CN210170099U

CN210170099U - Pulmonary artery retractor

Info

Publication number: CN210170099U
Application number: CN201920808903.0U
Authority: CN
Inventors: Lin Liang; 梁林; Liqun Chi; 迟立群
Original assignee: 梁林
Current assignee: Beijing Anzhen Hospital
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-03-24
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a pulmonary artery retractor, include: the hook comprises a hook blade, a hook handle, a connecting chain and a fixed clamping seat; the retractor blade is of a plate-shaped structure, one end of the retractor blade is bent towards one side to form a hook part, the hook part is used for retracting the pulmonary artery to a specified position in the minimally invasive non-stop coronary artery bypass surgery with a small chest opening at the side of a human body, and the other end of the retractor blade is connected with a retractor handle; one end of the connecting chain is connected with the drag hook handle, and the other end is connected with the fixed clamping seat; the fixed clamping seat is provided with a clamping part used for being clamped on the chest wall retractor. The utility model belongs to the technical field of surgical equipment, the utility model aims to solve the problem that convex pulmonary artery can influence art person's sight and operation when the vein bridge near-end coincide with the ascending aorta antetheca in the middle side division chest open little incision wicresoft incessantly does not take a jump coronary artery bypass operation of prior art. The technical effects achieved are as follows: through the pulmonary artery retractor, the pulmonary artery is effectively retracted to a designated position, and the mistaken damage of the pulmonary artery is avoided.

Description

Pulmonary artery retractor

Technical Field

The embodiment of the utility model relates to the technical field of surgical equipment, concretely relates to pulmonary artery retractor.

Background

In clinical medicine, in the operation process of cardiac surgery, a chest wall retractor is often used for opening a chest incision, and then minimally invasive ceaseless jumping coronary artery bypass surgery is performed, wherein the coronary artery bypass surgery is to take blood vessels of a patient per se, such as internal thoracic arteries, great saphenous veins of lower limbs and the like or blood vessel substitutes, connect the far end of a narrow coronary artery and an aorta, enable blood to bypass the narrow part to reach an ischemic part, improve myocardial blood supply, and further achieve the purposes of relieving angina pectoris symptoms, improving heart function, improving life quality of the patient and prolonging the service life of the patient.

In the minimally invasive non-stop-jumping coronary artery bypass grafting operation with the lateral chest opening and the small incision, the sight and the operation of an operator are influenced by the protruded pulmonary artery when the proximal end of the vein bridge is matched with the anterior wall of the ascending aorta. In order to facilitate the operation and avoid the mistaken damage of the pulmonary artery, the pulmonary artery needs to be retracted to a specific position, and no surgical instrument for retracting the pulmonary artery exists in the prior art.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a pulmonary artery retractor to the protruding pulmonary artery can influence the problem of art person's sight and operation when the vein bridge near-end coincide with ascending aorta antetheca in solving the middle side little incision wicresoft of opening chest among the prior art and incessantly jumping coronary artery bypass grafting.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

according to a first aspect of embodiments of the present invention, a pulmonary artery retractor comprises: the hook comprises a hook blade, a hook handle, a connecting chain and a fixed clamping seat; the retractor blade is of a plate-shaped structure, one end of the retractor blade is bent towards one side to form a hook part, the hook part is used for retracting the pulmonary artery to a specified position in the minimally invasive non-stop coronary artery bypass surgery with a small chest opening at the side of a human body, and the other end of the retractor blade is connected with a retractor handle; one end of the connecting chain is connected with the drag hook handle, and the other end is connected with the fixed clamping seat; the fixed clamping seat is provided with a clamping part used for being clamped on the chest wall retractor.

Furthermore, the draw hook handle is obliquely arranged on the draw hook blade, the draw hook handle and the hook part are positioned on the same side of the flat plate part of the draw hook blade, and the dihedral angle of the upper plane of the draw hook handle and the flat plate part of the draw hook blade is a.

Further, the dihedral angle a is in a range of 10 DEG to 15 deg.

Furthermore, the dihedral angle between the side plane of the retractor handle and the symmetry plane of the retractor blade is b.

Further, the dihedral angle b is in the range of 25 DEG ≦ b ≦ 35 deg.

Furthermore, the rotary table further comprises a knob, the knob is rotatably connected to the fixed clamping seat, and one end of the connecting chain is fixed to the peripheral side wall of the rotating shaft of the knob on the fixed clamping seat.

