CN109907799B

CN109907799B - Scalpel for neurosurgery

Info

Publication number: CN109907799B
Application number: CN201910345158.5A
Authority: CN
Inventors: 余云湖; 周航; 宋元美
Original assignee: Peoples Hospital of Zunyi City
Current assignee: Peoples Hospital of Zunyi City
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2021-02-26
Anticipated expiration: 2039-04-26
Also published as: CN109907799A

Abstract

The scheme discloses a scalpel for neurosurgery, which belongs to the technical field of medical instruments, wherein the top end of a supporting rod is positioned below a push rod, and a gap is reserved between the top end of the supporting rod and the push rod; be equipped with the gasbag on the handle of a knife, be equipped with upper plenum and lower cavity in the handle of a knife, be equipped with spring and piston rod in the upper plenum, the one end and the fixed connection of spring are in the upper plenum, the other end and the piston rod of spring are connected, the piston rod run through the handle of a knife and with catch bar fixed connection, piston rod and handle of a knife sliding connection, the gasbag just is located between spring and the piston rod with upper plenum intercommunication, the piston rod, wash liquor pipe and handle of a knife all are located same vertical face, the through-hole intercommunication on lower cavity and the pipette, be equipped with the leakage fluid dram on the handle of a knife, leakage fluid dram and lower cavity intercommunication. When the application is adopted to carry out neurosurgery on a patient, hematocele and oozing blood generated in the operation process can be sucked and removed, and meanwhile, the hematocele and oozing blood reflux can be avoided.

Description

Scalpel for neurosurgery

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a scalpel for neurosurgery.

Background

Neurosurgery is a branch of surgery, and is a branch of surgery, which is based on surgery as a main treatment means, and is used for researching the injury, inflammation, tumor, deformity and certain genetic metabolic disorders or dysfunctional diseases of human nervous systems, such as brain, spinal cord and peripheral nervous system, and related auxiliary mechanisms, such as skull, scalp and cerebral vessels, and the like, by using a unique neurosurgical research method: the etiology and pathogenesis of epilepsy, Parkinson's disease, neuralgia and other diseases, and explores a high, precise and advanced discipline of new diagnosis, treatment and prevention technology.

The drainage tube is usually placed outside the dura mater, under the dura mater, in the tumor residual cavity, wound cavity or ventricle to drain residual hematocele or oozing blood after operation, because the drainage tube is communicated with the outside, the infection chance is increased, if the nursing is improper, the drainage liquid can generate reverse flow, intracranial infection is easy to generate, once the infection is generated, the state of an illness is critical, the fatality rate and the disability rate are higher, the hospitalization time is prolonged, and the economic burden of a patient is increased.

Disclosure of Invention

The utility model aims at providing a scalpel for neurosurgery to solve the problem that drainage liquid flows against the current easily when adopting prior art to do neurosurgery.

In order to solve the technical problems, the invention provides the following technical scheme: a neurosurgery scalpel comprises a blade and a scalpel handle, wherein the blade is fixedly connected with the scalpel handle, a horizontally arranged liquid suction pipe is fixedly connected to the back of the blade, a suction head is arranged at one end, close to the blade, of the liquid suction pipe, one end, far away from the blade, of the liquid suction pipe penetrates through the scalpel handle and extends to the outside of the scalpel handle, a piston is arranged in the liquid suction pipe, a push rod is fixedly connected to the piston, one end, far away from the piston, of the push rod is located outside the liquid suction pipe, a through hole is further formed in the liquid suction pipe and located in the scalpel handle, a groove is formed in the hole wall of the through hole, a first elastic part is fixedly connected in the groove, a separation blade used for sealing the through hole is fixedly connected to the first elastic part, the separation blade is in sliding connection with the groove, a supporting rod is vertically arranged on the upper surface of the separation blade, the top end of the supporting rod is located, the pushing rod pulls the piston, the piston pushes the abutting rod to move, the first elastic piece in the groove is extruded, and the blocking piece is pushed to enter the groove; the improved liquid discharge device is characterized in that an air bag is arranged on the handle, an upper cavity and a lower cavity are arranged in the handle, a second elastic part and a piston rod are arranged in the upper cavity, one end of the second elastic part is fixedly connected into the upper cavity, the other end of the second elastic part is connected with the piston rod, the piston rod penetrates through the handle and is fixedly connected with a push rod, the piston rod is connected with the handle in a sliding manner, the air bag is communicated with the upper cavity and is located between the second elastic part and the piston rod, the liquid washing pipe and the handle are located on the same vertical plane, the lower cavity is communicated with a through hole in the liquid suction pipe, a liquid discharge port is formed in the handle, the liquid discharge port is communicated with the lower cavity, and a sealing cover.

