Gun-type bush-hook for treating stenosing tenosynovitis

Abstract

The invention discloses a gun-type bush-hook for treating stenosing tenosynovitis, and relates to the technical field of medical instruments, the gun-type bush-hook comprises a handle part, a needle head part and a bush-hook part, the handle part and the needle head part are hollow and symmetrically arranged, a clamping mechanism is arranged on the inner side of the handle part, and the end, away from the bush-hook part, of the needle head part is connected with an inserting pipe; the end, inserted into the handle part, of the inserting pipe and the clamping mechanism are fixedly installed. A vibration generating mechanism is arranged on the inner side of the handle part, the vibration generating mechanism and the inner side of the needle head part are coaxially installed, suction holes are formed in the side, close to the bush-hook part, of the needle head part, the suction holes are symmetrically formed in the two sides of the needle head part, the bush-hook part is arranged in a triangular shape, and a cutter section and a hook section are continuously arranged on the inclined edge of the bush-hook part. An effusion extraction mechanism is further arranged on the inner side of the handle part; the needle head part is controlled to vibrate through the vibration generating mechanism, multiple treatment modes of the tendon sheath part are achieved in cooperation with the hook section and the cutter section, and the treatment effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a gun-type hook knife for treating stenosing tenosynovitis. Background Art

[0002] Stenosing tenosynovitis is a common disease. It is mainly caused by chronic aseptic inflammatory changes in the tendon sheath due to mechanical friction. Common inducing factors include long-term excessive hand activity, such as frequent use of mobile phones and computers, and long-term manual labor. Its main symptoms are local pain and tenderness, which may be accompanied by limited finger movement.

[0003] For patients with stenosing tenosynovitis with more severe symptoms, a needle knife surgery is needed to cut open the tendon sheath and decompress it. Traditional needle knife surgery requires hospitalization, has large incisions, and postoperative scars are prone to recurrence. Summary of the invention

[0004] The object of the present invention is to provide a gun-type hook knife for treating stenosing tenosynovitis to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A gun-type hook knife for treating stenosing tenosynovitis comprises a handle, a needle head and a hook knife part. The handle and the needle head are hollow and symmetrically arranged. The handle and the two sides of the needle head are connected by a snap. A clamping mechanism is arranged on the inner side of the handle. The end of the needle head away from the hook knife part is connected to a plug-in tube. The plug-in tube is inserted between one end of the handle and the clamping mechanism for fixed installation.

[0006] A vibration generating mechanism is arranged on the inner side of the handle, and the vibration generating mechanism is coaxially installed with the inner side of the needle head. A suction hole is arranged on the side of the needle head close to the hook knife part, and the suction holes are symmetrically arranged on both sides of the needle head. The hook knife part is arranged in a triangular shape, and the inclined edge of the hook knife part is continuously provided with a cutting knife section and a curved hook section. A fluid extraction mechanism is also arranged on the inner side of the handle.

[0007] As a further solution of the present invention: the clamping mechanism includes a semicircular frame symmetrically arranged on the inner side of the handle, a connecting plate is arranged between the semicircular frames, a fixing bolt is arranged between the connecting plate and the handle, the semicircular frame is fixed to the handle through the connecting plate and the fixing bolt, an arc-shaped clamping frame is arranged on the inner side of the semicircular frame, the arc-shaped clamping frame and the semicircular frame are plugged into each other through a plug-in column, a supporting spring is sleeved on the outer side of the plug-in column, connecting rods are arranged at both ends of the arc-shaped clamping frame, an I-shaped frame is arranged between the connecting rods, and the frame structure composed of the I-shaped frame and the connecting rods wraps the semicircular frame in the other side of the handle, a pressing block is arranged on the side of the I-shaped frame facing the handle, and a groove is arranged at the position of the handle corresponding to the pressing block.

[0008] As a further solution of the present invention: a rubber ring is provided at the end of the plug-in tube, and a plurality of groups of arc-shaped grooves are provided on the inner side of the arc-shaped clamping frame, and the arc-shaped grooves cooperate with the rubber ring.

