A percutaneous gastrostomy device

Abstract

The application discloses a percutaneous gastric interventional fistula device, which comprises a drill, a fixing assembly and a fistula tube drill, the drill is hollow, the end of the drill is provided with a puncture part, the puncture part can drill a fistula hole on an abdominal wall and a gastric wall, the fixing assembly is arranged on the outer wall of the drill and can fix the drill on the fistula hole and seal the fistula hole, and the fistula tube is communicated with the drill, and nutrient liquid can sequentially pass through the fistula tube and the drill and enter a stomach. The percutaneous gastric interventional fistula device can conveniently perform fistulization and simultaneously reduce operation time.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of stoma device, in particular to a percutaneous gastric intervention stoma device. BACKGROUND

[0002] Gastric stoma is a common surgical operation in clinical surgery, which is applied to patients who cannot eat for a long time. The main indications are: 1. Patients with difficulty swallowing caused by central nervous system injury; 2. Patients with tracheostomy due to respiratory dysfunction; 3. Patients with esophageal perforation and food anastomotic leakage; 4. Patients with gastroparesis and gastrointestinal stasis after abdominal surgery; 5. Patients with intestinal obstruction who need long-term tube drainage and decompression.

[0003] The existing gastric stoma method is:

[0004] 1. Inserting a trachea into the stomach through the nostrils, then inflating the trachea to the stomach to make the stomach expand until it is in contact with the abdomen; 2. Using a puncture needle to suture and fix the abdomen and the stomach wall together; 3. Drilling the abdomen and the stomach wall at the same time with a drill bit; 4. Removing the drill bit, inserting a stoma tube into the drill hole, and fixing the stoma tube in the drill hole by the air bag on the stoma tube to complete the entire gastric stoma.

[0005] This method can perform gastric stoma, but the process is complicated, and many instruments are used, which not only prolongs the operation time, but also brings operation trouble to medical staff. SUMMARY

[0006] In view of the deficiencies of the prior art, the technical problem to be solved by the present application is to provide a percutaneous gastric intervention stoma device which can conveniently perform stoma and also reduce the operation time.

[0007] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme: a percutaneous gastric intervention stoma device, comprising:

[0008] A drill, which is hollow, has a puncture part at one end, and can drill a stoma hole on the abdominal wall and the stomach wall;

[0009] A fixing assembly is arranged on the outer wall of the drill and can fix the drill in the stoma hole and also seal the stoma hole; and

[0010] A stoma tube, which communicates with the drill, and the nutrient solution can pass through the stoma tube and the drill into the stomach in sequence.

[0011] Further, the drill includes an outer tube, blades and an inner tube, the outer tube has an insertion end and an exposed end, the blades are flexible and multiple, the multiple blades are arranged at the end of the insertion end of the outer tube in a circumferential interval, and the blade tips of the multiple blades are close to each other to form the puncture part, the inner tube is inserted into the outer tube, the inner tube can move along the axial direction of the outer tube, and the end of the inner tube can pass out of the puncture part, and the stoma tube is connected to the other end of the inner tube.

[0012] Further, the blades are arc-shaped blades, and when the multiple blades are close to each other to form the puncture part, the edges of the adjacent blades abut each other.

[0013] Further, the drill further includes a blade tip protection assembly, the blade tip protection assembly is arranged at the end of the inner tube close to the puncture part, and when the inner tube passes out of the puncture part, the blade tip protection assembly can cover all the blade tips.

[0014] Further, the blade tip protection assembly includes supporting rods and connecting membranes, the supporting rods are multiple, the multiple supporting rods are arranged in a circumferential interval along the inner tube, and each supporting rod is hinged to the bottom end of the inner tube, and the connecting membranes are connected between every two adjacent supporting rods.

[0015] Further, the drill further includes an excess tube, the excess tube is arranged between the outer tube and the inner tube, and the excess tube can move up and down relative to the outer tube or the inner tube.

