CN110811712A - a fixed retractor - Google Patents

Abstract

The invention discloses a fixed retractor, comprising two retractor clips for clamping on the abdominal cavity wall of a patient and a tissue and organ lift rod. One end of the tissue and organ lift rod is connected with one of the retractor clips through a steel wire, and the other One end is connected with the other retractor clip through a steel wire, and the retractor clip includes a long strip-shaped retractor clip fixing shell and a linkage piece that is slidably connected along the length of the retractor clip fixing shell. A reset elastic member is provided, and a clamping assembly is arranged on the fixing shell of the retraction clip. When the linkage member and the fixing shell of the retracting clip slide relative to each other, the clamping assembly is driven to open and close. When the reset elastic member is in a natural state, the clamping assembly is in the clamped state. The present invention is clamped on the abdominal cavity wall by two retraction clips, giving the tissue and organ lifting rod enough supporting force to support the tissue and organ, and then using the tissue and organ lifting rod to lift and support the tissue and organ, so that the tissue and organ lifting rod can be well supported. Expanding horizons for minimally invasive surgery is beneficial for doctors to perform surgery.

Description

a fixed retractor

technical field

The invention relates to the technical field of minimally invasive surgical instruments, in particular to a fixed retractor.

Background technique

Minimally invasive surgery, as the name suggests, is surgery with minimal trauma. Refers to the use of laparoscopes, thoracoscopes and other modern medical equipment and related equipment for surgery. The advantages of minimally invasive surgery are that less trauma, less pain, and faster recovery are the dreams of every patient who needs surgery. Minimally invasive surgery has made this dream a reality.

There are various types of existing minimally invasive surgical instruments, which basically require doctors to operate from outside the human body, such as surgical scissors, grasping forceps, etc. These surgical instruments need to be operated by a doctor. Sometimes, during the operation, the tissues and organs in the patient's abdominal cavity will block or cover the parts that need to be targeted. At this time, the doctor needs to reuse the existing instruments. The tools are opened and supported, which greatly hinders the operation, delays the operation time, and virtually increases the risk of the operation.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the present invention provides a fixed retractor.

For achieving the above object, the technical scheme of the present invention is:

A fixed retractor, comprising two retractor clips for clamping on the abdominal cavity wall of a patient and a tissue and organ lift rod, one end of the tissue and organ lift rod is connected with one of the retractor clips through a steel wire, and the other end is connected with the retractor. Another retraction clip is connected by a steel wire, and the retraction clip includes a long strip-shaped retraction clip fixing shell and a linkage member that is slidably connected along the length of the retraction clip fixing shell, and the linkage member is connected with the retraction clip fixing shell. There is a reset elastic member between them, and a clamping component is arranged on the retraction clip fixing shell. When the linkage member and the retraction clip fixing shell slide relative to each other, the clamping component is driven to open and close, and the reset elastic member is in a natural state. , the clamping assembly is in the clamping state.

Further, the clamping assembly includes two clamping blocks that are rotatably connected to one end of the fixing shell of the retraction clamp, the clamping blocks are provided with a chute, and the linkage member is protruded with a sliding block matched with the chute, The opening and closing of the clamping block is realized through the cooperation between the sliding groove and the sliding block and the cooperation between the linkage piece and the fixing shell of the retracting clamp.

Further, the retraction clip fixing shell is cylindrical in shape, one end of which is protruded with a ring of protruding edges, the retraction clip fixing shell is provided with a through groove running through its side wall, and the retraction clip fixing shell is One end is provided with a slot connected to the through slot for the linkage member to slide, and one end of the linkage member extending into the fixing shell of the retraction clip is protruded with two blocking blocks along the direction of the through groove, and the blocking blocks extend and retract In the clip fixing shell, one end of the reset elastic piece is abutted against a clamping block, and the other end is abutted against a convex edge, and the clamping block extends in a direction close to the clamping block and is connected with the clamping block.

