CN215740982U - Physiological saline frame for arthroscopic surgery - Google Patents

Abstract

The utility model relates to the technical field of pressure infusion instruments and discloses a normal saline frame for arthroscopic surgery. Comprises a frame body, a pressurizing mechanism and a traction mechanism, wherein the pressurizing mechanism comprises an air bag for pressurizing the physiological saline bag and an inflating assembly communicated with the air bag; the traction mechanism comprises a traction rope and a driving piece for retracting the traction rope, the driving piece is rotatably connected with the frame body, one end of the traction rope is fixedly connected with the driving piece and wound on the driving piece, and the other end of the traction rope is used for fixing the physiological saline bag; the driving piece is connected with a limiting piece used for limiting the rotation of the driving piece. The normal saline frame for arthroscopic surgery can conveniently adjust the flushing pressure, and ensures the smooth operation.

Description

Physiological saline frame for arthroscopic surgery

Technical Field

The utility model relates to the technical field of pressure infusion instruments, in particular to a normal saline frame for arthroscopic surgery.

Background

Arthroscopes are precision endoscopes coupled to a camera for examination and treatment of joints. The arthroscope can be operated through a small incision in the skin. Arthroscopic surgery is less painful, less risky to infect, and the patient recovers faster after surgery than open surgery, which requires a larger incision.

In arthroscopic surgery, an important link is that a certain pressure of sterile physiological saline is needed to fill and clean the joint cavity. The bleeding in the operation area and the cut tissue fragments are washed away, and the operator is given sufficient operation space and clear operation visual field. The pressure of the saline directly affects the progress of the operation. If the pressure of the physiological saline is too low or discontinuous, air enters the joint cavity, so that the visual field is blurred, and the operation is influenced; too high pressure is likely to cause complications such as tissue edema. Therefore, the pressure regulation is an essential link in the operation process of the operation, which can ensure the smooth operation and reduce the occurrence of complications.

At present, a physiological saline bag is hung on an infusion support, and the flushing pressure of the physiological saline is adjusted by manually pressurizing the physiological saline bag through a pressurizing bag, so that the mode has the following problems:

1) when the medical staff manually pressurizes, the inflation quantity is not easy to control, and the excessive inflation quantity of the pressurizing bag can be caused, so that the pressurizing bag needs to be deflated through the exhaust valve; if the air is too much leaked, the pressurizing bag needs to be inflated again; repeated operation is very complicated; especially, in emergency operation, the whole operation process and the safety of the patient can be affected.

2) The pressure regulation mode of the pressurizing bag to the physiological saline bag is single, and the regulation efficiency is slow.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a normal saline frame for arthroscopic surgery to solve the problem of inconvenient pressure adjustment operation of a normal saline bag.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the normal saline frame for arthroscopic surgery comprises a frame body, a pressurizing mechanism and a traction mechanism, wherein the pressurizing mechanism comprises an air bag for pressurizing a normal saline bag and an inflating assembly communicated with the air bag; the traction mechanism comprises a traction rope and a driving piece for retracting the traction rope, and the driving piece is rotatably connected with the frame body; one end of the traction rope is fixedly connected with the driving piece and wound on the driving piece, and the other end of the traction rope is used for fixing the physiological saline bag; the driving piece is connected with a limiting piece used for limiting the rotation of the driving piece.

The principle and the advantages of the scheme are as follows:

1. the air bag in the technology is used for pressurizing the physiological saline bag, and the inflating component is used for inflating the air bag; during arthroscopic surgery, the air bag is inflated to expand and extrude the physiological saline bag, so that the liquid in the physiological saline bag is pressurized, and the flushing pressure is increased.

2. The inventor adds a traction mechanism on the basis of pressurizing the air bag; the frame body is used for fixing and supporting the traction mechanism; the traction rope is used for hanging the physiological saline bag; the driving piece is used for retracting and releasing the traction rope, so that the traction rope is extended or shortened, and the height of the physiological saline bag is adjusted; the limiting piece is used for limiting the driving piece to rotate and achieving the positioning of the driving piece.