[0016] Further, the inner wall of the end of the excess tube close to the puncture part is provided with an annular avoiding groove, and the blade tip protection assembly is temporarily arranged in the avoiding groove.

[0017] Further, the circumferential direction of the end of the excess tube close to the puncture part is provided with multiple rolling rollers, and the rollers can roll along the inner wall of the blade.

[0018] Further, the side wall of the excess tube is provided with a first mounting hole, a first clamping block that can be retracted is arranged in the first mounting hole, and the end of the first clamping block is exposed out of the first mounting hole, the first clamping block can be retracted into the first mounting hole by pressing the end of the first clamping block, two first perforations are arranged on the side walls of the outer tube in an interval, the first clamping block can be clamped in any one of the first perforations by moving the excess tube up and down, when the first clamping block is clamped in the first perforation close to the puncture part, the end of the excess tube passes out of the puncture part, and when the first clamping block is clamped in the first perforation away from the puncture part, the end of the excess tube is located in the outer tube.

[0019] Further, a second mounting hole is formed on the side wall of the inner cylinder, a second retractable clamping block is arranged in the second mounting hole, and the end of the second clamping block is exposed outside the second mounting hole. When the end of the second clamping block is pressed, the second clamping block can retract into the second mounting hole. Two second through holes are formed on the side wall of the outer cylinder at intervals. When the inner cylinder is moved up and down, the second clamping block can be clamped in any one of the second through holes. When the second clamping block is clamped in the second through hole away from the puncture part, the blade tip protection assembly is located in the avoiding groove. When the second clamping block is clamped in the second through hole close to the puncture part, the blade tip protection assembly is located in the outer cylinder and is inverted on the blade.

[0020] Advantages of the present application:

[0021] The percutaneous gastric interventional fistula device is used as follows: first, gas is filled into the stomach through the trachea to make the stomach expand until it abuts against the abdominal wall, and then the abdominal wall and the stomach wall are sutured and fixed together by using a puncture needle. The suture line can be circular or two rows of straight lines at intervals. The puncture part can be drilled in the circular suture line or between the two rows of straight lines. Then, the abdominal wall and the stomach wall are simultaneously drilled by using a drill bit of a drill, and the drill is fixed on the fistula hole by using a fixing assembly. Then, nutrient solution can be injected into the stomach through the fistula tube.

[0022] By using the percutaneous gastric interventional fistula device, when the drilling is completed, the drill does not need to be taken out, and the fistula tube does not need to be reinstalled, so that the operation of taking out the drill and reinserting the fistula tube can be reduced, and the operation steps can be greatly reduced. In addition, the fixing assembly is connected with the drill, and when the drilling is completed, the fixing assembly can be directly fixed on the fistula hole, so that the operation steps can be further reduced and the related parts can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present application, the drawings required in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0024] Figure 1 A schematic view of a percutaneous gastric interventional fistula device according to an embodiment of the present application is shown in the figure.

[0025] Figure 2 A schematic view of a percutaneous gastric interventional fistula device according to an embodiment of the present application is shown in the figure. Figure 1 A schematic view of a percutaneous gastric interventional fistula device according to an embodiment of the present application is shown in the figure.

[0026] Figure 3 A schematic view of a percutaneous gastric interventional fistula device according to an embodiment of the present application is shown in the figure. Figure 1A schematic view of a percutaneous gastric interventional fistula device in which an inner tube extends from an over tube;

[0027] Figure 4 As Figure 1 A schematic view of a percutaneous gastric interventional fistula device in which a knife tip protection assembly cover is set on the knife tip;

[0028] Figure 5 As Figure 1 A schematic view of a percutaneous gastric interventional fistula device in which a puncture part is in a retracted state;

[0029] Figure 6 As Figure 1 A schematic view of a percutaneous gastric interventional fistula device in which a knife tip protection assembly is in an open state;

[0030] Reference signs:

[0031] 100, a drill; 110, an outer tube; 111, an insertion end; 112, an exposed end; 113, a first perforation; 120, a blade; 130, an inner tube; 131, a second clamping block; 140, a knife tip protection assembly; 141, a supporting rod; 142, a connecting film; 150, an over tube; 151, an avoiding groove; 152, a roller; 153, a first clamping block; 154, a second perforation; 160, a puncture part;

[0032] 200, a fixing assembly;

[0033] 300, a fistula tube. DETAILED DESCRIPTION

[0034] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0035] Please refer to Figures 1 to 6 The present application provides a percutaneous gastric interventional fistula device, which comprises a drill 100, a fixing assembly 200 and a fistula tube 300, and is used for percutaneous gastric interventional fistula.

[0036] Specifically, the drill 100 is hollow, the end of the drill 100 has a puncture part 160, and the puncture part 160 can drill a fistula hole on the abdominal wall and the gastric wall. The fixing assembly 200 is arranged on the outer wall of the drill 100 and can fix the drill 100 in the fistula hole while sealing the fistula hole. The fistula tube 300 communicates with the drill 100, and nutrient solution can sequentially pass through the fistula tube 300 and the drill 100 to enter the stomach.

[0037] In use, first, the stomach is inflated by filling gas into the stomach through the trachea until the stomach is in contact with the abdominal wall, and then the abdominal wall and the stomach wall are sutured and fixed together by using a puncture needle. The suture line can be circular or two rows of spaced straight lines. The puncture portion 160 can be drilled in the circular suture line or between the two rows of straight suture lines. Then, the drill bit of the drill 100 is used to drill through the abdominal wall and the stomach wall at the same time, and the drill 100 is fixed to the stoma by the fixing assembly 200, and then the nutrient solution can be injected into the stomach through the stoma tube 300.

[0038] By using the percutaneous gastric interventional stoma device, when the drilling is completed, the drill 100 does not need to be removed, and the stoma tube 300 does not need to be reinstalled, which reduces the operation steps. In addition, the fixing assembly 200 is connected with the drill 100, and when the drilling is completed, the fixing assembly 200 can be directly fixed to the stoma, which further reduces the operation steps and reduces the related parts.

[0039] It should be noted that in the embodiment, the stoma tube 300 can be selected from the commonly used stoma tube 300 in the prior art, and the fixing assembly 200 can also be selected from the fixing form of the air bag pressurizing disc combined with the stoma tube 300 in the prior art.

[0040] In the embodiment, the drill 100 includes an outer cylinder 110, a blade 120, and an inner cylinder 130. One end of the outer cylinder 110 is an insertion end 111, and the other end is an exposed end 112. The blade 120 is elastic and has a plurality of blades 120. The plurality of blades 120 are circumferentially spaced apart and arranged at the end of the insertion end 111 of the outer cylinder 110, and the blade tips of the plurality of blades 120 are close to each other to form a puncture portion 160. The inner cylinder 130 is inserted into the outer cylinder 110, and the inner cylinder 130 can move along the axis of the outer cylinder 110. The end of the inner cylinder 130 can pass out of the puncture portion 160, and the stoma tube 300 is connected to the other end of the inner cylinder 130.

[0041] When drilling the stoma, the outer cylinder 110 is held tightly, the puncture portion 160 is aligned with the abdominal wall, and the puncture portion 160 penetrates the abdominal wall and then penetrates the stomach wall, so that the drilling of the stoma is completed. After the drilling is completed, the inner cylinder 130 is pushed in the body direction until the inner cylinder 130 passes out of the puncture portion 160, the nutrient solution can enter the inner cylinder 130 through the stoma tube 300, and then enter the stomach from the inner cylinder 130.

