CN212586159U

CN212586159U - Test device for evaluating puncture performance of abdominal puncture outfit

Info

Publication number: CN212586159U
Application number: CN202021974556.8U
Authority: CN
Inventors: 黄军辉; 张莉; 周均; 郑建; 张赛君
Original assignee: Zhejiang Institute Of Medical Device Testing
Current assignee: Zhejiang Institute Of Medical Device Testing
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-02-23
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses an abdominal puncture ware puncture performance evaluation test device, including the frame, adjust support, anchor clamps, motion module, pressure sensor, puncture ware, test material anchor clamps from top to bottom. The frame adopts aluminium alloy and square welding of pipe, adjusts the support from top to bottom and adopts round steel and adjustable ring to realize, and the motion module adopts motor lead screw and guide rail to realize speed control, and pressure sensor adopts high accuracy sensor, and the puncture ware includes disposable belly puncture ware and repetitious usage belly puncture ware. The utility model can test the puncture performance of the abdominal puncture outfit safely, quickly, accurately and reliably so as to evaluate whether the puncture performance of the abdominal puncture outfit meets the standard or the specification of the product technical requirement; the test time is shortened, the measurement accuracy is improved, and the detection efficiency is improved.

Description

Test device for evaluating puncture performance of abdominal puncture outfit

Technical Field

The utility model belongs to medical instrument detection area especially relates to an abdominal puncture ware puncture performance evaluation test device.

Background

The abdomen puncture outfit comprises a disposable abdomen puncture outfit and a repeatedly-used abdomen puncture outfit, and is mainly used for conveying CO into the abdominal cavity after puncturing the abdominal cavity in the laparoscopic surgery₂And gas is used as a passage for the endoscope and the surgical instrument to enter and exit the abdominal cavity. The quality safety of the abdominal cavity puncture outfit, in particular the smoothness and the convenience of the puncture performance in the using process are important for the clinical safety. At present, the puncture performance evaluation of the abdominal puncture outfit has no uniform evaluation test equipment and platform, but a pressure tester is adopted for performance test, so that the operation, the use and the inconvenience are very inconvenient, and the deviation of detection evaluation results is easily generated when the operation flow and the equipment platform are different. Therefore, an intelligent detection device is urgently needed to perform safe, quick, accurate and reliable test on the puncture performance of the abdominal puncture outfit so as to ensure that the puncture performance of the disposable abdominal puncture outfit meets the clinical use requirement.

Disclosure of Invention

An object of the utility model is to provide a not enough to prior art, provide an abdominal puncture ware puncture performance evaluation test device.

The purpose of the utility model is realized through the following technical scheme: a puncture performance evaluation test device for an abdominal puncture outfit comprises a rack, an up-down adjusting bracket, a clamp, a motion module, a pressure sensor and a test material clamp; wherein, the up-down adjusting bracket comprises round steel, an adjusting ring, a supporting plate and a ring-shaped supporting plate; the clamp comprises an upper clamp plate, a lower clamp plate and a fixing screw; the test material clamp comprises a pressing plate and a clamp; the motion module comprises a slide block, a motor and a guide rail; the sliding block moves along the guide rail through a motor lead screw; through holes are formed in the supporting plate, the lower clamp plate and the ring-shaped supporting block; the round steel, the motor and the guide rail are all fixed on the frame; the adjusting ring is sleeved on the round steel, the supporting plate is arranged on the adjusting ring, and the ring-shaped supporting block is positioned in the through hole of the supporting plate; the clamp clamps the pressing plate and the supporting plate simultaneously, and the test material is positioned between the pressing plate and the supporting plate; the upper clamp plate is mounted on the sliding block through a pressure sensor, the fixing screws are screwed with the upper clamp plate and the lower clamp plate at the same time, and the puncture outfit is mounted between the upper clamp plate and the lower clamp plate.

Further, the frame is welded aluminium alloy or square pipe.

Further, the adjusting ring is locked on the round steel through a top thread.

Further, the accuracy of the pressure sensor is 0.1N.

Further, the lower surface of the upper plate of the clamp and the upper surface of the lower plate of the clamp are both padded with silica gel materials.

Furthermore, the ring-shaped supporting block is in clearance fit with the through hole of the supporting block

The utility model has the advantages that: the utility model can test the puncture performance of the abdominal puncture outfit safely, quickly, accurately and reliably so as to evaluate whether the puncture performance of the abdominal puncture outfit meets the standard or the specification of the product technical requirement; the test time is shortened, the measurement accuracy is improved, and the detection efficiency is improved.