[0009] As a further scheme of the present invention: the vibration generating mechanism includes a fixing frame arranged on the inner side of the handle, the fixing frames are symmetrically arranged, and rubber blocks are arranged between the fixing frames, a steel wire rod is inserted in the rubber block, one end of the steel wire rod is inserted into the plug tube and extends to the needle head, a rubber sleeve is arranged on the end of the plug tube, a striking plate is arranged at the end of the steel wire rod away from the needle head, a mounting plate is arranged on the inner side of the handle, a rotating shaft is rotatably installed on the mounting plate, the upper end of the rotating shaft passes through the handle and is connected to a lever, the lever is arranged in contact with the surface of the handle, the lower end of the rotating shaft is connected to a driven rod, a connecting spring is arranged between the driven rod and the handle, a knocking ball is arranged on the side of the driven rod away from the connecting spring, and the connecting spring and the knocking ball are respectively arranged on both sides of the striking plate.

[0010] As a further solution of the present invention: a vibrating ball is provided at one end of the steel wire rod located at the needle head, the length of the steel wire rod on the side of the fixing frame facing the needle head is greater than the length on the side facing the handle, and the steel wire rod is an elastic steel wire.

[0011] As a further solution of the present invention: the fluid extraction mechanism includes a negative pressure chamber arranged on the inner side of the handle, a piston plate is arranged on the inner side of the negative pressure chamber, the piston plate is connected to a plug-in rod, the end of the plug-in rod is connected to a pull rope, the pull rope is extended to the port of the handle, and a guide tube is connected to the rubber sleeve, the guide tube is connected to the negative pressure chamber, and the guide tube extends to the inner side of the negative pressure chamber.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The needle head is locked and installed with the plug tube and the clamping mechanism. During installation, the needle head is inserted from the port of the handle with the plug tube. When the needle head is blocked, the thumb and index finger of the other hand press the pressing blocks on both sides of the handle to separate the arc-shaped clamping frames on the inner side of the semicircular frame. At this time, the needle head is pushed inward and then the pressing blocks are released, so that the arc-shaped clamping frame clamps and fixes the end of the plug tube.

[0013] (2) By setting a lever on the handle, when the lever is turned, the driven rod will be driven to rotate around the rotating axis, stretching the connecting spring. After the lever is released, the driven rod carries the striking ball and hits the striking plate, causing the steel wire rod to vibrate. The other end of the steel wire rod will also vibrate synchronously and hit the inner side of the needle head, thereby driving the needle head to vibrate, achieving the therapeutic effect of relaxing the tendon sheath.

[0014] (3) When the needle head is inserted into the tendon sheath, hold the handle with one hand and pull the pull rope with the other hand to generate negative pressure in the negative pressure chamber. If there is fluid accumulation in the tendon sheath, the suction hole will be used to guide the accumulated fluid into the insertion tube and the drainage tube, and finally drain it into the negative pressure chamber to prevent the accumulated fluid from overflowing and contaminating other parts or instruments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the internal structure of the handle in the present invention.

[0017] Figure 3 It is a structural schematic diagram of the accumulated liquid extraction mechanism in the present invention.

[0018] Figure 4 It is a schematic diagram of the installation structure of the plug-in tube and the steel wire rod in the present invention.

[0019] Figure 5 It is a schematic diagram of the locking structure of the plug-in tube in the present invention.

[0020] Figure 6 It is a schematic diagram of the installation of the arc-shaped clamping frame in the present invention.

[0021] Figure 7 It is a structural schematic diagram of the vibration generating mechanism in the present invention.

[0022] Figure 8 It is a schematic diagram of the internal structure of the needle head in the present invention.

[0023] Fig. 9 It is a schematic diagram of the structure of the suction hole of the needle head in the present invention.

[0024] Fig.10 It is a structural schematic diagram of the hook knife part in the present invention.