In arthroscopic surgery, after the air bag is inflated to pressurize the saline bag, if the pressure of the saline bag needs to be adjusted, the traction rope can be retracted through the driving part of the traction mechanism, so that the saline bag rises or falls, the gravitational potential energy of the saline bag is changed, and the flushing pressure of the saline bag is adjusted. Compared with the prior art that the pressure of the saline bag is adjusted only by adopting the pressurizing bag, the technology adopts the combination of the lifting of the air bag and the traction mechanism, so that the adjusting mode is more various and flexible; particularly, in emergency operation, after the pressure of the air bag is adjusted, fine adjustment can be realized by lifting the saline bag, so that the operation is more convenient and the efficiency is higher.

Preferably, as an improvement, the locating part includes spacing strip, limiting plate and is located the spacing hole of a plurality of limiting plate circumference, limiting plate and support body fixed connection, spacing strip one end with driving piece sliding connection, the other end with spacing hole sliding connection.

Has the advantages that: the limiting piece is used for fixing the rotating position of the driving piece; when the length of the traction rope needs to be adjusted, the limiting strip is pulled out of the limiting hole, and the driving piece is rotated to extend or shorten the traction rope; after the haulage rope reaches appointed length, can insert spacing downthehole with spacing, fix the driving piece, can prevent that the driving piece from rotating, make the haulage rope keep at the fixed length to make the height of normal saline keep fixed.

Preferably, as an improvement, the frame body is provided with a guide member for defining a position of the traction rope.

Has the advantages that: in the process of retracting and releasing the traction rope, the traction rope can be subjected to position deviation to influence the operation process, the guide piece can enable the traction rope to move along a certain direction, the retraction and release of the traction rope are guaranteed, and therefore the operation is guaranteed to be smoothly carried out.

Preferably, as an improvement, the guide member includes one or more of a guide ring, a guide sleeve and a pulley;

or the guide piece is a guide hole positioned in the frame body.

Has the advantages that: the haulage rope can pass guide ring, uide bushing or pulley, is convenient for guide the trend of haulage rope, is convenient for install the haulage rope. Or the hauling cable passes through the guide hole, the position of the hauling cable is limited through the guide hole, and the guide hole plays a role in protecting and guiding the hauling cable.

Preferably, as an improvement, the frame body comprises a fixing rod, a lifting rod and a fixing piece, and the fixing rod is connected with the lifting rod in a sliding manner; the fixing rod is provided with a through hole, and the fixing piece is used for extending into the through hole and abutting against the lifting rod.

Has the advantages that: the fixed rod is used for supporting the lifting rod, and the lifting rod is used for adjusting the height. During arthroscopic surgery, the height of the normal saline bag is adjusted by adjusting the height of the lifting rod, so that the flushing pressure generated by the normal saline bag is adjusted; when the lifting rod is lifted, the gravitational potential energy of the physiological saline in the washing bag is increased, and the washing pressure is increased along with the gravitational potential energy; when the lifting rod is lowered, the gravitational potential energy is reduced, and the flushing pressure is reduced accordingly. After the lifting rod is lifted to a proper position, the fixing piece can abut against and position the lifting rod.

Preferably, as an improvement, the inner wall of the airbag is provided with a friction portion.

Has the advantages that: the friction portion is used to increase the friction coefficient of the airbag. After the air bag is inflated, pressure is generated between the air bag and the side wall of the normal saline bag, so that friction force overcoming the action of gravity is generated between the air bag and the side wall of the normal saline bag, and the air bag cannot slip due to the action of gravity. The friction force between the normal saline bag and the air bag can be increased by the arrangement of the friction part, the risk of slippage of the air bag is reduced, the stability of flushing pressure is ensured, and the smooth operation is ensured.

Preferably, as an improvement, the friction part is a plurality of convex grains or convex strips.

Has the advantages that: when the air bag is inflated, the convex particles or the convex strips are inwards protruded and sunk into the side wall of the saline water bag, so that the friction force between the air bag and the saline water bag is increased, and the slipping risk of the air bag is reduced.

Preferably, as an improvement, the inflation assembly comprises an inflation tube, an inflation piece and a check valve, one end of the inflation tube is communicated with the airbag, the other end of the inflation tube is communicated with the inflation piece, and the check valve is located in the inflation tube.

Has the advantages that: the air inflation pipe and the air inflation piece are used for inflating the air bag, and the check valve is an air inlet one-way valve to prevent air in the air bag from flowing back.

