CN219814194U

CN219814194U - Tendon expander

Info

Publication number: CN219814194U
Application number: CN202222446231.8U
Authority: CN
Inventors: 胡永成
Original assignee: Beijing Wei Da Feng Medical Biomaterials Co ltd
Current assignee: Beijing Wei Da Feng Medical Biomaterials Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-10-13
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a tendon expander, which relates to the field of medical equipment and comprises two expansion plates and a handheld rod, wherein the two expansion plates are vertically arranged above the handheld rod, L-shaped rods are fixedly connected to the opposite sides of the two expansion plates, guide mechanisms are arranged at the upper ends of the left side and the right side of the handheld rod, the two L-shaped rods are in sliding connection with the handheld rod through the guide mechanisms, a cavity is formed in the handheld rod, an air cylinder which is vertically arranged is fixedly arranged in the middle of the cavity, and a piston is arranged in the air cylinder in a sliding manner. When the medical device is used, after the surgical wound of a patient is expanded, medical staff does not need to continuously press, only the handheld device is required to be stabilized, so that the medical device can be stably held for a longer time, is not easy to shake hands, is convenient for a doctor to perform the operation, and is expanded in an air bag inflation mode, so that the more serious injury to the wound of the patient caused by mechanical hard expansion is avoided, and the medical device is convenient for people to use.

Description

Tendon expander

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a tendon dilator.

Background

In order to fully expose the operation incision in the field of vision in the orthopedic operation, often need to expand the operation incision, and at present when expanding patient operation incision, generally need to use the expander to insert in the operation incision, then hold the expander and carry out the tractive through medical personnel to expand operation incision, but, above-mentioned mode is when operating, needs medical personnel to last the hand and pulls with force, and long-time work leads to medical personnel's hand bloated easily, causes medical personnel's hand shake, thereby easily leads to patient's operation incision to receive the injury again, and influence doctor's operation, and the expander among the prior art adopts mechanical hard tractive expansion simultaneously, easily makes patient's operation wound receive comparatively serious injury, inconvenient people use.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the tendon expander, which effectively solves the problems that the expander is generally needed to be inserted into the operation incision and then is held by medical staff to be pulled so as to expand the operation incision at present when the operation incision of a patient is expanded, but when the operation is carried out, the medical staff is needed to continuously pull the hand with force, the hand of the medical staff is easy to be inflated after long-time work, the hand of the medical staff is easy to shake, the operation incision of the patient is easy to be damaged again, the operation of a doctor is influenced, and meanwhile, the operation incision of the patient is easy to be seriously damaged by adopting mechanical hard pulling expansion by the expander in the prior art, and the operation incision of the patient is inconvenient to use.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tendon expander, includes two expansion plates and handheld pole, two the equal vertical top that sets up at handheld pole of expansion plates, and the equal fixedly connected with L shape pole in opposite both sides of two expansion plates, the left and right sides upper end of handheld pole is provided with guiding mechanism, two L shape pole passes through guiding mechanism and handheld pole sliding connection, the cavity has been seted up to the inside of handheld pole, the inside middle part of cavity is fixed to be provided with the inflator of vertical setting, the inside slip of inflator is provided with the piston, the upper end fixedly connected with ejector pin of piston, the upper end of ejector pin extends to the top of inflator and fixedly connected with kicking block, the kicking block slides and sets up in the cavity, the upper end of kicking block is connected with two connecting rods through first pivot rotation, two the connecting rod passes the bar mouth of cavity left and right sides respectively and is connected with the lower extreme rotation of two L shape poles through the second axle pin, one side of keeping away from the kicking block on is provided with the relief valve, the pressure end of relief valve extends to the outside of handheld pole, the inflation mechanism that can aerify to the cavity still is provided with.

Preferably, the inflation mechanism comprises an air bag, an air inlet pipe, an air charging pipe and a reset pressing assembly, the air bag is arranged in the cavity and located at the lower side of the air cylinder, the upper side of the air bag is connected with the lower side of the air cylinder through the air charging pipe, the lower side of the air bag is fixedly connected with the air inlet pipe, the lower end of the air inlet pipe fixedly penetrates through the lower side wall of the cavity, one-way valves are arranged in the air inlet pipe and the air charging pipe, and the reset pressing assembly is arranged on the handheld rod and can press the air bag.

Preferably, the reset pressing assembly comprises a pressing block, two springs and two sliding blocks, a round opening aligned with the air bag is formed in the front side of the cavity, the pressing block is slidably arranged in the round opening, the rear side of the pressing block abuts against the air bag, two sliding grooves which are symmetrically distributed up and down are formed in the side wall of the round opening, the two sliding blocks are slidably arranged in the two sliding grooves respectively, and the two springs are arranged in the two sliding grooves respectively and fixedly connected with the rear sides of the two sliding blocks respectively.

