, and basically meet the requirements of operations, but in actual use, the blood vessel walls of patients are usually tightly attached to each other, and the tightly attached blood vessels bring great troubles to the operation of cutting the adventitia and the shape of an anastomotic stoma. When the common plane scissors cut off the adventitia of the blood vessel, the blood vessel wall is very easy to be damaged, and the anastomosis point needs to be selected again, so that the length of the blood vessel is lost, and even the operation cannot be completed; meanwhile, when the shape of the anastomotic stoma is trimmed, the shape of the broken end of the blood vessel cannot be formed at one time, and the trimmed broken end of the anastomotic stoma protrudes or is lost, so that a continuous arc line convenient for suturing is extremely difficult to form, and the subsequent operation of the microscopic blood vessel suturing is difficult, even the blood vessel leaks. The above disadvantages of the conventional common plane scissors cannot be completely overcome even if high-level experts with many years of surgical experience exist; and once the above adverse consequences occur, unnecessary harm may be brought to the patient.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides a pair of stereoscopic microscissors for shaping the shape of the severed end of a blood vessel at one time when the shape of the anastomotic stoma is repaired.

In order to achieve the above purpose, the technical solution of the present invention is as follows: microsciscope is pruned to solid, including the short pincers of high pincers and articulated high pincers head end, be equipped with the clamp plate between high pincers and the short pincers, the cross section of clamp plate is "" font, and the clamp plate is including pressing splenium, extrusion portion and connecting the vertical connecting portion of pressing splenium and extrusion portion, and the short pincers of contact in the extrusion portion rotation stroke, and the closed department of short pincers and high pincers all processes there is the blade.

After the scheme is adopted, the following beneficial effects are realized: 1. for the microscopic scissors in plane among the prior art, adopt the spatial design structure among this technical scheme, when the medical personnel of being convenient for use, with anastomotic stoma artery adventitia and vascular wall, once only take off set formula and cut off. Avoiding the damage to the vessel wall caused by repeatedly trimming the redundant adventitia; and can completely remove the residual adventitia at the anastomotic site, thereby reducing the risk of thrombus formation caused by mistakenly being involved in the blood vessel lumen during the blood vessel suture.

2. Compared with the prior art adopting plane scissors, when cutting, an operator needs to align the cut blood vessel by using the port and simultaneously cut the blood vessel by opening and closing. The technical scheme combines the pressing plate and the lever principle, so that the shielding and potential damage of the cutting edge to the surrounding structure when the scissors are opened and closed are reduced; meanwhile, the contact surface of the pressing plate and the short clamp is used as a fulcrum in the lever, so that the force applied by an operator is saved, and the operation fatigue is avoided.

3. Compared with the plane scissors with the lever, the technical scheme adopts the three-dimensional design to reduce the operation area of the microscissors in the visual field, enlarge the operation visual field of medical personnel and reduce the possibility of damage to other tissues and organs.

Further, a shaft center part is formed on the horizontal outer edge of the tail end of the extrusion part, a horizontal pin is connected between the shaft center part and the high pliers, a groove is formed between the shaft center part and the pressing part, and the shape and the depth of the groove are respectively matched with the shape and the thickness of the low pliers.

Compared with a pair of microscissors with an enlarged view field, the pressing plate in the technical scheme can rotate around the shaft center, belongs to an extrusion mode when the shaft center drives the extrusion part to contact with the short pliers, and is contracted and folded when the shaft center rotates in the reverse direction, so that the occupied area for placing the device is reduced.

Furthermore, the cutting edges are arc-shaped, and concave transition arcs are connected between the two groups of cutting edges and the high pincers and the low pincers.

1. For folding microscissors, this technical scheme medical personnel can refer to the area that the blood vessel submerges the indent part of cutting edge to carry out the prediction of cutting off the area when using.

