CN113558787A

CN113558787A - Auxiliary fixing device for general surgery department operation

Info

Publication number: CN113558787A
Application number: CN202110826266.1A
Authority: CN
Inventors: 蔡华杰; 胡炳仁; 杨寿璋
Original assignee: First Affiliated Hospital of Wenzhou Medical University
Current assignee: First Affiliated Hospital of Wenzhou Medical University
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2021-10-29

Abstract

The utility model relates to an auxiliary fixing device for general surgery operation, which comprises a device body and a surgical instrument, wherein the device body is combined with the surgical instrument, the surgical instrument at least comprises a movable clamping arm and a fixed clamping arm which are hinged with each other, the device body comprises a hollow body, one end of the body is provided with an external thread and is fixedly connected with a bearing object through a fixed nut, and the other end of the body is constructed as a connecting end; a sliding part is arranged on one side of the connecting end in the body; the connecting end is rotatably connected with an end cover and is connected with a connecting seat through the end cover key, one end of the connecting seat is abutted against the sliding piece, the other end of the connecting seat is connected with the movable clamping arm through the end cover, and the fixed clamping arm is connected to the end cover; the bottom of the sliding part is provided with a first spring which is configured to abut against the sliding part so that the connecting seat provides clamping force for the movable clamping arm.

Description

Auxiliary fixing device for general surgery department operation

Technical Field

The invention relates to a medical instrument, in particular to an auxiliary fixing device for general surgery operations.

Background

The Department of general surgery (Department of general surgery) is a clinical discipline which takes operation as a main method to treat other diseases such as liver, biliary tract, pancreas, gastrointestinal tract, anorectum, vascular diseases, thyroid and breast tumors, trauma and the like, and is the largest special discipline of a surgical system. In general surgery, according to the disclosure of "medical instrument classification catalog" published in 2018, the basic surgical instruments commonly used at present can be classified into: basic surgical knives, basic surgical scissors, basic surgical forceps holders, basic surgical needles/hooks, or instrument holders, etc. The instrument clamping device can replace manual work to carry out auxiliary fixation of instruments when a doctor carries out an operation. Especially for surgical scissors or surgical forceps, the operation is performed by the way of holding by an instrument nurse, but this requires a higher operation stability of the operator, and the physical strength of the medical staff is also a great challenge if the operation time is longer.

Disclosure of Invention

In view of the above problems of the prior art, an object of the present invention is to provide an auxiliary fixing device for general surgery operation, which can perform auxiliary clamping and fixing of surgical scissors or surgical forceps that need to be held for a long time.

In order to achieve the above object, an aspect of the present invention provides an auxiliary fixing device for general surgery, including a device body and a surgical instrument, the device body being combined with the surgical instrument, the surgical instrument including at least a movable clamping arm and a fixed clamping arm hinged to each other, wherein the device body includes a hollow body, one end of the body is provided with an external thread and is fixedly connected to a load via a fixing nut, and the other end of the body is configured as a connection end; a sliding part is arranged on one side of the connecting end in the body; the connecting end is rotatably connected with an end cover and is connected with a connecting seat through the end cover key, one end of the connecting seat is abutted against the sliding piece, the other end of the connecting seat is connected with the movable clamping arm through the end cover, and the fixed clamping arm is connected to the end cover; the bottom of the sliding part is provided with a first spring which is configured to abut against the sliding part so that the connecting seat provides clamping force for the movable clamping arm.

Preferably, the movable clamping arm comprises a first clamping arm and a second clamping arm which are hinged to each other, the first clamping arm is hinged to the fixed clamping arm, and the free end of the second clamping arm is hinged to the connecting seat.

Preferably, the first holding arm is bent outward in an arc shape with respect to the fixed holding arm.

Preferably, a hinge point of the free end of the second clamping arm and the connecting seat is hinged to a sliding arm, a sliding groove is formed in one side of the fixed clamping arm, and the free end of the sliding arm is arranged in the sliding groove in a sliding mode.

Preferably, the connecting seat is axially provided with a rotating shaft, and the free end of the second clamping arm is hinged on the rotating shaft.

Preferably, a first tooth protrusion is arranged on the periphery of the connecting seat close to the bottom end of the sliding part, the first tooth protrusion can rotate along the axis of the connecting seat and the end cover along the axis of the first tooth protrusion, and a second tooth protrusion is arranged on the inner edge of the sliding part close to one side of the end cover; the first gear protrusion has a first state engaged with the second gear protrusion and a second state coinciding with and located below the second gear protrusion.