Preferably, the guiding mechanism comprises two transverse plates and two guiding rods, wherein the transverse plates are fixedly connected with the upper ends of the left side and the right side of the handheld rod respectively, the upper sides of the transverse plates are provided with strip-shaped limiting openings respectively, the guiding rods are transversely and fixedly arranged in the two strip-shaped limiting openings respectively, the vertical parts of the L-shaped rods penetrate through the two strip-shaped limiting openings respectively, and the side walls of the two L-shaped rods are provided with guiding holes and are sleeved with the two guiding rods in a sliding mode respectively.

Preferably, the rear ends of two opposite sides of the expansion plates are inclined towards the middle.

The utility model has the technical effects and advantages that:

1. when the device is used, when the operation wound of a patient is expanded, the medical staff does not need to continuously press, only the handheld device is required to be stabilized, so that the operation can be stably held for a longer time, the hand is not easy to shake, a doctor can conveniently perform the operation, and the operation can be performed in an air bag inflation mode, so that the operation is avoided due to the fact that the operation wound of the patient is caused by mechanical hard expansion.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the front structure of the present utility model;

FIG. 2 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 3 is a schematic side sectional view of a hand held lever of the present utility model;

fig. 4 is a schematic top view of the present utility model.

In the figure: 1. an expansion plate; 2. a hand-held lever; 3. an L-shaped rod; 4. an air cylinder; 5. a piston; 6. a push rod; 7. a top block; 8. a connecting rod; 9. a pressure release valve; 10. an air bag; 11. an air inlet pipe; 12. an inflation tube; 13. pressing the blocks; 14. a spring; 15. a slide block; 16. a cross plate; 17. a guide rod.

Detailed Description

The utility model provides a tendon expander as shown in figures 1-4, which comprises two expansion plates 1 and a handheld rod 2, wherein the two expansion plates 1 are vertically arranged above the handheld rod 2, the opposite sides of the two expansion plates 1 are fixedly connected with L-shaped rods 3, the upper ends of the left side and the right side of the handheld rod 2 are respectively provided with guide mechanisms, the two L-shaped rods 3 are in sliding connection with the handheld rod 2 through the guide mechanisms, a cavity is formed in the handheld rod 2, the middle part in the cavity is fixedly provided with an air cylinder 4 which is vertically arranged, the interior of the air cylinder 4 is slidably provided with a piston 5, the upper end of the piston 5 is fixedly connected with a push rod 6, the upper end of the push rod 6 extends to the upper side of the air cylinder 4 and is fixedly connected with a top block 7, the top block 7 is slidably arranged in the cavity, the upper ends of the top block 7 are rotatably connected with two connecting rods 8 through first shaft pins, the two connecting rods 8 respectively penetrate through strip-shaped openings on the left side and the right side of the cavity and are respectively rotatably connected with the lower ends of the two L-shaped rods 3 through second shaft pins, one side of the 4 is provided with a valve 9, the air cylinder 9 is arranged on one side far away from the top block 7, the air cylinder 9 is fixedly arranged in the middle part of the cavity, when the upper end of the top block 6 is fixedly connected with a push rod 6, and the top block 7 is fixedly connected with a push rod 7, and can be fixedly connected with a top block 7, and the top block through the upper rod.

As shown in fig. 1 to 3, the inflation mechanism comprises an air bag 10, an air inlet pipe 11, an air charging pipe 12 and a reset pressing component, wherein the air bag 10 is arranged in the cavity and is positioned at the lower side of the air cylinder 4, the upper side of the air bag 10 is connected with the lower side of the air cylinder 4 through the air charging pipe 12, the lower side of the air bag 10 is fixedly connected with the air inlet pipe 11, the lower end of the air inlet pipe 11 fixedly penetrates through the lower side wall of the cavity, check valves are arranged in the air inlet pipe 11 and the air charging pipe 12, and the reset pressing component is arranged on the handheld rod 2 and can press the air bag 10.

Meanwhile, the reset pressing assembly comprises a pressing block 13, two springs 14 and two sliding blocks 15, a round opening aligned with the air bag 10 is formed in the front side of the cavity, the pressing block 13 is slidably arranged in the round opening, the rear side of the pressing block 13 abuts against the air bag 10, two sliding grooves which are symmetrically distributed up and down are formed in the side wall of the round opening, the two sliding blocks 15 are respectively arranged in the two sliding grooves in a sliding mode, the two springs 14 are respectively arranged in the two sliding grooves and are respectively fixedly connected with the rear sides of the two sliding blocks 15, the two springs 14 can continuously apply elastic force to the two sliding blocks 15, and accordingly the pressing block 13 after pressing can be jacked up and reset, and medical staff can press the medical staff conveniently next time.

As shown in fig. 2 and 4, the guiding mechanism comprises two transverse plates 16 and two guiding rods 17, the two transverse plates 16 are fixedly connected with the upper ends of the left side and the right side of the handheld rod 2 respectively, the upper sides of the two transverse plates 16 are provided with bar-shaped limiting openings, the two guiding rods 17 are respectively and transversely fixedly arranged in the two bar-shaped limiting openings, the vertical parts of the two L-shaped rods 3 respectively penetrate through the two bar-shaped limiting openings, the side walls of the two L-shaped rods 3 are provided with guiding holes and respectively and slidably sleeved with the two guiding rods 17, so that the movement of the two L-shaped rods 3 can be guided, and the movement of the two L-shaped rods 3 is more stable.

