Multifunctional sternum retractor for cardiac surgery
By designing replaceable tooth and blade structures, combining positioning components and other functional modules, the problem of inflexible operation of the existing sternum retractor is solved, and higher flexibility and applicability are achieved to meet a variety of surgical needs. Maintain sterile conditions.
Patent Information
- Application Number
- CN202322523686.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-15
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-09-15
AI Technical Summary
The existing sternum retractor does not have the ability to replace the blade during use, which leads to inflexible operation and limits the effectiveness of the device.
A multifunctional cardiac surgical sternum retractor is designed, adopting replaceable teeth and blade structures, which can fix and replace teeth and installation rods through positioning components, support teeth and blades of different lengths and depths, and add light source. The functions of transparent sealed chamber and pre-installed bone wax improve the flexibility and sterility of the device.
It realizes flexible replacement of teeth and blades, improves the operating convenience and applicability of the device, meets different surgical needs, maintains sterile conditions, and enhances the flexibility and applicability of the device.
Smart Images
Figure CN222195040U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to a multifunctional sternal retractor for cardiac surgery. Background Art
[0002] Cardiac surgery is a department of the hospital and a branch of surgery, responsible for the treatment of heart disease. Surgical methods of cardiac surgery include bypass surgery, valve replacement, implantation of an artificial heart-lung machine, etc. A sternal retractor is required during surgery on the patient.
[0003] The sternal retractor is an instrument used in neurological and cardiovascular surgery to retract the sternum for ease of surgical operation. The sternal retractor consists of a retractor, a retractor bracket, and blades. The sternal retractor is made of high-strength material and can withstand the force during surgical operations to ensure the safety and stability of the operation; the retraction angle and height of the sternal retractor can be adjusted according to surgical needs to provide a better surgical field of view and operating space. The retraction bracket of the sternal retractor adopts a stable design to maintain the stability of the retractor and avoid shaking during the operation.
[0004] Chinese Patent Publication No.: discloses "A sternal retractor for thoracic surgery", including a shell, a motor is fixedly installed on the back of the inner wall of the shell, a controller is fixedly installed on the back of the inner wall of the shell and below the motor, a battery is fixedly installed on the back of the inner wall of the shell and above the motor, a display is fixedly installed on the front of the shell, and a switch button is fixedly installed on the front of the shell and below the display; the device controls the start of the motor through the switch button and the switch button, and the motor drives the second slide and the movable arm to move left and right through the lead screw and the gear sleeve, thereby achieving the effect of quickly adjusting the distance between the fixed arm and the movable arm, and at the same time, the opening force and distance of the retractor are respectively detected in real time through the pressure sensor and the distance sensor, and displayed on the display, so as to achieve the effect of simple and convenient use and multi-function.
[0005] In the above-mentioned prior art, the device controls the motor to start through a switch button and a switch button, and the motor drives the second slide and the movable arm to move left and right through the screw rod and the gear sleeve, thereby achieving the effect of quickly adjusting the distance between the fixed arm and the movable arm. At the same time, the pressure sensor and the distance sensor are used to detect the opening force and distance of the retractor in real time, and display them through the display, so as to achieve the effect of simple and convenient use and multi-function. However, the existing device does not have the ability to replace the retractor blades during use, and is subject to certain restrictions during use, resulting in the device being not flexible in operation, which makes the device subject to certain restrictions during use. Utility Model Content
[0006] The utility model aims to provide a multifunctional sternal retractor for cardiac surgery to solve the problem inconvenient replacement of existing retractor blades mentioned in the above background technology.