[0042] As a preferred embodiment, the blades 120 are arc-shaped blades, and when the plurality of blades 120 are gathered to form the puncture portion 160, the edges of the adjacent blades 120 abut each other. That is, the puncture portion 160 is a reverse cone shape with a sharp portion at this time, so that the puncture portion 160 can be conveniently drilled into the body, and at the same time, since the edges of the adjacent blades 120 abut each other, the edges of the stoma can be smoothed, and a gap can be avoided in the middle of the puncture portion 160, so that the edges of the stoma form a plurality of cutting edges, which can not only reduce the patient's through hole, but also shorten the recovery time of the wound.

[0043] As a preferred embodiment, the drill 100 further comprises a blade tip protection assembly 140. The blade tip protection assembly 140 is arranged at the end of the inner cylinder 130 close to the puncture portion 160, and when the inner cylinder 130 is pulled out from the puncture portion 160, the blade tip protection assembly 140 can wrap all the blade tips. Through the protection of the blade tip protection assembly 140, the blades 120 can be prevented from causing damage to other tissues.

[0044] Specifically, the blade tip protection assembly 140 comprises a plurality of supporting rods 141 and a connecting film 142. The plurality of supporting rods 141 are arranged at intervals along the circumference of the inner cylinder 130, and each supporting rod 141 is hinged to the bottom end of the inner cylinder 130. The connecting film 142 is connected between each adjacent two supporting rods 141.

[0045] After the drilling is completed, the inner cylinder 130 is pushed in the direction of the body until the end of the inner cylinder 130 is pulled out from the puncture portion 160, at which time the blade tip protection assembly 140 is exposed to the outer cylinder 110 and opens outward to form an inverted umbrella shape, and then the inner cylinder 130 is pulled out of the body until the blade tip protection assembly 140 is inverted on the blade tip to wrap all the blade tips, so that the blade tip can be prevented from scratching the tissues in the body.

[0046] In specific operation, the supporting rods 141 and the inner cylinder 130 can be hinged by torsional springs, so as to ensure that the supporting rods 141 can be unfolded outside the outer cylinder 110; in addition, elastic members can also be arranged between the supporting rods 141 and the inner cylinder 130 to expand the supporting rods 141.

[0047] As a preferred embodiment, the drill 100 further comprises an over cylinder 150, which is arranged between the outer cylinder 110 and the inner cylinder 130, and the over cylinder 150 can move up and down relative to the outer cylinder 110 or the inner cylinder 130.

[0048] When it is necessary to expand the puncture portion 160, the over cylinder 150 can be pushed first to expand the puncture portion 160, and then the inner cylinder 130 is pushed out. Through the over cylinder 150, the blade tip protection assembly 140 can be protected from being scratched by the blade tip.

[0049] In addition, the inner wall of the end of the excess cylinder 150 close to the puncture part 160 is provided with an annular avoiding slot 151, and the blade tip protection assembly 140 is temporarily stored in the avoiding slot 151. Through the avoiding slot 151, the interference between the blade tip protection assembly 140 and the excess cylinder 150 can be avoided. The circumferential direction of the end of the excess cylinder 150 close to the puncture part 160 is provided with a plurality of rollable rollers 152, and the rollers 152 can roll along the inner wall of the blade 120. Through the rollers 152, the friction between the excess cylinder 150 and the inner wall of the blade 120 can be reduced.

[0050] In the embodiment, the side wall of the excess cylinder 150 is provided with a first mounting hole, a first clamping block 153 capable of being retracted is arranged in the first mounting hole, and the end of the first clamping block 153 is exposed outside the first mounting hole. By pressing the end of the first clamping block 153, the first clamping block 153 can be retracted into the first mounting hole. The upper and lower movement of the excess cylinder 150 can be achieved by the first clamping block 153 clamped in any one of the two first perforations 113 arranged on the side wall of the outer cylinder 110 in an interval. When the first clamping block 153 is clamped in the first perforation 113 close to the puncture part 160, the end of the excess cylinder 150 penetrates out of the puncture part 160. When the first clamping block 153 is clamped in the first perforation 113 away from the puncture part 160, the end of the excess cylinder 150 is located in the outer cylinder 110.