Preferably, as an improvement, the pressurization mechanism further comprises an exhaust assembly, the exhaust assembly comprises an exhaust pipe communicated with the air bag, and an exhaust valve is arranged on the exhaust pipe.

Has the advantages that: the exhaust assembly is used for deflating the air bag. The exhaust valve is opened to press the air bag, and the air is exhausted from the exhaust pipe.

Preferably, as an improvement, the bottom of the frame body is connected with a base, and the base is provided with a moving mechanism.

Has the advantages that: the base is used for supporting and fixing the physiological saline frame body so that the physiological saline frame body can stand stably; the moving mechanism can move the physiological saline frame at any time, and is not limited by space and position when in use, so that the application range is wider.

Drawings

FIG. 1 is a front view of embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion of the joint between the fixing rod and the lifting rod of FIG. 1;

FIG. 3 is an enlarged view of a portion of the limiter and driver of FIG. 1;

FIG. 4 is a left side view of the stop of FIG. 1;

FIG. 5 is a top view of the bladder of FIG. 1;

FIG. 6 is a schematic view of the inner wall of the air bag of FIG. 1;

FIG. 7 is a schematic view of the inner wall of the air bag in example 2 of the present invention;

FIG. 8 is a front view of embodiment 3 of the present invention;

FIG. 9 is a schematic view of the outer wall of the airbag at the time of deployment of the airbag of embodiment 4 of the utility model.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a base 1, a plug hole 101, a support leg 102, a universal wheel 103, a fixing rod 2, a lifting rod 3, a guide hole 4, a bump 5, a fixing piece 6, a traction rope 7, a take-up pulley 8, a connecting shaft 9, a handle 10, a limiting groove 11, a limiting strip 12, a limiting plate 13, a limiting hole 131, a hook 14, an air bag 15, a pressure cavity 151, a separation surface 16, a fold portion 17, a channel 18, a convex particle 19, an inflatable ball 20, a check valve 21, an inflatable tube 22, an exhaust tube 23, an exhaust valve 24, a physiological saline bag 25, a convex strip 26, a guide ring 27, a pulley 28, a hook-and-loop fastener 29 and an air cavity 30.

Example one

This embodiment is substantially as shown in figures 1-6 of the drawings: the normal saline frame for arthroscopic surgery comprises a frame body, a pressurizing mechanism and a traction mechanism.

As shown in fig. 1, the shelf body includes a base 1, a fixing rod 2 and a lifting rod 3. The middle part of the base 1 is provided with a plug-in hole 101, five supporting legs 102 are uniformly welded on the circumference of the base 1, and the bottom of each supporting leg 102 is fixedly connected with a universal wheel 103. The bottom of the fixed rod 2 is fixedly connected with the inserting hole 101 through threads. The side wall of the fixing rod 2 is provided with a first through hole, a first through hole is welded with a lug 5, a second through hole communicated with the first through hole is formed in the lug 5, the first through hole and the second through hole are internally threaded with a fixing piece 6, the fixing piece 6 comprises a twisting disc and a screw rod fixed at the center of the twisting disc, the circumferential direction of the twisting disc is plum blossom-shaped, and the twisting disc is convenient to grip by hands. The lifting rod 3 is the shape of falling L, including horizontal pole and montant, and the montant inserts 2 inside sliding connection with it of dead lever, moves the dish through rotatory twisting and can realize that the screw rod stretches into in the dead lever 2 and supports the montant tightly fixed. Guide members are axially arranged in the lifting rod 3 and the fixing rod 2, the guide members are guide holes 4 in the embodiment, and the guide holes 4 are through holes.

As shown in FIG. 1, the inflation assembly includes an inflatable ball 20, a non-return valve 21, and an inflation tube 22 located between the inflatable ball 20 and the air bag 15. The air bag 15 is provided with an exhaust assembly, and the exhaust assembly comprises an exhaust pipe 23 communicated with the air bag 15 and an exhaust valve 24 positioned on the exhaust pipe 23. The air bag 15 can be deflated by opening the exhaust valve 24.