Preferably, the end cover part is inserted into the connecting end, a plurality of blind holes are formed in the side edge of the end cover, the side edge of the end cover is located in the connecting end, a plurality of through holes are formed in the connecting end corresponding to the blind holes, and balls are arranged in the through holes, so that the end cover can rotate relative to the body.

Preferably, a hoop is arranged on the outer side of the connecting end provided with the through hole.

Preferably, the outer side of the connecting end is provided with a caulking groove, a fillet is arranged in the caulking groove, and the fillet is positioned between the hoop and the connecting end.

Preferably, the surgical instrument is surgical scissors, surgical forceps or surgical tweezers.

In another aspect of the present invention, there is provided an auxiliary fixing device for general surgery, which can be selectively coupled and fixed to a support (e.g., an operating table, a wall, or a medical cart) while using one of the clamp arms of a medical instrument, such as surgical scissors, surgical forceps, or surgical forceps, as a fixed clamp arm and the other clamp arm as a movable clamp arm. Meanwhile, the first spring provides clamping force of the movable clamping arm, and auxiliary fixation of the surgical instrument for general surgery is realized.

Drawings

FIG. 1 is a schematic structural view of an auxiliary fixing device for general surgery of the present invention.

FIG. 2 is a schematic structural diagram of another view of the auxiliary fixing device for general surgery of the present invention.

Fig. 3 is a schematic sectional view (including a partially enlarged view) taken along a-a in fig. 2.

FIG. 4 is a schematic perspective view of another perspective view of the auxiliary fixing device for general surgery of the present invention.

Fig. 5 is a schematic perspective exploded view of the auxiliary fixing device for general surgery of the present invention.

FIG. 6 is a schematic view of the connection structure between the connection seat and the end cap of the auxiliary fixing device for general surgery department of the present invention.

The main reference numbers:

1-fixing a nut; 2-body; 3-connecting the ends; 4-a first spring; 5, clamping a hoop; 6-surgical instruments; 7-a connecting seat, 8-a locking mechanism; 9-a slide; 10-end cap; 21-external thread; 31-a through hole; 32-caulking groove; 61-a movable gripper arm; 62-a fixed clamp arm; 71-a clamping table; 72-first tooth projection; 73-a rotating shaft; 81-a slide button; 82-a second spring; 83-a tongue; 91-second gear convex; 92-a movable floor; 101-a card slot; 102-blind hole; 311-a ball bearing; 321-elastic insertion strip; 611 — a first movable arm; 612-a second movable arm; 613-sliding arm; 621-a chute; 1011-card slot.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.

It should also be understood that, although the invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present invention will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

As shown in fig. 1 to 3, the auxiliary fixing device for general surgery operation according to one embodiment of the present invention comprises a device body combined with a surgical instrument 6, which is a forceps for surgery in this embodiment and comprises at least a movable holding arm 61 and a fixed holding arm 62 hinged to each other, wherein the device body comprises a hollow body 2, one end of the body 2 is provided with an external thread 21 and is fixedly connected with a bearing (not shown) through a fixing nut 1, and the other end of the body 2 is configured as a connecting end 3; a sliding part 9 is arranged on one side of the connecting end 3 in the body 2; the connecting end 3 is rotatably connected with an end cover 10, the connecting end penetrates through the end cover 10 and is connected with a connecting seat 7 in a key mode, one end of the connecting seat 7 is abutted to the sliding piece 9, the other end of the connecting seat penetrates through the end cover 10 and is connected with the movable clamping arm 61, and the fixed clamping arm 62 is connected to the end cover 10; a first spring 4 is disposed at the bottom of the sliding member 9, and the first spring 4 is configured to abut against the sliding member 9 so that the connecting seat 7 provides a clamping force to the movable clamping arm 61. Specifically, in this embodiment of the present invention, when the surgical device 6 needs to be in the clamping state, the movable clamping arm 61 is first manually operated to open, and when the clamping condition is reached, after the movable clamping arm 61 is manually released, the sliding member 9 drives the connecting seat 7 to move upwards and form a continuous clamping fixation under the elastic action of the first spring 4.

In some embodiments, particularly as shown in fig. 3, for convenience of operation, the movable clamp arm 61 may actually include a first clamp arm 611 and a second clamp arm 612 hinged to each other, and such a multi-stage structure may make the operation process smoother. More specifically, as shown in the figure, the first clamping arm 611 is actually hinged to the fixed clamping arm 62, and the free end of the second clamping arm 612 is hinged to the connecting base 7. In addition, as a further improvement, as shown in fig. 1, the first holding arm 611 is curved outward with respect to the fixed holding arm 62. Therefore, when the first clamping arm 611 is operated to open, the fingers can exert force conveniently, and the operation is more convenient.

