A gun-type ultrasonic knife head structure for preventing tissue pad and protection pad from retreating

Abstract

The utility model belongs to ultrasonic knife technical field especially is involved a kind of gun type ultrasonic knife head structure to prevent tissue pad and protective pad to retreat, including and compression forceps assembly, outer sleeve and inner sleeve;Compression forceps assembly includes compression forceps, tissue pad and protective pad, and compression forceps are equipped with I-shaped slot, dovetail slot, stop gap, welding pin hole one and closure pull hook;Outer sleeve is equipped with stop protrusion, welding pin hole two in it;Inner sleeve is equipped with closure hole position, and closure pull hook is installed in closure hole position, and by welding pin passes through welding pin hole one and welding pin hole two and is welded with compression forceps after being worn;I-shaped slot and tissue pad fit, dovetail slot and protective pad fit, stop gap and stop protrusion cooperate and install, welding pin hole two and outer sleeve are welded with dowel, and closure pull hook and inner sleeve cooperate and install.The utility model can avoid the situation that protective pad in compression forceps assembly retreats when working, and simplify process and reduce cost.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic scalpel technology, and in particular to a gun-type ultrasonic scalpel head structure that prevents the tissue pad and protective pad from retracting. Background Technology

[0002] Ultrasonic scalpels are widely used in surgical procedures for cutting and stopping bleeding in soft tissues, and can also be used to coagulate blood vessels.

[0003] Currently, ultrasonic scalpels on the market have a clamping assembly at the head of the cannula. The clamping assembly is connected to the outer and inner cannulas of the ultrasonic scalpel. The clamping assembly is driven by the inner cannulas to open and close the jaws. When the ultrasonic scalpel is working, soft tissue or blood vessels are clamped between the clamping assembly and the scalpel shaft. As the ultrasonic scalpel shaft vibrates back and forth at a frequency of about 55.5 kHz to cut the soft tissue or blood vessels clamped between the clamping assembly and the scalpel shaft, this process causes the tissue pad and retaining pad in the clamping assembly to retract. Once the tissue pad and retaining pad retract, it will affect the clamping force, gripping force, and cutting efficiency of the ultrasonic scalpel. In severe cases, the clamping assembly may even fail to close the soft tissue or blood vessels, affecting the operation and increasing the surgical risk.

[0004] Therefore, most manufacturers on the market currently use glue on the contact surfaces of the clamping clamp and the component pad and protective pad in the clamping clamp assembly to avoid this situation as much as possible. This solution increases the difficulty of the process and the cost. Utility Model Content

[0005] The purpose of this invention is to address the problems mentioned in the background art by providing a gun-type ultrasonic scalpel head structure that prevents the tissue pad and protective pad from retracting.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A gun-type ultrasonic scalpel head structure for preventing tissue pads and protective pads from retracting includes a clamping forceps assembly, an outer sleeve, and an inner sleeve. The clamp assembly includes clamps, a tissue pad, and a protective pad. The clamps are provided with an I-beam groove, a dovetail groove, a stop notch, a welding pin hole, and a closing hook. The outer sleeve is provided with a stop protrusion and a welding pin hole; The inner sleeve is provided with a closed hole. After the closed hook is installed in the closed hole, the welding pin passes through welding pin hole one and welding pin hole two and is welded with the clamp. The I-shaped slot fits into the tissue pad, the dovetail slot fits into the protective pad, the stop notch and the stop protrusion are fitted together, the welding pin hole two is welded to the outer sleeve with a pin, and the closing hook is fitted into the inner sleeve for closing the jaw assembly.

[0007] Furthermore, the tissue pad is provided with an I-shaped structure and a chamfered structure, and the I-shaped structure fits into the I-shaped groove.

[0008] Furthermore, the protective pad is provided with an anti-backward notch and a dovetail structure, the dovetail structure fitting into the dovetail slot.

[0009] Furthermore, one end of the I-shaped slot is connected to one end of the dovetail slot.

