A muscle expander for general surgery

Abstract

The present invention provides a muscle expander for general surgery, comprising: two symmetrically arranged arc-shaped skeletons, the arc-shaped skeletons comprising end connectors, a plurality of first connectors, and a second connector; the plurality of first connectors are symmetrically arranged about the second connector; each half of the first connectors are sequentially connected end to end to form a semi-arc chain, and the two ends of the semi-arc chain are respectively connected to the corresponding end connector and the second connector to form an arc-shaped skeleton; the second connector and the first connector are both provided with electric expansion components, the symmetrically arranged electric expansion components are arranged opposite to each other and form a pair of opening mechanisms; a plurality of locking components are respectively arranged at one end of the end connector and the first connector; two flip components are arranged between the two arc-shaped skeletons, and are respectively located at the two ends thereof to adjust the angle between the two arc-shaped skeletons; the present invention can be assembled according to the size of the patient's wound, and can be adjusted according to the shape of the wound to avoid tearing the patient's muscles.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a muscle expander for general surgery. Background Art

[0002] Surgical muscle dilators are used during surgery to help doctors expand and maintain visualization and operating space of the surgical site; they are usually designed as adjustable instruments that can provide the required expansion force and stability to ensure accuracy and safety during surgery; surgical muscle dilators may be used in various surgical procedures, especially in procedures that require a larger operating space or require accurate positioning.

[0003] Traditional surgical muscle expanders can be divided into splint-type muscle expanders, spring-type muscle expanders and spiral muscle expanders; splint-type muscle expander: the muscle tissue is clamped by the splint to keep the muscle in an expanded state, exposing the surgical area and making it easier for doctors to perform surgical operations; spring-type muscle expander: the spring principle is used to provide continuous expansion force to help doctors keep the surgical area open; spiral muscle expander: by rotating the spiral device, the surgical area can be gradually expanded to provide the required operating space.

[0004] However, the above three expanders are difficult to assemble according to the size of the wound. Different specifications of muscle expanders are used for wounds of different sizes, resulting in relatively many specifications of muscle expanders and a waste of cost. At the same time, the above three expanders are difficult to adjust according to the shape of the wound, which makes the muscle expansion operation complicated and easily causes muscle tearing.

[0005] Therefore, there is an urgent need for a muscle expander for general surgery that can be assembled according to the size of the patient's wound and can be adjusted according to the shape of the wound to avoid tearing the patient's muscles. Summary of the invention

[0006] The purpose of the present invention is to provide a muscle dilator for general surgery, aiming to solve the technical problems that traditional muscle dilators for surgery have poor versatility and cannot be applied to wounds of different sizes and shapes.

[0007] To achieve the above object, the present invention provides a muscle expander for general surgery, comprising:

[0008] Two arc-shaped frames are symmetrically arranged, wherein the arc-shaped frames include end connecting pieces, a plurality of first connecting pieces, and a second connecting piece located in the middle;

[0009] A plurality of the first connecting members are symmetrically arranged about the second connecting member;

[0010] The first connecting member of each half is detachably and rotatably connected head to tail in sequence to form a semi-arc chain, and the two ends of the semi-arc chain are detachably and rotatably connected to the corresponding end connecting member and the second connecting member to form the arc-shaped skeleton;

[0011] The second connecting member and the first connecting member are both provided with an electric expansion assembly for opening the wound, and the electric expansion assemblies on the first connecting member / the second connecting member that are symmetrically arranged are arranged opposite to each other and form a pair of opening mechanisms;

[0012] A plurality of locking members, respectively disposed at one end of the end connecting member and one end of the first connecting member, for operable locking or unlocking the rotational connection between the end connecting member, the first connecting member or the second connecting member;

[0013] Two flipping components are arranged between the two arc-shaped frames and are respectively located at two ends thereof to adjust the angle between the two arc-shaped frames.