Drawings

FIG. 1 is a schematic view of the entire apparatus of the present embodiment;

FIG. 2 is a schematic view of the vertical adjustment bracket of the present embodiment;

FIG. 3 is a schematic view of the clamp of the present embodiment;

FIG. 4 is a schematic view of a test material jig of the present embodiment;

FIG. 5 is a schematic view of the loop support block of the present embodiment;

FIG. 6 is a schematic view of the lower plate of the clamp of the present embodiment;

reference numerals: the device comprises a rack 1, an up-down adjusting bracket 2, a clamp 3, a motion module 5, a pressure sensor 6, a puncture outfit 7, a test material 9, a test material clamp 10, round steel 2-1, an adjusting ring 2-2, a supporting plate 2-3, a ring-shaped supporting block 2-4, a clamp upper plate 3-1, a clamp lower plate 3-2, a fixing screw 3-3, a motor 5-1, a guide rail 5-2, a pressure plate 10-1 and a clamp 10-2.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely for more clearly illustrating the technical solutions of the present invention, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in figure 1, the utility model discloses an abdominal puncture outfit puncture performance evaluation test device, including frame 1, upper and lower regulation support 2, anchor clamps 3, motion module 5, pressure sensor 6 and test material anchor clamps 10. Wherein, frame 1 adopts aluminium alloy or square welding to obtain for fixed adjust support 2, motion module 5 from top to bottom. The motion module 5 is fixed on the frame 1 and comprises a slide block, a motor 5-1 and a guide rail 5-2, the slide block moves along the guide rail through a motor lead screw, and the clamp 3 is fixed on the slide block to realize up-and-down motion. The movement speed of the sliding block can be controlled by controlling the rotating speed of the motor 5-1, and is generally 100 mm/min. The pressure sensor 6 is fixed on the slide block of the motion module 5, and a high-precision sensor (precision 0.1N) is adopted. The puncture outfit 7 is an abdomen puncture outfit, in particular to a disposable abdomen puncture outfit or a repeatedly used abdomen puncture outfit, and is arranged on the clamp 3. The movement of the sliding block of the movement module 5 is controlled by controlling the starting and stopping of the motor 5-1 and the forward rotation and reverse rotation.

As shown in figure 2, the up-down adjusting bracket 2 comprises round steel 2-1, an adjusting ring 2-2, a supporting plate 2-3 and a ring-shaped supporting plate 2-4. The up-down adjusting bracket 2 is fixed on the frame 1 through round steel 2-1; the adjusting ring 2-2 is sleeved on the round steel 2-1 and can be adjusted up and down, the adjusting ring 2-2 can be locked by a manual jackscrew after being adjusted in place, and the up-and-down movement and locking can also be realized by a motor lead screw; the supporting plate 2-3 is arranged on the adjusting ring 2-2, and the supporting plate 2-3 is provided with a through hole; as shown in FIG. 5, the ring-shaped supporting block 2-4 has an outer diameter d1 in clearance fit with the through hole of the supporting plate 2-3, and the ring-shaped supporting block 2-4 with different hole diameters d2 can be replaced according to the diameter of the actually tested puncture outfit 7 so as to adapt to the puncture outfits 7 with various specifications.

As shown in FIG. 3, the clamp 3 is composed of an upper clamp plate 3-1, a lower clamp plate 3-2 and fixing screws 3-3. The lower surface of the upper clamp plate 3-1 and the upper surface of the lower clamp plate 3-2 are both padded with silica gel materials, the puncture outfit 7 is arranged between the upper clamp plate 3-1 and the lower clamp plate 3-2, and the fixing screw 3-3 is screwed with the upper clamp plate 3-1 and the lower clamp plate 3-2 simultaneously and is used for fixing and clamping the puncture outfit 7. The upper plate 3-1 of the clamp is connected with the slide block through a pressure sensor 6. As shown in fig. 6, the lower clamp plate 3-2 is provided with a through hole, the puncture tube penetrates through the through hole of the lower clamp plate 3-2, and the lower clamp plate 3-2 with different hole diameters d3 can be replaced according to the actually tested puncture outfit 7 so as to adapt to the puncture outfits 7 with multiple specifications.

