Novel peripheral nerve and blood vessel protection device

Abstract

The utility model discloses a novel peripheral nerve and blood vessel protection device, and particularly relates to the field of nerve and blood vessel protection for osteotomy, the novel peripheral nerve and blood vessel protection device comprises a metal sheet, first limiting grooves are symmetrically formed in the middles of the two ends of the metal sheet, a handle rod is fixedly connected to one side of the top of the metal sheet, and a barrier strip is fixedly connected to the other side of the top of the metal sheet. According to the utility model, the metal sheet is inserted into the gap between the osteotomy bone surface and the peripheral blood vessels and nerves, so that the osteotomy bone surface can be separated from the peripheral blood vessels and nerves, and after the osteotomy tools such as a fret saw, an electric swing saw and the like cut off the bone surface, the metal sheet is touched firstly and osteotomy is stopped; by means of the first limiting groove, an osteotomy fret saw can be conveniently inserted, so that the position of the osteotomy fret saw is kept stable, the position of an osteotomy surface is not prone to sliding in the osteotomy process, and accurate osteotomy is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of neurovascular protection for osteotomy surgery, and more specifically, to a novel peripheral neurovascular protection device. Background Art

[0002] The osteotomy operation is to fully expose the bone segment of the limb bone osteotomy plane, and then introduce a wire saw to perform the osteotomy. After the osteotomy is completed, the diseased long bone is moved out of the surgical field. During the osteotomy operation in orthopedic surgery, it is necessary to avoid damaging important tissue structures such as peripheral nerves and blood vessels. In the past, after exposing the osteotomy bone surface, instruments such as retractors and periosteal strippers were often used to pull or block and protect peripheral nerves, blood vessels, muscles and other structures to prevent them from being damaged by osteotomy instruments (wire saws, electric oscillating saws, etc.);

[0003] However, retractors, periosteal strippers, etc. require assistants to use appropriate force to maintain traction or pushing. If the force is too great, it is easy to cause traction injuries to important structures such as blood vessels and nerves. If the force is too small, it is difficult to reveal the field of vision, the osteotomy operation cannot be performed or it is easy to damage surrounding structures. In addition, the assistant needs to maintain a stable traction or pushing force during the osteotomy operation. If it is accidentally displaced or detached during the osteotomy process, it is very easy for the osteotomy operation to damage important surrounding structures. Therefore, a new peripheral neurovascular protection device is proposed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a novel peripheral nerve and blood vessel protection device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a novel peripheral neurovascular protection device, comprising a metal sheet, wherein first limiting grooves are symmetrically formed in the middle of both ends of the metal sheet, a handle rod is fixedly connected to one side of the top of the metal sheet, and a retaining bar is fixedly connected to the other side, and a limiting ring is fixedly sleeved on the middle of the handle rod;

[0006] A second limiting groove is provided on the top of the metal sheet, and a convex strip is fixedly connected to the top of the metal sheet.

[0007] Preferably, the metal sheet and the handle rod are fixedly connected by welding, and the surface corners of the metal sheet are all equipped with arc-shaped chamfered structures.

[0008] Preferably, the handle bar and the baffle are arranged on opposite sides of the two first limiting grooves, and the maximum distance between the handle bar and the baffle is smaller than the minimum distance between the two first limiting grooves.

[0009] Preferably, a side wall of the baffle is on the same horizontal plane as a side wall of the inner cavity of the first limiting groove, the cross-section of the baffle is set to be a triangle, and the top corner of the baffle is set to be an arc structure.

[0010] Preferably, the cross-sectional shapes of the second limiting grooves and the convex strips are both set to be arc-shaped structures, and the convex strips are arranged on opposite sides of the two second limiting grooves.

[0011] Preferably, the outer surface of the handle rod is provided with an anti-slip groove, and the anti-slip groove is located at the top of the limiting ring.

[0012] The technical effects and advantages of this utility model are:

[0013] 1. The utility model can separate the osteotomy bone surface from the surrounding blood vessels and nerves by inserting the metal sheet into the gap between the osteotomy bone surface and the surrounding blood vessels and nerves. When the osteotomy tool wire saw, electric oscillating saw, etc. cuts the bone surface, it will first hit the metal sheet and stop osteotomy, thereby avoiding damage to nerves and blood vessel structures during the osteotomy operation. There is no need to excessively pull the nerves and blood vessels to cause damage, and there is no risk of pulling or pushing injuries. The first limiting groove can facilitate the insertion of the osteotomy wire saw, thereby maintaining the position of the osteotomy wire saw stable. The osteotomy surface is not likely to slide during the osteotomy process, achieving precise osteotomy, avoiding contact between blood vessels and nerves and the wire saw inside the first limiting groove, and playing a role of blocking and limiting protection.

