Aspirator for orthopaedic surgery

Abstract

The utility model discloses an aspirator for orthopaedic surgery, and belongs to the field of medical instruments. The aspirator comprises an aspirator outer cylinder, an aspirator inner cylinder and an aspirator negative pressure switch. The aspirator inner cylinder is provided with an inner cylinder front section and an inner cylinder rear section. And the front section of the inner cylinder is positioned in front of the aspirator outer cylinder. And the rear section of the inner cylinder extends backwards from the front section of the inner cylinder to the inside of the outer cylinder of the aspirator. And the rear section of the inner cylinder is in sliding fit with the aspirator outer cylinder. The aspirator negative pressure switch is provided with a switch blade and a switch knob. And the switch blade is arranged in the aspirator outer cylinder. And the switch knob is in threaded connection with the aspirator outer cylinder. The switch knob and the switch blade are fixedly connected and share the same rotating axis. The negative pressure aspirator has the advantage that the negative pressure and the length of the aspirator can be adjusted.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and particularly to a suction device for plastic surgery. Background Art

[0002] The suction device for plastic surgery aspirates the oozing blood or other exudates in the surgical area through negative pressure to ensure the wound is clean. At present, the suction device for plastic surgery has the following problems: 1. The length of the suction device is fixed and cannot be adjusted. When used in the surgical area for deep muscle flap and fascia flap dissection, it is difficult to meet the clinical needs; 2. The negative pressure adjustment of the suction device is relatively cumbersome. The staff under the operating table needs to operate the main switch of the negative pressure source, which affects the surgical progress; 3. The front end of the suction device is a sharp tip, which is easy to scratch the tissue in the surgical area and cause secondary injuries. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problems such as the non-adjustable length of the suction device in the prior art, and to provide a new suction device for plastic surgery.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows: A suction device for plastic surgery, comprising: a suction device outer cylinder, a suction device inner cylinder, and a suction device negative pressure switch; the suction device inner cylinder has a front inner cylinder section and a rear inner cylinder section. The front inner cylinder section is located in front of the suction device outer cylinder. The rear inner cylinder section extends backward from the front inner cylinder section into the suction device outer cylinder, and the rear inner cylinder section is slidably matched with the suction device outer cylinder; the suction device negative pressure switch has a switch blade and a switch knob. The switch blade is inside the suction device outer cylinder, and the switch knob is screwed on the suction device outer cylinder. The switch knob is fixedly connected to the switch blade and the two have a common rotation axis.

[0005] As a preferred solution of the suction device for plastic surgery, the suction device outer cylinder has an outer cylinder chute extending along the axial direction. The inner cylinder slider fixedly connected to the rear inner cylinder section is accommodated inside the outer cylinder chute, and the inner cylinder slider is slidably matched with the outer cylinder chute.

[0006] As a preferred solution of the suction device for plastic surgery, the included angle between the front inner cylinder section and the rear inner cylinder section is 120° - 150°.

[0007] As a preferred solution of the suction device for plastic surgery, the front inner cylinder section is designed as a non-tip structure. The non-tip structure is a cylindrical barrel. The front end of the front inner cylinder section is closed, and the front inner cylinder section has an inner cylinder through hole.

[0008] Compared with the prior art, the beneficial effects of the present utility model are at least as follows: 1. The negative pressure of the aspirator can be adjusted: the negative pressure of the aspirator can be directly controlled through the negative pressure switch of the aspirator, saving the operation time of the surgeon and improving the operation efficiency; 2. The length of the aspirator can be adjusted: the outer cylinder of the aspirator and the inner cylinder of the aspirator can slide relative to each other; 3. The included angle design between the front section and the rear section of the inner cylinder improves the drawback that the operation of the surgeon is delayed due to the influence of the aspirator on the field of view during the operation.

[0009] In addition to the technical problems solved by the present utility model, the technical features constituting the technical solution, and the beneficial effects brought by these technical features described above, other technical problems that the present utility model can solve, other technical features included in the technical solution, and the beneficial effects brought by these technical features will be further described in detail with reference to the accompanying drawings. Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.

[0011] Figure 2 It is a schematic structural diagram of the negative pressure switch of the aspirator in the embodiment of the present utility model. Detailed Embodiments

[0012] The present utility model will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation on the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0013] Please refer to Figure 1 , which shows an aspirator for plastic surgery.

[0014] The aspirator for plastic surgery includes: an outer cylinder 1 of the aspirator, an inner cylinder 2 of the aspirator, and a negative pressure switch 3 of the aspirator.