Further, the connecting chain comprises a steel wire and a plurality of steel balls; one end of the steel wire is connected with the drag hook handle, and the other end of the steel wire is connected with the peripheral side wall of the rotating shaft of the knob on the fixed clamping seat; a plurality of steel balls are arranged on the steel wire in a penetrating way.

Furthermore, the retractor also comprises an angle adjusting mechanism, one end of the angle adjusting mechanism is connected with the retractor blade, and the other end of the angle adjusting mechanism is connected with the retractor handle.

Further, the angle adjustment mechanism includes a first plate and a second plate; the first plate is vertically fixed on the second plate, the second plate is fixedly connected with the flat plate part of the drag hook blade through a bolt, and the side plane of the drag hook handle is fixedly connected with the first plate through a bolt.

Furthermore, the hook part is provided with a curved surface which is a quarter of a cylindrical surface.

The utility model has the advantages of as follows:

1. by the utility model, the pulmonary artery is retracted to a designated position in the minimally invasive incessant jump coronary bypass surgery with the small incision with the chest opened at the side, the shielding of the sight of an operator is reduced, the accidental injury to the pulmonary artery in the surgery process is avoided, and the surgery safety is improved;

2. the inclined arrangement of the draw hook handle reduces the difficulty in the operation process and realizes that the draw hook blade is conveyed to the position to be drawn manually or by operating forceps;

3. by arranging the knob and adopting a structural form that a steel wire is inserted into a plurality of steel balls, the connecting chain can be tensioned and drawn only by rotating the knob in the drawing process, and the drawing stability is improved;

4. through setting up angle adjustment mechanism, realized the preceding adjustment of different angles between drag hook handle and the drag hook blade, improved the adaptability to the actual pulmonary artery position of different patients.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is an oblique perspective view of a pulmonary artery retractor provided in embodiment 1 of the present invention.

Fig. 2 is a side perspective view of a pulmonary artery retractor provided in embodiment 1 of the present invention.

Fig. 3 is a partial front view of a pulmonary artery retractor provided in embodiment 1 of the present invention.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a bottom view of a pulmonary artery retractor provided in embodiment 2 of the present invention.

Fig. 6 is a partial front view of a pulmonary artery retractor provided in embodiment 3 of the present invention.

Fig. 7 is a bottom view of fig. 6.

Fig. 8 is a schematic diagram illustrating the use of a pulmonary artery retractor according to some embodiments of the present invention.

In the figure: 1. drag hook blade, 2, drag hook handle, 3, connecting chain, 4, fixed cassette, 5, knob, 6, hook portion, 7, steel ball, 8, steel wire, 9, joint portion, 10, first board, 11, second board.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 and 2, the pulmonary artery retractor of the present embodiment includes: the retractor comprises a retractor blade 1, a retractor handle 2, a connecting chain 3 and a fixed clamping seat 4; the retractor blade 1 is of a plate-shaped structure and can be made of stainless steel, for example, one end of the retractor blade 1 is bent towards one side to form a hook part 6, one width edge of a rectangular stainless steel plate is bent to form the hook part 6, the edges of the rectangular stainless steel plate are in smooth transition, the pulmonary artery is prevented from being scratched in the use process, the hook part 6 is used for retracting the pulmonary artery to a designated position in the minimally invasive non-stop coronary artery bypass surgery of a small incision with a chest opened at the side of a human body, and the other end of the retractor blade 1 is connected with a retractor handle 2; one end of the connecting chain 3 is connected with the drag hook handle 2, and the other end is connected with the fixed clamping seat 4; the fixed clamping seat 4 is provided with a clamping part 9 used for clamping on the chest wall retractor.

In a specific embodiment, the thickness, width and length of the retractor blade 1 and the radian and depth of the hook part 6 are designed according to the physiological characteristics of the normal pulmonary artery, and the hook part 6 can play a role in drawing and protecting the pulmonary artery and simultaneously avoid excessive deformation or stenosis of the pulmonary artery; the position, the angle, the length and the shape of the draw hook handle 2 are designed according to the commonly used operation position of an operator, so that the operator can conveniently grasp the draw hook blade 1 and adjust the angle; the connecting chain 3 adopts a metal chain structure, so that the adjustment and the fixation are convenient in the operation and the operation visual field is not influenced; fixed cassette 4 can the joint on chest wall retractor, and the one end of fixed cassette 4 is provided with joint portion 9, and the shape of joint portion 9 accords with the fixed position on the chest retractor and designs, and fixed cassette 4 can adopt the plastics material to make, and joint portion 9 can have certain elasticity, is convenient for break the joint with it off with the fingers and thumb on chest retractor, in addition, joint portion 9 can also be the structure of similar clip.