[0010] Furthermore, the clamp is a powder metallurgy component, the tissue pad is made of PTFE material, and the protective pad is made of PEEK material.

[0011] Furthermore, the rear end of the clamp is provided with a groove, and the stop notch is provided on the side wall of the groove away from its opening.

[0012] Furthermore, the front end of the outer tube is provided with a protrusion that mates with the groove, and the stop protrusion (4-1) is provided at the end of the protrusion away from the outer tube.

[0013] Furthermore, there are two stop notches and two stop protrusions, and the two stop notches and two stop protrusions are installed in pairs.

[0014] Furthermore, there are two closing hooks, which are fixed on both sides of the rear end of the clamp, and two closing holes are set on both sides of the front end of the inner sleeve. The two closing hooks and the two closing holes are installed in pairs.

[0015] Furthermore, two anti-backward notches are provided and located on both sides of the rear end of the protective pad. The two anti-backward notches exactly abut against the two stop protrusions.

[0016] Compared with existing technologies, the advantages of this gun-type ultrasonic scalpel head structure that prevents tissue pad and protective pad retraction are: This invention can prevent the protective pad in the clamp assembly from retracting during operation and avoids the need for adhesive bonding between the clamp, tissue pad, and protective pad, thus simplifying the process and reducing costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the gun-type ultrasonic scalpel head structure that prevents the tissue pad and protective pad from retracting, provided by this utility model. Figure 2 This is a schematic diagram of the pressure clamp assembly in the head structure of a gun-type ultrasonic scalpel provided by this utility model, which prevents the tissue pad and protective pad from retracting. Figure 1 ; Figure 3This is an exploded view of the clamping forceps assembly in the gun-type ultrasonic scalpel head structure that prevents the tissue pad and protective pad from retracting, as provided by this utility model. Figure 4 This is a schematic diagram of the pressure clamp in the gun-type ultrasonic scalpel head structure that prevents the tissue pad and protective pad from retracting, provided by this utility model. Figure 5 This is a schematic diagram of the tissue pad structure in the gun-type ultrasonic scalpel head structure provided by this utility model to prevent the tissue pad and protective pad from retracting. Figure 6 This is a schematic diagram of the protective pad structure in the gun-type ultrasonic scalpel head structure that prevents the tissue pad and protective pad from retracting, provided by this utility model. Figure 7 This is a schematic diagram of the outer sleeve structure in the gun-type ultrasonic scalpel head structure that prevents the tissue pad and protective pad from retracting, provided by this utility model. Figure 8 This is a schematic diagram of the inner sleeve structure in the gun-type ultrasonic scalpel head structure that prevents the tissue pad and protective pad from retracting, provided by this utility model. Figure 9 This is a schematic diagram of the pressure clamp assembly in the head structure of a gun-type ultrasonic scalpel provided by this utility model, which prevents the tissue pad and protective pad from retracting. Figure 2 ; Figure 10 This is a schematic diagram of the jaws closing in the gun-type ultrasonic scalpel head structure that prevents the tissue pad and protective pad from retracting, as provided by this utility model.

[0018] In the diagram: 1. Clamping clamp; 1-1. Stop notch; 1-2. I-beam groove; 1-3. Dovetail groove; 1-4. Welding pin hole one; 1-5. Closing hook; 2. Tissue pad; 2-1. I-beam structure; 2-2. Chamfered structure; 3. Tissue pad; 3-1. Anti-backward notch; 3-2. Dovetail structure; 4. Tissue pad; 4-1. Stop protrusion; 4-2. Welding pin hole two; 5. Inner sleeve; 5-1. Closing hole; 6. Welding pin. Detailed Implementation

[0019] The following embodiments are for illustrative purposes only and are not intended to limit the scope of this invention.