[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a multifunctional cardiac surgery sternal retractor, comprising a retractor body, the end of the retractor body is connected to a first mounting rod, and the outer side of the retractor body is provided with a second mounting rod, the outer sides of the first mounting rod and the second mounting rod are both provided with teeth, and one end of the teeth is connected to a blade, and the interior of the blade is provided with a positioning assembly;
[0008] The positioning assembly includes a cavity, and a fixing rod is arranged inside the cavity, the end of the fixing rod is connected to a pressure plate, a spring is arranged on the outside of the fixing rod, and a knob is arranged at the end of the fixing rod away from the pressure plate, a positioning pin is connected to one side of the pressure plate, and a positioning groove is opened inside the first mounting rod.
[0009] Preferably, the retractor body is fixedly connected to the first mounting rod, the second mounting rod is slidably located outside the retractor body, and the second mounting rod has the same structure as the first mounting rod.
[0010] Preferably, the teeth are slidably disposed outside the first mounting rod, and the teeth are fixedly connected to the blades.
[0011] Preferably, there are multiple types of teeth, and the teeth can meet different length specifications, and there are multiple types of blades, and the blades can meet different depth specifications.
[0012] Preferably, a light source is provided on one side of the tooth, and the light source is disposable and replaceable.
[0013] Preferably, a transparent sealed chamber is provided on one side of the tooth, and a motion camera is conveniently placed inside the transparent sealed chamber.
[0014] Preferably, pre-set bone wax is provided on one side of the blade, and the pre-set bone wax is a disposable item.
[0015] Preferably, the cavity is opened inside the tooth, and the fixing rod passes through the cavity and extends to its outside, the fixing rod is fixedly connected to the pressure plate, and the knob is fixedly connected to the fixing rod, the pressure plate is fixedly connected to the positioning pin, and the positioning pin matches the positioning groove.
[0016] Compared with the prior art, the beneficial effects achieved by the utility model are:
[0017] First, the utility model can assemble different types of teeth on the first mounting rod for retraction, which can be turned into single teeth or multiple teeth, or teeth of different depths, or light sources can be installed on the teeth for use as lamps, and pre-set bone wax can be added to the teeth for hemostasis. A transparent assembly module can also be made, which is a transparent box. If surgical video is required, a sports camera can be installed in it, and the box can be sealed to maintain sterility, making the device more flexible to use.
[0018] Second, the utility model sets a positioning component to facilitate the fixation between the tooth and the first mounting rod, thereby facilitating the replacement of different teeth. By pulling the knob, the knob drives the fixing rod to move, and the movement of the fixing rod drives the pressure plate to move, and the pressure plate drives the positioning pin to move, so that the positioning pin moves out of the positioning groove, thereby facilitating the tooth to slide on the outside of the first mounting rod, making the device more flexible and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the utility model;
[0020] Figure 2 This is a schematic diagram of the connection structure between the first mounting rod and the positioning assembly of the utility model;
[0021] Figure 3 This is a schematic structural diagram of a first embodiment of the tooth of the utility model;
[0022] Figure 4 This is a schematic structural diagram of a second embodiment of the tooth of the utility model;
[0023] Figure 5 This is a schematic structural diagram of a third embodiment of the tooth of the utility model;
[0024] Figure 6 This is a schematic structural diagram of a fourth embodiment of the tooth of the utility model;
[0025] Figure 7 It is a structural schematic diagram of the fifth embodiment of the tooth of the utility model.
[0026] In the figure: 1. retractor body; 2. first mounting rod; 3. second mounting rod; 4. teeth; 5. blades; 6. positioning assembly; 601. cavity; 602. fixing rod; 603. pressure plate; 604. spring; 605. knob; 606. positioning pin; 607. positioning groove; 7. light source; 8. transparent sealing chamber; 9. pre-placed bone wax. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] See also Figure 1-Figure 7 A multifunctional cardiac surgery sternal retractor comprises a retractor body 1, a first mounting rod 2 is connected to the end of the retractor body 1, and a second mounting rod 3 is arranged on the outside of the retractor body 1, teeth 4 are arranged on the outside of the first mounting rod 2 and the second mounting rod 3, and a blade 5 is connected to one end of the tooth 4, and a positioning component 6 is arranged inside the blade 5; the positioning component 6 comprises a cavity 601, and a fixing rod 602 is arranged inside the cavity 601, a pressure plate 603 is connected to the end of the fixing rod 602, a spring 604 is arranged on the outside of the fixing rod 602, and a knob 605 is arranged at one end of the fixing rod 602 away from the pressure plate 603, a positioning pin 606 is connected to one side of the pressure plate 603, and a positioning groove 607 is opened inside the first mounting rod 2.