[0014] As a further improvement of the above solution, the first connecting member includes a first connecting plate, a first connecting sleeve arranged at one end of the first connecting plate, and a first connecting column arranged at the other end of the first connecting plate; the first connecting sleeve has an opening, and the first connecting column and the first connecting sleeve are matched to allow adjacent first connecting members to be connected end to end;

[0015] The outer wall of the first connecting sleeve is provided with the locking piece, which realizes locking of the connecting column sleeved therein by tightening.

[0016] As a further improvement of the above solution, the second connecting member includes a second connecting plate and second connecting columns respectively arranged at both ends of the second connecting plate, which are respectively used to be sleeved in the first connecting sleeve of the corresponding first connecting member.

[0017] As a further improvement of the above solution, the end connector includes a bending plate and a second connecting sleeve arranged at one end of the bending plate, and the second connecting sleeve has an opening for the first connecting column of the adjacent first connector to be sleeved;

[0018] Preferably, the bending plate comprises a straight plate section and a bent plate section arranged at a preset angle with the straight plate section, the second connecting sleeve is arranged at the end of the bent plate section, and the flip assembly is arranged between the straight plate sections of the two symmetrically arranged end connectors;

[0019] The outer wall of the second connecting sleeve is provided with the locking piece, which realizes locking of the connecting column sleeved therein by tightening.

[0020] As a further improvement of the above scheme, the electric expansion assembly includes a first electric telescopic rod and an expansion plate, the telescopic end of the first electric telescopic rod passes through the first connecting member / the second connecting member and is connected to the expansion plate; the expansion plates on the symmetrically arranged first connecting member / the second connecting member are arranged relative to each other.

[0021] As a further improvement of the above solution, the electric expansion assembly further includes a tension sensor, which is arranged between the telescopic end of the first electric telescopic rod and the expansion plate and is used to detect the expansion tension.

[0022] As a further improvement of the above solution, the expansion plate is wedge-shaped with a preset curvature and is made of silicone material.

[0023] As a further improvement of the above solution, a convex column is integrally formed on the surface of one side of the expansion plate close to the tension sensor; the convex column is a conical structure;

[0024] As a further improvement of the above solution, the locking member is a set screw.

[0025] As a further improvement of the above solution, the flip assembly includes a second electric telescopic rod, a first connecting rod and a second connecting rod, and the two ends of the second electric telescopic rod are respectively connected to the other ends of the two end connecting members symmetrically arranged to provide flipping power;

[0026] One end of the first connecting rod is fixedly connected to the other end of one of the end connecting members, one end of the second connecting rod is fixedly connected to the other end of the other end connecting member, and the other end of the first connecting rod is hinged to the other end of the second connecting rod.

[0027] Since the present invention adopts the above technical solution, the beneficial effect of the present application is

[0028] 1. The present invention provides a muscle dilator for general surgery, which is detachably and rotatably connected head to tail through a plurality of first connecting members, and can form a semi-arc chain, and the two ends of the semi-arc chain are detachably and rotatably connected to the corresponding end connecting members and the second connecting members to form the arc-shaped skeleton; the second connecting member and a plurality of the second connecting members are each provided with an electric dilator, and the electric dilator assemblies on the symmetrically arranged first connecting members / the second connecting members are arranged opposite to each other, and form a pair of expansion mechanisms; that is, the surgical muscle dilator provided by the present invention includes a plurality of pairs of expansion mechanisms, and each pair of the expansion mechanisms is detachably connected, so that it can be assembled according to the length of the patient's wound, thereby improving the adaptability of the surgical muscle dilator; specifically, only part of the first connecting members and the arrangement need to be disassembled. The electric expansion component thereon can then be assembled with the remaining end connectors, the first connector, and the second connector and locked by the locking member. The operation is simple, and there is no need to equip the department with a variety of surgical muscle expanders of different specifications to accommodate patients with different wound lengths, thereby reducing the equipment cost of the department. In addition, the end connector, the first connector, and the second connector can also be rotatably connected. Therefore, the bending curvature of the semi-arc chain can be adjusted according to the different shapes of the patient's wound to achieve the purpose of adapting to different wound shapes. Specifically, before adjustment, it is necessary to release the locking member on the adjacent connector, and then adjust the bending angle of the semi-arc chain. After the adjustment is completed, the adjacent connector is locked by the locking member. This further improves the adaptability of the surgical muscle expander, and at the same time, the problem of tearing caused during wound expansion is avoided after the adaptability is increased.

