CN211300209U

CN211300209U - Ultrasonic cutting hemostatic knife convenient to dismantle tool bit

Info

Publication number: CN211300209U
Application number: CN201922070453.2U
Authority: CN
Inventors: 罗惠君
Original assignee: Shanghai Shengzhe Medical Technology Co ltd
Current assignee: Shanghai Shengzhe Medical Technology Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-08-21
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses an ultrasonic cutting hemostatic knife convenient for detaching a knife head, which relates to the technical field of medical devices and comprises a main machine, a knife head and a transducer, wherein the knife head comprises a handle, a waveguide rod and a knife tip, the transducer is provided with a connecting end, the handle is provided with a connecting groove, the connecting groove is internally provided with a mounting structure, the mounting structure comprises a mounting plate, a limiting ring, a clamping block and a jacking component, the mounting plate and the handle are fixedly connected with the limiting ring and are divided into a first semi-ring and a second semi-ring which are symmetrically arranged, the first semi-ring is hinged with the second semi-ring, the first semi-ring and the second semi-ring are both connected with the clamping block, the connecting end is provided with a clamping hole, the clamping block is clamped with the clamping hole, the jacking component comprises a moving rod, the moving rod is slidably arranged on the handle, the end part of the moving rod, which is positioned in the connecting, and the abrasion times of the clamping blocks are reduced, and the connection strength of the handle and the transducer is improved.

Description

Ultrasonic cutting hemostatic knife convenient to dismantle tool bit

Technical Field

The utility model relates to the technical field of medical devices, more specifically say, it relates to an ultrasonic cutting hemostasis sword convenient to dismantle tool bit.

Background

The ultrasonic cutting hemostatic scalpel is suitable for being used in endoscopic surgery and conventional open surgery to separate, cut and stanch soft tissues, and specifically comprises point coagulation at the head of a scalpel head, hemostasis on a blunt surface of the scalpel head, slow cutting, rapid cutting on a sharp surface of the scalpel head and tissue separation. The working principle is that the transducer converts the electric energy into mechanical vibration, and the mechanical vibration is transmitted to the front end of the cutter head through the rod part of the cutter, so that water molecules in tissue cells are vaporized, protein hydrogen bonds are broken, the cells are disintegrated, and tissues are cut or solidified, thereby achieving the purposes of cutting and hemostasis.

The hemostatic scalpel comprises a host and accessories, the accessories comprise an energy converter, a tool bit and a foot switch, the host mainly comprises a circuit board, a case, a front panel, a rear panel, a power switch, a fan, a loudspeaker, an energy converter socket and the like, the energy converter mainly comprises an excitation device and a connecting wire, the energy converter is connected with the energy converter socket through the connecting wire, the tool bit mainly comprises a wave guide rod, a sleeve and a handle, when the tool bit and the energy converter are assembled, the handle knob part of the tool bit is held by one hand, the excitation handle which holds the energy converter by the other hand rotates clockwise, after the transducer rotates to hear two sounds, the predicted assembly of the handle and the energy converter is completed in a clamping way, the handle which holds the tool bit by the other hand when the tool bit and the energy converter are disassembled is needed, the tool bit and the energy converter can be disassembled by holding the excitation handle of the energy converter by the other hand and rotating anticlockwise, whether the installation is completed or not is difficult to judge, the installation is possibly unstable, the transducer is separated from the handle in the use process, the operation is influenced, in addition, the clamping position inside is easy to wear after being rotated forward and backward for a plurality of times for a long time, the connection strength of the handle and the transducer is reduced, and therefore the improved part exists.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model aims to provide an ultrasonic cutting hemostatic knife convenient to dismantle tool bit, when dismantling transducer and handle, only need press the motion pole, separate first semi-ring and second semi-ring, when assembling transducer and handle, only need press the motion pole for whether installation is accomplished to chucking piece and joint hole chucking, need not operating personnel according to sound and go to judge, and the number of times of joint piece wearing and tearing reduces, improves the joint strength of handle and transducer relatively, and concrete scheme is as follows:

an ultrasonic cutting hemostatic knife convenient for detaching a knife head comprises a host, a knife head and a transducer, wherein the transducer is electrically connected with the host through a connecting line, the knife head comprises a handle, a waveguide rod and a knife tip, one end of the waveguide rod is connected with the handle, the other end of the waveguide rod is connected with the knife tip, one end of the transducer connected with the handle is arranged as a connecting end, the handle corresponds to the connecting end and is provided with a connecting groove, a mounting structure is arranged in the connecting groove and comprises a mounting plate, a limiting ring, a clamping block and a jacking component, the mounting plate is fixedly connected with the handle, a rotating shaft is rotatably inserted in the mounting plate, the limiting ring is divided into a first half ring and a second half ring which are symmetrically arranged, the first half ring and the second half ring are respectively made of a magnet and an iron material, one end of the first half ring is hinged with one end of the second half ring through the rotating shaft, the inner walls of the first half ring and the second half ring are both connected with the clamping blocks, clamping holes are formed in the connecting ends corresponding to the clamping blocks, and the clamping blocks are clamped with the clamping holes;

the jacking component comprises a moving rod, the moving rod penetrates through the handle in a sliding mode, one end of the moving rod extends into the connecting groove, the end portion, located in the connecting groove, of the moving rod is arranged in a conical mode to form a jacking inclined plane, one side, close to the moving rod, of the limiting ring is provided with a supporting groove to form a pressed inclined plane, and the jacking inclined plane is in contact with the pressed inclined plane.

Furthermore, the jacking assembly further comprises a telescopic spring and a positioning ring, the positioning ring extends out of the moving rod and is connected with the outer wall of the handle, the telescopic spring is sleeved on the outer wall of the moving rod, and the telescopic spring is located between the positioning ring and the handle.

Furthermore, a buffer cushion layer is arranged on the end face of the moving rod extending out of the handle.

Furthermore, a spacing groove communicated with the opening groove is formed in the limiting ring.

Furthermore, a sliding guide structure is arranged on the mounting plate and comprises a sliding guide rod and sliding guide grooves, the sliding guide rod is connected to the first half ring and the second half ring, the two sliding guide grooves are formed in the mounting plate, and the sliding guide rods penetrate through the sliding guide grooves in a sliding mode.

Further, the mounting panel deviates from the side of spacing ring is connected with the extension post, the hole of supporting has been seted up along the axial to the extension post, the aperture in hole of supporting with the external diameter adaptation of transducer.

Furthermore, a guide arc surface is arranged at the end part of the clamping block, which is far away from the limiting ring.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) when the handle and the transducer need to be disassembled, force is applied to the moving rod, the moving rod is pressed to move downwards, the jacking inclined plane applies force to the compression inclined plane, so that the two ends of the first half ring and the second half ring which are far away from the hinged part after being stressed are mutually far away, the moving rod is positioned between the first half ring and the second half ring, the attraction force between the first half ring and the second half ring is weakened, the clamping block is driven to be separated from the clamping groove, the transducer is separated from the handle, the transducer can be drawn out from the connecting groove, when the handle and the transducer need to be assembled again, the transducer is stretched into the limiting ring, the moving rod is pulled to gradually draw out the moving rod from the connecting groove, when the moving rod is not positioned between the first half ring and the second half ring, the first half ring and the second half ring are mutually close to push the transducer in a reciprocating mode until the clamping block is aligned with the clamping hole on the connecting end and clamped with the clamping hole, the connection is stable, in the process of mounting and dismounting the handle and the transducer, an operator does not need to judge whether the mounting is finished according to sound, the abrasion times of the clamping block are reduced, and the connection strength of the handle and the transducer is relatively improved;