Further, a pull hook is provided at one end of the linkage member away from the fixing shell of the retraction clip. By adding a pull hook, the linkage can be better pulled, and the relative sliding with the fixing shell of the retraction clip can be performed to complete the clamping function.

Further, the tissue and organ lift rod includes a lift rod cover and a lift rod inner rod, the lift rod cover is a cylindrical structure with one end closed, the lift rod inner rod is cylindrical in shape, and the lift rod The rod sleeve is sleeved on the outside of the lift rod inner rod and is slidably connected with the lift rod inner rod. Open clip connection. In this way, the length of the tissue-organ lifting rod can be adjusted adaptively according to different tissues and organs, thereby making the use more convenient.

Further, a tension spring is arranged between the lift rod cover and the lift rod inner rod, one end of the tension spring is fixedly connected with the closed end face inside the lift rod cover, and the other end of the tension spring is connected with the lift rod. The end face of one end of the rod extending into the rod cover is fixedly connected. In this way, the tissue and organ lifter can be automatically retracted under normal conditions, and due to the existence of the tension spring, the supporting force between the two retraction clips is indirectly increased, so that the tissue and organ lifter can be lifted more stably .

Compared with the prior art, the present invention has the following advantages:

The invention is clamped on the abdominal cavity wall by two retraction clips, giving the tissue and organ lifting rod enough supporting force to support the tissue and organ, and then using the tissue and organ lifting rod to lift and support the tissue and organ, so that the tissue and organ lifting rod can be well supported. Expanding horizons for minimally invasive surgery, reducing the difficulty of surgery, and helping doctors to perform surgery. At the same time, both the retractor clip and the lifting rod for tissues and organs are cylindrical structures, which can be better sent from the Trocar hole into the abdominal cavity of the human body for clamping work. Used with tissue and organ clips, the tissue and organ lift rod is a retractable structure, which can adapt to and support tissues and organs of various lengths and sizes.

Description of drawings

Fig. 1 is the overall structure schematic diagram of fixed retractor;

Fig. 2 is the sectional schematic diagram of the overall internal structure of the fixed retractor;

Figure 3 is a schematic cross-sectional view of the internal structure of the retractor clip for fixing the retractor;

Description of reference numerals: 1. Retractor clip; 11. Retractor clip fixing shell; 111, Through groove; 112, Slotted; 113, Raised edge; 14, clamping assembly; 141, clamping block; 142, slider; 143, chute; 15, retractor; 2, tissue and organ lift rod; 21, lift rod cover; 22, lift rod inner rod; 23, tension spring 3. Steel wire.

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Example

As shown in Figure 1, a fixed retractor includes two retractor clips 1 for clamping on the abdominal cavity wall of a patient and a tissue and organ lift rod 2, one end of the tissue and organ lift rod 2 is connected to one of the retractor clips 1 is connected by a steel wire 3, and the other end is connected with another retractor clip 1 through a steel wire 3, the whole of the tissue and organ lift rod 2 is cylindrical, and the whole of the retractor clip 1 is a structure similar to a cylinder, and the radius of the two is cylindrical. It is similar, so that it can better be sent into the abdominal cavity of the human body from the Trocar hole for clamping work. In order to avoid defects such as barbs in the production process of the steel wire 3, a layer of medical soft rubber tube can also be covered on the steel wire 3.

As shown in FIG. 3 , the retractor clip 1 includes a cylindrical retractor clip fixing shell 11 and a link member 12 slidably connected along the length of the retractor clip fixing shell 11 . There is a reset elastic member 13, the retraction clip fixing shell 11 is provided with a clamping component 14, the linkage 12 and the retraction clip fixing shell 11 are relatively sliding to drive the clamping component 14 to open and close, and the reset elastic member 13 is in a natural state , the clamping assembly 14 is in the clamping state.