[0025] In the figure: 1, handle; 10, buckle; 2, needle head; 20, suction hole; 3, hook knife; 30, cutter section; 31, hook section; 4, clamping mechanism; 40, pressing block; 41, semicircular frame; 42, connecting plate; 43, fixing bolt; 44, arc clamping frame; 440, arc groove; 45, plug-in column; 46, support spring; 47, connecting rod; 48, I-shaped frame; 5, vibration generating mechanism; 5 0. Mounting plate; 51. Rotating shaft; 52. Push rod; 53. Follower rod; 54. Connecting spring; 55. Striking plate; 56. Striking ball; 6. Effluent extraction mechanism; 60. Pull rope; 61. Negative pressure chamber; 62. Plug rod; 63. Piston plate; 7. Plug tube; 70. Rubber sleeve; 71. Steel wire rod; 710. Vibrating ball; 72. Fixing frame; 73. Rubber block; 74. Rubber ring; 75. Diversion tube. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0027] like Figure 1 , Figure 2 As shown, a gun-type hook knife for treating stenosing tenosynovitis comprises a handle 1, a needle head 2 and a hook knife part 3. The handle 1 and the needle head 2 are hollow and symmetrically arranged. The handle 1 and the two sides of the needle head 2 are connected by a buckle 10. A clamping mechanism 4 is arranged on the inner side of the handle 1. The end of the needle head 2 away from the hook knife part 3 is connected to a plug-in tube 7. The plug-in tube 7 is inserted between one end of the handle 1 and the clamping mechanism 4 for fixed installation.

[0028] like Figure 2 , Fig. 9 , Fig.10 As shown, a vibration generating mechanism 5 is provided on the inner side of the handle 1, and the vibration generating mechanism 5 is coaxially installed with the inner side of the needle head 2. A suction hole 20 is provided on the side of the needle head 2 close to the hook knife part 3, and the suction holes 20 are symmetrically arranged on both sides of the needle head 2. The hook knife part 3 is arranged in a triangular shape, and the inclined edge of the hook knife part 3 is continuously provided with a cutting knife section 30 and a bent hook section 31. A fluid extraction mechanism 6 is also provided on the inner side of the handle 1.

[0029] Specifically, when the medical device is used to treat stenosing tenosynovitis in patients, the handle 1 is held, and the hook knife portion 3 is inserted into the lesion. The needle head 2 is rotated in coordination with the handle 1, so that the hook knife portion 3 rotates, and the tendon sheath is cut, stretched, and treated. The cutter section 30 can cut the tendon sheath, and the curved hook section 31 serves to hook and stretch the tendon sheath, but does not cut the tendon sheath. At the same time, the suction hole 20 is combined to divert the accumulated fluid in the tendon sheath to prevent the accumulated fluid from overflowing along the needle head 2 when the needle head 2 is inserted, thereby preventing secondary infection and contamination of other medical devices.

[0030] Further, such as Figure 4 , Figure 5 , Figure 6 As shown, the clamping mechanism 4 includes a semicircular frame 41 symmetrically arranged on the inner side of the handle 1, a connecting plate 42 is arranged between the semicircular frames 41, a fixing bolt 43 is arranged between the connecting plate 42 and the handle 1, the semicircular frame 41 is fixedly installed with the handle 1 through the connecting plate 42 and the fixing bolt 43, an arc-shaped clamping frame 44 is arranged on the inner side of the semicircular frame 41, the arc-shaped clamping frame 44 and the semicircular frame 41 are plugged through a plug-in column 45, and a supporting spring 46 is sleeved on the outer side of the plug-in column 45, connecting rods 47 are arranged at both ends of the arc-shaped clamping frame 44, an I-shaped frame 48 is arranged between the connecting rods 47, and the frame structure composed of the I-shaped frame 48 and the connecting rods 47 wraps the semicircular frame 41 in the other side of the handle 1, and a pressing block 40 is arranged on the I-shaped frame 48 facing the side of the handle 1, and a groove is arranged at the position of the handle 1 corresponding to the pressing block 40.

