Ultrasonic knife with replaceable blade

Abstract

This utility model belongs to the field of ultrasonic scalpel technology, specifically relating to an ultrasonic scalpel with a conveniently replaceable scalpel tip. The device includes: a separate scalpel tip and a main body, the tail end of the scalpel tip being adapted to be inserted into the head of the main body; a limiting mechanism, detachably mounted on the head of the main body, and adapted to be fitted over the tail end of the scalpel tip; wherein, the limiting mechanism includes two slidably arranged clamping blocks; each clamping block has a positioning plate on its side facing the main body, and the main body has several positioning grooves; the positioning plate corresponds to the positioning grooves; and, after the two clamping blocks clamp the scalpel tip from both sides, the limiting mechanism slides towards the main body, so that the positioning plate is inserted into the positioning groove to position the clamping blocks and the scalpel tip. By completely separating the scalpel tip and the main body and using a limiting mechanism to position the scalpel tip and the main body, the scalpel tip is reliably mounted on the main body via the limiting mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of ultrasonic scalpel technology, specifically relating to an ultrasonic scalpel with a conveniently replaceable blade. Background Technology

[0002] An ultrasonic scalpel, or ultrasonic scalpel for short, is a high-frequency electrosurgical device primarily used for cutting biological tissues and closing blood vessels. It features minimal bleeding, less damage to surrounding tissues, and faster postoperative recovery. It cuts and coagulates human tissue without causing side effects such as tissue dryness or burns. No current passes through the body during operation, making it widely used in operating rooms and earning it the nickname "bloodless scalpel."

[0003] In related technologies, ultrasonic scalpels include components such as ultrasonic generators, transducers, handles, torque wrenches, and scalpel heads. With the upgrading and iteration of products, there is a growing trend of integrating the above components into one unit to achieve hostless operation.

[0004] The blade is a disposable consumable and needs to be replaced after use to avoid cross-contamination. However, currently the blade and the ultrasonic scalpel body are internally fixed, which presents a technical problem of low convenience during disassembly.

[0005] Therefore, there is an urgent need to design an ultrasonic scalpel with a conveniently replaceable blade to solve the above-mentioned technical problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0007] This disclosure provides at least one ultrasonic scalpel with a conveniently replaceable blade tip.

[0008] In a first aspect, embodiments of this disclosure provide an ultrasonic scalpel with a conveniently replaceable blade tip, comprising: a blade tip and a main body that are separately configured, wherein the tail end of the blade tip is adapted to be inserted into the head of the main body; A limiting mechanism is detachably mounted on the head of the main body, and the limiting mechanism is adapted to be fitted onto the tail end of the cutter head; The limiting mechanism includes two slidably arranged clamping blocks; The clamping block has a positioning piece on the side facing the main body, and the main body has several positioning grooves. The positioning piece corresponds to the positioning groove; Furthermore, after the two clamping blocks clamp the cutter head from both sides, the limiting mechanism slides towards the main body so that the positioning plate is inserted into the positioning groove to position the clamping block and the cutter head.

[0009] In one optional embodiment, the outer end of the positioning piece has barbs, and the positioning groove has a slot, with the barbs corresponding to the slot.

[0010] In one optional embodiment, the limiting mechanism includes a limiting ring with two movable grooves along the radial direction, and two clamping blocks are slidably disposed in the corresponding movable grooves.

[0011] In one alternative embodiment, the inner ring of the clamping block has at least two locking protrusions.

[0012] In one alternative embodiment, a cutting protrusion is provided between two adjacent locking protrusions.

[0013] In one alternative embodiment, the inner diameter of the cutting protrusion is larger than the inner diameter of the locking protrusion.

[0014] In one alternative embodiment, the limiting ring has two guide plates on the side facing the body.

[0015] In one optional embodiment, anti-detachment strips are provided on both sides of the clamping block, and an anti-detachment groove is provided in the movable groove.

[0016] Secondly, this disclosure also provides an ultrasonic scalpel with a conveniently replaceable blade tip, comprising: a blade tip and a main body that are separately configured, wherein the tail end of the blade tip is adapted to be inserted into the head of the main body; A limiting mechanism is detachably mounted on the head of the main body, and the limiting mechanism is adapted to be fitted onto the tail end of the cutter head; The limiting mechanism includes two slidably arranged clamping blocks; The clamping block has a positioning piece on the side facing the main body, and the main body has several positioning grooves. The positioning piece corresponds to the positioning groove; Furthermore, after the two clamping blocks clamp the cutter head from both sides, the limiting mechanism slides toward the main body so that the positioning piece is inserted into the positioning groove to position the clamping block and the cutter head. The limiting mechanism includes a limiting ring, which has two movable grooves along the radial direction, and two clamping blocks are slidably disposed in the corresponding movable grooves. The inner ring of the clamping block has at least two locking protrusions; There is a cutting protrusion between two adjacent locking protrusions.

[0017] In one optional embodiment, the outer end of the positioning piece has barbs, and the positioning groove has a slot, with the barbs corresponding to the slot.