[0051] In the specific implementation, the first clamping block 153 can adopt the form of a bolt connected by a spring. The bolt is connected in the first mounting hole by the spring. By pressing the bolt, the bolt can be retracted into the first mounting hole.

[0052] Through the clamping of the first clamping block 153, the position of the end of the excess cylinder 150 is limited to two fixed positions in and out of the outer cylinder 110, so as to prevent the excess cylinder 150 from being arbitrarily extended or retracted out of the outer cylinder 110, thereby affecting the drilling operation or affecting the injection of nutrient solution.

[0053] The side wall of the inner cylinder 130 is provided with a second mounting hole, and a second clamping block 131 capable of being retracted is arranged in the second mounting hole. The end of the second clamping block 131 is exposed outside the second mounting hole. By pressing the end of the second clamping block 131, the second clamping block 131 can be retracted into the second mounting hole. The side wall of the excess cylinder is provided with two second perforations 154 in an interval. The upper and lower movement of the inner cylinder 130 can be achieved by the second clamping block 131 clamped in any one of the second perforations 154. When the second clamping block 131 is clamped in the second perforation 154 away from the puncture part 160, the blade tip protection assembly 140 is located in the avoiding slot 151. When the second clamping block 131 is clamped in the second perforation 154 close to the puncture part 160, the blade tip protection assembly 140 is located in the outer cylinder 110 and is inverted on the blade 120.

[0054] Similarly, in the embodiment, the second clamping block 131 can be in the form of a latch connected with a spring, the latch is connected in the second mounting hole through the spring, and the latch can be retracted into the second mounting hole by pressing the latch.

[0055] In the normal state, the second clamping block 131 is clamped in the second perforation 154 away from the puncture part 160, when it is necessary to protect the blade tip, the second clamping block 131 is first pressed to retract into the second perforation 154, then the inner cylinder 130 is pushed in the direction of the body until the blade tip protection assembly 140 is extended from the over cylinder 150, then the inner cylinder 130 is pulled out of the body, the blade tip protection assembly 140 is inverted on the blade tip, the inner cylinder 130 is continuously pulled until the second clamping block 131 is reinserted into the second perforation 154.

[0056] The position of the inner cylinder 130 can be prevented from sliding arbitrarily by the clamping of the second clamping block 131, and the situation that the blade tip protection is not in place can be avoided.

[0057] It should be noted that, in the embodiment, the outer cylinder 110, the over cylinder 150 and the inner cylinder 130 should be sealed with each other to avoid the flow of liquid between the gaps of the outer cylinder 110, the over cylinder 150 and the inner cylinder 130.

[0058] The specific operation mode and working principle of the percutaneous transgastric interventional fistula device are as follows:

[0059] When the fistula hole is drilled, the outer cylinder 110 is held tightly, the puncture part 160 is aligned with the position where the fistula is needed on the abdominal wall, and the outer cylinder 110 is pressed until the puncture part 160 is inserted into the stomach;

[0060] Then, the first clamping block 153 is pressed to make the first clamping block 153 disengage from the first perforation 113 away from the puncture part 160, then the over cylinder 150 is pushed in the direction of the body until the end of the over cylinder 150 is out of the puncture part 160, at this time, the first clamping block 153 is inserted into the first perforation 113 close to the puncture part 160;

[0061] Then, the second clamping block 131 is pressed to make the second clamping block 131 disengage from the second perforation 154 away from the puncture part 160, then the inner cylinder 130 is pushed in the direction of the body until the blade tip protection assembly 140 is extended from the over cylinder 150, at this time, the blade tip protection assembly 140 is in an open state, then the inner cylinder 130 is pulled out of the body, the blade tip protection assembly 140 is inverted on the blade tip, the inner cylinder 130 is continuously pulled until the second clamping block 131 is reinserted into the second perforation 154.