[0014] 2. The utility model provides a handle rod so that the assistant only needs to use one hand to hold and maintain the stability of the handle to fix the osteotomy surface during the osteotomy process. The cooperation of the provided blocking bar, the second limiting groove and the convex bar can limit the nerves and blood vessels located on the top of the metal sheet, thereby improving the stability of the nerves and blood vessels, preventing them from sliding from the side of the metal sheet, and will not damage the nerves and blood vessels. It is convenient to insert and remove the metal sheet, and the limiting ring can limit the position of the handheld hand, thereby improving the handheld use effect.

[0015] In summary, through the mutual influence of the above-mentioned multiple effects, the osteotomy bone surface can be conveniently separated from the surrounding blood vessels and nerves, the use of the osteotomy wire saw can be limited, and it is convenient for the assistant to hold and fix it for use, avoiding damage to nerves and blood vessel structures during the osteotomy operation. There is no need to excessively pull the nerves and blood vessels to cause damage, and there is no risk of traction or pushing injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0018] Figure 3 It is a side view structural diagram of the utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the utility model when viewed from above.

[0020] The accompanying drawings are marked as follows: 1. metal sheet; 2. first limiting groove; 3. handle bar; 4. limiting ring; 5. blocking bar; 6. second limiting groove; 7. convex strip. DETAILED DESCRIPTION

[0021] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] As attached Figure 1-4 The novel peripheral nerve and blood vessel protection device shown in the figure includes a metal sheet 1. By inserting the metal sheet 1 into the gap between the osteotomy bone surface and the surrounding blood vessels and nerves, the osteotomy bone surface can be separated from the surrounding blood vessels and nerves. When the osteotomy tool wire saw, electric oscillating saw, etc. cuts the bone surface, it will first hit the metal sheet 1 and stop osteotomy, thereby avoiding damage to the nerve and blood vessel structure during the osteotomy operation. There is no need to excessively pull the nerves and blood vessels to cause damage, and there is no risk of pulling or pushing injuries. The middle part of both ends of the metal sheet 1 is symmetrically provided with a first limiting groove 2, which can facilitate the insertion of the osteotomy wire saw, thereby maintaining the stable position of the osteotomy wire saw, and it is not easy to When the osteotomy surface slides, precise osteotomy is achieved. One side of the top of the metal sheet 1 is fixedly connected to a handle rod 3. The assistant only needs to use one hand to hold and maintain the stability of the handle to fix the osteotomy surface during the osteotomy process. The other side is fixedly connected to a blocking bar 5, which can limit the nerves and blood vessels at the top of the metal sheet 1 to prevent them from sliding down on the side of the osteotomy and affecting the protective effect. The middle fixed sleeve of the handle rod 3 is provided with a limiting ring 4, which can limit the position of the handheld device to prevent the assistant's palm from being too close to the metal sheet 1, affecting the use effect, and can facilitate the palm to generate a fixing force on the metal sheet 1 downward, making it convenient for fixed use;

[0023] A second limiting groove 6 is provided on the top of the metal sheet 1, and a convex strip 7 is fixedly connected to the top of the metal sheet 1, which can limit the nerves and blood vessels located on the top of the metal sheet 1 to prevent them from sliding on the side of the osteotomy and affecting the protective effect.

[0024] As attached Figure 1-4As shown, the metal sheet 1 and the handle rod 3 are welded and fixedly connected, and the surface corners of the metal sheet 1 are equipped with an arc chamfer structure to improve the strength of the connection between the metal sheet 1 and the handle rod 3, and avoid the metal sheet 1 from scratching the tissue at the patient's osteotomy site, thereby improving the use effect.

[0025] As attached Figure 1-4 As shown, the handle rod 3 and the baffle 5 are arranged on opposite sides of the two first limiting grooves 2, and the maximum distance between the handle rod 3 and the baffle 5 is less than the minimum distance between the two first limiting grooves 2. The handle rod 3 and the baffle 5 can limit the nerves and blood vessels located on the top of the metal sheet 1, and avoid the blood vessels and nerves from contacting the wire saw inside the first limiting groove 2, thereby playing a role of blocking and limiting protection.

[0026] As attached Figure 1-4 As shown, one side wall of the baffle 5 is on the same horizontal plane as one side wall of the inner cavity of the first limiting groove 2. The cross-sectional shape of the baffle 5 is set to a triangle, and the top corner of the baffle 5 is set to an arc structure. The baffle 5 is used to limit the line distance in the middle of the first limiting groove 2, and does not affect the insertion of the metal sheet 1, so that the blood vessels, nerves and osteotomy bone surface are located on both sides of the metal sheet 1, which is convenient for use.