As shown in fig. 4, the rear ends of the opposite sides of the two expansion plates 1 are each inclined toward the middle, facilitating the insertion of the two expansion plates 1 into the surgical incision of the patient.

The working principle of the utility model is as follows: when the medical care personnel hold the handheld pole 2 in inserting patient's operation wound with two expansion plates 1, then repeatedly press pressing 13, press 13 repeatedly to extrude gasbag 10, make the gas in the gasbag 10 guide into inflator 4, thereby promote piston 5 and remove, piston 5 drives kicking block 7 through ejector pin 6 and remove, kicking block 7 drives two L shape poles 3 through two connecting rods 8 and reverse the removal, two L shape poles 3 drive two expansion plates 1 and reverse the removal, thereby realize the expansion to patient's operation wound, when the upper device is used, after patient's operation wound expansion finishes, medical care personnel need not continue to press, only need stable handheld device can, thereby can be for a longer time stable handheld, be difficult for the hand to rock, be convenient for the doctor to perform the operation, and expand through gasbag 10 inflation mode, thereby avoid mechanical hard expansion and cause more serious injury to patient's wound, the people of being convenient for use.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A tendon expander, characterized in that: the pressure release device comprises two expansion plates (1) and a handheld rod (2), wherein the two expansion plates (1) are vertically arranged above the handheld rod (2), the two opposite sides of the two expansion plates (1) are fixedly connected with L-shaped rods (3), the upper ends of the left side and the right side of the handheld rod (2) are provided with guide mechanisms, the two L-shaped rods (3) are in sliding connection with the handheld rod (2) through the guide mechanisms, a cavity is formed in the handheld rod (2), a vertically arranged air cylinder (4) is fixedly arranged in the middle of the cavity, a piston (5) is slidably arranged in the air cylinder (4), the upper end of the piston (5) is fixedly connected with a push rod (6), the upper end of the push rod (6) extends to the upper side of the air cylinder (4) and is fixedly connected with a push block (7), the upper ends of the push rod (7) are slidably arranged in the cavity, the upper ends of the push rod (7) are rotatably connected with two connecting rods (8) through first shaft pins, the two connecting rods (8) respectively penetrate through the left side of the cavity and penetrate through two strip-shaped pins (9) respectively, the two pressure release valves (9) are arranged at one sides of the push rod (9) which are far away from the upper ends of the handheld rod (2), the cavity is also provided with an inflation mechanism which can inflate the inflator (4).

2. A tendon expander as claimed in claim 1 and in which: the inflatable mechanism comprises an air bag (10), an air inlet pipe (11), an air charging pipe (12) and a reset pressing assembly, wherein the air bag (10) is arranged in the cavity and located at the lower side of the air cylinder (4), the upper side of the air bag (10) is connected with the lower side of the air cylinder (4) through the air charging pipe (12), the lower side of the air bag (10) is fixedly connected with the air inlet pipe (11), the lower end of the air inlet pipe (11) is fixedly connected with the lower side wall of the cavity, one-way valves are arranged in the air inlet pipe (11) and the air charging pipe (12), and the reset pressing assembly is arranged on the handheld rod (2) and can press the air bag (10).

3. A tendon expander as claimed in claim 2 and in which: the reset pressing assembly comprises a pressing block (13), two springs (14) and two sliding blocks (15), a round opening aligned with the air bag (10) is formed in the front side of the cavity, the pressing block (13) is slidably arranged in the round opening, the rear side of the pressing block (13) is propped against the air bag (10), two sliding grooves which are symmetrically distributed up and down are formed in the side wall of the round opening, the two sliding blocks (15) are respectively arranged in the two sliding grooves in a sliding mode, and the two springs (14) are respectively arranged in the two sliding grooves and are respectively fixedly connected with the rear sides of the two sliding blocks (15).

4. A tendon expander as claimed in claim 3 in which: the guide mechanism comprises two transverse plates (16) and two guide rods (17), wherein the two transverse plates (16) are fixedly connected with the upper ends of the left side and the right side of the handheld rod (2) respectively, the two transverse plates (16) are provided with strip-shaped limiting openings on the upper sides, the two guide rods (17) are transversely and fixedly arranged in the two strip-shaped limiting openings respectively, the two L-shaped rods (3) vertically penetrate through the two strip-shaped limiting openings respectively, and the side walls of the two L-shaped rods (3) are provided with guide holes and are sleeved with the two guide rods (17) in a sliding mode respectively.

5. A tendon expander as claimed in claim 4 and in which: the rear ends of two opposite sides of the expansion plates (1) are obliquely arranged towards the middle.