[0062] Finally, the fixing assembly 200 is fixed in the fistula hole, and the whole fistula work is completed. After the relevant hemostasis operation is performed, the nutrient liquid can be injected into the stomach from the fistula tube 300.

[0063] The above examples are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A percutaneous gastrostomy device, characterized in that, The application relates to a gastric fistula drill, which comprises the following parts: a drill hole, the end of which is provided with a puncture part for drilling a gastric fistula on the abdominal wall and the gastric wall; a fixing assembly arranged on the outer wall of the drill hole, which can fix the drill hole and seal the gastric fistula; and a fistula tube, which is communicated with the drill hole and through which nutrition liquid can enter the stomach. The drill hole comprises an outer cylinder, blades and an inner cylinder, the end of the outer cylinder is an insertion end, the other end is an exposed end, the blades are elastic and arranged on the end of the insertion end of the outer cylinder, the blade tips of the blades are close to each other and form the puncture part, the inner cylinder is inserted into the outer cylinder and can move along the axial direction of the outer cylinder, the end of the inner cylinder can pass through the puncture part, and the other end of the inner cylinder is connected with the fistula tube. The drill hole further comprises a blade tip protection assembly, which is arranged on the end of the inner cylinder close to the puncture part and can cover all the blade tips when the inner cylinder passes through the puncture part. The blades are arc-shaped blades, the edges of the adjacent blades are close to each other when the blades are close to each other and form the puncture part. The blade tip protection assembly comprises supporting rods and connecting membranes, the supporting rods are arranged on the inner cylinder in a circumferential direction, the end of each supporting rod is hinged to the bottom end of the inner cylinder, and the connecting membranes are arranged between the adjacent supporting rods. The drill hole further comprises an excess cylinder, which is arranged between the outer cylinder and the inner cylinder and can move up and down relative to the outer cylinder or the inner cylinder.

2. The percutaneous gastrostomy device according to claim 1, wherein The inner wall of the end of the excess cylinder close to the puncture part is provided with an annular avoiding groove, and the blade tip protection assembly is temporarily arranged in the avoiding groove.

3. The percutaneous gastrostomy device according to claim 1, wherein The circumferential direction of the end of the excess cylinder close to the puncture part is provided with a plurality of rolling wheels, which can roll along the inner wall of the blades.

4. The percutaneous gastrostomy device according to claim 3, wherein The side wall of the excess cylinder is provided with a first mounting hole, a first clamping block is arranged in the first mounting hole and can be retracted into the first mounting hole, two first perforations are arranged on the side wall of the outer cylinder in a circumferential direction, the first clamping block can be clamped in any one of the first perforations by moving the excess cylinder up and down, the end of the excess cylinder passes through the puncture part when the first clamping block is clamped in the first perforation close to the puncture part, and the end of the excess cylinder is located in the outer cylinder when the first clamping block is clamped in the first perforation far away from the puncture part.

5. The percutaneous gastrostomy device according to claim 4, wherein ​ 6. The percutaneous gastrostomy device according to claim 5, wherein ​ 7. The percutaneous gastrostomy device according to claim 4, wherein ​ 8. The percutaneous gastrostomy device according to claim 5, wherein The side wall of the inner cylinder is provided with a second mounting hole, a second retractable clamping block is arranged in the second mounting hole, and an end of the second clamping block is exposed outside the second mounting hole. When the end of the second clamping block is pressed, the second clamping block can retract into the second mounting hole. Two second through holes are arranged on the side wall of the outer cylinder at intervals. When the inner cylinder moves up and down, the second clamping block can be clamped in any one of the second through holes. When the second clamping block is clamped in the second through hole away from the puncture part, the blade tip protection assembly is located in the avoiding groove. When the second clamping block is clamped in the second through hole close to the puncture part, the blade tip protection assembly is located in the outer cylinder and is inverted on the blade.

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