CN105477692B - Hysteroscope pneumoperitoneum not damaged suction aspirator tip end device - Google Patents

Abstract

The invention discloses a head-end device of a pneumoperitoneum non-injury suction device for laparoscopy, comprising: a suction tube, a control valve, a sponge ball for dipping and suction, and a sponge ball controller. The suction tube is an intermediate support structure, the rear end communicates with the inner cavity of the control valve, and the top end of the suction tube is connected with a dipping sponge ball, and the two are screwed together and sealed. The dipping sponge ball includes the outer conical bracket, the connecting web between the conical brackets, the elastic sponge in the conical bracket and the arc top formed by the one-way water-permeable composite fiber membrane at the front end, which can ensure the one-way circulation of the suctioned peritoneal fluid. Prevents backflow of the aspiration fluid and reduces the possibility of damaging the pneumoperitoneum. The sponge ball controller is set outside the dipping and suctioning sponge ball, which can control the opening and closing of the dipping and suctioning sponge ball, so as to facilitate the insertion or removal of the tip device of the pneumoperitoneum non-invasive aspirator for laparoscopy from the puncture hole of the abdominal wall. The invention is more suitable for pneumoperitoneum laparoscopic operation.

Description

Endoscopic Pneumoperitoneum Atraumatic Aspirator Head Device

technical field

The invention relates to the technical field of instruments for minimally invasive surgery, in particular to a head end device of a pneumoperitoneum non-invasive aspirator for laparoscopy.

Background technique

Laparoscopic surgery is a minimally invasive surgical technique. Due to the advantages of small intraoperative trauma and fast postoperative recovery, it has rapidly emerged in recent years. Laparoscopic surgery has been widely used in general surgery, obstetrics and gynecology, urology, bone and joint surgery Surgery, Thyroid and Breast Surgery, etc. During laparoscopic surgery, a good surgical field of view and operating space are the key to ensure the smooth progress of the operation, and the effective insufflation pressure (maintain the insufflation pressure at 12mmHg-16mmHg through the CO2 insufflation machine) and clean (no bleeding) ) surgical wound is an important guarantee for laparoscopic surgery. At present, in laparoscopic surgery, the main methods for clearing wound bleeding and exudate are aspirator suction and gauze dipping. The gas is sucked away together, resulting in the collapse of the abdominal wall, and the rapid disappearance of the observation and operation space. It is necessary to wait for continued inflation to establish a pneumoperitoneum space before continuing to observe and operate, which will delay the best observation time point and surgical operation timing; The gauze is generally a small square gauze, and the small square gauze dipping is only suitable for bleeding and less exudate, and the surgical instruments need to be replaced repeatedly to pick and place the gauze during use, which will delay the operation time.

Therefore, the most ideal aspirator device in laparoscopic surgery should be suitable for dealing with bleeding and exudation of the wound surface in any situation, and try to avoid sucking away the abdominal gas and destroying the pneumoperitoneum as much as possible during the suction. At present, there is no relevant device or product at home and abroad to meet this clinical demand. There is an urgent need for a special medical surgical instrument that can be applied to suck bleeding and exudate in laparoscopic surgery without destroying the pneumoperitoneum pressure and observation space. And applicable to the actual clinical situation.

Contents of the invention

In view of the above problems, the object of the present invention is to provide a head-end device of a pneumoperitoneum non-invasive aspirator for laparoscopy, which is used to fully absorb or pick up abdominal bleeding or exudate, and is suitable for actual clinical needs, especially suitable for bleeding Faster, critical situation during surgery. Using the structure of the invention can more effectively soak and suck blood and exudate, protect the pneumoperitoneum, maintain the necessary operating space, and be more conducive to the normal and smooth operation of the operation.

In order to achieve the above object, the embodiment of the present invention proposes a head-end device of a pneumoperitoneum non-invasive aspirator for laparoscopy, which includes a suction tube and a control valve, and also includes a sponge ball for dipping and suction and a sponge ball controller, wherein the suction The tube is an intermediate support structure, and the suction tube connects the control valve, the dipping sponge ball and the sponge ball controller; the control valve is located at the end of the suction tube and communicates with the lumen of the suction tube The dipping sponge ball is located at the head end of the suction tube, and the two are screwed and sealed through the threaded structure at the tail of the dipping sponge ball; the sponge ball controller is set outside the dipping sponge ball to control Dip the sponge ball to open and close.

