CN219130203U

CN219130203U - Sensor protection device for irrigation pipeline flushing

Info

Publication number: CN219130203U
Application number: CN202223085062.6U
Authority: CN
Inventors: 丁健; 王艳; 田晓梦; 李君红; 王大莉; 陈秀丽; 徐氚; 徐萍; 张鸿雁; 彭霞; 程娜
Original assignee: General Hospital of Central Theater Command of PLA
Current assignee: General Hospital of Central Theater Command of PLA
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-06-06
Anticipated expiration: 2032-11-17

Abstract

The application relates to the technical field of medical perfusion pump accessories and provides a sensor protection device for flushing a perfusion pipeline, which comprises a clamp and a handle; the clamp comprises two clamping units which are oppositely arranged, wherein each clamping unit comprises a cover plate, a connecting sheet, a limiting pipe, a limiting end cap, a screw rod and a nut; the front surface of the cover plate is provided with a rubber ring, the cover plate is adhered with a connecting sheet, and the connecting sheet is fixed with a limiting pipe; the limiting end cap is movably arranged in the limiting pipe; one end of the screw rod is inserted into the limiting pipe and connected with the limiting end cap, and the nut is sleeved on the screw rod to be matched with the screw rod in a threaded manner; the handle is connected with nuts of the two clamping units. According to the utility model, the nuts of the two clamping units are connected to the handle, the two clamping units are adjusted to clamp the cover plate, and the cover plate and the rubber ring arranged on the cover plate are used for replacing the thin film piece on the shell of the existing pressure sensor, so that the thin film piece of the pressure sensor is not damaged when the perfusion pipeline is flushed.

Description

Sensor protection device for irrigation pipeline flushing

Technical Field

The utility model belongs to the technical field of medical perfusion pump accessories, and particularly relates to a sensor protection device for flushing a perfusion pipeline.

Background

The medical perfusion pump is used for pressurizing and expanding the cavity by utilizing liquid medium in the endoscopic surgery to form a visible area, can clean blood dirt and tissue fragments in the cavity, has clearer view for observation and surgery, and is suitable for being matched with various endoscopic examinations and surgeries.

Taking a medical perfusion pump with a medical instrument registration certificate number of Zhejiang instrument standard 20172060621 as an example, the medical perfusion pump consists of a host machine, a perfusion pipeline, an accessory suction pipe (JRG-I and JRG-I (A) are not contained), and a liquid storage bottle (JRG-I and JRG-I (A) are not contained). The host consists of a power supply part, a control part, a display part, a driver, a servo motor and a suction pump (JRG-I and JRG-I (A) are not contained); the perfusion pipeline is composed of a sampling module, a silicone tube and a contact pin. The medical perfusion pump utilizes liquid medium to pressurize and expand the cavity, and is suitable for forming visual space and flushing and suction in the cavity in the endoscopic examination and operation. The structure of a main machine of the medical infusion pump can be referred to the utility model patent with the publication number of CN204395201U, and the utility model discloses an infusion suction pump. Or refer to the patent of the utility model with publication number CN208404885U, which discloses a pumping structure of a perfusion suction device. The infusion line of the prior medical infusion pump is shown in fig. 1, and comprises a pump receiving pipe 14, a pressure sensor 10 arranged on the pump receiving pipe 14, two cannulas 16 communicated with the pump receiving pipe 14 through a tee 15, and a pipe clamp 17 arranged on the cannulas 16. Wherein, connect pump line 14 around setting up on the peristaltic pump of host computer, be provided with on the pressure sensor 10 and can lift up film piece 12. Fig. 2 is a schematic perspective view of a conventional pressure sensor, which includes a housing 11, an annular groove 13 disposed on an end surface of the housing 11, and a film 12 engaged with the annular groove 13 and covering the end surface of the housing 11. The structure of the pressure sensor can also refer to the utility model patent with publication number CN205215874U, which discloses a pressure sensing device of the injector.

After the pipe column pipeline of the medical perfusion pump is used, flushing and disinfection treatment is needed. In the flushing process, the film sheet on the pressure sensor is easy to break by high-pressure fluid flowing through the pump connecting pipe, and although the film sheet can be detached from the shell of the pressure sensor, the detached shell is not closed any more, so that the flushing of a lumen is not facilitated. Therefore, there is a need for an alternative means of film sheet that allows the pump tube to be flushed without damaging the film sheet.