[0031] Specifically, in order to facilitate the cleaning and disinfection of the entire medical device after surgery, the needle head 2 is locked and installed in combination with the insertion tube 7 and the clamping mechanism 4. During installation, the needle head 2 is inserted from the port of the handle 1 with the insertion tube 7. When the needle head 2 is blocked, the thumb and index finger of the other hand press the pressing blocks 40 on both sides of the handle 1, so that the arc-shaped clamping frame 44 on the inner side of the semicircular frame 41 separate from each other. At this time, the needle head 2 is pushed inward and then the pressing block 40 is released, so that the arc-shaped clamping frame 44 clamps and fixes the end of the insertion tube 7.

[0032] Further, such as Figure 6 As shown, a rubber ring 74 is provided at the end of the plug-in tube 7 , and a plurality of groups of arc-shaped grooves 440 are provided on the inner side of the arc-shaped clamping frame 44 , and the arc-shaped grooves 440 cooperate with the rubber ring 74 .

[0033] Specifically, in order to improve the clamping reliability of the end of the plug-in tube 7, a plurality of rubber rings 74 are provided at the end of the plug-in tube 7, and a plurality of groups of arc-shaped grooves 440 are provided on the inner side of the arc-shaped clamping frame 44. The clamping force between the arc-shaped clamping frame 44 and the plug-in tube 7 is improved by the mutual cooperation between the arc-shaped grooves 440 and the rubber rings 74.

[0034] Further, such as Figure 4 , Figure 7 As shown, the vibration generating mechanism 5 includes a fixing frame 72 arranged on the inner side of the handle 1, the fixing frames 72 are symmetrically arranged, a rubber block 73 is arranged between the fixing frames 72, a steel wire rod 71 is inserted into the rubber block 73, one end of the steel wire rod 71 is inserted into the insertion tube 7 and extends to the needle head 2, a rubber sleeve 70 is arranged at the end of the insertion tube 7, a striking plate 55 is arranged at the end of the steel wire rod 71 away from the needle head 2, and a mounting plate 55 is arranged on the inner side of the handle 1 50, a rotating shaft 51 is rotatably mounted on the mounting plate 50, the upper end of the rotating shaft 51 passes through the handle 1 and is connected to a lever 52, the lever 52 is arranged in contact with the surface of the handle 1, the lower end of the rotating shaft 51 is connected to a driven rod 53, a connecting spring 54 is arranged between the driven rod 53 and the handle 1, a knocking ball 56 is arranged on the side of the driven rod 53 away from the connecting spring 54, and the connecting spring 54 and the knocking ball 56 are respectively arranged on both sides of the striking plate 55.

[0035] Specifically, when the needle head 2 is inserted into the lesion, it is generally necessary to move the needle head to relax and relieve pressure on the tendon sheath. However, the manual vibration needs to control the vibration amplitude to avoid excessive amplitude causing tearing damage to the tendon sheath. By setting a lever 52 on the handle 1, when the lever 52 is rotated, the driven rod 53 will be driven to rotate around the rotating shaft 51, stretching the connecting spring 54. After the lever 52 is released, the driven rod 53 carries the knocking ball 56 and hits the striking plate 55, causing the wire rod 71 to vibrate, and the other end of the wire rod 71 will also vibrate synchronously, knocking on the inner side of the needle head 2, thereby driving the needle head 2 to vibrate, achieving the therapeutic effect of relaxing the tendon sheath.

[0036] Further, such as Figure 8 As shown, a vibrating ball 710 is provided at one end of the steel wire rod 71 located at the needle head 2, and the length of the steel wire rod 71 on the side of the fixing frame 72 facing the needle head 2 is greater than the length on the side facing the handle 1, and the steel wire rod 71 is an elastic steel wire.

[0037] Specifically, the length of the steel wire rod 71 on the side facing the needle head 2 is greater than the length on the side facing the handle 1, which can increase the vibration amplitude of the steel wire rod 71 in the needle head 2 and enhance the vibration effect.

[0038] Further, such as Figure 2 , Figure 3As shown, the fluid extraction mechanism 6 includes a negative pressure chamber 61 arranged on the inner side of the handle 1, a piston plate 63 is arranged on the inner side of the negative pressure chamber 61, the piston plate 63 is connected to a plug-in rod 62, the end of the plug-in rod 62 is connected to a pull rope 60, the pull rope 60 is extended to the port portion of the handle 1, and a guide tube 75 is connected to the rubber sleeve 70, the guide tube 75 is connected to the negative pressure chamber 61, and the guide tube 75 is extended to the inner side of the negative pressure chamber 61.