[0020] Reference Figures 1 to 10 A gun-type ultrasonic scalpel head structure for preventing tissue pads and protective pads from retracting, characterized in that it includes a clamping assembly, an outer sleeve 4 and an inner sleeve 5. The clamp assembly includes clamps 1, tissue pads 2 and protective pads 3. The clamps are provided with I-beam grooves 1-2, dovetail grooves 1-3, stop notches 1-1, welding pin holes 1-4 and closing hooks 1-5. The outer sleeve 4 is provided with a stop protrusion 4-1 and a welding pin hole 4-2; The inner sleeve 5 is provided with a closed hole 5-1. After the closed hook 1-5 is inserted into the closed hole 5-1, the welding pin 6 passes through the welding pin hole 1-4 and the welding pin hole 4-2 and is welded to the clamp 1. The I-shaped groove 1-2 fits into the tissue pad 2, the dovetail groove 1-3 fits into the protective pad 3, the stop notch 1-1 is installed in conjunction with the stop protrusion 4-1, the stop protrusion 4-1 is used to prevent the protective pad 3 from moving backward when the ultrasonic scalpel is working, the welding pin hole 4-2 is welded to the outer sleeve 4 with a pin, and the closing hook 1-5 is installed in conjunction with the inner sleeve 5 for closing the jaw assembly.

[0021] like Figure 4 , Figure 5 , Figure 6 , Figure 9 As shown, the tissue pad 2 is provided with an I-shaped structure 2-1 and a chamfered structure 2-2. The I-shaped structure 2-1 fits into the I-shaped slot 1-2. The tissue pad 2 can be inserted into the clamp 1 through the slot at the rear end of the clamp 1. The tissue pad 2 is introduced from the dovetail slot 1-3 at the rear end of the clamp 1 by the chamfered structure 2-2 and installed by the I-shaped structure 2-1 and the I-shaped slot 1-2 until it reaches the front end of the clamp 1.

[0022] like Figure 9 As shown, the protective pad 3 is provided with an anti-backward notch 3-1 and a dovetail structure 3-2. The dovetail structure 3-2 fits into the dovetail slot 1-3, and the clamp 1 can be inserted into the clamp 1 through the slot at the rear end of the clamp 1. The anti-backward notch 3-1 cooperates with the outer tube 4 to prevent the tissue pad 2 and the protective pad 3 from backing up.

[0023] like Figure 4 As shown, one end of the I-shaped slot 1-2 is connected to one end of the dovetail slot 1-3, which makes it convenient to insert the tissue pad 2 and the protective pad 3.

[0024] The clamp 1 is a powder metallurgy part, the tissue pad 2 is made of PTFE material, and the protective pad 3 is made of PEEK material. PEEK material has high hardness, which can protect the tissue pad and reduce the wear of the tissue pad.

[0025] like Figure 4 , Figure 7 As shown, the rear end of the clamp 1 is provided with a groove, and the stop notch 1-1 is provided on the side wall of the groove away from its opening; the front end of the outer sleeve 4 is provided with a protrusion that mates with the groove, and the stop protrusion 4-1 is provided at the end of the protrusion away from the outer sleeve 4. This structure provides sufficient space for the rotation of the clamp 1.

[0026] like Figure 4 , Figure 7 and Figure 8As shown, there are two stop notches 1-1 and two stop protrusions 4-1, and the two stop notches 1-1 and two stop protrusions 4-1 are installed in pairs. There are two closing hooks 1-5, which are fixed on both sides of the rear end of the clamp 1. There are two closing holes 5-1, which are located on both sides of the front end of the inner sleeve 5. The two closing hooks 1-5 and two closing holes 5-1 are installed in pairs. There are two anti-backward notches 3-1, which are located on both sides of the rear end of the protective pad 3. The two anti-backward notches 3-1 exactly abut against the two stop protrusions 4-1.