The dipping sponge ball includes an outer conical bracket, a connecting web between the conical brackets, an elastic sponge in the conical bracket and an arc top formed by a one-way water-permeable composite fiber membrane at the front end, wherein the The tapered support is an umbrella-shaped support composed of 8 steel wires, the middle of the tapered support is sealed by the connecting web; the rear end of the elastic sponge is conically stuffed in the tapered support, and the front end of the elastic sponge It is arc-shaped and attached to the unidirectional water-permeable composite fiber membrane; the soaking sponge ball includes two states, that is, the closed state before use and the working state.

The one-way water-permeable composite fiber membrane is synthesized by nanotechnology, and the one-way water-permeable composite fiber membrane is composed of two layers of nano-structured fiber membranes with hydrophilic and hydrophobic differences that are tightly combined and seamlessly connected. The one-way water-permeable composite fiber membrane The membrane is a one-way permeable structure.

The sponge ball controller includes a control ring, a control rod and a control rod clip, wherein the control ring is a smooth circular stainless steel ring, the control ring is welded with the control rod, and the control ring surrounds the Outside the tapered bracket, the control ring slides back and forth to control the opening and closing of the dipping sponge ball; after the control rod is installed, it sneaks into the parallel grooves on both sides of the suction tube; Located at the tail end of the control rod, the clip of the control rod can be fitted with the control groove of the suction tube to adjust the position of the control ring.

The advantages of the embodiments of the present invention are as follows:

1. Combining the characteristics of suction with suction and gauze dipping and rubbing, it can complete the two functions of dipping and suction, reduce the number of side holes around, avoid the trouble of "air leakage" during suction, and do not damage the pneumoperitoneum during suction, reducing the intraoperative waiting time;

2. The pneumoperitoneum non-invasive suction device for laparoscopy can be continuously or repeatedly dipped and sucked, avoiding repeated taking and placing of small square yarns and replacement of surgical instruments, which can save a lot of operation time and make the operation process smoother;

3. The head-end device of the pneumoperitoneum non-invasive aspirator for laparoscopy has two states: closed state and working state, which is convenient for insertion and removal from the minimally invasive puncture hole in the abdominal wall;

4. The one-way permeable composite fiber membrane at the front end of the dipping sponge ball ensures that the peritoneal fluid enters into the dipping sponge ball in one direction, and then is sucked out of the abdominal cavity through the suction tube through negative pressure suction, preventing the liquid from flowing back into the abdominal cavity when the sponge ball is squeezed;

5. The fine control valve at the end of the suction device can effectively control the flow of suction, and is suitable for use in different bleeding or exudate states;

6. The pneumoperitoneum non-invasive aspirator for laparoscopy is easy to disassemble by dipping in the cotton ball, and can be replaced at any time. It can also be removed at the end of the operation to perform the flushing function;

7. The structure is simple, the feasibility is strong, and the clinical practical value is high.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure "working state" of the head-end device of the pneumoperitoneum non-invasive suction device for laparoscopy according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the overall structure "closed state" of the head-end device of the pneumoperitoneum non-invasive aspirator for laparoscopy according to an embodiment of the present invention;

Fig. 3a is a schematic perspective view of the structure of dipping and sucking sponge balls in the head-end device of the pneumoperitoneum non-invasive aspirator for laparoscopy according to an embodiment of the present invention;

Fig. 3b is a schematic cross-sectional view of the sponge ball structure in the head-end device of the pneumoperitoneum non-invasive aspirator for laparoscopy according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of the local structure of the suction tube and the sponge ball controller in the head-end device of the pneumoperitoneum atraumatic suction device for laparoscopy according to an embodiment of the present invention.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

The following examples are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, on the basis of the following descriptions, other different forms of changes or changes can also be made, and these obvious changes or changes that belong to the spirit of the present invention are still within the protection scope of the present invention middle.

As shown in Fig. 1 and Fig. 2, the pneumoperitoneum non-injury suction head device for laparoscopy proposed by the present invention includes the following parts: suction tube (1), control valve (2), dipped and sucked sponge ball (3) and Sponge Ball Controller (4). The four parts form a unified whole to implement the suction function during use. As shown in Figure 1 and Figure 2, the head-end device of the pneumoperitoneum non-invasive aspirator for endoscopy has two working states, that is, an open state and a closed state, of which Figure 1 It is a schematic diagram of the overall structure "working state" of the head end device of the pneumoperitoneum non-injury suction device for endoscopy according to an embodiment of the present invention. Schematic diagram of "closed state", the closed state shown in Figure 2 is convenient for inserting or removing the tip device of the pneumoperitoneum non-invasive aspirator for laparoscopy through the puncture hole of the abdominal wall.