In a specific embodiment, as shown in fig. 3, the hook handle is obliquely arranged on the hook blade 1, the hook handle 2 and the hook portion 6 are located on the same side of the flat plate portion of the hook blade 1, and the dihedral angle of the upper plane of the hook handle 2 and the flat plate portion of the hook blade 1 is a, wherein the dihedral angle a is in the range of 10 ° ≦ a ≦ 15 °; as shown in fig. 4, the dihedral angle b between the side plane of the retractor handle 2 and the plane of symmetry of the retractor blade 1 is b, wherein the plane of symmetry of the retractor blade 1 is perpendicular to the plane of the flat plate portion of the retractor blade 1, the curved hook portion 6 of the retractor blade 1 is also symmetrical about this plane, and the dihedral angle b is in the range of 25 ° ≦ b ≦ 35 °; preferably, the numerical value of a is 10, and the numerical value of b is 30, and when placing hook portion 6 of drag hook blade 1 downwards, and the flat plate part level of drag hook blade 1 was placed, at this moment, drag hook handle 2 is towards the preceding below slope, and for the ease of the tractive, be provided with the curved surface on hook portion 6, the curved surface is the fourth cylinder face, and in addition, the curved surface can also select the cylindrical surface design of different proportions according to actual demand.

As shown in fig. 8, in the usage of the pulmonary artery retractor in this embodiment, the chest of the patient is expanded by the chest wall retractor, then the fixing clamping seat 4 of the pulmonary artery retractor is fixed at a proper position of the chest wall retractor, the hook handle 2 is held by a hand or by using a surgical clamp, the hook blade 1 is slowly inserted into the pulmonary artery in the chest cavity of the patient, the hook portion 6 at the front end of the hook blade 1 is attached to the pulmonary artery blood vessel at a specified position, then the pulmonary artery is retracted to a safe position where the visual line of the surgical operation is not interfered by pulling the connecting chain 3, then the minimally invasive non-stop coronary artery bypass surgery with a side chest opening small incision is performed, and after the surgical operation is completed, the hook blade 1 is separated from the pulmonary artery by holding the hook handle 2 by a hand or by using a surgical clamp, and the surgical operation is completed.

The technical effect that this embodiment reaches does: the pulmonary artery is retracted to a designated position in the minimally invasive non-stop-jumping coronary bypass surgery with the small side thoracotomy, the shielding of the sight of an operator is reduced, the accidental injury to the pulmonary artery in the surgery process is avoided, and the surgery safety is improved; through the inclined arrangement of the draw hook handle 2, the difficulty in the operation process is reduced, and the draw hook blade 1 is conveyed to the position needing to be drawn manually or through an operating forceps.

Example 2

As shown in fig. 5, the pulmonary artery retractor in this embodiment includes all the technical features of embodiment 1, in addition, it further includes a knob 5, the knob 5 is rotatably connected to the fixing clip seat 4, one end of the connecting chain 3 is fixed on the peripheral side wall of the rotating shaft of the knob 5 on the fixing clip seat 4, wherein one end of the knob 5 can be made into a mushroom-like holding portion, the holding portion is provided with stripe-shaped or granular-shaped protrusions for increasing the friction force during holding, and one end of the knob 5 away from the holding portion is rotatably connected to the fixing clip seat 4 in a hinged manner or the like; the connecting chain 3 comprises a steel wire 8 and a plurality of steel balls 7; one end of the steel wire 8 is connected with the drag hook handle 2, and the other end is connected with the peripheral side wall of the rotating shaft of the knob 5 on the fixed clamping seat 4; a plurality of steel balls 7 are arranged on the steel wire 8 in a penetrating way.

The use method of this embodiment is the same as the use method of the drag hook blade 1 in embodiment 1, and the difference lies in that this embodiment realizes the tractive to the connecting chain 3 through rotating the knob 5, and when rotating the knob 5, the steel wire 8 progressively twines in the pivot end of knob 5, and the clearance between wearing to establish a plurality of steel balls 7 on the steel wire 8 reduces gradually, continues to rotate the knob 5, and each steel ball 7 butt each other, and the connecting chain 3 is become tight by the pine gradually.

The beneficial effects in this embodiment are: by arranging the knob 5 and adopting a structural form that the steel wire 8 is inserted with the steel balls 7, the connecting chain 3 can be tensioned and drawn only by rotating the knob 5 in the drawing process, and the drawing stability is improved; through the connecting chain 3 that steel wire 8 and steel ball 7 are constituteed, can realize progressively rotating knob 5 and take up connecting chain 3.