In addition, the stability requirements for the operation process are relatively high for the surgical instrument, and therefore, in order to improve the clamping stability. As shown in fig. 1 and 4, a hinge point (not shown) at which the free end of the second clamping arm 612 is hinged to the connecting seat 7 is further provided with a sliding arm 613, a sliding slot 621 is provided on one side of the fixed clamping arm 62, and the free end of the sliding arm 613 is slidably disposed in the sliding slot 621. In this embodiment, the sliding arm 613 can effectively prevent the movable holding arm 61 and the fixed holding arm 62 from being misaligned when the switch is operated, thereby weakening the holding force or causing injury to the wound.

Furthermore, in some embodiments, some degree of adjustment of the clamping pose of the surgical instrument 6 may be required due to actual operating environment requirements. In particular, a certain rotation of the surgical instrument 6 is required, for example. Since in the basic implementation the connecting base 7 is keyed with the end cap 10, in order to ensure that the surgical instrument 6 can be rotated, in some embodiments, as shown in fig. 3, the connecting base 7 is axially provided with a rotating shaft 73, and the free end of the second clamping arm 612 is hinged on the rotating shaft 73.

In the present invention, the end cap 10 may be used to adjust the clamping posture of the surgical instrument 6 when the connecting base 7 is rotated. However, in some embodiments, the state can be further maintained by rotation, in particular the state in which the jaws are open. This function can be specifically realized by the following exemplary structure. As shown in fig. 3 and 5, a first tooth protrusion 72 is disposed on the periphery of the connecting seat 7 near the bottom end of the sliding member 9, and the first tooth protrusion 72 can rotate along the axis of the connecting seat 7 and the end cap 10, and a second tooth protrusion is disposed on the inner edge of the sliding member 9 near one side of the end cap 10; the first tooth projection 72 has a first state of meshing with the second tooth projection 91 and a second state of overlapping with the second tooth projection 91 and located below the second tooth projection 91. Specifically, in the first state, the first spring 4 pushes the movable bottom plate 92 of the sliding member 9 upward, and simultaneously the first tooth projection 72 of the connecting seat 7 upward moves to the second tooth projection 91 on the upper portion of the sliding member 9, and the two are engaged. Due to the presence of the elastic force of the first spring 4 and the engagement of the first and

second teeth projections

72 and 91, the surgical instrument 6 can be continuously held in the clamped state. When the opening and closing state needs to be maintained, the movable clamping arm 61 needs to be manually operated, the connecting base 7 moves downwards, the meshing state of the first tooth protrusion 72 and the second tooth protrusion 91 is released, the end cover 10 is rotated at the moment, and the connecting base 7 drives the first tooth protrusion 72 to rotate by a certain angle, which can be exemplified by a state that the first tooth protrusion 72 and the second tooth protrusion 91 are overlapped. At this time, even if the hand is released, the elastic force of the first spring 4 keeps the first tooth projection 72 pressed under the second tooth projection 91 without causing the engagement. Thus, the surgical instrument will remain open at all times. It should be noted that if it is desired to quickly return to the clamping state from the open state, in the present invention, the connecting base 7 will automatically move upward to re-engage the first teeth 72 and the first teeth 91 only by rotating the cap 10 again when the engaging position is reached again due to the first spring 4.

In the above-described configuration, when the first state (clamped state) and the second state (open state) are switched, it is necessary to rely on the rotation of the cap 10. Therefore, preferably, in some modifications, the end cap 10 is partially inserted into the connecting end 3, and a plurality of blind holes 102 are provided at the side edge of the end cap 10 located in the connecting end 3, a plurality of through holes 31 are provided at the connecting end 3 corresponding to the blind holes 102, and balls 311 are provided in the through holes 31, so that the end cap 10 can rotate relative to the body 2. Of course, the clip 5 may be provided outside the ball 311 in consideration of ease of use and medical environment. Specifically, the clamp 5 is hooped outside the connecting end 3 provided with the through hole 31. Meanwhile, in order to improve the assembly structure, a caulking groove 32 is formed on the outer side of the connecting end 3, and a fillet 321 is provided in the caulking groove 32, wherein the fillet 321 is located between the hoop 5 and the connecting end 3. The fillet 321 can effectively reduce unnecessary gaps caused by poor assembly, so that bacteria can invade and breed.