[0029] Through the above technical scheme, the utility model assembles different types of teeth 4 on the first mounting rod 2 to pull apart, which can be turned into a single tooth or multiple teeth, or teeth 4 of different depths, or a light source 7 is installed on the tooth 4 as a lamp, and pre-set bone wax 9 is added to the tooth 4 for hemostasis. A transparent assembly module can also be made, which is a transparent box. If surgical video is required, a motion camera can be installed in it, and the box is sealed to maintain sterility, making the device more flexible to use; at the same time, through the positioning component 6, it is convenient to fix the tooth 4 to the first mounting rod 2, so that different teeth 4 can be replaced, and by pulling the knob 605, the knob 605 drives the fixed rod 602 to move, and the fixed rod 602 moves to drive the pressure plate 603 to move, and the pressure plate 603 drives the positioning pin 606 to move, so that the positioning pin 606 moves out from the inside of the positioning groove 607, so that the tooth 4 can slide on the outside of the first mounting rod 2, making the device more flexible and convenient to operate.
[0030] Specifically, the retractor body 1 is fixedly connected to the first mounting rod 2 , and the second mounting rod 3 is slidably located outside the retractor body 1 . The second mounting rod 3 has the same structure as the first mounting rod 2 .
[0031] Through the above technical solution, the second mounting rod 3 and the retractor body 1 can move relatively, and a structure that can be relatively fixed with the retractor body 1 is arranged inside the second mounting rod 3. This device is an existing device, and the position of the device can be flexibly adjusted during use.
[0032] Specifically, the teeth 4 are located outside the first mounting rod 2 and slide, and the teeth 4 and the blades 5 are fixedly connected.
[0033] Through the above technical solution, the set tooth 4 can be located outside the first mounting rod 2 and slide, making the movement of the tooth 4 more time-saving and labor-saving. The set tooth 4 is fixedly connected to the blade 5 to ensure that the movement of the tooth 4 can drive the blade 5 to move.
[0034] Specifically, there are many types of teeth 4, and the teeth 4 can meet different length specifications, and there are many types of blades 5, and the blades 5 can meet different depth specifications.
[0035] Through the above technical solution, the teeth 4 can be provided with structures of different lengths, so that the device can be applicable to more structures, and the blades 5 can be provided with different depth specifications, so that the device structure is more flexible.
[0036] Specifically, a light source 7 is provided on one side of the tooth 4, and the light source 7 is disposable and replaceable.
[0037] Through the above technical solution, the teeth 4 and the light source 7 can form a lighting device, and the lighting structure is a disposable item during use, which can ensure a better sterilization effect.
[0038] Specifically, a transparent sealed chamber 8 is provided on one side of the tooth 4, and the interior of the transparent sealed chamber 8 is convenient for placing a motion camera.
[0039] Through the above technical solution, a motion camera can be conveniently installed inside the transparent sealed chamber 8, and the patient's affected part can be better observed through the motion camera installed inside the transparent sealed chamber 8, thereby achieving a better sterile effect, and a chamber door is provided at the end of the transparent sealed chamber 8, and the chamber door and the transparent sealed chamber 8 are in a sealed state when closed, so that the motion camera inside the transparent sealed chamber 8 will not come into contact with external liquids, and the transparent sealed chamber 8 and the chamber door are connected by an existing locking device.
[0040] Specifically, one side of the blade 5 is provided with a pre-set bone wax 9, and the pre-set bone wax 9 is a disposable item.