[0029] In addition, a flip assembly is provided between the two end connectors, so that the expander can adjust the angle through the flip assembly, and the expansion mechanism can be rotated at different angles to expand the muscle;

[0030] Furthermore, the present invention has two symmetrically arranged arc-shaped frames, and the two arc-shaped frames form an arc that gradually bulges from both ends to the middle. An electric expansion component is provided on the paired second connecting plates and each paired first connecting plate, which facilitates the placement of the expander into the muscle for expansion, improves the convenience of expanding the muscle, and at the same time achieves the purpose of maximizing the expansion of the muscle in the middle of the wound, facilitates the increase of the expansion space, and solves the problem that traditional parallel expanders easily cause force tearing at both ends of the muscle.

[0031] 2. The present invention provides a muscle expander for general surgery, wherein a first connecting sleeve and a first connecting column that match each other are respectively arranged at both ends of the first connecting member, a second connecting column is respectively arranged at both ends of the second connecting member, and a second connecting sleeve is arranged at one end of the end connecting member; and openings are respectively arranged on the first connecting sleeve and the second connecting sleeve; with such an arrangement, the first connecting sleeve of the first connecting member is sleeved in the second connecting sleeve of the end connecting member to form a detachable and rotatable connection, the first connecting sleeves and the first connecting columns at both ends of the adjacent first connecting members are sleeved in sequence, and the first connecting column of the end first connecting member is sleeved with the second connecting column of the second connecting member. After the connection is completed and the arc is adjusted and adapted, it is locked by a locking member. The entire connection assembly is simple and quick. When adjustment is required, it is only necessary to loosen the locking member and rotate the corresponding connecting member, which is convenient for adjustment; this sequential sleeve connection method not only satisfies the stable connection between the various connecting members, but also facilitates adjustment based on the differences in wounds; so that the electric expander arranged thereon can be expanded well.

[0032] 3. The present invention provides a muscle dilator for general surgery, which is composed of a flip assembly consisting of a second electric telescopic rod, a first connecting rod and a second connecting rod, and the two ends of the second electric telescopic rod are rotatably installed between two symmetrical end connecting pieces, and the first connecting rod is fixed to one of the end connecting pieces, and the second connecting rod is fixed to the other end connecting piece, and the first connecting rod and the second connecting rod are hinged, and when the second electric telescopic rod is connected to an external power supply, the second electric telescopic rod adjusts the angle between the two end plates by telescoping, thereby achieving the purpose of the end connecting piece adjusting the angle of the expansion mechanism.

[0033] 4. The present invention provides a muscle expander for general surgery, wherein the electric expansion assembly comprises a first electric telescopic rod, an expansion plate and a tension sensor, wherein the telescopic end of the first electric telescopic rod passes through the first connecting piece / the second connecting piece and is connected to the expansion plate; the expansion plates on the symmetrically arranged first connecting piece / the second connecting piece are arranged opposite to each other;

[0034] The tension sensor is arranged between the telescopic end of the first electric telescopic rod and the expansion plate, and is used to detect the expansion tension. The setting of the tension sensor facilitates real-time detection of the muscle expansion tension when the first electric telescopic rod expands the muscle with the expansion plate, thereby preventing muscle tearing caused by excessive tension.