Disclosure of Invention

The utility model aims to solve the problem that a film sheet of a pressure sensor of a perfusion pipeline is easy to damage in the flushing process of the perfusion pipeline of the traditional medical perfusion pump, and provides a sensor protection device for flushing the perfusion pipeline, which comprises a clamp and a handle;

the clamp comprises two clamping units which are oppositely arranged, wherein each clamping unit comprises a cover plate, a connecting sheet, a limiting pipe, a limiting end cap, a screw rod and a nut; the front surface of the cover plate is provided with an annular rubber ring, the back surface of the cover plate is adhered with a connecting sheet, the center of the connecting sheet is provided with a through hole, and the end surface of the through hole, which is opposite to the cover plate, is fixedly provided with a limiting pipe; the limiting end cap is movably arranged in the limiting pipe, and the limiting pipe is used for limiting the axial displacement of the limiting end cap; one end of the screw rod is inserted into the limiting pipe and connected with the limiting end cap, and the nut is sleeved on the screw rod and is in threaded fit with the screw rod; the front faces of the cover plates of the two clamping units are arranged in a positive opposite way;

the handle is connected with nuts of the two clamping units.

Further, the limiting pipe is a concentric circular stepped pipe with different diameters, the limiting pipe comprises a first circular pipe, a first circular ring end plate and a second circular pipe, one end of the first circular pipe is fixedly connected with the connecting piece, and the first circular ring end plate is coaxially fixed at the other end of the first circular pipe; one end of the second circular tube is coaxially fixed with the first circular ring end plate;

the limiting end cap is of a concentric circle center step structure with different diameters, the limiting end cap comprises a base and a boss, the base is located in the first circular tube, and the boss is located in the second circular tube.

Further, the limiting end cap is fixedly connected with the screw rod through a screw.

Further, the connecting sheet, the cover sheet, the rubber ring and the screw rod are coaxial, and the diameter of the connecting sheet is larger than or equal to the outer diameter of the rubber ring.

Further, the handle is a U-shaped rod and comprises a vertical rod and two horizontal rods, the two horizontal rods are respectively arranged at two ends of the vertical rod in parallel, and the tail end of each horizontal rod is connected with a nut of one clamping unit.

Further, the screw is a butterfly screw.

The beneficial effects of the utility model are as follows: the nuts of the two clamping units are connected to the handle, and the two clamping units are adjusted to clamp the cover plate mutually, and the cover plate and the rubber ring arranged on the cover plate are utilized to replace the thin film piece on the shell of the existing pressure sensor, so that the thin film piece of the pressure sensor cannot be damaged when the perfusion pipeline is flushed. After the two clamping units are clamped, the rubber ring is clamped in the annular groove of the pressure sensor, so that the pressure sensor is sealed, the integral structure of the clamp and the handle is used for resisting the pressure of flushing water, and the flushing effect of the lumen is guaranteed. The screw rod is unscrewed to realize the disassembly of the clamp, and the use is convenient.

Drawings

Fig. 1 is a schematic structural view of a perfusion tube of a conventional medical perfusion pump.

Fig. 2 is a schematic perspective view of a conventional pressure sensor.

Fig. 3 is a schematic perspective view of a sensor protection device for irrigation pipeline flushing according to the present utility model.

Fig. 4 is an exploded view of one of the clamping units of fig. 3.

Fig. 5 is a schematic view of the clamp-on pressure sensor of the sensor guard for irrigation tubing flushing of fig. 3.

In the figure: cover plate 1, rubber ring 2, connection piece 3, spacing pipe 4, first pipe 41, first ring end plate 42, second pipe 43, spacing end cap 5, base 51, boss 52, screw rod 6, nut 7, screw 8, handle 9, pressure sensor 10, casing 11, film piece 12, ring channel 13, connect pump pipe 14, tee pipe 15, intubate 16, pipe clamp 17.

Detailed Description

The utility model is described in further detail below with reference to the drawings and specific examples.

A sensor guard for irrigation tubing irrigation as shown in fig. 3-5, comprises a clamp and a handle 9.