The working principle of the invention is as follows:

when the neurosurgical scalpel is used for neurosurgery of a patient, a doctor holds the scalpel handle by hand, then the blade is used for operation, when hematocele and oozing blood are generated in the operation process, a doctor firstly puts the suction head on the liquid suction tube into the hematocele and the oozing blood, then the air bag on the knife handle is extruded, so that the air in the air bag enters the upper cavity, the piston rod is pushed to move, because the piston rod, the liquid suction pipe and the knife handle are positioned on the same vertical plane, the piston is arranged in the liquid suction pipe, the piston is fixedly connected with the push rod, one end of the push rod, which is far away from the piston, is positioned outside the liquid suction pipe, the piston rod in the upper cavity penetrates through the knife handle and is fixedly connected with the push rod, the piston rod is connected with the knife handle in a sliding way, therefore, in the process that the piston rod moves towards the outside of the upper cavity, the push rod is driven to pull the piston to move, and then hematocele and oozing blood are sucked into the liquid suction pipe.

Because the liquid suction pipe is also provided with a through hole which is positioned in the knife handle and is communicated with the lower cavity, the hole wall of the through hole is provided with a groove, the groove is internally and fixedly connected with a first elastic part, the first elastic part is fixedly connected with a baffle plate for sealing the through hole, the baffle plate is in sliding connection with the groove, the upper surface of the baffle plate is vertically provided with a support rod, the top end of the support rod is positioned below the push rod, a gap is reserved between the top end of the support rod and the push rod, the piston can push the support rod to move along with the movement of the push rod pulling the piston, so as to extrude the first elastic part in the groove and further push the baffle plate to enter the groove, when the position of the through hole is positioned between the suction head and the piston, the accumulated blood and the oozing blood in the liquid suction pipe enter the lower cavity through the through hole, after the accumulated blood and the oozing blood in the liquid suction pipe flow, the piston rod retracts towards the upper cavity, so that the pushing rod is pulled to push the piston to move, and the blocking piece seals the through hole when the piston is completely separated from the abutting rod due to the restoring force of the first elastic piece; when the hematocele and the oozing blood generated in the operation process are sucked out again, the operation is repeated.

The invention has the beneficial effects that:

when the scheme is adopted for the neurosurgery operation of a patient, when the hematocele and the oozing blood generated in the operation need to be sucked, only the air bag on the knife handle needs to be extruded, the air in the air bag enters the upper cavity, the extrusion piston rod moves towards the outside of the upper cavity to drive the push rod in the liquid suction pipe to move, and then the piston is driven to move, the hematocele and the oozing blood are sucked into the liquid suction pipe, along with the movement of the piston, the push supporting rod is pushed to move to enable the first elastic part to be compressed, and then the hematocele and the oozing blood flow into the lower cavity through the through hole, finally the air bag is loosened, the piston rod returns to the initial state under the restoring force of the second elastic part, when the piston is not in contact with the supporting rod, the separation blade seals the through hole on the liquid suction pipe again, and. Compared with the prior art, when the application is adopted to do neurosurgery for the patient, hematocele and oozing blood which are remained after the operation are eliminated without using the drainage tube, the whole operation process of the application can not be contacted with the outside, the integration of liquid suction and liquid discharge is realized, the infection chance is reduced as much as possible, and the countercurrent of hematocele and oozing blood can not occur.