[0035] 5. The present invention provides a muscle expander for general surgery, in which the expansion plate is set to a wedge shape with a preset bending radius, and its material is selected from silicone material; and a convex column is integrally formed on the surface of the expansion plate close to the tension sensor, so that the expansion plate increases the friction with the muscle surface through the convex column, thereby reducing the sliding of the muscle on the surface of the expansion plate when the expansion plate expands the muscle. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0037] Figure 1 It is a three-dimensional schematic diagram of a muscle expander for general surgery disclosed by the present invention;

[0038] Figure 2 It is a schematic diagram of an explosion of a muscle dilator for general surgery disclosed by the present invention;

[0039] Figure 3 It is a partial three-dimensional schematic diagram of the connection between the end connector, the first connector, the flip assembly and the electric expansion assembly disclosed in the present invention;

[0040] Figure 4 It is a partial exploded schematic diagram of the connection between the end connector, the first connector, the flip assembly and the electric expansion assembly disclosed in the present invention;

[0041] Figure 5 It is a partial three-dimensional schematic diagram of the connection between the end connector and the flip assembly disclosed in the present invention;

[0042] Figure 6 It is a three-dimensional schematic diagram of the connection between the first connecting member and the electric expansion assembly disclosed in the present invention;

[0043] Figure 7 It is a three-dimensional schematic diagram of the connection between the second connecting member and the electric expansion assembly disclosed in the present invention.

[0044] Reference numerals:

[0045] 1. arc-shaped skeleton; 11. end connector; 111. bending plate; 112. second connecting sleeve; 12. first connector; 121. first connecting plate; 122. first connecting sleeve; 123. first connecting column; 13. second connector; 131. second connecting plate; 132. second connecting column;

[0046] 2. Electric expansion assembly; 21. First electric telescopic rod; 22. Expansion plate; 23. Tension sensor; 24. Boss; 3. Locking piece; 4. Flip assembly; 41. Second electric telescopic rod; 42. First connecting rod; 43. Second connecting rod; 5. Spreading mechanism.

[0047] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0050] In addition, in the present invention, the descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0051] Furthermore, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] See also Figure 1-Figure 4 The present invention provides a muscle dilator for general surgery, comprising:

[0053] Two arc-shaped frames 1 are symmetrically arranged, and the arc-shaped frames 1 include end connecting pieces 11, a plurality of first connecting pieces 12, and a second connecting piece 13 located in the middle;

[0054] A plurality of the first connecting members 12 are symmetrically arranged about the second connecting member 13;

[0055] The first connecting member 12 of each half is detachably and rotatably connected head to tail in sequence to form a semi-arc chain, and the two ends of the semi-arc chain are detachably and rotatably connected to the corresponding end connecting member 11 and the second connecting member 13 to form the arc-shaped skeleton 1;

[0056] The second connecting member 13 and the first connecting member 12 are both provided with an electric expansion assembly 2 for expanding the wound, and the electric expansion assemblies 2 on the first connecting member 12 / the second connecting member 13 are symmetrically arranged and arranged opposite to each other, and form a pair of expansion mechanisms 5;

[0057] A plurality of locking members 3 are respectively arranged at one end of the end connecting member 11 and one end of the first connecting member 12, and are used to operably lock or unlock the rotational connection between the end connecting member 11, the first connecting member 12 or the second connecting member 13; preferably, the locking member 3 is a set screw; correspondingly, threaded holes for the set screws to pass through are respectively opened at one end of the end connecting member 11 and one end of the first connecting member 12;

[0058] Two flipping components 4 are arranged between the two arc-shaped frames 1 and are respectively located at two ends thereof to adjust the angle between the two arc-shaped frames 1;