Finally, it is worth mentioning that in the present invention, it is preferable that the surgical instrument 6 is surgical scissors, surgical forceps or surgical pincettes. That is, in practical applications, the replaceability of the surgical instrument 6 needs to be taken into consideration. Therefore, in some embodiments of the present invention, as shown in fig. 4, a locking platform 71 is formed on the top of the connecting base, and a locking protrusion 6131 adapted to the locking platform is formed at one end of the sliding arm 613 connected to the connecting base 7. The solution in which the articulation point of the movable gripping arm is actually located on the snap-on projection facilitates the detachable connection of the surgical instrument 6 to the connection base. And in order to improve the connection stability, a slot (not labeled) may be formed on the connection seat 7 on one side of the clamping platform 71, and the slot may further match with a plug-in part (not shown) formed on the clamping projection 6131. Likewise, corresponding detachable structures can also be correspondingly constructed for the fixed clamp arm 62 portion. For example, referring to fig. 6, the end cap 10 is configured with a locking slot 101 at a position corresponding to the locking platform, and the locking slot 101 may be correspondingly formed in a plug-fit relationship with a plug-in portion 622 disposed at the free end of the fixed clamping arm 62, which may be, for example, a tongue-and-groove mating relationship, or other tenon-and-mortise structures as will be understood by those skilled in the art. Thus, various surgical scissors or forceps suitable for the present invention can be easily replaced. Of course. As a further improvement, as shown in fig. 1, 3 and 6, in order to prevent accidental removal of the instrument during use, the present invention may further include a locking mechanism 8 in the detachable connection, the locking mechanism 8 being configured to lock the fixed clamp arm 62. Specifically, the locking mechanism 8 includes a sliding button 81, a second spring 82 and a tongue 83, the tongue 83 is configured to cooperate with a slot 1011 disposed in the slot to form a locking relationship, the sliding button 81 is slidably disposed on the fixed clamp arm 62 to release the tongue 83 from the engagement with the slot 1011, and the second spring 82 is used to reset the sliding button 81.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. The auxiliary fixing device for the general surgery operation comprises a device body and a surgical instrument, wherein the device body is combined with the surgical instrument, the surgical instrument at least comprises a movable clamping arm and a fixed clamping arm which are hinged with each other, the device body comprises a hollow body, one end of the body is provided with an external thread and is fixedly connected with a bearing object through a fixing nut, and the other end of the body is constructed into a connecting end; a sliding part is arranged on one side of the connecting end in the body; the connecting end is rotatably connected with an end cover and is connected with a connecting seat through the end cover key, one end of the connecting seat is abutted against the sliding piece, the other end of the connecting seat is connected with the movable clamping arm through the end cover, and the fixed clamping arm is connected to the end cover; the bottom of the sliding part is provided with a first spring which is configured to abut against the sliding part so that the connecting seat provides clamping force for the movable clamping arm.

2. The auxiliary fixing device for general surgery operation as claimed in claim 1, wherein the movable clamping arm comprises a first clamping arm and a second clamping arm hinged with each other, the first clamping arm is hinged with the fixed clamping arm, and the free end of the second clamping arm is hinged with the connecting seat.

3. An auxiliary fixture for general surgery as in claim 2, wherein the first clamping arm is bent in an arc shape toward the outside with respect to the fixed clamping arm.

4. The auxiliary fixing device for general surgery department as claimed in claim 2, wherein a hinge point of the free end of the second clamping arm and the connecting seat is further provided with a sliding arm, one side of the fixed clamping arm is provided with a sliding slot, and the free end of the sliding arm is slidably arranged in the sliding slot.

5. An auxiliary fixture for general surgery as claimed in claim 2, wherein said connecting base is axially provided with a rotating shaft, and the free end of said second clamping arm is hinged on said rotating shaft.

6. An auxiliary fixing device for general surgery operation as claimed in claim 1, wherein the connecting seat is provided with a first tooth protrusion near the periphery of the bottom end of the sliding member, and the first tooth protrusion can rotate along the axis of the connecting seat and the end cap, and the sliding member is provided with a second tooth protrusion near the inner edge of one side of the end cap; the first gear protrusion has a first state engaged with the second gear protrusion and a second state coinciding with and located below the second gear protrusion.

7. The auxiliary fixing device for general surgery operation as claimed in claim 1, wherein the end cap portion is inserted into the connecting end, and a plurality of blind holes are formed in the side edge of the end cap in the connecting end, a plurality of through holes are formed in the connecting end corresponding to the blind holes, and balls are arranged in the through holes so that the end cap can rotate relative to the body.

8. An auxiliary fixture for general surgery as claimed in claim 7, wherein a hoop is provided outside the connecting end provided with the through hole.

9. The auxiliary fixture for general surgery as claimed in claim 7, wherein a caulking groove is formed on an outer side of the connecting end, and a fillet is arranged in the caulking groove and is located between the clamp and the connecting end.

10. The surgical auxiliary fixture for general surgery of claim 1, wherein the surgical instrument is surgical scissors, surgical forceps or surgical tweezers.