(2) by arranging the telescopic spring and the positioning ring, the telescopic spring is compressed to store elastic potential energy when the motion rod is pressed, the motion rod is released, the motion rod can return to the initial position under the action of the elastic force, the top pressure inclined plane is kept in contact with the pressed inclined plane, and the operation that an operator needs to pull the motion rod is reduced;

(3) the spacing grooves are arranged, so that a certain distance exists between the end surface of the first half ring and the end surface of the second half ring, the first half ring and the second half ring are prevented from being tightly attached, and when the pressing inclined surface presses the pressed inclined surface, the first half ring and the second half ring are conveniently separated;

(4) through setting up and leading smooth structure, when first semi-ring, second semi-ring kept away from each other, lead the slide bar and slide in the guide sliding groove that corresponds, lead the slide bar and play the guide effect for first semi-ring, second semi-ring are according to the orbit stabilizing motion of guide sliding groove.

Drawings

Fig. 1 is an overall schematic view of an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of the display mounting structure of the present invention;

fig. 3 is a schematic structural view showing the position of the locking block of the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 2;

FIG. 5 is a schematic structural view of the transducer of the present invention showing the location of the clamping hole;

FIG. 6 is a schematic structural view showing the connection relationship between the slide guide bar and the slide guide groove;

fig. 7 is a schematic structural view of the tight hole position of the display of the present invention.

Reference numerals: 1. a handle; 01. a connecting groove; 2. a transducer; 21. a connecting end; 22. a clamping hole; 3. mounting a plate; 4. a limiting ring; 41. a first half ring; 42. a second half ring; 5. a clamping block; 51. a guiding cambered surface; 6. ejecting the assembly; 61. a motion bar; 611. pressing the inclined plane; 62. a tension spring; 63. a positioning ring; 7. a pressure ramp; 8. a cushion layer; 9. a spacing groove; 10. a slide guide structure; 101. a guide slide bar; 102. a guide chute; 11. extending the column; 111. abutting the hole; 12. a host; 13. a waveguide rod; 14. a knife tip.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

As shown in figure 1, an ultrasonic cutting hemostatic knife convenient to dismantle tool bit, including host computer 12, tool bit and transducer 2, transducer 2 is connected with host computer 12 electricity through the connecting wire, the tool bit includes handle 1, waveguide pole 13 and knife tip 14, waveguide pole 13's one end and handle 1 fixed connection, waveguide pole 13's the other end is connected with knife tip 14, the one end that transducer 2 and handle 1 are connected is established to link 21, handle 1 corresponds link 21 and has seted up connecting groove 01, be equipped with mounting structure in the connecting groove 01, fixed connection can be dismantled through mounting structure and handle 1 in transducer 2's the link 21 stretches into connecting groove 01, be convenient for dismantle the tool bit from transducer 2.

Referring to fig. 2 and 3, the mounting structure includes a mounting plate 3, a limiting ring 4, a locking block 5 and a pushing assembly 6, the mounting plate 3 is disposed in the connecting groove 01 and fixedly connected to the handle 1, a rotating shaft is rotatably inserted into the lower portion of the mounting plate 3, the limiting ring 4 is divided into a first half ring 41 and a second half ring 42, the first half ring 41 and the second half ring 42 are symmetrically disposed, the first half ring 41 and the second half ring 42 are made of a magnet and an iron material, and the first half ring 41 and the second half ring 42 are attracted to each other to form the annular limiting ring 4 under the action of magnetic force. One end of the first half ring 41 is hinged with one end of the second half ring 42 through a rotating shaft. The inner walls of the first half ring 41 and the second half ring 42 are fixedly connected with three clamping blocks 5 which are uniformly arranged at intervals, and the end part of each clamping block 5, which is far away from the limiting ring 4, is provided with a guide arc surface 51. As shown in fig. 5, six clamping holes 22 are formed in the connecting end 21 corresponding to the clamping block 5, the guide arc surface 51 guides the clamping block 5 to enter the clamping holes 22, the clamping block 5 is clamped with the clamping holes 22, the connecting end 21 is clamped with the limiting ring 4, and the transducer 2 is mounted on the handle 1.