[0059] In the present invention, a plurality of the first connecting members 12 are sequentially detachably and rotatably connected end to end to form a semi-arc chain, and the two ends of the semi-arc chain are detachably and rotatably connected to the corresponding end connecting members 11 and the second connecting members 13 to form the arc-shaped skeleton 1; an electric expansion component 2 is provided on the second connecting member 13 and a plurality of the second connecting members 13, and the electric expansion components 2 on the symmetrically arranged first connecting members 12 / the second connecting members 13 are relatively arranged to form a pair of expansion mechanisms 5; that is, the surgical muscle expander provided by the present invention includes a plurality of pairs of expansion mechanisms 5, and each pair of the expansion mechanisms 5 are detachably connected, so that they can be assembled according to the length of the patient's wound, thereby improving the adaptability of the surgical muscle expander; specifically, only part of the first connecting member 12 and the electric expansion components arranged thereon need to be disassembled. The electric expansion component 2, and then assemble the remaining end connectors 11, the first connector 12 and the second connector 13 and lock them through the locking member 3. The operation is simple, and there is no need to equip the department with a variety of surgical muscle expanders of different specifications to adapt to patients with different wound lengths, thereby reducing the equipment cost of the department; in addition, the end connector 11, the first connector 12 and the second connector 13 can also be rotatably connected. Therefore, according to the different shapes of the patient's wounds, the bending curvature of the semi-arc chain can be adjusted to achieve the purpose of adapting to different wound shapes. Specifically, before adjustment, it is necessary to release the locking member 3 on the adjacent connectors, and then adjust the bending angle of the semi-arc chain. After the adjustment is completed, the adjacent connectors are locked by the locking member 3; the adaptability of the surgical muscle expander is further improved, and at the same time, the problem of tearing caused during wound expansion is avoided after the adaptability is increased;

[0060] In addition, a flip assembly 4 is provided between the two end connectors 11, so that the expander can adjust the angle through the flip assembly, and the expansion mechanism 5 can be rotated to different angles to expand the muscle;

[0061] Furthermore, the present invention has two symmetrically arranged arc-shaped skeletons 1, and the two arc-shaped skeletons 1 form an arc that gradually bulges from both ends to the middle. An electric expansion component 2 is provided on the paired second connecting plates 131 and each paired first connecting plate 121, which facilitates the placement of the expander into the muscle for expansion, improves the convenience of expanding the muscle, and at the same time achieves the purpose of maximizing the expansion of the muscle in the middle of the wound, facilitates the increase of the expansion space, and solves the problem that the traditional parallel expander easily causes the muscle to be torn by force at both ends.

[0062] As a preferred embodiment, see Figure 6 The first connecting member 12 includes a first connecting plate 121, a first connecting sleeve 122 disposed at one end of the first connecting plate 121, and a first connecting column 123 disposed at the other end of the first connecting plate 121; the first connecting sleeve 122 has an opening, and the first connecting column 123 and the first connecting sleeve 122 are matched and arranged to allow adjacent first connecting members 12 to be connected end to end;

[0063] See also Figure 7 The second connecting member 13 includes a second connecting plate 131 and second connecting columns 132 respectively arranged at both ends of the second connecting plate 131, which are respectively used to be sleeved in the first connecting sleeve 122 of the corresponding first connecting member 12.

[0064] See also Figure 5 The end connector 11 includes a bending plate 111 and a second connecting sleeve 112 disposed at one end of the bending plate 111, and the second connecting sleeve 112 has an opening for the first connecting column 123 of the adjacent first connector 12 to be sleeved;

[0065] Preferably, the bending plate 111 includes a straight plate section and a bent plate section arranged at a preset angle with the straight plate section, the second connecting sleeve 112 is arranged at the end of the bent plate section, and the flip assembly 4 is arranged between the straight plate sections of the two symmetrically arranged end connectors 11;

[0066] The outer wall of the first connecting sleeve 122 and the outer wall of the second connecting sleeve 112 are both provided with the locking member 3, and the connecting column sleeved therein is locked by tightening; preferably, the locking member 3 is a set screw, and correspondingly, the first connecting sleeve 122 and the second connecting sleeve 112 are respectively provided with a threaded hole for the set screw to pass through;

[0067] The cross-sections of the first connecting sleeve 122 and the second connecting sleeve 112 are "C" shaped. The "C" shaped connecting sleeves can be detachably and rotatably sleeved in the connecting posts of the adjacent connecting plates, and can also limit their rotation, so that the size of the rotation range between the adjacent connecting members depends on the size of the opening. The larger the opening, the larger the rotation range, and the smaller the opening, the smaller the rotation range.