As shown in Figure 1 and Figure 2, the suction tube (1) is an intermediate support structure, which can be a medical stainless steel tube with a diameter of 5mm and a length of 40cm. The tail end of the suction tube (1) is provided with a connecting hole (11), and the connecting hole (11) The card slot with two layers of protrusions is convenient for sealed connection with a negative pressure suction device such as a negative pressure suction pump through a rubber tube or a plastic tube. As shown in Fig. 3(a) and Fig. 3(b), the suction tube (1) and the head-end dipping sponge ball (3) can be threadedly connected. As shown in Figure 4, there are a pair of parallel and opposite sneaking grooves (12) on both sides of the suction tube (1), and there are two control grooves (13) at the tail end of the groove (12), and the two control grooves (13) are separated 3cm, accommodate the control rod (42) and the control rod clip (43) respectively. Wherein, when the head-end device of the pneumoperitoneum non-injury suction device for endoscope is in working condition, the clip of the control rod (43) is located in the control groove (13) on the tail side; When the device is in the closed state, the control lever clip (43) is not clipped at the head side control groove (13).

As shown in Figure 1 and Figure 2, the control valve (2) communicates with the inner cavity of the suction tube (1), and the control valve (2) is located at the end of the suction tube, and the endoscope can be adjusted by arbitrary rotation of the control valve (2) Use pneumoperitoneum for atraumatic suction flow and speed. The control valve (2) can adopt the existing precision three-way control valve, and a flushing pipe (21) is arranged beside the three-way control valve. When the operation is over, the three-way control valve is connected to the flushing pipe (21), and the The head end is dipped in the suction sponge ball (3) and the washing work can be carried out.

As shown in Figure 1, the dipping sponge ball (3) is located at the head end of the suction tube (1). Disassembly and replacement. As shown in Fig. 3 (a), there is a tapered support (31) on the periphery/outside of the sponge ball (3) for dipping and sucking, and a webbed membrane (32) is connected between the tapered support (31). Wherein, the tapered support (31) is made of many such as 8 elastic steel wires with a length of 3cm, the opening angle of the vertebral body can be 60 degrees, the connecting web (32) can be a plastic film, and the elastic steel wires are connected by connecting webs. Membrane (32) seals, dips in and absorbs sponge ball (3) and forms umbrella-like structure around.

As shown in Figure 3 (b), the front end curved spherical surface of the sponge ball (3) is a one-way water-permeable composite fiber membrane (34), and the one-way water-permeable composite fiber membrane (34) is synthesized by nanotechnology, and the one-way water-permeable composite The fiber membrane (34) is composed of two layers of nanostructured fiber membranes with differences in hydrophilicity and hydrophobicity. The two layers of nanostructured fiber membranes are tightly combined and seamlessly connected. The one-way water-permeable composite fiber membrane (34) is a one-way water-permeable structure, which can prevent The sucked blood dripped back into the abdominal cavity again. The elastic sponge (33) that dips in and uses in the sponge ball (3) is a strong water-absorbing sponge, with good elasticity and strong adsorption capacity. The rear end of the elastic sponge (33) is tapered and stuffed in the tapered support (31), and the front end is arc-shaped to fit with the front end unidirectional water-permeable composite fiber membrane (34). When the absorption capacity is close to saturation, suck the blood and water away through the negative pressure suction device such as a negative pressure suction pump at the end; you can also squeeze the sponge by adjusting the control rod (42) and the control ring (41) to discharge the blood and water into the Suction tube in the middle and back section (1).

The working state of dipping and sucking the sponge ball (3) includes two states, open state and closed state. ) returns to the cylindrical state, that is, the closed state, which is convenient for the end device of the endoscopic pneumoperitoneum non-invasive aspirator to be inserted or taken out from the puncture hole as a whole. The conversion of the two states depends on the sponge ball controller (4) outside the tapered bracket (31), the sponge ball controller (4) is set outside the dipped sponge ball (3), and the sponge ball controller (4) includes a control ring (41), control lever (42) and control lever fasten (43). Wherein, the control ring (41) is fastened on the outside of the tapered bracket (31) and can slide smoothly, the control ring is a smooth circular stainless steel ring, the control ring and the control rod are welded together, and the control ring is wrapped around the outside of the tapered bracket, Slide the control ring back and forth to control the opening and closing of the sponge ball (3). After the control rod (42) is installed, it sneaks into the parallel grooves (12) on both sides of the suction tube (1), and controls the control ring (41) through the relative position/fitting of the control rod clip (43) and the control groove (13). ) position, to control the opening and closing state of dipping inhalation sponge ball (3), control lever is not card (43) and is positioned at control lever (42) tail end.