[0015] The rear end of the outer cylinder 1 of the aspirator is connected to a negative pressure source.

[0016] The inner cylinder 2 of the aspirator is composed of a front inner cylinder section 21 and a rear inner cylinder section 22. The axial length of the front inner cylinder section 21 is less than the axial length of the rear inner cylinder section 22. The front inner cylinder section 21 is located in front of the outer cylinder 1 of the aspirator. The rear inner cylinder section 22 extends backward from the front inner cylinder section 21 into the interior of the outer cylinder 1 of the aspirator. The rear inner cylinder section 22 is in sliding fit with the outer cylinder 1 of the aspirator. The rear inner cylinder section 22 can be displaced along the axial direction of the outer cylinder 1 of the aspirator, so that the front inner cylinder section 21 approaches or moves away from the outer cylinder 1 of the aspirator, thereby adjusting the actual working length of the aspirator to assist in the operation.

[0017] Please refer to Figure 2 , the negative pressure switch 3 of the aspirator has a switch blade 31 and a switch knob 32. The switch blade 31 is inside the outer cylinder 1 of the aspirator. And, the switch blade 31 is located behind the rear inner cylinder section 22. The switch knob 32 is screwed to the outer cylinder 1 of the aspirator. The switch knob 32 is fixedly connected to the switch blade 31 and the two have a common axis of rotation. The axis of rotation is perpendicular to the axis of the outer cylinder 1 of the aspirator. By operating the switch knob 32, the switch blade 31 is driven to rotate, so as to adjust the actual conduction area of the outer cylinder 1 of the aspirator. It should be noted that the larger the actual conduction area, the greater the negative pressure of the aspirator.

[0018] Preferably, the outer cylinder 1 of the aspirator has an outer cylinder chute 11 extending along the axial direction. An inner cylinder slider 221 fixedly connected to the rear inner cylinder section 22 is accommodated inside the outer cylinder chute 11. The inner cylinder slider 221 is in sliding fit with the outer cylinder chute 11. The inner cylinder slider 221 can be displaced along the axial direction of the outer cylinder chute 11. By operating the inner cylinder slider 221, the displacement of the rear inner cylinder section 22 can be realized.

[0019] Preferably, there is an angle of 120° - 150° between the front inner cylinder section 21 and the rear inner cylinder section 22. Preferably, the angle is 135°. The purpose of configuring the above structure is to avoid the front inner cylinder section 21 affecting the surgeon's field of vision.

[0020] Preferably, the front inner cylinder section 21 is designed as a non-tip structure, such as a cylindrical barrel. The front end of the front inner cylinder section 21 is closed. The front inner cylinder section 21 has an inner cylinder through hole 211. The purpose of configuring the above structure is to ensure the effective aspiration of exudate while avoiding tissue damage.

[0021] The above only expresses the implementation modes of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A suction device for plastic surgery, characterized in that: include: Aspirator outer cylinder, aspirator inner cylinder and aspirator negative pressure switch; The inner cylinder of the suction device comprises an inner cylinder front section and an inner cylinder rear section, the inner cylinder front section is located in front of the outer cylinder of the suction device, the inner cylinder rear section extends backward from the inner cylinder front section to the inside of the outer cylinder of the suction device, and the inner cylinder rear section is slidably matched with the outer cylinder of the suction device; the suction device negative pressure switch comprises a switch blade and a switch knob, the switch blade is inside the outer cylinder of the suction device, the switch knob is screwed onto the outer cylinder of the suction device, the switch knob is fixedly connected to the switch blade, and the two have a common rotation axis.

2. The plastic surgery suction device according to claim 1, characterized in that: The outer cylinder of the suction device has an outer cylinder slide groove extending along the axial direction, and the inner cylinder slide groove contains an inner cylinder slider fixedly connected to the rear section of the inner cylinder, and the inner cylinder slider is slidably matched with the outer cylinder slide groove.

3. The aspirator for plastic surgery according to claim 1, characterized in that: The included angle between the front section of the inner cylinder and the rear section of the inner cylinder is 120°-150°.

4. The plastic surgery suction device according to claim 3, characterized in that: The included angle between the front section of the inner cylinder and the rear section of the inner cylinder is 135°.

5. The aspirator for plastic surgery according to claim 1, characterized in that: The front section of the inner cylinder is designed as a non-pointed structure, the non-pointed structure is a cylindrical cylinder, the front end of the front section of the inner cylinder is closed, and the front section of the inner cylinder has an inner cylinder through hole.

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