[0018] The beneficial effect of this utility model is that by completely separating the cutter head and the main body and setting a limiting mechanism to position the cutter head and the main body, the cutter head can be reliably installed on the main body through the limiting mechanism.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A perspective view of an ultrasonic scalpel provided in an embodiment of this disclosure; Figure 2 This is a schematic diagram of a limiting mechanism provided in an embodiment of the present disclosure; Figure 3 An exploded view of a limiting mechanism provided in an embodiment of this disclosure; Figure 4 A cross-sectional view of the limiting mechanism provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram showing the engagement state of the clamping block and the main body according to an embodiment of this disclosure.

[0023] In the picture: 1. Cutting head; 2. Main body; 21. Positioning groove; 22. Slot; 3. Limiting mechanism; 31. Clamping block; 311. Locking protrusion ring; 312. Cutting protrusion ring; 313. Anti-detachment strip; 32. Positioning plate; 33. Barbs; 34. Limiting ring; 341. Movable groove; 342. Guide plate; 343. Anti-detachment groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Research has revealed that ultrasonic scalpels, in related technologies, include components such as an ultrasonic generator, transducer, handle, torque wrench, and blade. With product updates and iterations, there is a growing trend towards integrating these components into a single unit, achieving a hostless design. The blade is a disposable consumable and needs to be replaced after use to avoid cross-contamination. However, currently, the blade is internally fixed to the ultrasonic scalpel body, presenting a technical challenge in terms of ease of disassembly.

[0026] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure below should be considered as the inventor's contribution to this disclosure.

[0027] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the embodiments and features described below can be combined with each other. Furthermore, in the accompanying drawings, the thickness of components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Based on the above research, and referring to Figure 1 This disclosure provides an ultrasonic scalpel with a conveniently replaceable blade head 1, comprising: a blade head 1 and a main body 2 that are separately configured. The head of the main body 2 has an assembly hole, and the tail end of the blade head 1 can be inserted into the assembly hole to achieve installation with the main body 2.

[0030] Reference Figure 1 In at least one embodiment, after the cutting head 1 is inserted into the body 2, in order to conveniently fix the cutting head 1 to the body 2, a limiting mechanism 3 can be detachably installed on the head of the body 2. The limiting mechanism 3 includes a limiting ring 34, which is sleeved on the tail end of the cutting head 1.

[0031] Reference Figure 2In at least one embodiment, the limiting mechanism 3 further includes two clamping blocks 31, both of which can slide radially along the limiting ring 34, that is, the two clamping blocks 31 can move closer to or further away from the axis of the limiting ring 34. Furthermore, after the tube of the cutter head 1 is inserted into the limiting ring 34, the two clamping blocks 31 can retract inward to clamp the cutter head 1; conversely, the two clamping blocks 31 can open outward to release the cutter head 1.

[0032] Reference Figure 5 In at least one embodiment, the clamping block 31 has a positioning piece 32 on the side facing the main body 2. The main body 2 has several positioning grooves 21, allowing one positioning piece 32 to be inserted into one positioning groove 21 simultaneously. Simultaneously, the outer end of the positioning piece 32 has a barb 33, and the positioning groove 21 has a slot 22, with the barb 33 corresponding to the slot 22. The positioning piece 32 is guided into the positioning groove 21 by the barb 33, and upon reaching the bottom of the positioning groove 21, the barb 33 engages with the slot 22, thereby positioning the clamping block 31. On the other hand, when the two clamping blocks 31 clamp the blade head 1 inwards, the positioning piece 32 corresponds to the position of the positioning groove 21. Therefore, the action of the clamping block 31 clamping the blade head 1 is consistent with the action of the barb 33 engaging with the slot 22. Thus, when installing the blade head 1, the clamping block 31 clamps the blade head 1 and positions it with the positioning groove 21, thereby completing the process of clamping and positioning the blade head 1.

[0033] Reference Figure 3 In some embodiments, the limiting ring 34 has two movable grooves 341 radially provided, and the two clamping blocks 31 are respectively slidably disposed in the corresponding movable grooves 341.

[0034] Reference Figure 3 In some embodiments, to facilitate the alignment of the two positioning pieces 32 with the positioning grooves 21, the limiting ring 34 has two guide pieces 342 on the side facing the main body 2. Before installation, the two guide pieces 342 can be aligned with the two positioning grooves 21 respectively, so that the two positioning pieces 32 are aligned with the two empty positioning grooves 21. Then, by simply retracting the clamping block 31 inward, the positioning pieces 32 can be retracted into the corresponding positioning grooves 21.

[0035] Reference Figure 4 In at least one embodiment, the inner ring of the clamping block 31 has at least two locking protrusions 311. When the clamping block 31 clamps the cutter head 1 inward, the two locking protrusions 311 compress the outer tube of the cutter head 1. The outer tube of the cutter head 1 is made of a flexible material. Therefore, under the compression of the locking protrusions 311, the outer tube of the cutter head 1 deforms into a bulge in the gap between the two locking protrusions 311. This bulge is limited by the locking protrusions 311 on both sides, thereby further strengthening the clamping effect of the clamping block 31 on the cutter head 1 and preventing the cutter head 1 from detaching from between the two clamping blocks 31.