One end of the retraction clip fixing shell 11 is protruded with a ring of raised edges 113 , the retraction clip fixing shell 11 is provided with a through groove 111 penetrating its side wall, and one end of the retraction clip fixing shell 11 is provided with a channel connected to the through groove 111 . A slot 112 for the linkage 12 to slide, one end of the linkage 12 extending into the retraction clip fixing shell 11 is protruded with two blocking blocks 121 along the direction of the through groove 111, and the blocking blocks 121 extend out of the retraction clip fixing shell 11, The reset elastic member 13 can be a spring, one end of which is in contact with the clamping block 121 and the other end is in contact with the convex edge 113 . The clamping assembly 14 includes two clamping blocks 141 rotatably connected to one end of the retracting clamp fixing shell 11 . The shape and structure of the clamping blocks 141 can be adjusted according to the shape and structure, and can be a flat block structure or a hook structure. The clamping block 141 is provided with a chute 143 , and the linkage 12 is protruded with a sliding block 142 that cooperates with the sliding groove 143 . The sliding of the clip realizes the opening and closing of the clamping block 141 .

When there is relative sliding between the linkage 12 and the retraction clip fixing shell 11 , because the clamping block 141 and the retracting clip fixing shell 11 are hinged, the clamping block 141 will slide under the cooperation of the sliding block 142 and the sliding groove 143 . With the sliding of the linkage member 12, there will be corresponding opening and closing actions to achieve the effect of linkage opening and closing.

Here, in order to reduce the maximum width of the retractor clip 1 as much as possible, the linkage member 12 and the retractor clip fixing shell 11 are arranged in a similar coaxial arrangement, so as to be better sent into the human body through the Trocar hole. At the same time, in order to better operate in the human body, a pull hook 15 is provided at one end of the link member 12 away from the retraction clip fixing shell 11 , and the pull hook 15 can better realize the relative sliding between the fixed shell and the link member 12 .

As shown in FIG. 2, the tissue and organ lifter 2 includes a lifter cover 21 and a lifter inner rod 22. The lifter cover 21 is a cylindrical structure with one end closed, and the lifter inner rod 22 is cylindrical in shape. The rod sleeve 21 is sleeved outside the lift rod inner rod 22 and is slidably connected with the lift rod inner rod 22 . The closed end of the lift rod sleeve 21 is connected to the retraction clip 1 , and the end of the lift rod inner rod 22 extending out of the lift rod sleeve 21 is connected to the retraction clip 1 . In order to prevent the lift rod inner rod 22 from being completely retracted into the lift rod rod sleeve 21, a convex edge can be provided at the end of the lift rod inner rod 22 extending out of the lift rod rod sleeve 21; The rod cover 21 can be provided with a corresponding limit structure on the lift rod inner rod 22 and the lift rod cover 21, and the specific limit structure is not limited here, as long as it can meet the corresponding functions. In this way, the length of the tissue-organ lifting rod 2 can be adjusted adaptively according to different tissues and organs, thereby making the use more convenient.

As an optimization, a tension spring 23 can also be arranged between the lift rod cover 21 and the lift rod inner rod 22 , one end of the tension spring 23 is fixedly connected to the closed end surface inside the lift rod cover 21 , and the other end of the tension spring 23 is connected to the inner side of the lift rod cover 21 . The end face of one end of the lift rod inner rod 22 extending into the lift rod rod sleeve 21 is fixedly connected. In this way, the tissue and organ lifting rod 2 can be automatically retracted under normal conditions, and due to the existence of the tension spring 23, the supporting force between the two retraction clips 1 is indirectly increased, so that the tissue and organ lifting rod 2 can be Lift more stable.