[0027] As attached Figure 1-4 As shown, the cross-sectional shapes of the second limiting grooves 6 and the ridges 7 are both set to arc structures, and the ridges 7 are set on the opposite side of the two second limiting grooves 6. The second limiting grooves 6 and the ridges 7 can be used to limit the nerves and blood vessels, thereby improving the stability of the nerves and blood vessels and preventing them from sliding from the side of the metal sheet 1 without causing damage to the nerves and blood vessels, making it convenient to insert and remove the metal sheet 1.

[0028] As attached Figure 1-4 As shown, the outer surface of the handle rod 3 is provided with anti-slip grooves, which are located at the top of the limiting ring 4. The anti-slip grooves improve the hand-holding effect, and the limiting ring 4 limits the hand-holding position.

[0029] The working principle of the utility model is as follows: when in use, one only needs to hold the top end of the handle rod 3 and insert the metal sheet 1 into the gap between the osteotomy bone surface and the surrounding blood vessels and nerves to separate the osteotomy bone surface from the surrounding blood vessels and nerves. When the osteotomy tool wire saw, electric oscillating saw, etc. cuts the bone surface, it will first hit the metal sheet 1 and stop the osteotomy, thereby avoiding damage to the nerve and blood vessel structure during the osteotomy operation.

[0030] The nerves and blood vessels on one side of the metal sheet 1 are limited by the blocking bar 5, and the nerves and blood vessels are prevented from sliding off from one end of the metal sheet 1 by the second limiting groove 6 and the convex strip 7, which plays a limiting role. The osteotomy wire saw can be easily inserted through the first limiting groove 2, thereby maintaining the stable position of the osteotomy wire saw. The osteotomy surface is not likely to slide during the osteotomy process, thereby achieving precise osteotomy.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel peripheral nerve and blood vessel protection device, comprising a metal sheet (1), characterized in that: The metal sheet (1) is symmetrically provided with first limiting grooves (2) at the middle of both ends; a handle rod (3) is fixedly connected to one side of the top of the metal sheet (1) and a retaining bar (5) is fixedly connected to the other side; a limiting ring (4) is fixedly sleeved on the middle of the handle rod (3); A second limiting groove (6) is provided on the top of the metal sheet (1), and a convex strip (7) is fixedly connected to the top of the metal sheet (1).

2. The novel peripheral nerve and blood vessel protection device according to claim 1, characterized in that: The metal sheet (1) and the handle rod (3) are fixedly connected by welding, and the surface corners of the metal sheet (1) are all equipped with an arc-shaped chamfered structure.

3. The novel peripheral nerve and blood vessel protection device according to claim 1, characterized in that: The handle bar (3) and the baffle (5) are arranged on opposite sides of the two first limiting grooves (2), and the maximum distance between the handle bar (3) and the baffle (5) is smaller than the minimum distance between the two first limiting grooves (2).

4. The novel peripheral nerve and blood vessel protection device according to claim 1, characterized in that: A side wall of the baffle (5) is on the same horizontal plane as a side wall of the inner cavity of the first limiting groove (2); the cross-sectional shape of the baffle (5) is set to be a triangle; and the top corner of the baffle (5) is set to be an arc structure.

5. The novel peripheral nerve and blood vessel protection device according to claim 1 is characterized in that: The cross-sectional shapes of the second limiting grooves (6) and the convex strips (7) are both arranged as arc-shaped structures, and the convex strips (7) are arranged on opposite sides of the two second limiting grooves (6).

6. The novel peripheral nerve and blood vessel protection device according to claim 1, characterized in that: The outer surface of the handle bar (3) is provided with anti-slip grooves, and the anti-slip grooves are located on the top of the limiting ring (4).

7. The novel peripheral nerve and blood vessel protection device according to claim 1, characterized in that: The two end walls of the metal sheet (1) are configured as arc-shaped structures, and the handle bar (3) and the metal sheet (1) are made of the same material.

8. The novel peripheral nerve and blood vessel protection device according to claim 1, characterized in that: The convex strip (7) and the second limiting groove (6) form a wave-shaped structure, and one end surface of the convex strip (7) is smoothly connected to a side wall of the blocking strip (5).

9. The novel peripheral nerve and blood vessel protection device according to claim 1, characterized in that: The material of the convex strip (7) and the blocking strip (5) is set to be elastic rubber material, and the second limiting groove (6) and the side wall of the metal sheet (1) close to the second limiting groove (6) are both provided with a rubber protective layer.

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