The clamp comprises two clamping units which are oppositely arranged, wherein each clamping unit comprises a cover plate 1, a connecting sheet 3, a limiting pipe 4, a limiting end cap 5, a screw rod 6 and a nut 7; the front surface of the cover plate 1 is provided with an annular rubber ring 2, the back surface of the cover plate 1 is adhered with a connecting sheet 3, the center of the connecting sheet 3 is provided with a through hole, and the end surface of the through hole, which is opposite to the cover plate 1, is fixedly provided with a limiting pipe 4; the limiting end cap 5 is movably arranged in the limiting tube 4, and the limiting tube 4 is used for limiting the axial displacement of the limiting end cap 5; one end of a screw rod 6 is inserted into the limiting pipe 4 and connected with the limiting end cap 5, a nut 7 is sleeved on the screw rod 6 to be matched with the screw rod in a threaded manner, and the screw rod 6 is preferably a butterfly screw rod; the front faces of the cover plates 1 of the two clamping units are arranged in a positive opposition. As shown in fig. 3, the front faces of the cover plates 1 of the two clamping units, on which the rubber rings 2 are arranged, are opposite, and the back faces of the cover plates 1 of the two clamping units, on which the connecting pieces 3 are arranged, are opposite. It should be noted that, the upper end and the lower end of the housing 11 of the pressure sensor 10 of the perfusion tube to which the present embodiment is applied are respectively provided with a film sheet 12, so that the two clamping units of the present embodiment respectively correspond to one film sheet 12. The pressure sensor 10 provided with only one thin film piece 12 may be used by using any one of the holding units of the present embodiment instead of the thin film piece 12 on the pressure sensor 10, and the use method is the same. The connecting sheet 3, the cover sheet 1, the rubber ring 2 and the screw rod 6 are coaxial, and the diameter of the connecting sheet 3 is larger than or equal to the outer diameter of the rubber ring 2.

The handle 9 connects the nuts 7 of the two clamping units. The handle 9 of this embodiment is a U-shaped rod, including a vertical rod and two horizontal rods, the two horizontal rods are respectively parallel to each other and disposed at two ends of the vertical rod, and the end of each horizontal rod is connected with a nut 7 of a clamping unit. The horizontal rod and the outer wall of the nut 7 are preferably connected by welding. The nut 7 and the handle 9 may be made of metal material, and the screw 6 may be made of plastic material.

As shown in fig. 4, the limiting tube 4 is a concentric circular stepped tube with different diameters, the limiting tube 4 comprises a first circular tube 41, a first circular ring end plate 42 and a second circular tube 43 which are sequentially arranged from bottom to top, one end of the first circular tube 41 is fixedly connected with the connecting sheet 3, and the first circular ring end plate 42 is coaxially fixed at the other end of the first circular tube 41; one end of the second circular tube 43 is coaxially fixed with the first circular end plate 42. The through holes in the connecting piece 3 are concentric with the first circular tube 41 and have the same diameter. The first circular ring end plate 42 is of a circular ring structure, the outer periphery of the first circular ring end plate is welded and fixed with the first circular tube 41, the inner diameter of the first circular ring end plate 42 is smaller than the diameter of the first circular tube 41, the inner diameter of the first circular ring end plate 42 is the same as the inner diameter of the second circular tube 43, the diameter of the second circular tube 43 is smaller than the diameter of the first circular tube 41, the second circular tube 43 and the first circular ring end plate 42 are coaxially welded and fixed, and therefore a circular step cavity is formed in the limiting tube 4 and is formed by encircling the first circular tube 41 and the second circular tube 43, and the first circular ring end plate 42 conducts the first circular tube 41 and the second circular tube 43.

The limiting end cap 5 is of a concentric circle center step structure with different diameters, the limiting end cap 5 comprises a base 51 and a boss 52, the base 51 is located in the first circular tube 41, and the boss 52 is located in the second circular tube 43. The base 51 and the boss 52 are both of cylindrical structures, the outer diameter of the base support is larger than that of the boss 52, the outer diameter of the base 51 is smaller than or equal to that of the first circular ring and larger than that of the second circular ring, so that the limiting end cap 5 penetrates through the through hole of the connecting sheet 3, after entering the limiting tube 4, the base 51 of the limiting end cap 5 is positioned in the first circular tube 41, the boss 52 of the limiting end cap 5 is positioned in the second circular tube 43, the limiting end cap 5 cannot move in a direction away from the connecting sheet 3 again, after the connecting sheet 3 is bonded with the cover sheet 1, the through hole of the connecting sheet 3 is closed by the cover sheet 1, the limiting end cap 5 is limited in the limiting tube 4, and can rotate but cannot leave the limiting tube 4, so that the moving range of the limiting end cap 5 is limited.