Example 3

As shown in fig. 6 and 7, the pulmonary artery retractor in the embodiment includes all the technical features of embodiment 1, and in addition, includes an angle adjusting mechanism, one end of the angle adjusting mechanism is connected with the retractor blade 1, and the other end is connected with the retractor handle 2; in a particular embodiment, the angle adjustment mechanism comprises a first plate 10 and a second plate 11; the first plate 10 is vertically fixed on the second plate 11, the second plate 11 is fixedly connected with the flat plate part of the drag hook blade 1 through bolts, and the side plane of the drag hook handle 2 is fixedly connected with the first plate 10 through bolts; and the joints are set to be in smooth transition.

The using method of the embodiment comprises the following steps: according to the actual condition of a patient, the numerical adjustment of the angle a is realized by adjusting the rotation angle of the draw hook handle 2 on the first plate 10, and after the numerical adjustment is finished, a bolt between the draw hook handle 2 and the first plate 10 is screwed; the numerical adjustment of the angle b is realized by rotating the rotating angle of the second plate 11 relative to the flat plate part of the retractor blade 1, and after the numerical adjustment is finished, the bolt between the second plate 11 and the retractor blade 1 is screwed; after the above adjustment, the proper angle of inclination of the retractor handle 2 relative to the retractor blade 1 is obtained, and then the surgical procedure is performed according to the method of use in example 1.

The beneficial effects in this embodiment are: through setting up angle adjustment mechanism, realized the preoperative adjustment of different angles between drag hook handle 2 and drag hook blade 1, improved the adaptability to the actual pulmonary artery position of different patients.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Claims

1. A pulmonary artery retractor, comprising: the retractor comprises a retractor blade (1), a retractor handle (2), a connecting chain (3) and a fixed clamping seat (4); the retractor blade (1) is of a plate-shaped structure, one end of the retractor blade (1) is bent towards one side to form a hook part (6), the hook part (6) is used for retracting a pulmonary artery to a specified position in a minimally invasive non-stop coronary artery bypass graft surgery with a small chest opening at the side of a human body, and the other end of the retractor blade (1) is connected with the retractor handle (2); one end of the connecting chain (3) is connected with the pull hook handle (2), and the other end of the connecting chain is connected with the fixed clamping seat (4); the fixed clamping seat (4) is provided with a clamping part (9) used for being clamped on the chest wall retractor.

2. The pulmonary artery retractor according to claim 1, wherein the retractor handle (2) is obliquely arranged on the retractor blade (1), the retractor handle (2) and the hook portion (6) are positioned on the same side of the flat plate portion of the retractor blade (1), and the dihedral angle between the upper plane of the retractor handle (2) and the flat plate portion of the retractor blade (1) is a.

3. The pulmonary artery retractor of claim 2, wherein the dihedral angle a is in the range of 10 ° to 15 °.

4. A pulmonary artery retractor according to claim 2, wherein the dihedral angle of the side plane of the retractor handle (2) with respect to the plane of symmetry of the retractor blade (1) is b.

5. The pulmonary artery retractor of claim 4, wherein the dihedral angle b is in the range of 25 ° to 35 °.

6. A pulmonary artery retractor according to claim 1, further comprising a knob (5), wherein the knob (5) is rotatably connected to the fixed clamp seat (4), and one end of the connecting chain (3) is fixed on the peripheral wall of the rotating shaft of the knob (5) on the fixed clamp seat (4).

7. A pulmonary artery retractor according to claim 6, wherein the connecting chain (3) comprises a steel wire (8) and a plurality of steel balls (7); one end of the steel wire (8) is connected with the pull hook handle (2), and the other end of the steel wire is connected with the peripheral side wall of the rotating shaft of the knob (5) on the fixed clamping seat (4); the steel balls (7) penetrate through the steel wire (8).

8. A pulmonary artery retractor according to claim 1, further comprising an angle adjustment mechanism, wherein one end of the angle adjustment mechanism is connected to the retractor blade (1) and the other end is connected to the retractor handle (2).

9. A pulmonary artery retractor according to claim 8, wherein said angular adjustment mechanism comprises a first plate (10) and a second plate (11); the first plate (10) is vertically fixed on the second plate (11), the second plate (11) is fixed on the flat plate part of the drag hook blade (1) through bolt connection, and the side plane of the drag hook handle (2) is fixed on the first plate (10) through bolt connection.

10. Pulmonary artery retractor according to claim 1, wherein the hook portion (6) is provided with a curved surface, which is a quarter cylinder.