[0039] Specifically, when the needle head 2 is inserted into the tendon sheath, one hand holds the handle 1 and the other hand pulls the pull rope 60 to generate negative pressure in the negative pressure chamber 61. If there is fluid accumulation in the tendon sheath, the accumulated fluid will be introduced into the insertion tube 7 and the guide tube 75 with the cooperation of the suction hole 20, and finally drained into the negative pressure chamber 61 to prevent the accumulated fluid from overflowing and contaminating other parts or instruments.

[0040] The working principle of the embodiment of the present invention is: like Figure 1-Figure 10 As shown, when the medical device is used to treat stenosing tenosynovitis in a patient, the handle 1 is held, and the hook knife portion 3 is inserted into the lesion. The needle head 2 is rotated in coordination with the handle 1, so that the hook knife portion 3 rotates, and the tendon sheath is treated by cutting and stretching. The cutting knife section 30 can cut the tendon sheath, and the curved hook section 31 serves to hook and stretch the tendon sheath, but will not cut the tendon sheath. At the same time, the suction hole 20 is combined to divert the accumulated fluid in the tendon sheath to prevent the accumulated fluid from overflowing along the needle head 2 when the needle head 2 is inserted, thereby preventing secondary infection and contamination of other medical devices. The needle head 2 is locked and installed in combination with the insertion tube 7 and the clamping mechanism 4. During installation, the needle head 2 carries the plug tube 7 and is inserted from the port of the handle 1. When the needle head 2 is blocked, the thumb and index finger of the other hand press the pressing blocks 40 on both sides of the handle 1, so that the arc-shaped clamping frame 44 on the inner side of the semicircular frame 41 separate from each other. At this time, the needle head 2 is pushed inward and then the pressing block 40 is released, so that the arc-shaped clamping frame 44 clamps and fixes the end of the plug tube 7. By setting a lever 52 on the handle 1, when the lever 52 is rotated, the driven rod 53 will be driven to rotate around the rotating shaft 51, stretching the connecting spring 54. After the lever 52 is released, the driven rod 53 carries the knocking ball 56 and hits the striking plate 55, so that the steel wire rod 71 vibrates, and the other end of the steel wire rod 71 will also vibrate synchronously, knocking on the inner side of the needle head 2, thereby driving the needle head 2 to vibrate, achieving the therapeutic effect of relaxing the tendon sheath. When the needle head 2 is inserted into the tendon sheath, one hand holds the handle 1 and the other hand pulls the pull rope 60 to generate negative pressure in the negative pressure chamber 61. If there is fluid accumulation in the tendon sheath, the accumulated fluid will be introduced into the insertion tube 7 and the guide tube 75 with the cooperation of the suction hole 20, and finally drained into the negative pressure chamber 61 to prevent the accumulated fluid from overflowing and contaminating other parts or instruments.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Any reference numeral in a claim shall not be regarded as limiting the claim involved.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gun-type hook knife for treating stenosing tenosynovitis, comprising a handle (1), a needle head (2) and a hook knife (3), characterized in that: The handle (1) and the needle head (2) are arranged in a hollow and symmetrical manner. The handle (1) and the needle head (2) are connected at both sides by means of a buckle (10). A clamping mechanism (4) is arranged on the inner side of the handle (1). An end of the needle head (2) away from the hook knife portion (3) is connected to a plug-in tube (7). The plug-in tube (7) is inserted between one end of the handle (1) and the clamping mechanism (4) to be fixedly installed. A vibration generating mechanism (5) is arranged on the inner side of the handle (1), and the vibration generating mechanism (5) is coaxially mounted on the inner side of the needle head (2). A suction hole (20) is arranged on the side of the needle head (2) close to the hook knife portion (3), and the suction holes (20) are symmetrically arranged on both sides of the needle head (2). The hook knife portion (3) is arranged in a triangular shape, and the inclined edge of the hook knife portion (3) is continuously provided with a cutting knife section (30) and a curved hook section (31). The inner side of the handle (1) is also provided with an accumulated liquid extraction mechanism (6).