[0068] In the present invention, a first connecting sleeve 122 and a first connecting column 123 that match each other are respectively provided at both ends of the first connecting member 12, and a second connecting column 132 is respectively provided at both ends of the second connecting member 13, and a second connecting sleeve 112 is provided at one end of the end connecting member 11; and openings are respectively provided on the first connecting sleeve 122 and the second connecting sleeve 112; in this way, the first connecting sleeve 122 of the first connecting member 12 is sleeved in the second connecting sleeve 112 of the end connecting member 11 to form a detachable and rotatable connection, and the first and tail ends of the adjacent first connecting members 12 are connected. The first connecting sleeve 122 and the first connecting column 123 at the end are sequentially socketed, and the first connecting column 123 of the first connecting member 12 at the end is socketed with the second connecting column 132 of the second connecting member 13. After the connection is completed, and the arc is adjusted and adapted, it is locked by the locking member 3. The entire connection assembly is simple and fast. When adjustment is required, only the locking member 3 needs to be loosened and the corresponding connecting member needs to be rotated, which is convenient for adjustment. This method of sequential socketing not only satisfies the stable connection between the various connecting members, but also facilitates adjustment based on the differences in wounds; it enables the electric expander arranged thereon to expand well.

[0069] As a preferred embodiment, see Figure 6 and Figure 7 The electric expansion assembly 2 includes a first electric telescopic rod 21 and an expansion plate 22. The telescopic end of the first electric telescopic rod 21 passes through the first connecting member 12 / the second connecting member 13 and is connected to the expansion plate 22. The expansion plates 22 on the first connecting member 12 / the second connecting member 13 are symmetrically arranged and arranged opposite to each other. The electric expansion assembly 2 also includes a tension sensor 23, which is arranged between the telescopic end of the first electric telescopic rod 21 and the expansion plate 22 and is used to detect the expansion tension.

[0070] The tension sensor 23 is arranged between the telescopic end of the first electric telescopic rod 21 and the expansion plate 22, so that the first electric telescopic rod 21 can expand the muscle with the expansion plate 22. When the muscle expands, the tension sensor 23 detects the tension exerted on the expansion plate 22, thereby preventing muscle tearing caused by excessive tension.

[0071] As a preferred embodiment, the expansion plate 22 is wedge-shaped with a preset curvature and is made of silicone material; the two expansion plates 22 in each pair of opening mechanisms 5 are arranged back to back;

[0072] A protrusion 24 is integrally formed on one side of the expansion plate 22 near the tension sensor 23; the protrusion 24 is a conical structure; the expansion plate 22 increases the friction with the muscle surface through the protrusion 24, thereby reducing the sliding of the muscle on the surface of the expansion plate 22 when the expansion plate 22 expands the muscle.

[0073] As a preferred embodiment, see Figure 1 and Figure 5 The flip assembly 4 includes a second electric telescopic rod 41, a first connecting rod 42 and a second connecting rod 43, and the two ends of the second electric telescopic rod 41 are respectively connected to the other ends of the two end connecting members 11 symmetrically arranged to provide flipping power;

[0074] One end of the first connecting rod 42 is fixedly connected to the other end of one of the end connecting members 11, one end of the second connecting rod 43 is fixedly connected to the other end of the other end connecting member 11, and the other end of the first connecting rod 42 is hinged to the other end of the second connecting rod 43;

[0075] In the present invention, through the flip assembly 4 composed of the second electric telescopic rod 41, the first connecting rod 42 and the second connecting rod 43, the two ends of the second electric telescopic rod 41 are rotatably installed between two symmetrical end connecting pieces 11, and the first connecting rod 42 is fixed to one of the end connecting pieces 11, and the second connecting rod 43 is fixed to the other end connecting piece 11, and the first connecting rod 42 and the second connecting rod 43 are hinged. When the second electric telescopic rod 41 is connected to an external power supply, the second electric telescopic rod 41 adjusts the angle between the two end plates by telescoping, thereby achieving the purpose of the end connecting piece 11 adjusting the angle of the spreading mechanism 5, further improving the adaptability of the muscle expander.