As shown in fig. 2, the ejection assembly 6 includes a moving rod 61, a telescopic spring 62 and a positioning ring 63, the moving rod 61 is slidably disposed on the handle 1, one end of the moving rod 61 extends into the connecting groove 01, and the other end of the moving rod extends out of the handle 1. The end of the moving rod 61 in the connecting groove 01 is tapered to form a pressing slope 611, one side of the limiting ring 4 close to the moving rod 61 is provided with a spreading groove to form a pressed slope 7, specifically, the spreading grooves are symmetrically formed on the first half ring 41 and the second half ring 42, and the pressing slope 611 is in contact with the pressed slope 7. The positioning ring 63 and the moving rod 61 extend out of the outer wall of the handle 1 to be fixedly connected coaxially, the extension spring 62 is sleeved on the outer wall of the moving rod 61, the extension spring 62 is located between the positioning ring 63 and the handle 1, and two ends of the extension spring 62 are respectively abutted to the outer surfaces of the positioning ring 63 and the handle 1.

When the moving rod 61 is pressed, the pressing inclined surface 611 applies an acting force to the pressing inclined surface 7, the two end surfaces of the first half ring 41 and the second half ring 42, which are far away from the hinge joint, are gradually separated, so that the first half ring 41 can be relatively far away from the second half ring 42, the space between the first half ring 41 and the second half ring 42 is gradually increased, the locking block 5 is gradually separated from the locking hole 22, at this time, the space formed by the limiting ring 4 is larger than the outer diameter of the connecting end 21, and the transducer 2 can be directly drawn out.

When the handle 1 and the transducer 2 need to be reassembled, the moving rod 61 is pressed to separate the first half ring 41 from the second half ring 42, the transducer 2 is inserted into the connecting groove 01, so that the connecting end 21 and the transducer 2 are respectively positioned in the limiting ring 4 and the extension column 11, the moving rod 61 is released, the first half ring 41 and the second half ring 42 are close to each other, and the transducer 2 is pushed to and fro until the clamping block 5 is aligned with the clamping hole 22 on the connecting end 21 and clamped with the clamping hole 22.

With reference to fig. 2 and 4, preferably, a cushion layer 8 made of rubber material is bonded to the end surface of the moving rod 61 extending out of the handle 1, so as to reduce the hardness of the moving rod 61 when contacting with the hand, thereby facilitating the hand pressure and reducing the pain. Spacing grooves 9 communicated with the opening grooves are formed in the limiting ring 4, so that a certain distance exists between the end face of the first half ring 41 and the end face of the second half ring 42, the attractive force between the first half ring 41 and the second half ring 42 is reduced, the first half ring 41 and the second half ring 42 are prevented from being attached too tightly, and when the pressing inclined surface 611 presses the pressing inclined surface 7, the first half ring 41 and the second half ring 42 are convenient to separate.

As shown in fig. 6, a slide guiding structure 10 is disposed on the mounting plate 3, the slide guiding structure 10 includes a slide guiding bar 101 and a slide guiding slot 102, the first half ring 41 and the second half ring 42 are both fixedly connected with the slide guiding bar 101, the mounting plate 3 is provided with two slide guiding slots 102, a track of the slide guiding slot 102 is formed according to a rotating track of the first half ring 41 and the second half ring 42 around the rotating shaft, the slide guiding bar 101 is correspondingly slidably disposed in the slide guiding slot 102, when the first half ring 41 and the second half ring 42 are away from each other, the slide guiding bar 101 slides in the corresponding slide guiding slot 102, and the slide guiding bar 101 plays a guiding role, so that the first half ring 41 and the second half ring 42 stably move according to the track of the slide guiding slot 102.