As shown in fig. 3, the pulling mechanism includes a pulling rope 7, a driving member, and a stopper. The driving piece comprises a take-up pulley 8, a connecting shaft 9 and a handle 10, the handle 10 is positioned outside the fixed rod 2, the take-up pulley 8 is positioned inside the fixed rod 2, and the centers of two ends of the take-up pulley 8 protrude outwards to form the connecting shaft 9; a first round hole is formed in the side wall of the fixed rod 2, and a connecting shaft 9 at the left end of the take-up pulley 8 penetrates through the first round hole to be fixedly connected with a handle 10; the inner wall of the guide hole 4 is provided with a blind hole, and a connecting shaft 9 at the right end of the take-up pulley 8 extends into the blind hole to be rotatably connected with the inner wall of the guide hole 4.

The limiting member comprises a limiting groove 11, a limiting strip 12, a limiting plate 13 and a plurality of limiting holes 131 located on the circumferential direction of the limiting plate 13 in fig. 4. The limiting groove 11 is axially arranged on the surface of the handle 10; the limiting plate 13 is fixedly connected to the outer side wall of the fixing rod 2, and a round hole II used for penetrating the handle 10 is formed in the center of the limiting plate 13. The round hole II is communicated with the round hole I. The limiting strip 12 comprises a vertical part and a horizontal part which are perpendicular to each other and fixedly connected, sliding grooves are arranged on the groove walls of two sides of the limiting groove 11, and sliding blocks are arranged on two sides of the vertical part; the sliding block extends into the sliding groove to realize the sliding connection between the vertical part and the limiting groove 11; the horizontal part is inserted into the limiting hole 131 to realize a positioning function. One end of the traction rope 7 is fixedly connected with the take-up pulley 8 and is wound on the take-up pulley 8; the other end passes through the guide hole 4, penetrates out of the free end of the lifting rod 3 and is connected with a hook 14.

The pressurizing mechanism includes an airbag 15 and an inflation assembly. As shown in fig. 5, the air bag 15 has a double-layer structure, the inner layer is made of soft plastic, and the outer layer is made of hard plastic; the bladder 15 is sealed at its perimeter and the bladder 15 is joined end to enclose a pressure chamber 151. In this embodiment, the pressure chamber 151 is a structure with openings at the top and the bottom, the saline bag 25 is hung on the hook 14, the air bag 15 is wrapped around the saline bag 25, and the saline bag 25 is located in the pressure chamber 151. The pressure chamber 151 is not limited to this structure, and may be a structure in which the top is opened and the bottom is sealed, and the bladder 15 is hung on the hook 14 and the saline bag 25 is directly put in the pressure chamber 151.

The bladder 15 is provided with six isolation surfaces 16 in the axial direction as shown in fig. 6 (for convenience of illustration, the side wall of the bladder 15 is cut away along one isolation surface 16 to show the side wall of the pressure chamber 151). The isolation surface 16 divides the air bag 15 into six air cavities 30 as shown in fig. 5; in the inflated condition, the inner side wall of the air chamber 30 may bulge inwardly to form a fold 17. The isolation surface 16 is provided with a passage 18 for communicating two adjacent air chambers 30. The release surface 16 may be formed in a variety of ways including, but not limited to, the inner and outer layers being thermally bonded together to form the release surface 16. The surface of the fold 17 is uniformly distributed with friction parts, which in this embodiment are raised grains 19, for preventing the saline bag 25 placed in the pressure chamber 151 from sliding down.

The specific implementation process is as follows:

the physiological saline bag 25 is hung and the frame body is adjusted: firstly, the fixing piece 6 is unscrewed, the lifting rod 3 is adjusted to a certain height, and then the fixing piece 6 is screwed down, so that the fixing piece 6 is abutted against the lifting rod 3, and the position between the fixing rod 2 and the lifting rod 3 is kept fixed. Then, the pulling string 7 is extended by rotating the handle 10, and the saline bag 25 is hung on the hook 14.

Pressurizing: the air bag 15 is sleeved on the saline bag 25, so that the saline bag 25 is positioned in the pressure cavity 151 of the air bag 15, and the exhaust valve 24 is closed. The air bag 15 is inflated by pressing the inflatable ball 20. As the air in the bladder 15 increases, the six pleats 17 expand inward, pressing the saline bag 25, and causing the saline bag 25 to generate a certain irrigation pressure. Meanwhile, as the fold 17 expands, the convex particles 19 on the fold 17 sink into the sidewall of the saline bag 25, increasing the friction between the air bag 15 and the saline bag 25, thereby reducing the risk of the air bag 15 slipping.