As shown in fig. 4, the test material fixture 10 includes a pressing plate 10-1 and a clamper 10-2. The pressing plate 10-1 presses the test material 9 on the supporting plate 2-3, and the clamper 10-2 clamps the pressing plate 10-1 and the supporting plate 2-3 at the same time to fix the test material 9. The test material 9 is pig abdominal tissue with skin, the frozen fresh storage time is less than 48 hours, and the unilateral size of the test area is at least 10 times of the diameter of the puncture cannula.

The working process of the utility model is as follows:

1. and determining parameters such as the movement speed, the movement distance, the test times and the like of the sliding block of the movement module 5.

2. The clamp 3 clamps the puncture instrument 7.

3. Entering a testing step:

3.1 when using the puncture instrument 7 having the function of cutting the skin:

a) the test material 9 is clamped on the test material jig 10.

b) The motor 5-1 is controlled to start the movement module 5, the motor rotates forwards, the puncture outfit 7 punctures the test material 9 at the speed of 100mm/min until the puncture tube completely enters the test material 9, the motor 5-1 is controlled to stop the movement module 5, and the maximum force value measured by the pressure sensor 6 is the puncture force of the puncture outfit 7.

c) The motor 5-1 is controlled to start the motion module 5, the motor rotates reversely, and the puncture outfit 7 returns to a proper position for the next test.

3.2 when using the puncture instrument 7 without skin cutting function:

a) the test material 9 is clamped on the test material jig 10.

b) The skin of the test material 9 was scratched to form a cut of the diameter of the puncture tube, and the cut should completely scratch the dermis.

c) The position of the up-and-down adjusting bracket 2 is adjusted to ensure that the head end of the puncture outfit 7 is contacted with the incision of the test material 9 but is not stressed.

d) The motor 5-1 is controlled to start the movement module 5, the motor rotates forwards, the puncture outfit 7 punctures the test material 9 at the speed of 100mm/min until the puncture tube completely enters the test material 9, the motor 5-1 is controlled to stop the movement module 5, and the maximum force value measured by the pressure sensor 6 is the puncture force of the puncture outfit 7.

e) The motor 5-1 is controlled to start the motion module 5, the motor rotates reversely, and the puncture outfit 7 returns to a proper position for the next test.

Claims

1. The utility model provides an abdomen puncture ware puncture performance evaluation test device which characterized in that: the device comprises a rack, an up-down adjusting bracket, a clamp, a motion module, a pressure sensor and a test material clamp; wherein, the up-down adjusting bracket comprises round steel, an adjusting ring, a supporting plate and a ring-shaped supporting plate; the clamp comprises an upper clamp plate, a lower clamp plate and a fixing screw; the test material clamp comprises a pressing plate and a clamp; the motion module comprises a slide block, a motor and a guide rail; the sliding block moves along the guide rail through a motor lead screw; through holes are formed in the supporting plate, the lower clamp plate and the ring-shaped supporting block; the round steel, the motor and the guide rail are all fixed on the frame; the adjusting ring is sleeved on the round steel, the supporting plate is arranged on the adjusting ring, and the ring-shaped supporting block is positioned in the through hole of the supporting plate; the clamp clamps the pressing plate and the supporting plate simultaneously, and the test material is positioned between the pressing plate and the supporting plate; the upper clamp plate is mounted on the sliding block through a pressure sensor, the fixing screws are screwed with the upper clamp plate and the lower clamp plate at the same time, and the puncture outfit is mounted between the upper clamp plate and the lower clamp plate.

2. The device for evaluating and testing the puncture performance of an abdominal puncture outfit according to claim 1, wherein: the frame is welded aluminium alloy or square pipe.

3. The device for evaluating and testing the puncture performance of an abdominal puncture outfit according to claim 1, wherein: the adjusting ring is locked on the round steel through a top thread.

4. The device for evaluating and testing the puncture performance of an abdominal puncture outfit according to claim 1, wherein: the accuracy of the pressure sensor is 0.1N.

5. The device for evaluating and testing the puncture performance of an abdominal puncture outfit according to claim 1, wherein: the lower surface of the upper clamp plate and the upper surface of the lower clamp plate are both padded with silica gel materials.

6. The device for evaluating and testing the puncture performance of an abdominal puncture outfit according to claim 1, wherein: the ring-shaped supporting block is in clearance fit with the supporting block through hole.