As shown in fig. 7, the side of the mounting plate 3 facing away from the stop collar 4 is connected with an extension column 11, the extension column 11 is axially provided with a tightening hole 111, the aperture of the tightening hole 111 is adapted to the outer diameter of the transducer 2, and when the connecting end 21 is clamped on the stop collar 4, the outer wall of the transducer 2 close to the connecting end 21 is located in the tightening hole 111, so that the transducer 2 is more stably located in the handle 1.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an ultrasonic cutting hemostasis sword convenient to dismantle tool bit, includes host computer (12), tool bit and transducer (2), transducer (2) through the connecting wire with host computer (12) electricity is connected, the tool bit includes handle (1), waveguide pole (13) and knife tip (14), the one end of waveguide pole (13) with handle (1) is connected, the other end of waveguide pole (13) with knife tip (14) are connected, its characterized in that, transducer (2) with the one end that handle (1) is connected is established to link (21), handle (1) corresponds link (21) has seted up connecting groove (01), be equipped with mounting structure in connecting groove (01), mounting structure includes mounting panel (3), spacing ring (4), card dress piece (5) and top-opening subassembly (6), mounting panel (3) with handle (1) fixed connection, a rotating shaft is inserted on the mounting plate (3) in a rotating manner, the limiting ring (4) is divided into a first half ring (41) and a second half ring (42) which are symmetrically arranged, the first half ring (41) and the second half ring (42) are respectively made of magnets and iron materials, one end of the first half ring (41) is hinged with one end of the second half ring (42) through the rotating shaft, the inner walls of the first half ring (41) and the second half ring (42) are both connected with the clamping block (5), a clamping hole (22) is formed in the connecting end (21) corresponding to the clamping block (5), and the clamping block (5) is clamped with the clamping hole (22);

the ejection component (6) comprises a moving rod (61), the moving rod (61) penetrates through the handle (1) in a sliding mode, one end of the moving rod (61) extends into the connecting groove (01), the end portion, located at the connecting groove (01), of the moving rod (61) is arranged in a conical mode to form an ejection pressure inclined surface (611), one side, close to the moving rod (61), of the limiting ring (4) is provided with a supporting groove to form a compression inclined surface (7), and the ejection pressure inclined surface (611) is arranged in a contact mode with the compression inclined surface (7).

2. The ultrasonic cutting hemostatic knife convenient for detaching the knife head according to claim 1, wherein the ejection assembly (6) further comprises a telescopic spring (62) and a positioning ring (63), the positioning ring (63) and the moving rod (61) extend out of the outer wall of the handle (1) to be connected, the telescopic spring (62) is sleeved on the outer wall of the moving rod (61), and the telescopic spring (62) is located between the positioning ring (63) and the handle (1).

3. The ultrasonic cutting hemostatic scalpel facilitating bit detachment according to claim 2, wherein the end face of the moving rod (61) extending out of the handle (1) is provided with a buffer cushion (8).

4. The ultrasonic cutting hemostatic scalpel facilitating bit detachment according to claim 1, wherein the limiting ring (4) is provided with a spacing groove (9) communicated with the opening groove.

5. The ultrasonic cutting hemostatic scalpel facilitating tool bit detachment according to claim 1, wherein the mounting plate (3) is provided with a sliding guide structure (10), the sliding guide structure (10) comprises a sliding guide rod (101) and a sliding guide slot (102), the sliding guide rod (101) is connected to each of the first half ring (41) and the second half ring (42), the mounting plate (3) is provided with two sliding guide slots (102), and the sliding guide rod (101) is correspondingly slidably inserted into the sliding guide slots (102).

6. The ultrasonic cutting hemostatic scalpel facilitating bit detachment according to claim 1, wherein the side surface of the mounting plate (3) away from the limiting ring (4) is connected with an extension column (11), the extension column (11) is axially provided with a propping hole (111), and the diameter of the propping hole (111) is matched with the outer diameter of the transducer (2).

7. The ultrasonic cutting hemostatic knife convenient for detaching the knife head according to claim 1, wherein the end of the locking block (5) far away from the limiting ring (4) is provided with a guide arc surface (51).