[0027] like Figure 10 As shown, when the inner sleeve 5 is driven, the hole 5-1 is closed, which will drive the closing hook 1-5 of the clamp 1 to close the clamp assembly. At this time, the stop protrusion 4-1 of the outer sleeve 4 is inside the stop notch 1-1 and is blocked behind the anti-backward notch 3-1 of the protective pad 3. Therefore, when the ultrasonic scalpel is closed, the protective pad 3 will not back down due to the high-frequency reciprocating vibration of the scalpel rod. When the inner sleeve 5 is not driven, the movement trajectory of the anti-backward notch 3-1 of the protective pad 3 will not interfere with the stop protrusion 4-1 of the outer sleeve 4. The clamp assembly of the ultrasonic scalpel can close and open normally.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gun-type ultrasonic scalpel head structure for preventing tissue pad and protective pad retraction, characterized in that, Includes a clamping assembly, an outer sleeve (4), and an inner sleeve (5); The clamp assembly includes clamps (1), tissue pads (2) and protective pads (3). The clamps (1) are provided with I-shaped slots (1-2), dovetail slots (1-3), stop notches (1-1), welding pin holes (1-4) and closing hooks (1-5). The outer sleeve (4) is provided with a stop protrusion (4-1) and a welding pin hole (4-2). The inner sleeve (5) is provided with a closed hole (5-1). After the closed hook (1-5) is inserted into the closed hole (5-1), the welding pin (6) passes through the first welding pin hole (1-4) and the second welding pin hole (4-2) and is welded to the clamp (1). The I-shaped slot (1-2) fits into the tissue pad (2), the dovetail slot (1-3) fits into the protective pad (3), the stop notch (1-1) and the stop protrusion (4-1) are installed together, the welding pin hole (4-2) is welded to the outer sleeve (4) with a pin, and the closing hook (1-5) is installed together with the inner sleeve (5) for closing the jaw assembly.

2. The gun-type ultrasonic scalpel head structure for preventing tissue pad and protective pad retraction according to claim 1, characterized in that, The tissue pad (2) is provided with an I-shaped structure (2-1) and a chamfered structure (2-2), and the I-shaped structure (2-1) fits into the I-shaped slot (1-2).

3. The gun-type ultrasonic scalpel head structure for preventing tissue pad and protective pad retraction according to claim 2, characterized in that, The protective pad (3) is provided with an anti-backward notch (3-1) and a dovetail structure (3-2), and the dovetail structure (3-2) fits into the dovetail slot (1-3).

4. The gun-type ultrasonic scalpel head structure for preventing tissue pad and protective pad retraction according to claim 3, characterized in that, One end of the I-shaped slot (1-2) is connected to one end of the dovetail slot (1-3).

5. The gun-type ultrasonic scalpel head structure for preventing tissue pad and protective pad retraction according to claim 4, characterized in that, The clamp (1) is a powder metallurgy part, the tissue pad (2) is made of PTFE material, and the protective pad (3) is made of PEEK material.

6. The gun-type ultrasonic scalpel head structure for preventing tissue pad and protective pad retraction according to claim 5, characterized in that, The rear end of the clamp (1) is provided with a slot, and the stop notch (1-1) is provided on the side wall of the slot away from its opening.

7. The gun-type ultrasonic scalpel head structure for preventing tissue pad and protective pad retraction according to claim 6, characterized in that, The front end of the outer tube (4) is provided with a protrusion that mates with the groove, and the stop protrusion (4-1) is provided at the end of the protrusion away from the outer tube (4).

8. The gun-type ultrasonic scalpel head structure for preventing tissue pad and protective pad retraction according to claim 7, characterized in that, The stop notch (1-1) and stop protrusion (4-1) are both set to 2, and the 2 stop notches (1-1) and 2 stop protrusions (4-1) are installed in pairs.

9. The gun-type ultrasonic scalpel head structure for preventing tissue pad and protective pad retraction according to claim 8, characterized in that, Two closing hooks (1-5) are provided and fixed on both sides of the rear end of the clamp (1). Two closing holes (5-1) are provided and set on both sides of the front end of the inner sleeve (5). The two closing hooks (1-5) and the two closing holes (5-1) are installed in pairs.

10. The gun-type ultrasonic scalpel head structure for preventing tissue pad and protective pad retraction according to claim 9, characterized in that, Two anti-backward notches (3-1) are provided and located on both sides of the rear end of the protective pad (3). The two anti-backward notches (3-1) are exactly abutted against the two stop protrusions (4-1).

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