Specifically, when in use, first all the fixed retractor of the present invention is sent into the abdominal cavity of the human body, and then the linkage 12 is pulled by a tool, so that the clamping component 14 of one of the retractor clips 1 is opened, according to the required distance. After clamping it on the abdominal cavity wall of the patient, use the same steps to clamp another retractor clip 1 to another part of the abdominal cavity wall of the patient, and use the retractable tissue and organ lift rod 2 to lift the tissue and organ to achieve expansion. Purpose of the surgical field. Finally, after use, it is only necessary to pull the linkage 12 successively to release the clamping of the retractor clip 1, and then it is only necessary to take out the present invention completely.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those of ordinary skill in the art to understand the content of the present invention and implement them accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the essence of the present invention shall be included within the protection scope of the present invention.

Claims (6)

1. A fixed retractor, characterized in that: comprising two retractor clips (1) for being clamped on the patient's abdominal cavity wall and a tissue and organ lift rod (2), the tissue and organ lift rod (2) One end is connected to one of the retraction clips (1) through a wire (3), and the other end is connected to the other retraction clip (1) through a wire (3). A clip-opening fixing shell (11) and a linkage member (12) slidably connected in the direction along the length of the retracting clip-fixing shell (11), the linkage member (12) and the retracting clip-fixing shell (11) are provided with reset An elastic member (13), a clamping assembly (14) is provided on the retraction clip fixing shell (11), and the linkage member (12) drives the clamping assembly when the retraction clip fixing shell (11) slides relative to each other (14) When opening and closing, when the restoring elastic member (13) is in a natural state, the clamping assembly (14) is in a clamping state. 2 . The fixed retractor according to claim 1 , wherein the clamping assembly ( 14 ) comprises two clamping blocks ( 141 ) rotatably connected to one end of the fixing shell ( 11 ) of the retraction clamp, and the A chute (143) is formed on the clamping block (141), and a sliding block (142) is protruded on the linkage (12) to cooperate with the sliding groove (143), and the sliding groove (143) communicates with the sliding block (142) through the sliding groove (143). ) and the cooperation between the linkage member (12) and the fixing shell (11) of the retractor clip to realize the opening and closing of the clip block (141). 3. The retractor fixer according to claim 2, characterized in that: the retraction clip fixing shell (11) is cylindrical in shape, and one end of which is protruded with a ring (113), the retraction clip The fixing shell (11) is provided with a through slot (111) penetrating the side wall thereof, and one end of the retraction clip fixing shell (11) is provided with an opening communicating with the through slot (111) for the linkage (12) to slide. a slot (112), and one end of the linkage member (12) extending into the retraction clip fixing shell (11) is protruded along the direction of the through slot (111) with two blocking blocks (121), the blocking blocks (121) Extend the retraction clip fixing shell (11), one end of the reset elastic member (13) is in contact with the clamping block (121), and the other end is in contact with the convex edge (113), and the clamping block (121) is close to the clamping block. (141) extends and connects with the clamping block (141). 4 . The fixed retractor according to claim 1 , wherein a pull hook ( 15 ) is provided at one end of the linkage member ( 12 ) away from the fixing shell ( 11 ) of the retraction clip. 5 . 5. The fixed retractor according to claim 1, wherein the tissue and organ lift rod (2) comprises a lift rod cover (21) and a lift rod inner rod (22), the lift rod cover (21) is a cylindrical structure with one end closed, the lift rod inner rod (22) is cylindrical in shape, and the lift rod rod sleeve (21) is sleeved on the outside of the lift rod inner rod (22), and is connected with the lift rod inner rod (22). The rod inner rod (22) is slidably connected, the closed end of the lift rod cover (21) is connected with the retraction clip (1), and the lift rod inner rod (22) protrudes from one end of the lift rod cover (21) Connect with the retractor clip (1). 6 . The fixed retractor according to claim 5 , wherein a tension spring ( 23 ) is arranged between the lift rod cover ( 21 ) and the lift rod inner rod ( 22 ), and the tension spring ( One end of 23) is fixedly connected with the closed end face inside the lift rod cover (21), and the other end of the tension spring (23) is connected to the end of the lift rod inner rod (22) extending into the lift rod cover (21). End face fixed connection.

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