2. For cutting out the micro-scissors that the area was estimated, can utilize concave part to catch the blood vessel (avoid blood vessel contact blade) when this technical scheme used, for the blood vessel interpolation back shadow that the interior concave surface is the dominant color this moment, make things convenient for medical personnel to observe, reduce the visual field interference of other internal organs of patient or blood vessel.

Furthermore, the cutting edge is concave, the cutting edge of the short pliers is provided with a notch, and the two radial ends of the short pliers are provided with height differences. Medical personnel utilize the breach to make blade and vascular shape of contact surface change, realize the diversified of the anastomotic stoma form of blood vessel and cut off, simultaneously, realized the integrative accurate shaping of anastomotic stoma form, reduced the operation that the doctor pruned repeatedly, improved the efficiency of operation to the injury to the patient has been reduced.

Furthermore, a transverse round-head pin is arranged at the hinged position of the high pincers and the low pincers, and a torsion spring is wound on the surface of the round-head pin. The cutting device is convenient to automatically return after being cut off, and the use efficiency is optimized.

Furthermore, one side of the high clamp connected with the pressure plate is provided with a notch, and the width of the notch is equal to that of the pressure plate. The overall size of the device is reduced by utilizing the notch design.

Furthermore, the pressing part of the pressing plate is provided with a groove, and an included angle of 45-60 degrees is formed between the pressing part and the vertical connecting part. The medical staff can place fingers conveniently when pressing.

Drawings

Fig. 1 is an isometric view of a jaw open state according to a first embodiment of the present invention;

FIG. 2 is an isometric view of the closed condition of FIG. 1;

FIG. 3 is an enlarged view taken at A in FIG. 1;

FIG. 4 is an isometric view of the second embodiment with the jaws open;

fig. 5 is an isometric view of the closed condition of fig. 4.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the pliers comprise a high pliers 1, a low pliers 2, a round head pin 3, a cutting edge 4, a notch 5, a pressing plate 6, a pressing part 601, a pressing part 602, a vertical connecting part 603, a shaft center part 604 and a groove 7.

The embodiment is basically as shown in the attached figure 1: microsciscope is pruned to solid, short pincers 2 including high pincers 1 and articulated high pincers 1 head end, the articulated department of high pincers 1 and short pincers 2 passes horizontal button head round

3, 3 surperficial torsional springs of button head round pin have been twined, the right side of the articulated department of high pincers 1 and short pincers 2 is opened there is a set of blade 4, blade 4 is the arc, and be connected with the transition circular arc of indent between two sets of blades 4 and high pincers 1 and the

short pincers

2, 4 surperficial indents of blade, 4 departments of blade of short pincers 2 have semicircular breach 5,

breach

5 and 4 manufacturing integratively of blade.

The left side of the high clamp 1 is provided with a notch, a pressing plate 6 is hinged above the notch, the cross section of the pressing plate 6 is shaped like , the pressing plate 6 comprises a pressing portion 601, a squeezing portion 602 and a vertical connecting portion 603 for connecting the pressing portion 601 and the squeezing portion 602, the pressing portion 601 of the pressing plate 6 is provided with a groove 7, and a 60-degree included angle is formed between the pressing portion 601 and the vertical connecting portion 603.

The horizontal outer edge of the tail end of the extrusion part 602 is provided with a shaft center part 604, a horizontal pin is connected between the shaft center part 604 and the high pliers 1, a groove 7 is formed between the shaft center part 604 and the pressing part 601, and the shape and the depth of the groove 7 are respectively matched with the shape of the low pliers 2 and the contact of the thickness extrusion part 602 with the low pliers 2 in the rotation stroke.

The specific implementation process is as follows: when the blood vessel needs to be cut off, the operator firstly puts the broken end of the anastomotic artery to be cut off between the cutting edges 4 of the device. And adjusting the angle between the blood vessel and the cutting edge 4 according to the direction and radian of the anastomotic stoma to be trimmed until the angle is satisfied.