[0036] Reference Figure 4 In at least one embodiment, a cutting protrusion 312 is provided between two adjacent locking protrusions 311. The inner diameter of the cutting protrusion 312 is larger than the inner diameter of the locking protrusion 311. After the cutter head 1 is used up, the clamping block 31 can be pressed further inward. At this time, as the clamping block 31 further retracts inward, the tip of the cutting protrusion 312 cuts the outer tube of the cutter head 1, thereby destroying the outer tube structure of the cutter head 1, so that the clamping block 31 can further retract inward, and then refer to Figure 5 The clamping block 31 retracts inward to disengage the barb 33 from the slot 22, allowing the positioning piece 32 to be removed from the positioning slot 21. On the other hand, the cutting head 1 after cutting by the cutting ring 312 has obvious damage, making it easy to distinguish from unused cutting heads 1.

[0037] Reference Figure 4 In at least one embodiment, anti-detachment strips 313 are provided on both sides of the clamping block 31, and an anti-detachment groove 343 is provided in the movable groove 341. The radial sliding stroke of the clamping block 31 is limited to the stroke of the anti-detachment strips 313 in the anti-detachment groove 343, thereby preventing the clamping block 31 from detaching from the sliding groove.

[0038] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Based on the above-described ideal embodiments of this utility model, and through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification; its technical scope must be determined by the scope of the claims.

Claims

1. An ultrasonic scalpel with a conveniently replaceable blade tip, characterized in that, include: The blade (1) and the main body (2) are set separately, and the tail end of the blade (1) is suitable for being inserted into the head of the main body (2); The limiting mechanism (3) is detachably installed at the head of the main body (2), and the limiting mechanism (3) is adapted to be fitted over the tail end of the cutter head (1); The limiting mechanism (3) includes two slidably arranged clamping blocks (31). The clamping block (31) has a positioning piece (32) on the side facing the main body (2), and the main body (2) has several positioning grooves (21). The positioning piece (32) corresponds to the positioning groove (21); And, after the two clamping blocks (31) clamp the cutter head (1) from both sides, the limiting mechanism (3) slides toward the main body (2) so that the positioning piece (32) is inserted into the positioning groove (21) to position the clamping block (31) and the cutter head (1).

2. The ultrasonic scalpel with easily replaceable blade as described in claim 1, characterized in that, The outer end of the positioning piece (32) has barbs (33), and the positioning groove (21) has a slot (22), with the barbs (33) corresponding to the slot (22).

3. The ultrasonic scalpel with easily replaceable blade as described in claim 1, characterized in that, The limiting mechanism (3) includes a limiting ring (34), which has two movable grooves (341) in the radial direction, and two clamping blocks (31) are respectively slidably disposed in the corresponding movable grooves (341).

4. The ultrasonic scalpel with easily replaceable blade as described in claim 1, characterized in that, The inner ring of the clamping block (31) has at least two locking protrusions (311).

5. The ultrasonic scalpel with easily replaceable blade as described in claim 4, characterized in that, A cutting protrusion (312) is provided between two adjacent locking protrusions (311).

6. The ultrasonic scalpel with easily replaceable blade as described in claim 5, characterized in that, The inner diameter of the cutting protrusion (312) is larger than the inner diameter of the locking protrusion (311).

7. The ultrasonic scalpel with easily replaceable blade as described in claim 3, characterized in that, The limiting ring (34) has two guide pieces (342) on the side facing the main body (2).

8. The ultrasonic scalpel with easily replaceable blade as described in claim 3, characterized in that, The clamping block (31) is provided with anti-detachment strips (313) on both sides, and the movable groove (341) is provided with anti-detachment groove (343).

9. An ultrasonic scalpel with a conveniently replaceable blade tip, characterized in that, include: The blade (1) and the main body (2) are set separately, and the tail end of the blade (1) is suitable for being inserted into the head of the main body (2); The limiting mechanism (3) is detachably installed at the head of the main body (2), and the limiting mechanism (3) is adapted to be fitted over the tail end of the cutter head (1); The limiting mechanism (3) includes two slidably arranged clamping blocks (31). The clamping block (31) has a positioning piece (32) on the side facing the main body (2), and the main body (2) has several positioning grooves (21). The positioning piece (32) corresponds to the positioning groove (21); And, after the two clamping blocks (31) clamp the cutter head (1) from both sides respectively, the limiting mechanism (3) slides toward the main body (2) so that the positioning piece (32) is inserted into the positioning groove (21) to position the clamping block (31) and the cutter head (1). The limiting mechanism (3) includes a limiting ring (34), which has two movable grooves (341) in the radial direction, and two clamping blocks (31) are respectively slidably disposed in the corresponding movable grooves (341); The inner ring of the clamping block (31) has at least two locking protrusions (311). A cutting protrusion (312) is provided between two adjacent locking protrusions (311).

10. The ultrasonic scalpel with easily replaceable blade as described in claim 9, characterized in that, The outer end of the positioning piece (32) has barbs (33), and the positioning groove (21) has a slot (22), with the barbs (33) corresponding to the slot (22).

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