The limiting end cap 5 is fixedly connected with the screw rod 6 through a screw 8. Before the connecting piece 3 is connected with the cover piece 1 to close the through hole on the connecting piece 3, the limit end cap 5 is also connected with the screw rod 6 by using the screw 8. Specifically, the diameter of the screw rod 6 is smaller than the inner diameter of the second circular tube 43, so that the screw rod can be inserted into the second circular tube 43, the lower end of the screw rod 6 is abutted against the boss 52 of the limiting end cap 5 after being inserted into the second circular tube 43, and then the screw rod 6 is fixed with the limiting end cap 5 by penetrating the base 51 and the boss 52 from the bottom of the limiting end cap 5 through the screw 8.

Before the screw 8 is connected with the screw 6, the nut 7 is screwed onto the screw 6 from the lower end of the screw 6 in advance, the operation mode is that the nut 7 is placed at the lower end of the screw 6, the screw 6 is rotated to enable the screw 6 to descend relative to the nut 7 until the lower end of the screw 6 is inserted into the second round tube 43 and abuts against the boss 52, the screw 6 is fixed with the limiting end cap 5 by the screw 8, and therefore the relative displacement of the screw 6 and the connecting piece 3 is limited, but the screw 6 can rotate independently relative to the connecting piece 3, when the screw 6 rotates clockwise, the relative height of the nut 7 is unchanged, the screw 6 is downward, and therefore the connecting piece 3 and the cover piece 1 synchronously downward are pressed on the shell 11 of the pressure sensor 10. Conversely, when the screw 6 is rotated counterclockwise, the relative height of the nut 7 is unchanged, the screw 6 is upward, and the cover plate 1 is away from the housing 11 of the pressure sensor 10.

Of course, when the pressure sensor 10 needs to be pressed, the cover plate 1 is covered at the original position of the shell 11 where the film piece 12 is arranged, the rubber ring 2 of the cover plate 1 is clamped in the annular groove 13 of the shell 11, and then the screw 6 is rotated clockwise, so that the cover plate 1 presses the shell 11. The annular groove 13 in the housing 11 is the same size as the rubber ring 2. The purpose of the cover plate 1 of this embodiment to compress tightly the casing 11 is to replace the film sheet 12 on the original casing 11 with the cover plate 1, avoid damaging the film sheet 12 when flushing the lumen provided with the pressure sensor 10, after flushing is completed, the protection device of this embodiment can be disassembled, and then the film sheet 12 is reset.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the utility model without departing from the principles thereof are intended to be comprehended by those skilled in the art and are intended to be within the scope of the utility model.

Claims

1. A sensor protection device for irrigation pipeline flushing, which is characterized by comprising a clamp and a handle;

the clamp comprises two clamping units which are oppositely arranged, wherein each clamping unit comprises a cover plate, a connecting sheet, a limiting pipe, a limiting end cap, a screw rod and a nut; the front surface of the cover plate is provided with an annular rubber ring, the back surface of the cover plate is adhered with a connecting sheet, the center of the connecting sheet is provided with a through hole, and the end surface of the through hole, which is opposite to the cover plate, is fixedly provided with a limiting pipe; the limiting end cap is movably arranged in the limiting pipe, and the limiting pipe is used for limiting the axial displacement of the limiting end cap; one end of the screw rod is inserted into the limiting pipe and connected with the limiting end cap, the nut is sleeved on the screw rod and is in threaded fit with the screw rod, and the front faces of the cover plates of the two clamping units are arranged in a positive opposite mode;

the handle is connected with nuts of the two clamping units.

2. The sensor protection device for irrigation pipeline flushing according to claim 1, wherein the limiting tube is a concentric circular stepped tube with different diameters, the limiting tube comprises a first circular tube, a first circular ring end plate and a second circular tube, one end of the first circular tube is fixedly connected with the connecting sheet, and the first circular ring end plate is coaxially fixed at the other end of the first circular tube; one end of the second circular tube is coaxially fixed with the first circular ring end plate;

3. The sensor guard for irrigation tubing irrigation of claim 2, wherein the limit cap is fixedly connected to the screw by a screw.

4. The sensor guard for irrigation tubing irrigation of claim 2, wherein the connection tab, cover sheet, rubber ring and screw are coaxial and the connection tab has a diameter equal to or greater than the outer diameter of the rubber ring.

5. The sensor protector for irrigation tubing irrigation of claim 2, wherein the handle is a U-shaped rod comprising a vertical rod and two horizontal rods disposed in parallel at both ends of the vertical rod, respectively, and wherein the end of each horizontal rod is connected to a nut of a clamping unit.

6. The sensor guard for irrigation tubing irrigation of claim 1, wherein the screw is a butterfly screw.