[0041] Through the above technical solution, the blade 5 and the sternum contact piece are provided with pre-set bone wax, which can cooperate with the blade 5 to form a hemostatic blade structure.
[0042] When in use, the staff can flexibly replace different teeth 4 according to the needs of use, so that the device can be used in various situations. When it is necessary to replace different teeth 4, the knob 605 is pulled to make the knob 605 drive the fixing rod 602 to move, and the fixing rod 602 moves to drive the pressure plate 603 to move, so that the pressure plate 603 compresses the spring 604, and then the pressure plate 603 drives the positioning pin 606 to move into the cavity 601, so that the positioning pin 606 is separated from the positioning groove 607, and then the tooth 4 can be It slides on the outside of the first mounting rod 2, making it easy to disassemble the tooth 4. When installing a new tooth 4, just follow the above steps to make the tooth 4 slide on the outside of the first mounting rod 2, so that the positioning pin 606 moves to the position corresponding to the positioning groove 607. Under the elastic force of the spring 604, the spring 604 pushes the pressure plate 603 to move, so that the pressure plate 603 drives the positioning pin 606 to move, and the positioning pin 606 enters the positioning groove 607, thereby fixing the position of the tooth 4 and the first mounting rod 2.
[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A multifunctional cardiac surgery sternal retractor, comprising a retractor body (1), Features: The end of the retractor body (1) is connected to a first mounting rod (2), and a second mounting rod (3) is arranged on the outer side of the retractor body (1); teeth (4) are arranged on the outer sides of the first mounting rod (2) and the second mounting rod (3), and a blade (5) is connected to one end of the tooth (4); a positioning assembly (6) is arranged inside the blade (5); The positioning assembly (6) comprises a cavity (601), and a fixing rod (602) is arranged inside the cavity (601), the end of the fixing rod (602) is connected to a pressure plate (603), a spring (604) is arranged on the outside of the fixing rod (602), and a knob (605) is arranged at one end of the fixing rod (602) away from the pressure plate (603), a positioning pin (606) is connected to one side of the pressure plate (603), and a positioning groove (607) is opened inside the first mounting rod (2).
2. A multifunctional cardiac surgery sternal retractor according to claim 1, Features: The retractor body (1) is fixedly connected to the first mounting rod (2), and the second mounting rod (3) is slidably disposed outside the retractor body (1). The second mounting rod (3) has the same structure as the first mounting rod (2).
3. A multifunctional cardiac surgery sternal retractor according to claim 1, Features: The teeth (4) are located outside the first mounting rod (2) and slide, and the teeth (4) and the blades (5) are fixedly connected.
4. A multifunctional cardiac surgery sternal retractor according to claim 3, Features: There are many types of teeth (4), and the teeth (4) can meet different length specifications. There are many types of blades (5), and the blades (5) can meet different depth specifications.
5. The multifunctional cardiac surgery sternal retractor according to claim 3, Features: A light source (7) is provided on one side of the tooth (4), and the light source (7) is disposable and replaceable.
6. The multifunctional cardiac surgery sternal retractor according to claim 3, Features: A transparent sealed chamber (8) is provided on one side of the tooth (4), and a motion camera can be conveniently placed inside the transparent sealed chamber (8).
7. The multifunctional cardiac surgery sternal retractor according to claim 3, Features: One side of the blade (5) is provided with pre-set bone wax (9), and the pre-set bone wax (9) is a disposable item.
8. The multifunctional cardiac surgery sternal retractor according to claim 3, Features: The cavity (601) is opened inside the tooth (4), and the fixing rod (602) passes through the cavity (601) and extends to the outside thereof, the fixing rod (602) is fixedly connected to the pressure plate (603), and the knob (605) is fixedly connected to the fixing rod (602), the pressure plate (603) is fixedly connected to the positioning pin (606), and the positioning pin (606) matches the positioning groove (607).