Pressure regulation: medical personnel accessible twist grip 10 makes the haulage rope 7 shorten or extend, and then adjusts the height of normal saline bag 25, adjusts normal saline bag 25's washing pressure, has avoided filling the gassing repeatedly to gasbag 15 to reduce medical personnel's work load, improve operation efficiency.

Example two

The difference from the first embodiment is that: the raised grains 19 are replaced by a plurality of raised strips 26 as shown in fig. 7. The ribs 26 are disposed horizontally along the pleats 17.

When the air bag 15 is inflated, the fold 17 expands, and the raised strip 26 on the fold 17 sinks into the sidewall of the saline bag 25 to clamp the saline bag 25, thereby reducing the risk of the air bag 15 slipping.

EXAMPLE III

The difference from the first embodiment is that: the guide elements are different and the position of the drive elements is different. As shown in fig. 8, the guide members in this embodiment are two guide rings 27 and one pulley 28 provided on the side wall of the lifter bar 3. The driving piece is fixed on the outer side wall of the fixed rod 2, and the connecting shaft 9 at the left end of the take-up pulley 8 is rotatably connected with the limiting plate 13.

Example four

As shown in fig. 9, unlike the first embodiment: the shape of the air bag 15 is different, in this embodiment, the air bag 15 has a rectangular double-layer structure, the fastening tapes 29 are arranged on the outer wall of the air bag 15, and the fastening tapes 29 are positioned on the left and right sides of the outer wall.

When the device is used, the sticking buckle tapes 29 are mutually bonded to form a pressure cavity 151, and the physiological saline bag 25 is placed in the pressure cavity 151.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications 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 (10)

1. The normal saline frame for arthroscopic surgery comprises a frame body, a pressurizing mechanism and a traction mechanism, wherein the pressurizing mechanism comprises an air bag for pressurizing a normal saline bag and an inflating assembly communicated with the air bag; the traction mechanism is characterized by comprising a traction rope and a driving piece for winding and unwinding the traction rope, wherein the driving piece is rotatably connected with the frame body, one end of the traction rope is fixedly connected with the driving piece and wound on the driving piece, and the other end of the traction rope is used for fixing the physiological saline bag; the driving piece is connected with a limiting piece used for limiting the rotation of the driving piece.

2. The physiological saline holder for arthroscopic surgery according to claim 1, wherein: the limiting part comprises a limiting strip, a limiting plate and a plurality of limiting holes located in the circumferential direction of the limiting plate, the limiting plate is fixedly connected with the frame body, one end of the limiting strip is connected with the driving part in a sliding mode, and the other end of the limiting strip is connected with the limiting holes in a sliding mode.

3. The physiological saline holder for arthroscopic surgery according to claim 1, wherein: the frame body is provided with a guide piece used for limiting the position of the traction rope.

4. The physiological saline holder for arthroscopic surgery according to claim 3, wherein: the guide piece comprises one or more of a guide ring, a guide sleeve and a pulley;

or the guide piece is a guide hole positioned in the frame body.

5. The physiological saline holder for arthroscopic surgery according to claim 1, wherein: the frame body comprises a fixed rod, a lifting rod and a fixing piece, and the fixed rod is connected with the lifting rod in a sliding manner; the fixing rod is provided with a through hole, and the fixing piece is used for extending into the through hole and abutting against the lifting rod.

6. The physiological saline holder for arthroscopic surgery according to claim 1, wherein: the inner wall of the air bag is provided with a friction part.

7. The physiological saline holder for arthroscopic surgery according to claim 6, wherein: the friction part is a plurality of convex grains or convex strips.

8. The physiological saline holder for arthroscopic surgery according to claim 1, wherein: the inflation assembly comprises an inflation tube, an inflation piece and a check valve, one end of the inflation tube is communicated with the air bag, the other end of the inflation tube is communicated with the inflation piece, and the check valve is located in the inflation tube.

9. The physiological saline holder for arthroscopic surgery according to claim 1, wherein: the pressurizing mechanism further comprises an exhaust assembly, the exhaust assembly comprises an exhaust pipe communicated with the air bag, and an exhaust valve is arranged on the exhaust pipe.

10. The physiological saline holder for arthroscopic surgery according to claim 1, wherein: the bottom of the frame body is connected with a base, and a moving mechanism is arranged on the base.

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