[0076] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A muscle expander for general surgery, characterized in that: include: Two arc-shaped frames are symmetrically arranged, wherein the arc-shaped frames include end connecting pieces, a plurality of first connecting pieces, and a second connecting piece located in the middle; A plurality of the first connecting members are symmetrically arranged about the second connecting member; The first connecting member of each half is detachably and rotatably connected end to end in sequence to form a semi-arc chain, and the two ends of the semi-arc chain are detachably and rotatably connected to the corresponding end connecting member and the second connecting member to form the arc-shaped skeleton; the first connecting member includes a first connecting plate, a first connecting sleeve arranged at one end of the first connecting plate, and a first connecting column arranged at the other end of the first connecting plate; the first connecting sleeve has an opening, and the first connecting column and the first connecting sleeve are matched to allow adjacent first connecting members to be connected end to end; The second connecting member comprises a second connecting plate and second connecting posts respectively arranged at two ends of the second connecting plate, and respectively used to be sleeved in the first connecting sleeve of the corresponding first connecting member; The second connecting member and the first connecting member are both provided with an electric expansion assembly for opening the wound, and the electric expansion assemblies on the symmetrically arranged first connecting member and the symmetrically arranged second connecting member are respectively arranged opposite to each other and respectively constitute a pair of opening mechanisms; A plurality of locking members, respectively disposed at one end of the end connecting member and one end of the first connecting member, for operable locking or unlocking the rotational connection between the end connecting member and the first connecting member, between adjacent first connecting members, and between the first connecting member and the second connecting member; the locking member is disposed on the outer wall of the first connecting sleeve, and the locking of the connecting column sleeved therein is realized by tightening; Two flipping components are arranged between the two arc-shaped frames and are respectively located at two ends thereof to adjust the angle between the two arc-shaped frames; The flip assembly includes a second electric telescopic rod, a first connecting rod and a second connecting rod, and the two ends of the second electric telescopic rod are respectively connected to the other ends of the two end connecting members symmetrically arranged to provide flipping power; One end of the first connecting rod is fixedly connected to the other end of one of the end connecting members, one end of the second connecting rod is fixedly connected to the other end of the other end connecting member, and the other end of the first connecting rod is hinged to the other end of the second connecting rod.

2. A muscle expander for general surgery according to claim 1, characterized in that: The end connector includes a bending plate and a second connecting sleeve arranged at one end of the bending plate, and the second connecting sleeve has an opening for the first connecting column of the adjacent first connector to be sleeved; The outer wall of the second connecting sleeve is provided with the locking piece, which realizes locking of the connecting column sleeved therein by tightening.

3. A muscle expander for general surgery according to claim 1 or 2, characterized in that: The electric expansion assembly also includes a first electric telescopic rod and an expansion plate. The telescopic end of the first electric telescopic rod passes through the first connecting piece or the second connecting piece and is connected to the expansion plate. The expansion plates on the symmetrically arranged first connecting piece or the second connecting piece are arranged opposite to each other.

4. A muscle expander for general surgery according to claim 3, characterized in that: The electric expansion assembly further includes a tension sensor, which is disposed between the telescopic end of the first electric telescopic rod and the expansion plate and is used to detect the expansion tension.

5. A muscle expander for general surgery according to claim 3, characterized in that: The expansion plate is in the shape of a wedge bent at a preset arc and is made of silicone material.

6. A muscle expander for general surgery according to claim 4, characterized in that: A convex column is integrally formed on a surface of one side of the expansion plate close to the tension sensor; the convex column is a conical structure.

7. A muscle expander for general surgery according to claim 1 or 2, characterized in that: The locking piece is a set screw.

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