2. A gun-type hook knife for treating stenosing tenosynovitis according to claim 1, characterized in that: The clamping mechanism (4) comprises a semicircular frame (41) symmetrically arranged on the inner side of the handle (1), a connecting plate (42) is arranged between the semicircular frame (41), a fixing bolt (43) is arranged between the connecting plate (42) and the handle (1), the semicircular frame (41) is fixedly mounted on the handle (1) via the connecting plate (42) and the fixing bolt (43), an arc-shaped clamping frame (44) is arranged on the inner side of the semicircular frame (41), and the arc-shaped clamping frame (44) and the semicircular frame (41) are connected via a plug-in column ( 45) is plugged in, the outer side of the plug-in column (45) is sleeved with a supporting spring (46), connecting rods (47) are provided at both ends of the arc-shaped clamping frame (44), an I-shaped frame (48) is provided between the connecting rods (47), the frame structure composed of the I-shaped frame (48) and the connecting rods (47) wraps the semicircular frame (41) in the handle (1) on the other side, the I-shaped frame (48) is provided with a pressing block (40) on the side facing the handle (1), and the handle (1) is provided with a groove at a position corresponding to the pressing block (40).

3. A gun-type hook knife for treating stenosing tenosynovitis according to claim 2, characterized in that: A rubber ring (74) is provided at the end of the plug-in tube (7), and a plurality of groups of arc-shaped grooves (440) are provided on the inner side of the arc-shaped clamping frame (44), wherein the arc-shaped grooves (440) cooperate with the rubber ring (74).

4. The gun-type hook knife for treating stenosing tenosynovitis according to claim 1, characterized in that: The vibration generating mechanism (5) comprises a fixing frame (72) arranged inside the handle (1), the fixing frames (72) being symmetrically arranged, a rubber block (73) being arranged between the fixing frames (72), a steel wire rod (71) being inserted into the rubber block (73), one end of the steel wire rod (71) being inserted into the insertion tube (7) and extending to the needle head (2), a rubber sleeve (70) being arranged at the end of the insertion tube (7), a striking plate (55) being arranged at the end of the steel wire rod (71) away from the needle head (2), and a mounting plate (50) being arranged inside the handle (1). ), a rotating shaft (51) is rotatably mounted on the mounting plate (50), the upper end of the rotating shaft (51) passes through the handle (1) and is connected to a lever (52), the lever (52) is arranged in contact with the surface of the handle (1), the lower end of the rotating shaft (51) is connected to a driven rod (53), a connecting spring (54) is arranged between the driven rod (53) and the handle (1), a knocking ball (56) is arranged on the side of the driven rod (53) away from the connecting spring (54), and the connecting spring (54) and the knocking ball (56) are respectively arranged on both sides of a striking plate (55).

5. The gun-type hook knife for treating stenosing tenosynovitis according to claim 4, characterized in that: A vibrating ball (710) is provided at one end of the steel wire rod (71) located at the needle head (2); the length of the steel wire rod (71) on the side of the fixing frame (72) facing the needle head (2) is greater than the length on the side facing the handle (1); and the steel wire rod (71) is an elastic steel wire.

6. The gun-type hook knife for treating stenosing tenosynovitis according to claim 4, characterized in that: The fluid extraction mechanism (6) includes a negative pressure chamber (61) arranged on the inner side of the handle (1), a piston plate (63) is arranged on the inner side of the negative pressure chamber (61), the piston plate (63) is connected to a plug-in rod (62), the end of the plug-in rod (62) is connected to a pull rope (60), the pull rope (60) is extended to the end of the handle (1), and a guide tube (75) is connected to the rubber sleeve (70), the guide tube (75) is connected to the negative pressure chamber (61), and the guide tube (75) is extended to the inner side of the negative pressure chamber (61).

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