Furthermore, a sponge is arranged in the lower cavity. The sponge has strong adsorbability, and further can adsorb the accumulated blood and the oozing blood flowing into the lower cavity from the liquid suction pipe.

Furthermore, a plurality of anti-skid stripes are arranged on the surface of the knife handle. When a doctor holds the knife handle by hands, the friction force between the hands and the knife handle is increased, the scalpel is prevented from sliding off the hands of the doctor in the operation process as much as possible, and the patient is prevented from being accidentally injured.

Further, the sealing cover is in threaded connection with the knife handle. The threaded connection mode has a simple structure, is convenient to produce and process, and effectively saves the cost.

Further, the first elastic piece and the second elastic piece are both springs. The spring has simple structure and is convenient to produce and process.

Drawings

Fig. 1 is a schematic structural view of a neurosurgical scalpel according to the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the suction head comprises a suction head 1, a blade 2, a liquid suction pipe 3, a piston 4, a knife handle 5, a push rod 6, an anti-skidding stripe 7, a sponge 8, a through hole 9, a holding rod 10, a baffle 11, a spring 12, an air bag 13, a piston rod 14, a connecting rod 15 and a sealing cover 16.

The embodiment is basically as shown in the attached figure 1:

a neurosurgery scalpel comprises a blade 2 and a scalpel handle 5, wherein the blade 2 is fixedly connected with the scalpel handle 5, a horizontally arranged liquid suction pipe 3 is fixedly connected to the back of the blade 2, a suction head 1 is arranged at one end, close to the blade 2, of the liquid suction pipe 3, one end, far away from the blade 2, of the liquid suction pipe 3 penetrates through the scalpel handle 5 and extends to the outside of the scalpel handle 5, a piston 4 is arranged in the liquid suction pipe 3, a push rod 6 is fixedly connected to the piston 4, one end, far away from the piston 4, of the push rod 6 is located outside the liquid suction pipe 3, a through hole 9 is further formed in the liquid suction pipe 3, the through hole 9 is located in the scalpel handle 5, a groove is formed in the hole wall of the through hole 9, a spring 12 is fixedly connected to the groove, a separation blade 11 used for sealing the through hole 9 is fixedly connected to the spring 12, the separation blade 11 is slidably connected to the groove, a supporting rod 10 is vertically arranged on; the air bag 13 is arranged on the knife handle 5, an upper cavity and a lower cavity are arranged in the knife handle 5, a spring 12 and a piston rod 14 are arranged in the upper cavity, one end of the spring 12 is fixedly connected in the upper cavity, the other end of the spring 12 is connected with the piston rod 14, the piston rod 14 penetrates through the knife handle 5 and is fixedly connected with the push rod 6 through a connecting rod 15, the piston rod 14 is in sliding connection with the knife handle 5, the air bag 13 is communicated with the upper cavity and is positioned between the spring 12 and the piston rod 14, the liquid washing pipe and the knife handle 5 are all positioned on the same vertical plane, the lower cavity is communicated with a through hole 9 in the liquid drawing pipe 3, a liquid discharge port is arranged on the knife handle 5, the liquid discharge; a sponge 8 is arranged in the lower cavity; the surface of the knife handle 5 is provided with a plurality of anti-skid stripes 7; the sealing cover 16 is in threaded connection with the tool shank 5.

When a neurosurgical scalpel is used for a patient to perform neurosurgical operations, a doctor holds a knife handle 5 with a hand and then performs operations by using a blade 2, when hematocele and blood seepage are generated in the operations, the doctor firstly puts a suction head 1 on a liquid suction pipe 3 into the hematocele and the blood seepage and then extrudes an air bag 13 on the knife handle 5, so that air in the air bag 13 enters an upper cavity, a piston rod 14 is pushed to move, because the piston rod 14, the liquid suction pipe 3 and the knife handle 5 are positioned on the same vertical plane, a piston 4 is arranged in the liquid suction pipe 3, a push rod 6 is fixedly connected to the piston 4, one end, far away from the piston 4, of the push rod 6 is positioned outside the liquid suction pipe 3, the piston rod 14 in the upper cavity of the knife handle penetrates through the knife handle 5 and is fixedly connected with the push rod 6, and the piston rod 14 is in sliding connection with the knife handle 5, so that the, the push rod 6 is driven to pull the piston 4 to move, and then the hematocele and the oozing blood are sucked into the liquid suction pipe 3.