When the concave part in the cutting edge 4 catches a blood vessel to be anastomosed, and after the angle is adjusted to be suitable, an operator places the thumb on the pressing part 601 of the pressing plate 6 and applies downward pressure, the downward pressure part sequentially drives the vertical connecting part 603 and the squeezing part 602 of the pressing plate 6 to move downwards until the blood vessel adventitia is tightly bitten, then the force parallel to the direction of the far end of the running blood vessel is applied, and after the blood vessel adventitia and the blood vessel wall are sleeved, downward pressure is continuously applied to the pressing part 601.

When the squeezing portion 602 contacts with the short pliers 2, a lever is formed between the pressing plate 6 and the short pliers 2 by taking a contact point of the squeezing portion 602 and the short pliers 2 as a fulcrum, the squeezing portion 602 pressed downwards drives the left side of the short pliers 2 to move downwards at the moment, the short pliers 2 on the right side of a hinge point are closed with the high pliers 1 because the short pliers 2 are hinged with the high pliers 1, and the blood vessel is cut off by the closed cutting edge 4 at the moment. At the moment, medical personnel can adjust the radian of the section cut off by the blood vessel because the cutting edge 4 of the short clamp 2 is provided with the semicircular gap 5.

When the device is folded and contracted, medical staff rotate the axial part of the pressing plate 6, the pressing plate 6 rotates around the axle center part 604 at the moment, when the groove 7 on the surface of the pressing plate 6 wraps the short pliers 2, the folding is completed, and the device is placed after being disinfected at the moment, so that the secondary use is convenient.

Example two:

referring to fig. 4, the difference between the first embodiment and the second embodiment is that the pressing plate is extended 2 times, and the labor-saving lever is changed to a labor-saving lever, which is convenient for the medical staff to hold and operate.

Referring to fig. 5, in the closed state, because the pressing plate 2 is extended, a space is reserved for the short pliers 2 when the pressing plate 2 contacts with the table top, so that the cutting edge 4 of the short pliers 2 is prevented from being abraded and damaged, and the service life is prolonged.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Microsciscope is pruned to solid, its characterized in that: the short pincers of head end including high pincers and articulated high pincers, be equipped with the clamp plate between high pincers and the short pincers, the cross section of clamp plate is "" font, and the clamp plate is including pressing splenium, extrusion portion and connecting the vertical connecting portion of pressing splenium and extrusion portion, and the short pincers of contact in the extrusion portion rotation stroke, and the closed department of short pincers and high pincers all processes there is the blade.

2. The pair of stereoscopic trimming microscissors according to claim 1, wherein: the end horizontal outer edge of the extrusion part is provided with a shaft center part, a horizontal pin is connected between the shaft center part and the high pliers, a groove is formed between the shaft center part and the pressing part, and the shape and the depth of the groove are respectively matched with the shape and the thickness of the low pliers.

3. The pair of stereoscopic trimming microscissors according to claim 2, wherein: the cutting edges are arc-shaped, and concave transition arcs are connected between the two groups of cutting edges and the high pincers and the low pincers.

4. The pair of stereoscopic trimming microscissors according to claim 3, wherein: the cutting edge is concave, the cutting edge of the short pliers is provided with a notch, and the two radial ends of the short pliers are provided with height differences.

5. The pair of stereoscopic trimming microscissors according to claim 1, wherein: the hinged part of the high pincers and the short pincers is provided with a transverse round-head pin, and the surface of the round-head pin is wound with a torsion spring.

6. The pair of stereoscopic trimming microscissors according to claim 1, wherein: one side of the high clamp connected with the pressure plate is provided with a notch, and the width of the notch is equal to that of the pressure plate.

7. The pair of stereoscopic trimming microscissors according to claim 6, wherein: the pressing part of the pressing plate is provided with a groove, and an included angle of 45-60 degrees is formed between the pressing part and the vertical connecting part.