When the suction operation is finished, open the control valve (2), push the control rod (42) forward at the same time, suck up the remaining blood, take back the conical sponge ball (3) dipped in suction, and take out the laparoscope with the pneumoperitoneum non-invasive suction device. If further flushing is required at the end of the operation, the head-end dipping sponge (3) can be removed, and physiological saline can be injected through the flushing hole of the dipping sponge (3) for flushing. The front-end dipping sponge (3) can also be designed as Disposable consumables, each operation can only replace the front-end soaking sponge ball (3).

The advantages of the embodiments of the present invention are as follows:

1. Combining the characteristics of suction with suction and gauze dipping and rubbing, it can complete the two functions of dipping and suction, reduce the number of side holes around, avoid the trouble of "air leakage" during suction, and do not damage the pneumoperitoneum during suction, reducing the intraoperative waiting time;

2. The pneumoperitoneum non-invasive suction device for laparoscopy can be continuously or repeatedly dipped and sucked, avoiding repeated taking and placing of small square yarns and replacement of surgical instruments, which can save a lot of operation time and make the operation process smoother;

3. The head-end device of the pneumoperitoneum non-invasive aspirator for laparoscopy has two states: closed state and working state, which is convenient for insertion and removal from the minimally invasive puncture hole in the abdominal wall;

4. The one-way permeable composite fiber membrane at the front end of the dipping sponge ball ensures that the peritoneal fluid enters into the dipping sponge ball in one direction, and then is sucked out of the abdominal cavity through the suction tube through negative pressure suction, preventing the liquid from flowing back into the abdominal cavity when the sponge ball is squeezed;

5. The fine control valve at the end of the suction device can effectively control the flow of suction, and is suitable for use in different bleeding or exudate states;

6. The pneumoperitoneum non-invasive aspirator for laparoscopy is easy to disassemble by dipping in the cotton ball, and can be replaced at any time. It can also be removed at the end of the operation to perform the flushing function;

7. The structure is simple, the feasibility is strong, and the clinical practical value is high.

Claims (4)

1. a kind of hysteroscope pneumoperitoneum not damaged suction aspirator tip end device, including suction tube and control valve, it is characterised in that also include Suction sponge ball and sponge ball controller are dipped in, wherein,

The suction tube connects the control valve, described dip in and inhales sponge ball and the sponge ball controller；

The control valve is located at the suction tube latter end position and connected with the attraction tube cavity；

It is described dip in suction sponge ball be located at the suction tube most head end, both by dip in inhale sponge ball afterbody helicitic texture screw up, It is tightly connected；The suction sponge ball that dips in includes the connection web film between outside conical support, the conical support, the taper branch The arc top that resilient spongy and front end Unidirectional water permeable composite cellulosic membrane in frame are constituted；

The sponge ball controller cover is dipped in outside suction sponge ball mounted in described, and suction sponge ball folding is dipped in control.

2. hysteroscope according to claim 1 pneumoperitoneum not damaged suction aspirator tip end device, it is characterised in that

The conical support is by the connection web film sealing in the middle of the umbrella support that 8 steel wires are constituted, the conical support；

The resilient spongy rear end is tapered to be packed in the conical support, and the resilient spongy front end is curved with the list Fitted to permeable composite cellulosic membrane；

The suction sponge ball that dips in includes two states, i.e., using preceding closure state and working condition.

3. hysteroscope according to claim 2 pneumoperitoneum not damaged suction aspirator tip end device, it is characterised in that described unidirectional saturating Water composite cellulosic membrane is synthesized using nanometer technology, and the Unidirectional water permeable composite cellulosic membrane has parent by seamless connection of combining closely Two layers of nanostructured fibers film composition of water, hydrophobic difference, the Unidirectional water permeable composite cellulosic membrane is Unidirectional water permeable structure.

4. hysteroscope pneumoperitoneum not damaged suction aspirator tip end device according to claim 2, it is characterised in that the sponge ball control Device processed does not block including control ring, control-rod and control-rod, wherein,

The control ring is smooth circular stainless steel ring, and the control ring welds together with the control-rod, the control ring Surround outside the conical support, the control ring slides back and forth the folding dipped in described in manipulation and inhale sponge ball；

The control-rod moves under water in the parallel groove of the suction tube both sides after installing；

The control-rod is not positioned in the control-rod tail end, and the control-rod does not block can be chimeric with the control flume of the suction tube Adjust the position of the control ring.