Because the liquid suction pipe 3 is also provided with the through hole 9, the through hole 9 is positioned in the knife handle 5, the through hole 9 is communicated with the lower cavity, the hole wall of the through hole 9 is provided with a groove, the groove is internally and fixedly connected with the spring 12, the spring 12 is fixedly connected with the baffle plate 11 for sealing the through hole 9, the baffle plate 11 is in sliding connection with the groove, the upper surface of the baffle plate 11 is vertically provided with the supporting rod 10, the top end of the supporting rod 10 is positioned below the push rod 6 and is provided with a gap with the push rod 6, the piston 4 can push the supporting rod 10 to move along with the movement of the push rod 6, and further push the spring 12 in the groove to further push the baffle plate 11 to enter the groove, when the position of the through hole 9 is positioned between the suction head 1 and the piston 4, the accumulated blood and the oozing blood in the liquid suction pipe 3 enter the lower cavity through the through hole 9, and after the accumulated blood and the, when the air bag 13 is released, the spring 12 returns to the initial state, the piston rod 14 retracts towards the upper cavity, the push rod 6 is pulled to push the piston 4 to move, and the baffle piece 11 seals the through hole 9 when the piston 4 is completely separated from the abutting rod 10 due to the restoring force of the spring 12; when the hematocele and the oozing blood generated in the operation process are sucked out again, the operation is repeated.

Claims

1. The utility model provides a scalpel for neurosurgery, includes blade and handle of a knife, blade and handle of a knife fixed connection, its characterized in that: a horizontally arranged liquid suction pipe is fixedly connected to the back of the blade, a suction head is arranged at one end of the liquid suction pipe close to the blade, one end of the liquid suction pipe far away from the blade penetrates through the handle and extends to the outside of the handle, a piston is arranged in the liquid suction pipe, a push rod is fixedly connected to the piston, one end of the push rod far away from the piston is positioned outside the liquid suction pipe, a through hole is further arranged on the liquid suction pipe and is positioned in the handle, a groove is arranged on the wall of the through hole, a first elastic part is fixedly connected in the groove, a blocking piece used for sealing the through hole is fixedly connected to the first elastic part, the blocking piece is in sliding connection with the groove, a supporting rod is vertically arranged on the upper surface of the blocking piece, the top end of the supporting rod is positioned below the push rod, a gap is reserved between the top end of the supporting rod and the push rod, the, the first elastic piece in the groove is extruded to push the blocking piece to enter the groove; the improved liquid suction device is characterized in that an air bag is arranged on the handle, an upper cavity and a lower cavity are arranged in the handle, a second elastic part and a piston rod are arranged in the upper cavity, one end of the second elastic part is fixedly connected into the upper cavity, the other end of the second elastic part is connected with the piston rod, the piston rod penetrates through the handle and is fixedly connected with the push rod, the piston rod is in sliding connection with the handle, the air bag is communicated with the upper cavity and is located between the second elastic part and the piston rod, the liquid suction pipe and the handle are located on the same vertical plane, the lower cavity is communicated with a through hole in the liquid suction pipe, a liquid discharge port is formed in the handle, the liquid discharge port is communicated with the lower cavity, and a sealing cover for sealing.

2. The neurosurgical scalpel of claim 1, wherein: and a sponge is arranged in the lower cavity.

3. The neurosurgical scalpel of claim 2, wherein: the surface of the knife handle is provided with a plurality of anti-skid stripes.

4. The neurosurgical scalpel of claim 3, wherein: the sealing cover is in threaded connection with the knife handle.

5. The neurosurgical scalpel of claim 4, wherein: the first elastic piece and the second elastic piece are both springs.